Stihl 026 Manual

STIH)

STIHL 026

Instruction Manual

Warning!

To reduce the risk of kickback injury use

STIHL reduced kickback bar and STIHL PM 1

(

3/8" Picco) or RM 2 (0,325") chain depending

on sprocket or other available low kickback

components.

Read and follow all safety precautions in

Instruction Manual – improper use can cause

serious or fatal injury.

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take several steps to keep your

cutting jobs free from accident or

injury.

6. Follow manufacturer’s

sharpening and maintenance

instructions for the saw chain.

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Kickback may occur when the nose

or tip of the guide bar touches an

object, or when the wood closes in

and pinches the saw chain in the

cut. Tip contact in some cases may

cause a lightning fast reverse

reaction, kicking the guide bar up

and back towards the operator.

Pinching the saw chain along the

top of the guide bar may push the

guide bar rapidly back towards the

operator. Either of these reactions

may cause you to lose control of the

saw which could result in serious

personal injury.

With a basic understanding of

kickback, you can reduce or eli-

minate the element of surprise.

Sudden surprise contributes to

accidents.

7. Only use replacement bars and

chains specified by the manu-

facturer or the equivalent.

8. Reduced kickback bars and low

kickback chains are designed

to reduce the risk of kickback

injury. Ask your STIHL dealer

about these devices.

Keep a good firm grip on the

saw with both hands, the right

hand on the rear handle,

and the left hand on the front

handle, when the engine is run-

ning. Use a firm grip with

thumbs and fingers encircling

the chainsaw handles.

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1. Do QRW operate a chainsaw with

one hand! Serious injury to the

operator, helpers, bystanders,

or any combination of these

persons may result from one-

handed operation. A chainsaw

is intended to be used with two

hands.

A firm grip will help you reduce

kickback and maintain control

of the saw.

Section 5.12 of ANSI B 175.1-1991

sets certain performance and

design criteria related to chainsaw

kickback. STIHL has developed a

color code system using green and

yellow to help you select a power-

head, bar and chain combination

that complies with the kickback

requirements of the ANSI Standard.

See the sections entitled "Safety

Precautions" and "Specifications"

of this manual.

Don’t let go.

Make sure the area in which you

are cutting is free from obstruc-

tions. Do not let the nose of the

guide bar contact a log, branch,

or any other obstruction while

you are operating the saw.

2. Do not operate a chainsaw when

you are fatigued.

3. Use safety footwear; snug-fitting

clothing; protective gloves; and

eye, hearing, and head protect-

ion devices.

Cut at high engine speeds.

Do not overreach or cut above

shoulder height.

Do not rely exclusively upon the

safety devices built into your saw.

As a chainsaw user, you should

continued on the back inside cover

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Main Parts of the Saw

Definitions

Safety Precautions

The Operator

The Saw

The Use of the Saw

Maintenance,

Repair and Storing

Mounting the Bar and Chain

Tensioning the Saw Chain

Checking chain tension

Fuel Mix

Fueling

Chain lubricant

Fill chain Oil Tank

Chain Brake

Information Before You Start

Starting the Saw

Checking Chain Lubrication

Oil Quantity Control

During Break- in Period

During Operation

After Finishing Work

Spark Arresting Screen in Muffler

Air Filter System

Electric Handle Heating*

Take Care of Guide Bar

Checking and Replacing

Chain Sprocket

Adjusting Carburetor

Motor management

Checking Spark Plug

Replacing Starter Rope

and Rewind Spring

Maintaining and Sharpening

Saw Chain

Maintenance Chart

Specifications

Ordering Spare Parts

Storing the Machine

STIHL Incorporated Federal Emission

Control Warranty Statement

This Manual contains operating and

safety instructions for all STIHL 026

series power saws.

Pay special attention to the safety

precautions outlined on pages 4 to 22.

Allow only persons who understand this

Manual to operate your chain saw.

To receive maximum performance and

satisfaction from your STIHL chain saw,

it is important that you read and under-

stand the maintenance and safety

precautions before using your saw.

Contact your STIHL dealer or the

STIHL distributor for your area if you do

not understand any of the instructions in

this Manual.

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Because a chain saw is a high-speed

wood-cutting tool, some special safety

precautions must be observed as with

any other power saw to reduce the risk of

personal injury. Careless or improper use

may cause serious or even fatal injury.

Winter Operation

STIHL’s philosophy is to continually

improve all of its products. As a result,

engineering changes and improvements

are made from time-to-time.

If the operating characteristics or the

appearance of your saw differ from

those described in this Manual,

please contact your STIHL dealer for

informations and assistance.

Printed on chlorine-free paper

*(optional extra)



2000 Andreas Stihl AG & Co., Waiblingen

458 133 3021. M8. E0. PM. Printed in USA

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= Twist lock

= Spark plug boot

= Handle heating switch

= Chain sprocket cover

= Chain sprocket

= Chain brake

7 = Chain catcher

= Side chain tensioner

= Bumper spike

10 = Guide bar

11 = Oilomatic saw chain

2 = Oil filler cap

3 = Muffler

4 = Front hand guard

5 = Front handle (handlebar)

16 = Decompression valve

7 = Starter grip

8 = Fuel filler cap

9 = Master Control lever

0 = Throttle trigger

1 = Throttle trigger interlock

2 = Rear handle

3 = Rear hand guard

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A loop consisting of cutters,

tie straps and drive links.

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Must be depressed before the

throttle trigger can be activated.

Lock for carburetor box cover.

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Connects the spark plug with the

ignition wire.

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For closing the oil tank.

The support handle for the right

hand, located at or toward the

rear of the saw.

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For switching the electric handle

heating on and off

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Reduces engine exhaust noise and

directs the exhaust gases.

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Gives added protection to

operator’s right hand.

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Provides protection against

projecting branches and helps

prevent left hand from

Covers the clutch and the sprocket.

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The toothed wheel that drives the

saw chain.

The exposed end of the guide bar.

(not illustrated, see chapter

"Tensioning the Saw Chain".

touching the chain if it slips off

the handle bar.

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Handle bar for the left hand at

front of saw.

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A device to stop the rotation of the

chain if activated in a kickback

situation by the operator’s hand or

by inertia.

Couples engine to chain sprocket

when engine is accelerated beyond

idle speed.

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(not illustrated).

Makes starting easier

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Helps to reduce the risk of operator

contact by a chain when it breaks

or comes off the bar.

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The anti-vibration system includes

a number of buffers designed to

reduce the transmission of vibrations

created by the engine and

The grip of the starter, for starting

the engine.

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Permits precise adjustment of chain

tension.

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cutting attachment to the

operator’s hands. (not illustrated).

For closing the fuel tank.

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Lever for choke control,

starting throttle, run and

stop switch position.

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Toothed stop for holding saw steady

against wood.

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Supports and guides the saw chain.

Controls the speed of the engine.

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The use of any chainsaw

may be hazardous.

The saw chain has many

sharp cutters. If the

Have your STIHL dealer show you how

to operate your chainsaw. Observe all

applicable local safety regulations,

standards and ordinances.

Safe use of a chainsaw involves

1. the operator

2. the saw

cutters contact your flesh,

3. the use of the saw.

they will cut you, even if the chain is not

moving. At full throttle, the chain speed

can reach 45 mph (20 m/s). It is impor-

tant that you read, fully understand

and observe the following safety precau-

tions and warnings. Read the Owner’s

Manual DQGthe safety instructions

periodically.

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Minors should never be allowed to use a

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chainsaw. Bystanders, especially

children, and animals should not be

allowed in the area where a chainsaw is

in use. Never let the saw run unattended.

Store it in a locked place away from

children and empty the fuel tank before

storing for longer than a few days.

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You must be in good physical condition

and mental health and not under the

influence of any substance (drugs,

alcohol) which might impair vision,

dexterity or judgment.

Pay special attention to the section on

reactive forces.

Do not lend or rent your

chainsaw without the

Owner‘s Manual. Be sure

that anyone using your

Do not operate a chainsaw when you are

fatigued. Be alert – If you get tired while

operating your chainsaw, take a break.

Tiredness may result in loss of control.

Working with any chainsaw can be

strenuous. If you have any condition that

might be aggravated by strenuous work,

check with your doctor before operating

a chainsaw.

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Reactive forces, including kickback, can

be dangerous. Careless or improper use

of any chainsaw may cause serious or

fatal injury.

saw reads and under-

stands the information contained in this

manual.

All safety precautions that are generally

observed when working with an ax or a

hand saw also apply to the operation of

chainsaws. However, because a chain-

saw is a high-speed, fast-cutting power

tool, special safety precautions must be

observed to reduce the risk of personal

injury.

These safety precautions and warnings

apply to the use of all STIHL chainsaws.

Different models may have different

parts and controls. See the appropriate

section of your Owner’s Manual for a

description of the controls and function

of the parts of your model saw.

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Prolonged use of chainsaws (or other

machines) exposing the operator to

vibrations may produce whitefinger

disease (Raynaud’s phenomenon) or

carpal tunnel syndrome. These conditions

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reduce the hand’s ability to feel and

regulate temperature, produce numb-

ness and burning sensations and may

cause nerve and circulation damage and

tissue necrosis.

–

Keep the saw chain sharp and the

saw, including the AV system, well

maintained. A dull chain will in-

crease cutting time, and pressing a

dull chain through wood will in-

crease the vibrations transmitted to

your hands. A saw with loose com-

ponents or with damaged or worn

AV buffers will also tend to have

higher vibration levels.

Clothing must be sturdy

and snug-fitting, but allow

complete freedom of

movement. Avoid loose-

fitting jackets, scarfs,

neckties, jewelry, flared or cuffed pants,

unconfined long hair or anything that

could become entangled with the saw or

brush. Wear overalls or jeans with a

reinforced cut retardant insert or cut

retardant chaps.

All factors which contribute to whitefinger

disease are not known, but cold weather,

smoking and diseases or physical condi-

tions that affect blood vessels and blood

transport, as well as high vibration levels

and long periods of exposure to vibration

are mentioned as factors in the develop-

ment of whitefinger disease. In order to

reduce the risk of whitefinger disease

and carpal tunnel syndrome, please

note the following:

–

Maintain a firm grip at all times, but

do not squeeze the handles with

constant, excessive pressures.

Take frequent breaks.

Protect your hands with

gloves when handling

saw and saw chain.

Heavyduty, nonslip

gloves improve your grip

and protect your hands.

All the above mentioned precautions do

not guarantee that you will not sustain

whitefinger disease or carpal tunnel

syndrome. Therefore, continual and

regular users should monitor closely the

condition of their hands and fingers.

If any of the above symptoms appear,

seek medical advice immediately.

–

Many STIHL models are available

with an anti-vibration (“AV”) system

designed to reduce the transmission

of vibrations created by the engine

and cutting attachment to the

operator’s hands. An AV system is

recommended for those persons

using chainsaws on a regular or

sustained basis.

Good footing is most

important in chainsaw

work. Wear sturdy boots

with nonslip soles.

Steel-toed safety boots

are recommended.

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To reduce the risk of injury to your eyes

never operate a chainsaw unless

wearing goggles or properly fitted safety

glasses with adequate top and side

protection complying with your national

standard.

–

Wear gloves and keep your hands

warm. Heated handles, which are

available on most STIHL power-

heads, are recommended for cold

weather use.

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To reduce the risk of injury, the operator

should wear proper protective apparel.

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Wear an approved safety

hard hat to protect your

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head. Chainsaw noise

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may damage your

hearing. Always wear

sound barriers (ear plugs

or ear mufflers) to protect your hearing.

Continual and regular users should have

their hearing checked regularly.

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Always stop the engine before putting a

chainsaw down or carrying it. Carrying a

chainsaw with the engine running is

extremely dangerous.

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Accidental acceleration of the engine

can cause the chain to rotate. During

operation, the powerhead muffler and

the material around it reach extremely

high temperatures. Avoid touching the

hot muffler, you could receive serious

burns.

Parts of the chainsaw; for illustrations

and definitions of the parts see the

chapter on “Main Parts of Saw”.

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Never modify a chainsaw in any way.

Only attachments and parts supplied by

STIHL or expressly approved by STIHL

for use with the specific STIHL saw

models are authorized. Although certain

unauthorized attachments are useable

with the STIHL powerhead, their use

may, in fact, be extremely dangerous.

%\ꢁKDQGꢄꢁWhen carrying your saw by

hand, the engine must be stopped and

the saw must be in the proper position.

The chain guard (scabbard) should be

over the chain and the guide bar, which

should point backwards. When carrying

your saw, the bar should be behind you.

Grip the front handle and place the

muffler away from the body.

%\ꢁYHKLFOHꢄꢁWhen transporting in a

vehicle, keep chain and bar covered with

the chain guard. Properly secure your

saw to prevent turnover, fuel spillage

and damage to the saw.

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and thereafter at regular intervals (when-

ever the saw is shut off). If the chain

becomes loose while cutting, shut off the

engine and then tighten. Never try to

tighten the chain while the engine is

running!

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Take off the chain guard and inspect for

safety in operation. For assembly, follow

the procedure described in the chapter

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Fuel your chainsaw in well-ventilated

areas, outdoors only. Always shut off the

engine and allow it to cool before refue-

ling. Gasoline vapor pressure may build

up inside the gas tank of a two cycle

engine depending on the fuel used, the

weather conditions, and the venting

system of the tank. In order to reduce

the risk of burns or other personal injury

from escaping gas vapor and fumes,

remove the fuel filler cap on the STIHL

product carefully so as to allow any

pressure build-up in the tank to release

slowly. Never remove fuel filler cap while

engine is running.

“Mounting the Bar and Chain” of your

Owner’s Manual.

STIHL Oilomatic chain, guide bar and

sprocket must match each other in

gauge and pitch.

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Your STIHL chainsaw uses an oil-gaso-

line mixture for fuel (see chapter “Fuel”

of your Owner’s Manual).

Before replacing any bar and chain,

see the sections on “Specifications”,

"Kickback" and the "ANSI B 175.1-1991

ꢀ

chainsaw kickback standard" in this

manual.

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Gasoline is an extremely flammable fuel.

If spilled or ignited by a spark or other

ignition source, it can cause fire and

serious burn injury or property damage.

Use extreme caution when handling

gasoline or fuel mix.

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Select bare ground for fueling and move

at least 10 feet (3 m) from fueling spot

before starting the engine. Wipe off any

spilled fuel before starting your saw, and

check for leakage.

Proper tension of the chain is extremely

important. In order to avoid improper

setting, the tensioning procedure must

be followed as described in your manual.

Always make sure the hexagonal nut(s)

for the sprocket cover is (are) tightened

securely after tensioning the chain.

Do not smoke or bring

any fire or flame near the

fuel or the chainsaw.

Note that combustible

fuel vapors may be vented

from the fuel system.

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Never start the saw with the sprocket

cover loose. Check chain tension once

more after having tightened the nut(s)

Check for fuel leakage while refueling

and during operation. If fuel or oil leakage

is found, do not start or run the engine

until leak is fixed and spilled fuel has

been wiped away. Take care not to get

fuel on your clothing. If this happens,

change your clothing immediately.

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Unit vibrations can cause an improperly

tightened fuel filler cap to loosen or come

off and spill quantities of fuel. In order to

reduce the risk of fuel spillage and fire,

tighten fuel filler cap by hand with as

much force as possible.

The screwdriver end of

the STIHL combination

wrench or other similar

tool can be used as an aid

in tightening slotted fuel

filler caps.

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The chain brake must be engaged when

starting the saw.

With the ILUVWꢁPHWKRGꢇꢁthe chainsaw is

started on the ground. Make sure the

chain brake is engaged (see “Chain

Brake” chapter in your Owner’s Manual)

and place the chainsaw on firm ground

or other solid surface in an open area.

Maintain good balance and secure

footing.

The VHFRQGꢁrecommended PHWKRGꢁfor

starting your chainsaw allows you to start

the saw without placing it on the

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Your chainsaw is a one-person saw.

Do not allow other persons to be near

the running chainsaw. Start and operate

your saw without assistance. For specific

starting instructions, see the appropriate

section of the Owner’s Manual. Proper

starting methods reduce the risk of injury.

Do not drop start. This method is very

dangerous because you may lose control

of the saw.

ground. Make sure the chain brake is

engaged, grip the front handle of the

chainsaw firmly with your left hand.

Keep your arm on the front handle in a

locked (straight) position. Hold the rear

handle of the saw tightly between your

legs just above the knees. Maintain good

balance and secure footing. Pull the

starting grip slowly with your right hand

until you feel a definite resistance and then

give it a brisk, strong pull.

Grip the front handlebar of the saw firmly

with your left hand and press down.

For saws with a rear handle level with

the ground, put the toe of your right foot

into the rear handle and press down.

With your right hand pull out the starter

grip slowly until you feel a definite

resistance and then give it a brisk,

strong pull.

There are two recommended methods

for starting your chainsaw.

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To reduce the risk of serious or fatal

injury from breathing toxic fumes, never

run the chainsaw indoors or in poorly

ventilated locations. Ensure proper venti-

lation when working in trenches or other

confined areas.

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Be sure that the guide bar and chain are

clear of you and all other obstructions

and objects, including the ground. When

the engine is started, the engine speed

with the starting throttle lock engaged

will be fast enough for the clutch to

engage the sprocket and, if the chain-

brake is not activated, turn the chain.

If the upper quadrant of the tip of the bar

touches any object, it may cause kick-

back to occur (see section on reactive

forces). To reduce this risk, always

To reduce the risk of personal injury from

loss of control or contact with the

running chain, do not use a saw with

incorrect idle adjustment. At correct idle

speed, the chain should not rotate. For

directions to adjust idle speed, see the

appropriate section of your Owner’s

Manual. If you cannot set the correct idle

speed, have your STIHL dealer check

your saw and make proper adjustments

or repairs.

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Use of this product (including sharpen-

ing the saw chain) can generate dust,

mists and fumes containing chemicals

known to cause respiratory disease, can-

cer, birth defects, or other reproductive

harm. If you are unfamiliar with the risks

associated with the particular dust, mist

or fume at issue, consult your employer,

governmental agencies such as OSHA

and NIOSH and other sources on hazar-

dous materials. California and some

other authorities, for instance, have pub-

lished lists of substances known to cause

cancer, reproductive toxicity, etc.

engage the chain brake before starting.

Never attempt to start the chainsaw

when the guide bar is in a cut or kerf.

After adjusting a chain, start the saw, let

the engine run for a while, then switch

engine off and recheck chain tension.

Proper chain tension is very important at

all times.

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When you pull the starter grip, do not

wrap the starting rope around your

hands. Do not allow the grip to snap

back, but guide the starter rope slowly

back to permit the rope to rewind

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Operate the chainsaw under good

visibility and daylight conditions only.

Control dust (such as sawdust), mists

properly. Failure to follow this procedure

may result in injury to hand or fingers

and may damage the starter mechanism.

(such as oli mist from chain lubrication)

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Your chainsaw produces

and fumes at the source where possible.

In this regard use good work practices

and follow the recommendations of

OSHA / NIOSH and occupational and

trade associations. When the inhalation

of toxic dust, mists and fumes cannot be

poisonous exhaust fumes

as soon as the combusti-

ble engine is running.

These gases (e.g. carbon

monoxide) may be colorless and odor-

less.

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eliminated, the operator and any by-

standers should always wear a respirator

approved by NIOSH / MSHA for the type

substance at issue.

hot. Don’t work alone. Keep within calling

distance of others in case help is

needed.

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Avoid stumbling on obstacles such as

stumps, roots or rocks and watch out for

holes or ditches. Clear the area where

you are working. Be extremely cautious

when working on slopes or uneven

ground. There is increased danger of

slipping on freshly debarked logs.

Your chainsaw is equipped with a chain

catcher. It is designed to reduce the risk

of personal injury in the event of a thrown

or broken chain. From time to time the

catcher may be damaged or removed.

To reduce the risk of personal injury,

do not operate a chainsaw with a

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Breathing asbestos dust is dangerous

and can cause severe or fatal injury, re-

spiratory illness or cancer. The use and

disposal of asbestos containing products

have been strictly regulated by OSHA

and the Environmental Protection Agen-

cy. Do not cut or disturb asbestos, asbe-

stos containing products (e.g. asbestos

containing drywall or other construction

products), or products such as pipes

which are wrapped or covered with asbe-

stos insulation. If you have any reason

to believe that you might be cutting asbe-

stos, immediately contact your employer

or a local OSHA representative.

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damaged or missing catcher.

To reduce the risk

of serious or fatal

injury to the opera-

tor or bystanders,

never use the saw

with one hand.

Inspect buffers periodically. Replace

damaged, broken or excessively worn

buffers immediately, since they may

result in loss of control of the saw.

You cannot control reactive forces and

you may lose control of the saw, which

can result in the skating or bouncing of

the bar and chain along the limb or log.

A “sponginess” in the feel of the saw,

increased vibration or increased

“bottoming” during normal operation

may indicate damage, breakage or

excessive wear. Buffers should always

be replaced in sets. If you have any

questions as to whether the buffers

should be replaced, consult your STIHL

servicing dealer.

Even for those compact saws designed

for use in confined spaces, one-handed

operation is dangerous because the

operator may lose control.

The muffler and other parts of the engine

(e.g. fins of the cylinder, spark plug)

become hot during operation and remain

hot for a while after stopping the engine.

To reduce risk of burns do not touch the

muffler and other parts while they are

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Take extreme care in wet and freezing

weather (rain, snow, ice). Put off the

work when the weather is windy, stormy

or rainfall is heavy.

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Grip: Always hold the saw firmly with

both hands when the engine is running.

Place your left hand on front handle bar

and your right hand on rear handle and

throttle trigger. Left-handers should

follow these instructions too.

:DUQLQJꢀ

Never touch a chain with your hand or

any part of your body when the engine is

running, even when the chain is not

rotating. The chain continues to rotate

for a short period after the throttle trigger

is released.

Wrap your fingers tightly around the

handles, keeping the handles cradled

between your thumb and forefinger.

With your hands in this position, you can

best oppose and absorb the push, pull

and kickback forces of your saw without

losing control (see section on reactive

forces). Make sure your chainsaw

ꢀ

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Do not cut any material other than wood

Never work on a ladder, or on any other

insecure support. Never use the saw

above shoulder height.

or wooden objects.

Use your chainsaw for cutting only.

It is not designed for prying or shoveling

away limbs, roots or other objects.

When sawing, make sure that the saw

chain does not touch any foreign

materials such as rocks, fences, nails

and the like.

ꢀ

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handles and grip are in good condition

and free of moisture, pitch, oil or grease.

Never work in a tree unless you have

received specific, professional training

for such work, are properly secured

(

such as tackle and harness system or a

ꢀ

Such objects may be flung off, damage

the saw chain or cause the saw to

kickback.

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lift bucket), have both hands free for

operating the chainsaw in a cramped

environment and have taken proper

precautions to avoid injury from falling

limbs or branches.

Do not operate your chainsaw with the

starting throttle lock engaged. Cutting

with the starting throttle lock engaged

does not permit the operator proper

control of the saw or chain speed.

ꢀ

:DUQLQJꢀ

In order to keep control of your saw,

always maintain a firm foothold.

ꢊꢊ

Position the chainsaw in such a way that

your body is clear of the cutting attach-

ment whenever the engine is running.

Stand to the left of cut while bucking.

powerful force used to cut wood can be

reversed (and work against the opera-

tor). If the rotating chain is suddenly

stopped by contact with any solid object

like a log or branch or is pinched, the

reactive forces may occur instantly.

These reactive forces may result in loss

of control which may, in turn, cause

serious or fatal injury. An understanding

of the causes of these reactive forces

may helpyou avoid loss of control.

Don’t put pressure on the saw when

reaching the end of a cut. The pressure

may cause the bar and rotating chain to

pop out of the cut or kerf, go out of

control and strike the operator or some

other object. If the rotating chain strikes

some other object, a reactive force may

cause the moving chain to strike the

operator.

The reaction of the cutting force of the

chain causes a rotational force on the

chainsaw in the direction opposite to the

chain movement. This may fling the bar

up and back in an uncontrolled arc

mainly in the plane of the bar. Under

some cutting circumstances the bar

moves towards the operator, who may

suffer severe or fatal injury.

The most common reactive forces are

– kickback,

–

pushback,

pull-in.

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Kickback may occur when

the moving saw chain

near the upper quadrant of

the bar nose contacts a

solid object or is pinched.

Reactives forces may occur any time the

chain is rotating. Reactives forces can

be dangerous! In any chainsaw, the

Kickback may occur when the nose of

the guide bar is pinched unexpectedly,

unintentionally contacts solid material in

the wood or is incorrectly used to begin

a plunge or boring cut.

ꢊꢌ

It may also occur during limbing.

a) saws with a displacement of less than angles that may occur in real life cutting

The greater the force of the kickback

reaction, the more difficult it becomes for

the operator to control the saw. Many

factors influence the occurrence and

force of the kickback reaction. These

include chain speed, the speed at which

the bar and chain contact the object, the

angle of contact, the condition of the

chain and other factors.

3.8 cubic inches

situations. Compliance with § 5.12 of

ANSI B 175.1-1991 does not automatic-

ally mean that in a real life kickback the

bar and chain will rotate at most 45°.

–

must, in their original condition,

meet a 45° computer derived

kickback angle when equipped with

certain cutting attachments.

and must be equipped with at least

two devices to reduce the risk of

kickback injury, such as a chain

brake, low kickback chain, reduced

kickback bar, etc.

–

ꢀ

:DUQLQJꢀ

In order for powerheads below 3.8 cubic

inch displacement to comply with the

computed kickback angle requirements

of § 5.12 of ANSI B 175.1-1991 use only

the following cutting attachments:

The type of bar and saw chain you use

is an important factor in the occurrence

and force of the kickback reaction.

b) saws with a displacement of 3.8 cubic

inches and above

–

bar and chain combinations listed as

complying in the “Specifications”

section of the Owner’s Manual or

other replacement bar and chain

combinations marked in accordance

with the standard for use on the

powerhead or

Some STIHL bar and chain types are

designed to reduce kickback forces.

STIHL recommends the use of reduced

kickback bars and low kickback chains.

–

must be equipped with at least one

device designed to reduce the risk

of kickback injury such as a chain

brake, low kickback chain, reduced

kickback bar, etc.

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The computer derived angles for saws

below 3.8 cubic inch displacement are

measured by applying a computer

program to test results from a kickback

test machine.

–

replacement chain designated

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“low kickback saw chain’’.

See the section on "Low kickback saw

chain and reduced kickback bars"

Section 5.12 of ANSI standard B 175.1–

1991, sets certain performance and

design criteria related to chainsaw

kickback.

To comply with section 5.12 of ANSI B

ꢀ

:DUQLQJꢀ

175.1-1991:

The computer derived angles of § 5.12 of

ANSI B 175.1-1991 may bear no rela-

tionship to actual kickback bar rotation

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Never operate your chainsaw without a

front hand guard. In a kickback situation

this guard helps protect your left hand or

other parts of your body. In addition,

removal of the hand guard on a saw

equipped with a chain brake will deactivate

the chain brake.

STIHL recommends the use of the STIHL

Quickstop chain brake on your power-

head with green labeled reduced kick-

back bars and low kickback chains.

ꢀ

:DUQLQJꢀ

To reduce the risk of injury, stop using

the saw immediately if the chain brake

does not function properly. Take the saw

to your local STIHL Service Centre! Do

not use the saw until the problem has

been rectified (see the section “Chain

Brake”).

ꢀ

:DUQLQJꢀ

No Quickstop or other chain brake

device prevents kickback. These devices

are designed to reduce the risk of

kickback injury, if activated, in certain

kickback situations. In order for the

Quickstop to reduce the risk of kickback

injury, it must be properly maintained

and in good working order. See the

chapter entitled “Chain Brake” and

“Maintenance, Repair and Storing” of

your Owner’s Manual. In addition, there

must be enough distance between the

bar and the operator to ensure that the

Quickstop has sufficient time to activate

and stop the chain before potential

contact with the operator.

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When a kickback occurs, the guide bar

may rotate around the front handle. If the

cutting position is such that the operator’s

left hand is gripping the front handle

behind the hand guard, and if the left

hand rotates around the front handle and

makes a sufficiently forceful contact with

the front hand guard, which is the Quick-

stop activating lever, this contact will

activate the Quickstop. The chain brake

on most new model STIHL chainsaws

can also be activated by inertia. See the

chapter entitled “Chain Brake” of your

Owner’s Manual.

STIHL has developed a chain stopping

system designed to reduce the risk of

injury in certain kickback situations.

It is called a Quickstop chain brake.

The Quickstop is available as standard

equipment on your STIHL chainsaw and

is available for installation on most older

STIHL saws. Ask your dealer to retrofit

your older model saw with a chain brake.

ꢊꢂ

reduce the risk of kickback injury. Other

chains are designed to obtain higher cut-

ting efficiency or sharpening ease but

may result in higher kickback tendency.

Please ask your STlHL dealer to properly

match your powerhead with the appro-

priate bar/chain combinations to reduce

the risk of kickback injury. Green labeled

bars and chains are recommended for all

powerheads. See your “STIHL Bar and

Chain Information” leaflet for details.

ꢀ

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An improperly maintained chain brake

may increase the time needed to stop

the chain after activation, or may not

activate at all.

STIHL has developed a color code

system to help you identify the STIHL

reduced kickback bars and low kick-

back chains. Cutting attachments with

green warning decals or green labels on

the packaging are designed to reduce

the risk of kickback injury. The matching

of green decaled powerheads under 3.8

cubic inch displacement with green

labeled bars and green labeled chains

gives compliance with the computed

kickback angle requirements of ANSI B

ꢀ

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Never run the chainsaw above idle

speed for more than 3 seconds when

the chain brake is engaged or the chain

is pinched or otherwise caught in the cut.

Clutch slippage can cause excessive

heat, leading to severe damage of the

motor housing, clutch and oiler compo-

nent and may interfere with the operation

of the chain brake. If clutch slippage in

excess of 3 seconds has occured, allow

the motor housing to cool before pro-

ceeding and check the operation of your

chain brake as described in the chapter

entitled “Chain Brake”. Also make sure

that the chain is not turning at idle speed

ꢀ

:DUQLQJꢀ

Use of other, non-listed bar/chain combi-

nations may increase kickback forces

and increase the risk of kickback injury.

New bar/chain combinations may be

developed after publication of this litera-

ture, which will, in combination with

certain powerheads, comply with § 5.12

of ANSI B 175.1-1991. Check with your

STIHL dealer for such combinations.

175.1-1991 when the products are in

their original condition. Products with

yellow decals or labels are for users with

extraordinary cutting needs and

experience and specialized training for

dealing with kickback.

ꢀ

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Reduced kickback bars and low kickback

chains do not prevent kickback, but they

are designed to reduce the risk of kick-

back injury. They are available from your

STIHL dealer.

(see above “Important Adjustments”).

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STIHL offers a variety of bars and

chains. STIHL reduced kickback bars

and low kickback chains are designed to

:DUQLQJꢀ

Even if your saw is equipped with a

Quickstop, a reduced kickback bar

and/or low kickback chain, this does not

eliminate the risk of injury by kickback.

Therefore, always observe all safety

precautions to avoid kickback situations.

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kickback energy. Improper lowering or

sharpening of the depth gauges or

shaping of the cutters may increase the

chance and the potential energy of a

kickback. Always cut with a properly

sharpened chain.

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Some types of saw chain have specially

designed components to reduce the

force of nose contact kickback. STIHL

has developed low kickback chain for

your powerhead.

The best protection from personal injury

that may result from kickback is to avoid

kickback situations:

1. Hold the chainsaw firmly with both

hands and maintain a secure grip.

2. Be aware of the location of the guide

bar nose at all times.

3. Never let the nose of the guide bar

contact any object. Do not cut limbs

with the nose of the guide bar.

Be especially careful when cutting

small, tough limbs, small size brush

and saplings which may easily catch

the chain.

“Low kickback saw chain” is a chain

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which has met the kickback performance

requirements of § 5.12.2.4 of

ANSI B 175.1-1991 (Safety Require-

ments for Gasoline-Powered Chain-

Saws) when tested on a selected repre-

sentative sample of chainsaws below

STIHL green labeled reduced kickback

bars are designed to reduce the risk of

kickback injury when used with STIHL

green labeled low kickback chains.

3.8 cubic inch displacement specified in

ꢀ

ANSI B 175.1-1991.

:DUQLQJꢀꢁ

When used with other, more aggressive

chains, these bars may be less effective

in reducing kickback, and may result in

higher kickback forces.

4 Don’t overreach.

5. Don’t cut above shoulder height.

6. Begin cutting and continue at full

throttle.

7. Cut only one log at a time.

8. Use extreme caution when reentering

a previous cut.

9. Do not attempt to plunge cut if you

are not experienced with these

cutting techniques.

10. Be alert for shifting of the log or other

forces that may cause the cut to

close and pinch the chain.

11. Maintain saw chain properly. Cut with

a correctly sharpened, properly

tensioned chain at all times.

12. Stand to the side of the cutting path

of the chainsaw.

ꢀ

:DUQLQJꢀ

There are potential powerhead and bar

combinations with which low kickback

saw chains can be used which have not

been specifically certified to comply with

the 45° computer derived kickback angle

of § 5.12 of ANSI B 175.1-1991.

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ꢀ

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Do not mount a bow guide on any

Some low kickback chains have not

been tested with all powerhead and bar

combinations.

STIHL chainsaw.

Any chainsaw equipped with a bow

guide is potentially very dangerous.

The risk of kickback is increased with a

bow guide because of the increased

kickback contact area. Low kickback

chain will not significantly reduce the risk

of kickback injury when used on a bow

guide.

ꢀ

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A dull or improperly sharpened chain

may reduce or negate the effects of the

design features intended to reduce

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Felling is cutting down a tree.

Before felling a tree, consider carefully all

conditions which may affect the direction

of fall, including:

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The intended direction of the fall.

The natural lean of the tree.

Pull-in occurs when the chain on the

bottom of the bar is suddenly stopped

when it is pinched, caught or encounters

a foreign object in the wood. The reaction

of the chain pulls the saw forward and

may cause the operator to lose control.

Pushback occurs when the chain on the

top of the bar is suddenly stopped when

it is pinched, caught or encounters a

foreign object in the wood. The reaction

of the chain drives the saw straight back

toward the operator and may cause loss

of saw control. Pushback frequently

occurs when the top of the bar is used for

cutting.

Any unusually heavy limb structure.

Surrounding trees and obstacles.

The wind direction and speed.

Pull-in frequently occurs when the

bumper spike of the saw is not held

securely against the tree or limb and

when the chain is not rotating at full

speed before it contacts the wood.

ꢀ

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Always observe the general condition of

the tree. Inexperienced users should

never attempt to cut trees which are

decayed or rotted inside or which are

leaning or otherwise under tension.

Be alert to forces or situations that

may cause material to pinch the top

of the chain.

ꢀ

:DUQLQJꢀꢁ

Use extreme caution when cutting small

size brush and saplings which may easily

catch the chain and pull you off balance.

2. Do not cut more than one log at a time. There is an increased risk that such trees

could snap or split while being cut and

Do not twist the saw when

withdrawing the bar from a plunge

cut or underbuck cut because the

chain can pinch.

cause serious or fatal injury to the

operator or bystanders. Also look for

broken or dead branches which could

vibrate loose and fall on the operator.

When felling on a slope, the operator

should stand on the uphill side if

possible.

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Always start a cut with the chain

rotating at full speed and the bumper

spike in contact with the wood.

Pull-in may also be prevented by using

wedges to open the kerf or cut.

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When felling, maintain a distance of at

least 2 /

tree lengths from the nearest

person.

When felling in the vicinity of roads,

railways and power lines, etc., take extra

precautions. Inform the police, utility

company or railway authority before

beginning to cut.

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First clear the tree base and work area

from interfering limbs and brush and

clean its lower portion with an ax.

If the tree has large buttress roots, cut

into the largest buttress vertically first

(horizontally next) and remove the

resulting piece.

The noise of your engine may drown any

warning call.

ꢀ

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Then, establish two paths of escape (%)

and remove all obstacles. These paths

should be generally opposite to the plan-

ned direction of the fall of the tree ($)

and about at a 45° angle. Place all

There are a number of factors that may

affect and change the intended direction

of fall, e.g. wind, lean of tree, sloping

ground, one-sided limb structure, wood

structure, decay, snow load, etc. To re-

duce the risk of severe or fatal injury to

yourself or others, look for these condi-

tions prior to beginning the cut, and be

alert for a change in direction during fall.

tools and equipment a safe distance away

from the tree, but not on the escape paths.

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When making the felling notch, use the

gunning sight on the shroud and housing

to check the required direction of fall:

$ꢁ felling notch - determines the

$= felling notch - determines the

direction of the fall

For a conventional cut:

For an open-face cut:

Position the saw so that the

gunning sight points exactly in the

direction you want the tree to fall.

•

Properly place felling notch

perpendicular to the Iine of fall,

close to the ground

Properly place felling notch

perpendicular to the Iine of falI,

close to the ground

•

Cut down at app. 45-degree angle

to a depth of about 1/5 to 1/4 of the

trunk diameter

Cut down at app. 50-degree angle

to a depth of app.1/5 to 1/4 of the

trunk diameter

•

Make second cut horizontal

Remove resulting 45-degree piece

Make second cut from below at

app. 40 degree angle

Remove resulting 90-degree piece

•

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Conventional and open-face technique:

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Helps control the falling tree

•

Do not cut through the hinge -

•

you could lose control of the

direction of the fall

For medium sized or larger trees

make cuts at both sides of the trunk,

at same height as subsequent

felling cut.

Cut to no more than width of guide

bar.

Begin 1 to 2 inches higher than

center of felling notch

Cut horizontalIy towards the felling

•

notch

Leave approx.¹/10 of diameter uncut.

ꢀ

:DUQLQJꢀꢁ

In order to reduce the risk of personal

injury, never stand directly behind the

tree when it is about to fall, since part of

the trunk may split and come back

towards the operator (barber-chairing),

or the tree may jump backwards off the

stump. Always keep to the side of the

falling tree. When the tree starts to fall,

withdraw the bar, shut off the engine and

walk away on the preplanned escape

path. Watch out for falling limbs.

This is the hinge

Do not cut through the hinge –

you could lose control of the

direction of the fall

This is especially important in soft

wood in summer - it helps prevent

sapwood splintering when the tree

falls.

Drive wedges into the felling cut where

necessary to control the fall.

ꢀ

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If the tip of the bar contacts a wedge,

it may cause kickback. Wedges should

be of wood or plastic – never steel,

which can damage the chain.

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Avoid repositioning the saw more than

necessary. When repositioning for the

next cut, keep the guide bar fully engaged

in the kerf to keep the felling cut straight.

If the saw begins to pinch, insert a

wedge to open the cut. On the last cut,

do not cut the hinge.

ꢀ

DUQLQJꢀ

ꢀ

Be extremely careful with partially fallen

trees which are poorly supported.

When the tree hangs or for some other

reason does not fall completely, set the

saw aside and pull the tree down with a

cable winch, block and tackle or tractor.

If you try to cut it down with your saw,

you may be injured.

:DUQLQJꢀꢁ

Felling a tree that has a diameter greater

than the length of the guide bar requires

use of either the sectioning felling cut or

plunge-cut method. These methods are

extremely dangerous because they

involve the use of the nose of the guide

bar and can result in kickback. Only

properly trained professionals should

attempt these techniques.

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Timber having a diameter more than

twice the length of the guide bar requires

the use of the plunge-cut method before

making the felling cut.

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Engage the bumper spikes of the chain-

saw directly behind the location of the

intended hinge and pivot the saw around

this point only as far as the hinge. The

bumper spike rolls against the trunk.

For the sectioning method make the first

part of the felling cut with the guide bar

fanning in toward the hinge. Then, using

the bumper spike as a pivot, reposition

the saw for the next cut.

ꢌꢊ

If you are inexperienced with a chainsaw,

plunge-cutting should not be attempted.

Seek the help of a professional.

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Limbing is removing the branches from

a fallen tree.

ꢀ

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First, cut a large, wide felling notch.

Make a plunge cut in the center of the

notch.

There is an extreme danger of kickback

during the limbing operation. Do not

work with the nose of the bar. Be extremely

cautious and avoid contacting the log or

other limbs with the nose of the guide bar.

The plunge cut is made with the guide

bar nose. Begin the plunge cut by

applying the lower portion of the guide

bar nose to the tree at an angle. Cut until

the depth of the kerf is about the same as

the width of the guide bar. Next, align

the saw in the direction in which the

recess is to be cut.

Do not stand on a log while limbing it –

you may slip or the log may roll.

Start limbing by leaving the lower limbs to

support the log off the ground. When

underbucking freely hanging limbs,

a pinch may result or the limb may fall,

causing loss of control. If a pinch occurs,

stop the engine and remove the saw,

by lifting the limb.

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Bucking is cutting a log into sections.

ꢀ

With the saw at full throttle, insert the

guide bar in the trunk.

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1. When bucking, do not stand on the

log. Make sure the log will not roll

downhill. If on a slope, stand on the

uphill side of the log.

Enlarge the plunge cut as shown in

illustration.

ꢀ

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Be extremely cautious when cutting

limbs or logs under tension (spring poles).

The limbs or logs could spring back

toward the operator and cause loss of

control of the saw and severe or fatal

injury to the operator.

Watch out for rolling logs.

ꢀ

:DUQLQJꢀ

There is an extreme danger of kickback

at this point. Extra caution must be taken

to maintain control of the saw. To make

the felling cut, follow the sectioning

method described previously.

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Never operate a chainsaw that is

damaged, improperly adjusted or not

completely or securely assembled.

Follow the maintenance and repair

instructions in the appropriate section of

your Owner’s Manual, especially those

in the chapters “Mounting the Bar and

Chain”, “Maintaining and Sharpening”

and “Chain Brake”.

Cut only one log at a time.

5. Logs under strain: Risk of pinching!

Always start relieving cut (ꢊ) at

compression side ($).

Shattered wood should be cut very

carefully. Sharp slivers of wood

may be caught and flung in the

direction of the operator of the saw.

Then make bucking cut (ꢌ) at

tension side (%).

If the saw pinches, stop the engine

and remove it from the log.

ꢀ

:DUQLQJꢀ

Use only STIHL replacement parts for

maintenance and repair. Use of parts

manufactured by others may cause

serious or fatal injury.

When cutting small logs, place log

through “V” - shaped supports on

top of a sawhorse. Never permit

another person to hold the log.

Never hold the log with your leg or

foot.

6. Only properly trained professionals

should work in an area where the

logs, limbs and roots are tangled.

Working in blowdown areas is

extremely hazardous.

ꢀ

DUQLQJꢀ

Always stop the engine and ensure that

the chain is stopped before making any

adjustments, maintenance or repair work,

Drag the logs into a clear area before

cutting. Pull out exposed and cleared

logs first.

ꢌꢏ

changing the saw chain or cleaning the

saw. Do not attempt any maintenance or

repair work not described in your

Owner’s Manual. Have such work perfor-

med at your STIHL service shop only.

result. If your muffler was equipped with

a spark-arresting screen to reduce the

risk of fire (e. g. in the USA, Canada and

Australia), never operate your saw if the

screen is missing or damaged. Remem-

ber that the risk of forest fires is greater

in hot or dry weather.

Keep the chain, bar and sprocket clean;

replace worn sprockets or chains.

Keep the chain sharp.

You can spot a dull chain when easy-to-

cut wood becomes hard to cut and burn

marks appear on the wood.

Keep the chain at proper tension. Tighten

all nuts, bolts and screws except the

carburetor adjustment screws after each

use.

For the proper and effective operation of

the chain brake the brake band and

clutch drum must be kept free of dirt,

grease and other foreign matter which

may reduce friction of the band on the

drum.

ꢀ

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Never test the ignition system with

For these reasons, each STIHL chain-

saw should be returned to trained

personnel such as your STIHL servicing

dealer for periodic inspection and

servicing of the brake system according

to the following schedule:

Heavy usage - every three months,

Moderate usage - twice a year,

Occasional usage - annually.

ignition wire terminal removed from spark

plug or with unseated spark plug, since

uncontained sparking may cause a fire.

ꢀ

:DUQLQJꢀ

To reduce the risk of fire and burn injury,

use only spark plugs authorized by

STIHL. Always press spark plug boot

snugly onto spark plug terminal of the

proper size. (Note: If terminal has

detachable SAE adapter nut, it must be

attached.) A loose connection between

spark plug terminal and ignition wire

connector in the boot may create arcing

that could ignite combustible fumes and

cause a fire. Keep spark plug clean, and

make sure ignition lead is in good

condition.

The chainsaw should also be returned

immediately for maintenance whenever

the brake system cannot be thoroughly

cleaned or there is a change in its

operating characteristics.

ꢀ

:DUQLQJꢀꢁ

In order for the chain brake on your

STIHL chainsaw to properly perform its

function of reducing the risk of kickback

and other injuries, it must be properly

maintained. Like an automobile brake,

a chainsaw chain brake incurs wear

each time it is engaged.

For any maintenance please refer to the

maintenance chart DQGꢁWRꢁWKHꢁZDUUDQW\

VWDWHPHQWnear the end of this manual.

ꢀ

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The amount of wear will vary depending

upon usage, conditions under which the

saw is used and other factors. Excessive

wear will reduce the effectiveness of the

chain brake and can render it inoperable.

Additionally, the daily maintenance

schedule for your chainsaw set forth in

your STIHL Owner’s Manual should be

strictly followed.

Do not operate your chainsaw if the

muffler is damaged, missing or modified.

An improperly maintained muffler will

increase the risk of fire and hearing loss.

Never touch a hot muffler or burn will

Store chainsaw in a dry place and away

from children. Before storing for longer

than a few days, always empty the fuel

tank (see chapter "Storing the Machine"

in this manual).

ꢌꢂ

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WKHꢃ%DUꢃDQGꢃ&KDLQ

You can run chains of different pitches

on this chainsaw - depending on the

chain sprocket (see "Specifications")

'LVHQJDJHꢃWKHꢃFKDLQꢃEUDNHꢅ

Fit the guide bar over the studs ꢀꢇꢂ-

cutting edges on top of bar must

point to right -

and engage the peg of the

tensioner slide in locating hole ꢀꢈꢂꢃ-

place the chain over sprocket ꢀꢉꢂꢃat

the same time -

•

Pull hand guard ꢀꢆꢂtoward the front

handle.

Wear work gloves to protect hands

Fit the chain - start at the bar nose.

•

The chain pitch must match the guide

bar. The drive link gauge must match

the guide bar groove width.

•

Unscrew nuts and take off cover

•

Turn tensioning screw ꢀꢁꢂꢃ

counterclockwise until the peg of

the tensioner slide ꢀꢄꢂꢃbutts against

left end of housing slot.

ꢊꢄꢉ

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Retensioning during cutting work:

Shut down the engine.

Wear work gloves to prevent

injuries.

•

Shut down the engine -

•

and then slacken the nuts.

Hold the bar nose up -

Chain must fit snugly against the

underside of the bar - and, with the

chain brake disengaged, it must still be

possible to pull the chain along the bar

by hand.

•

and use screwdriver to turn

tensioning screw ꢀꢁꢂꢃclockwise until

chain fits snugly against

the underside of the bar -

while still holding bar nose up,

tighten down the nuts ILUPO\ꢌ

Now turn tensioning screw ꢀꢋꢂ

clockwise until there is very little

chain sag on the underside of the

bar -

and the drive link tangs are located

in the bar groove.

If necessary, retension the chain.

•

A new chain has to be retensioned

more often than one that has been in

use for some time -

A new chain has to be retensioned

more often than one that has been in

use for some time -

check chain tension frequently -

see section "During Operation".

Check chain tension frequently -

see section "During Operation".

•

Refit the sprocket cover -

and screw on the nuts

only finger-tight.

•

Tensioning the chain -

see section

"Tensioning the Saw Chain"

ꢄꢉ

ꢊꢄꢉ

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)XHOLQJ

This engine is certified to operate on

unleaded gasoline and oil with the

mix ratio 50:1.

We recommend STIHL 50:1 two-stroke

engine oil since it is specially formulated

for use in STIHL engines.

Do not use BIA or TCW (two-stroke

water cooled) mix oils!

Your two-stroke engine requires a

mixture of brand-name gasoline and

quality two-stroke engine oil with the

FODVVLILFDWLRQꢃ7&ꢌ

Take care when handling gasoline.

Avoid direct contact with the skin and

avoid inhaling fuel vapour

Use regular branded unleaded gasoline

with a minimum octane rating of

(see “Safety Precautions”).

0 ROZ (U.S.A./Canada: pump octane

The canister should be kept tightly

closed in order to avoid any moisture

getting into the mixture.

min. 89!). If the octane number of the

regular grade gasoline in your area is

lower, use premium unleaded fuel.

Fuel with a lower octane rating may

result in preignition (causing “pinging”)

which is accompanied by an increase in

engine temperature. This, in turn,

increases the risk of piston seizure

and damage to the engine.

The fuel tank and the canister in which

fuel mix is stored should be cleaned

from time to time.

)XHOꢃPL[ꢃDJHVꢅ

Before fueling, clean the fuel filler cap

and the area around it to ensure that no

dirt falls into the tank.

Always thoroughly shake the mixture in

the canister before fueling your machine.

Only mix sufficient fuel for a few days

work, not to exceed 3 months of storage.

Store in approved safety fuel-canisters

only. When mixing, pour oil into the

canister first, and then add gasoline.

The chemical composition of the fuel is

also important. Some fuel additives not

only detrimentally affect elastomers

(carburetor diaphragms, oil seals, fuel

ꢀ

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lines etc.), but magnesium castings as

well. This could cause running problems

or even damage the engine. For this

reason it is essential that you use only

branded fuels!

In order to reduce the risk of burns or

other personal injury from escaping gas

vapor and fumes, remove the fuel filler

cap carefully so as to allow any pressure

build-up in the tank to release slowly.

Gaso-

line

Oil (STIHL 50:1 or

equivalent branded TC oils)

US gal.

US fl.oz

Use only STIHL two-stroke engine oil or

equivalent branded two-stroke air-

cooled engine oils with the classification

TC for mixing.

ꢀ

2.6

6.4

12.8

:DUQLQJ+

1/2

After fueling, tighten fuel cap DV

VHFXUHO\ꢃDVꢃSRVVLEOHby hand.

Use a suitable tool (e.g. screwdriver end

of combination wrench) to tighten

slotted fuel caps.

Dispose empty mixing-oil canisters only

at authorized disposal locations.

ꢊꢄꢉ

ꢄꢋ

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LOꢃ7DQN

For automatic and reliable lubrication of

the chain and guide bar:

VHꢃRQO\ꢃDꢃTXDOLW\ꢍꢃHQYLURQPHQWDOO\

FRPSDWLEOHꢃFKDLQꢃDQGꢃEDUꢃOXEULFDQWꢌ

7,ꢎ/ꢃFKDLQꢃOXEULFDQWꢃZLWKꢃQRQꢏIOLQJ

DGGLWLYHꢃRUꢃWKHꢃUDSLGO\ꢃELRGHJUDGDEOH

7,ꢎ/ꢃ%LRSOXVꢃLVꢃUHFRPPHQGHGꢌ

,PSRUWDQWꢅꢃBiological chain oil must be

resistant to aging (e.g. STIHL Bioplus)

since it will otherwise quickly turn to

resin. This results in hard deposits that

are difficult to remove, especially in the

area of the chain drive, clutch and chain.

It may even cause the oil pump to seize.

The service life of the chain and guide

bar depends on the quality of the

lubricant. It is therefore essential to use

only a specially formulated chain

lubricant.

Change the fuel pick up body every year.

Thoroughly clean the oil filler cap

and the area around it to ensure

that no dirt falls into the tank.

•

Before storing your machine for a long

period, drain and clean the fuel tank and

run engine until carburetor is dry.

If special chain lubricant is not available,

you may - in an emergency - use an HD

single grade or multigrade engine oil

with a viscosity that suits the prevailing

outside temperature.

Refill the chain oil tankꢃevery time

you refuel.

There must still be a small amount of oil

in the oil tank when the fuel tank is

empty.

If the oil tank is still partly full, the reason

may be a problem in the oil supply

system:

Check chain lubrication, clean the

oil passages, contact your STIHL dealer

for assistance if necessary.

ꢀ

DUQLQJ+

Medical studies have shown that

renewed contact with waste oil can

cause skin cancer. Avoid direct contact

with waste oil. If waste oil does get on

your skin, wash with soap and water.

RꢃQRWꢃXVHwaste oil for any purpose,

and dispose of it only at authorized

disposal locations.

ꢄꢐ

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KHꢃFKDLQꢃEUDNHꢃLVꢃDOVRꢃDFWLYDWHGꢃE\

WKHꢃLQHUWLDꢃRIꢃWKHꢃIURQWꢃKDQGꢃJXDUG

if the kickback force of the saw is high

enough:

The hand guard is accelerated toward

the bar nose - even if your left hand is

not behind the hand guard, e.g. during

felling cut.

The chain brake will operate only if the

hand guard has not been modified in

any way.

&KHFNꢃRSHUDWLRQꢃRIꢃFKDLQꢃEUDNH

Before starting work: Run engine at

idle speed, engage the chain brake

(push hand guard toward bar nose).

Accelerate up to full throttle for no more

than 3 seconds - the chain must not

rotate. The hand guard must be free of

dirt and move freely.

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5HOHDVLQJꢃWKHꢃFKDLQꢃEUDNH

in an emergency

when starting

at idling speed.

Pull the hand guard back toward

the front handle.

•

&KDLQꢃEUDNHꢃPDLQWHQDQFH

RWHꢅꢃAlways disengage chain brake

The chain is stopped and locked

when the hand guard is pushed

toward the bar nose by the left hand -

or when brake is activated by inertia

in certain kickback situations.

before accelerating engine and before

starting cutting work. The only exception

to this rule is when you check operation

of the chain brake. High revs with the

chain brake engaged (chain locked) will

quickly damage the powerhead and

chain drive (clutch, chain brake).

The chain brake is subject to normal

wear and tear. It must therefore be

checked and serviced regularly by

trained personnel (e.g. STIHL dealer) at

the following intervals:

•

Full-time professional

users:

Semi-professional

users:

Occasional

users:

every 3 months

every 6 months

every 12 months

ꢊꢄꢉ

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STOP

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"Warm Start" position:

Choke shutter is open -

throttle trigger is in starting-throttle

position

If you leave the Master Control lever

in the "Cold Start" position,

In the "Warm Start" position, continue

cranking after engine begins to fire.

As soon as the engine runs,

LPPHGLDWHO\blip the throttle trigger

so that the Master Control lever moves to

"Run" -

RIꢃWKHꢃ0DVWHUꢃ&RQWUROꢃOHYHU

To start the engine, move the lever to

"Cold Start" position ꢀꢁꢂꢃ-

do not use force.

If the Master Control lever is on

the combustion chamber will flood

and stall the engine.

idling position -

normal operating position ꢀꢆꢂ.

"Run"ꢃꢀꢆꢂ: Press down the throttle trigger

interlock - and move the Master Control

lever downward.

The Master Control lever must be in

"Warm Start" position ꢀꢄꢂꢃto start a warm

engine. Also select this position if engine

has been running but is still cold.

7RꢃVKXWꢃGRZQꢃWKHꢃHQJLQHꢅ

Move the Master Control lever upward

to "STOP" position ꢀꢇꢂ:

The stop contact engages the contact

spring - this cuts out the ignition system.

"Cold Start" position: Choke shutter is

closed - throttle trigger is in starting-

throttle position. A cold engine should

be started in this position.

As soon as engine begins to fire,

move the Master Control lever to

The Master Control lever should not be

forced to "Run" positionꢃꢀꢆꢂ-

it will move to "Run" as soon as the

"Warm Start" position ꢀꢄꢂ:

throttle trigger is activated.

Move the Master Control lever one

notch upward.

ꢆꢊ

ꢊꢄꢉ

6WDUWLQJꢃWKHꢃ6DZ

STOP

Press in the button

Observe safety precautions -

Place your saw on the ground -

make sure you have a firm footing -

check that chain is not touching any

objects or the ground -

bystanders must be well clear of

general work area of the saw -

•

see section "Safety Precautions".

Push hand guard forward ꢀꢁꢂ:

The chain is now locked -

Press throttle trigger interlock ꢀꢄꢂ

and set

Compression pressure is released

when the button is pressed in.

This helps reduce the effort

required to pull the starter rope.

Master Control lever to:

For this reason the botton should

be pressed in before each starting

attempt.

Hold the saw firmly on the ground

with your left hand on the front

handle - your left thumb should be

under the handle -

put your right foot into the rear

handle and press down.

•

For cold start N

For warm start Q

(even if engine has been running

but is still cold)

ꢊꢄꢉ

ꢆꢁ

STOP

Alternative method of starting:

Hold the rear handle tightly

between your legs, just above the

knees -

grip the front handle firmly with your

left hand -

Pull the starter grip slowly with your

right hand until you feel it engage -

then give the grip a brisk strong pull

and push down the front handle

at the same time -

do not pull out starter rope more

than 70 cm (about 28 in) -

it might otherwise break.

When engine begins to fire:

Move Master Control lever ꢀꢆꢂto Q

and continue cranking -

DVꢃVRRQꢃDVꢃHQJLQHꢃUXQVꢍ

LPPHGLDWHO\blip the throttle

trigger ꢀꢇꢂ-

•

your thumb should be under the

handle -

the Master Control lever ꢀꢆꢂꢃwill

move

Do not let the starter grip snap back -

guide it slowly into the housing

so that the starter rope can rewind

properly.

to "Run" position ꢀꢈꢂꢁ

and the engine settles down

to idling speed.

If engine is new, pull starter grip

several times to prime the fuel line.

As the chain brake is still engaged, the

engine must be returned to idling speed

immediately to avoid damage to the

engine and chain drive (clutch, chain

brake).

ꢆꢄ

ꢊꢄꢉ

Pull the hand guard back toward

the front handle:

the chain brake is now

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,IꢃHQJLQHꢃGRHVQ¶WꢃVWDUWꢅ

•

If you did not move the Master Control

lever to "Warm Start" Q

disengaged -

As soon as the engine runs:

your saw is ready for operation.

Observe safety precautions.

Always check operation of chain

lubrication before starting work.

Blip the throttle trigger

to disengage it from starting throttle

position -

Master Control lever will move

to normal operating position -

engine settles down to idling speed.

Disengage chain brake:

Pull hand guard toward front handle

as shown in illustration -

Open throttle slightly -

warm up engine for short period.

quickly enough after the engine began

to fire, the combustion chamber has

flooded.

•

6KXWꢃGRZQꢃHQJLQHꢅ

Turn knob or lever above rear

handle 90° counterclockwise.

Lift off the carburetor box cover

•

Move Master Control lever to

•

"Stop" E

•

vertically.

Always disengage the chain brake

before opening the throttle. Running the

engine at higher revs with the chain

brake engaged (saw chain at a

standstill) will quickly damage the engine

and chain drive (clutch, chain brake).

•

Change over to winter operation

if necessary -

see section "Winter Operation".

ꢊꢄꢉ

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2LOꢃ4XDQWLW\

RQWURO

Pull off the spark plug terminal -

Take out screw and remove the

shroud -

•

Unscrew and dry off the spark plug -

Set the Master Control lever to G

Crank the engine several times

with the starter

to clear the combustion chamber -

Refit the spark plug and connect

the spark plug terminal -

reassemble all other parts

Set Master Control lever

to "Warm Start" Q

•

even if engine is cold -

Now start the engine.

)

XHOꢃWDQNꢃUXQꢃXQWLOꢃGU\

DQGꢃWKHQꢃUHIXHOHG

The saw chain must always throw off

a small amount of oil.

Different quantities of oil are required for

different bar lengths, types of wood and

cutting techniques.

Pull starter rope several times until

•

fuel line is primed.

Never operate your saw without

•

chain lubrication. If the chain is run

dry the whole cutting attachment

will be irretrievably damaged within

a very short time.

Use the adjusting screw (ꢁ) to vary the

oil feed rate as required.

Most economic setting -

turn adjusting screw to "("

((matic position).

•

Always check chain lubrication and

oil level in tank before starting work.

To increase oil feed -

turn adjusting screw clockwise.

To reduce oil feed -

turn adjusting screw counter-

clockwise.

•

Every new chain has to be broken

in for about 2 to 3 minutes.

•

After breaking in chain,

•

check chain tension

and adjust if necessary -

see section

Your chain must always be wetted with

a film of lubricant.

"Checking chain tension".

ꢆꢇ

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A factory new machine should not be

run at high revs (full throttle off load)

for the first three tank fillings. This avoids

unnecessary high loads during the

break-in period.

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A new chain has to be retensioned more

often than one that has been in use for

some time.

Slacken off the chain if you have

retensioned it at operating

temperature during cutting work.

•

The chain contracts as it cools down.

If it is not slackened off, it could damage

the crankshaft and bearings.

&KDLQꢃFROGꢅ

As all moving parts have to bed in

during the break-in period, the frictional

resistances in the engine are greater

during this period. The engine develops

its maximum power after about 5 to 15

tank fillings.

Tension is correct when chain fits snugly

against the underside of the bar and can

still be pulled along the bar by hand.

Retension if necessary -

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IRUꢃDꢃORQJꢃSHULRGꢃꢏ

See chapter "Storing the Chain Saw".

see section "Tensioning the Saw Chain".

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RꢃQRWꢃPDNHꢃWKHꢃPL[WXUHꢃOHDQHUꢃWR

The chain stretches and begins to sag.

The drive links must not come out of the

bar groove - the chain may otherwise

jump off the bar.

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SRZHUꢃꢏꢃWKLVꢃFRXOGꢃGDPDJHꢃWKHꢃHQJLQH

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Retension the chain -

see section "Tensioning the Saw Chain".

,PSRUWDQWꢅꢃAlways disengage the chain

brake before opening the

throttle. Running the engine at higher

revs with the chain brake engaged (saw

chain at a standstill) will quickly damage

the engine and chain drive (clutch, chain

brake).

Always slacken off the chain after

finishing work.

The chain contracts as it cools down.

If it is not slackened off, it can damage

the crankshaft and bearings.

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RIꢃIXOOꢏWKURWWOHꢃRSHUDWLRQ

Allow engine to run for a short while

at idling speed so that engine heat can

be dissipated by flow of cooling air.

This protects engine-mounted compo-

nents (ignition, carburetor) from thermal

overload.

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The air filter system can be adapted to

suit different operating conditions by

simply installing a choice of filters.

)DEULFꢃILOWHUꢃꢏ

for normal operating conditions and

winter operation

If engine is down on power, check the

spark arresting screen in the muffler:

)OHHFHꢃILOWHUꢃꢏ

for dry and very dusty work areas

Unscrew the slotted nutsꢃꢀꢆꢂ.

Remove filter.

Separate the two halves of the filter.

Knock the filter out on the palm of

your hand or blow it out with com-

pressed air from the inside outwards

•

Take out the screw ꢀꢁꢂ.

Remove the spark arresting

screen ꢀꢄꢂ.

Clean spark arresting screen if

necessary.

If screen is damaged or coked up,

fit a new one.

Refit the spark arresting screen in

•

:KHQꢃWKHUHꢃLVꢃDꢃQRWLFHDEOHꢃORVVꢃRIꢃ

HQJLQHꢃSRZHUꢅ

•

Turn knob or lever ꢀꢁꢂabove rear

handle 90° counterclockwise.

Lift off the carburetor box cover ꢀꢄꢂ

vertically.

Clean away loose dirt from around

filter.

,QꢃFDVHꢃRIꢃVWXEERUQꢃGLUWꢅ

•

Wash the air filter in fresh, non-

flammable cleaning solution (e.g.

warm soapy water) and then dry.

•

the reverse sequence.

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ILOWHUꢃHOHPHQW+

Dirty air filters reduce engine power,

increase fuel consumption and make

starting more difficult.

Always replace a damaged filter

element.

Make sure that the choke shutter

•

ꢀ

ꢇꢂwith spring is properly fitted.

Reinstall the filter.

ꢆꢉ

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Remove the screw (1)

Pull out the shutter (2) and refit it

in the "winter" position

(bottom illustration)

•

Turn knob or lever above rear

Pry the shutter ꢀꢆꢂout of the

•

handle 90° counterclockwise.

Lift off the carburetor box cover

vertically.

carburetor box cover and slide it

into the slot ꢀꢇꢂat the bottom end of

the carburetor box cover.

Insert screw and tighten it down.

•

Preheated air from around the cylinder is

now drawn in along with cold air - this

helps prevent carburetor icing.

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It is advisable to fit the optional intake

air preheating kit if you use your saw in

extremely cold conditions (temperatures

below -10 °C /+14 °F, in powder or

drifting snow).

When fitted, the kit ensures that only

heated air is drawn in from around the

cylinder -

it prevents air filter and carburetor icing.

The shutter or cover for carburetor

preheating must be in the "winter"

position when the intake air preheating

kit is fitted.

If your saw is very cold (frost or ice on

machine), start the engine and keep it

at a high idle speed (with chain brake

disengaged) until it reaches normal

operating temperature.

Switching on electric handle heating*

Turn the bar over - every time you

sharpen the chain - and every time

you replace the chain -

this avoids one-sided wear,

especially at nose and

•

Move switch on front handle to ꢂ

Move switch back to ꢃ

to switch off heating.

•

The air filter may load up faster when

you use intake air preheating -

clean it more frequently.

underside of the bar.

There is no risk of overheating during

long periods of operation.

The whole heating system is

maintenance-free.

Regularly clean

ꢁꢃ ꢃ oil inlet hole

ꢄꢃ ꢃ oilway

In the event of engine running problems,

first check that conditions for use

of intake air preheating still apply.

ꢆꢃ ꢃ bar groove.

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•

with scale on filing gauge* -

at nose of Duromatic bars -

in area used most for cutting

on Rollomatic bars.

Special accessory

* Special accessory

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Chain

type

Pitch

Minimum

groove

depth

Rapid

Picco

Rapid

0.325"

3/8"

6.0 mm (0.24")

If groove depth is less than specified:

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Use a screwdriver to

The drive link tangs will otherwise scrape

along the bottom of the groove -

the cutters and tie straps will not ride on

the bar rails.

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or sooner if the wear marks on the sprok-

ket are deeper than approx.

remove the E-clip.

•

Take off the washer and

rim sprocket.

0.5 mm ( /64") since this would reduce

the life of the chain.

Check wear marks:

Left:

Examine splines on clutch drum -

if wear marks are severe, fit a new

clutch drum:

on webs of rim sprockets -

on teeth of spur sprockets.

Right:

Pull clutch drum and needle cage

off the crankshaft - clean the

crankshaft stub and needle cage,

and lubricate with STIHL grease

(tube 0781 120 1111).

Reassemble with new rim sprocket

and new clutch drum, if necessary -

fit rim sprocket with cavities facing

outward -

You can use gauge* 0000 893 4101

to check the depth of the wear marks on

spur and rim sprockets.

It is best to use two chains in rotation

with one sprocket.

•

HIRUHꢃUHPRYLQJꢃFKDLQꢃVSURFNHW

Remove chain sprocket cover,

chain and guide bar.

•

refit washer and E-clip on the crankshaft.

Disengage the chain brake:

Pull hand guard toward front handle.

•

Use only original STIHL clutch drums to

ensure correct operation

of the chain brake.

Special accessory

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Exhaust emissions are controlled by the

design of the fundamental engine

parameters and components

(e.g. carburation, ignition, timing and

valve or port timing) without the addition

of any major hardware.

The carburetor is set at the factory to

guarantee an optimum fuel-air mixture

under all operating conditions.

Emissions at idling speed and part-load

are kept to a minimum by reducing the

idle mixture.

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Use a screwdriver to

remove the E-clip.

Pull washer, spur sprocket and

needle cage off the crankshaft.

•

Check the air filter and clean or re-

•

place it if necessary.

Clean the crankshaft stub and

needle cage, and lubricate with

STIHL grease

Check the spark arresting screen

and clean or replace it if necessary.

•

(tube 0781 120 1111).

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Carefully screw the low speed

screw ꢀ/ꢂdown onto its seat.

Now open it one turn counter-

clockwise (standard

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Reassemble with new spur sprocket -

After fitting the clutch drum, rotate

it about one turn to engage

Turn the idle speed screw ꢀ/$ꢂclockwise

until chain begins to run -

oil pump drive -

refit washer and E-clip on the crankshaft.

setting, /ꢃ ꢃꢁ)

then back off the screw one quarter

of a turn.

Warm up the engine.

•

Use only original STIHL chain

sprockets to ensure correct

operation of the chain brake.

It is usually necessary to change the

setting of the idle speed screwꢃꢀ/$ꢂ

after every correction to the low speed

screwꢃꢀ/ꢂ.

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Turn the idle speed screw ꢀ/$ꢂ

counterclockwise until chain

stops running -

then turn screw another quarter turn in

the same direction.

Turn screws only very slightly and

carefully - even minor changes have a

noticeable effect on the engine’s running

behavior.

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Idle setting is too lean.

Turn the low speed screw ꢀ/ꢂcounter-

clockwise until engine runs and

accelerates smoothly.

Wrong fuel mix (too much engine oil in

the gasoline), a dirty air filter and

unfavorable running conditions (mostly

at part throttle etc.) affect the condition of

the spark plug. These factors cause

deposits to form on the insulator nose

which may result in trouble in operation.

If engine is down on power, difficult to

start or runs poorly at idling speed,

first check the spark plug.

Fit a new spark plug after

•

approx. 100 operating hours -

or earlier if the electrodes are

badly eroded.

Remove spark plug -

see chapter “Starting”:

Clean dirty spark plug.

Check electrode gap -

it should be 0.5mm/0.02" ꢀ$ꢂ-

readjust if necessary.

•

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To reduce the risk of fire and burn injury,

use only spark plugs authorized by

STIHL (see “Specifications”). Always

press spark plug boot ꢀꢄꢂsnugly onto

spark plug terminal ꢀꢁꢂof the proper

size. (Note: If terminal has detachable

SAE adapter nut, it must be attached.)

A loose connection between spark plug

terminal and ignition wire connector in

the boot may create arcing that could

ignite combustible fumes and cause a

fire.

Use only resistor type spark plugs

of the approved range.

•

Rectify problems which have caused

fouling of spark plug:

Incorrect carburetor setting, too much oil

in fuel mix, dirty air filter,

unfavorable running conditions, e.g.

operating at part load.

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Ease the cap ꢀꢈꢂꢃout of the starter

grip.

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•

Take out the screws ꢀꢁꢂ.

Remove four screws -

Push the hand guard upward -

Pull underside of fan housing away

from crankcase and remove it

downward

Ease the spring clip ꢀꢄꢂoff the

starter post.

Carefully slip the washer ꢀꢆꢂand

pawl ꢀꢇꢂoff the starter post.

Remove remaining rope from the

rotor and grip. Make sure the

sleeve does not slip out of the grip.

Tie a simple overhand knot in the

end of the new starter rope -

1113 195 8200 (Ø 3,5x960) -

and then thread the rope through

the top of the grip and the rope

bush ꢀꢉꢂ.

Thread the new rope -

•

3.5 mm ( /64") dia. and 960 mm

37 /4") long - through the rotor and

secure it with a simple overhand

knot.

•

Thread the other end of the rope

•

through the guide bush (from

inside) and the underside of the

starter grip and secure it with a

special knot - do not wind rope onto

rotor.

Refit the cap in the grip.

•

Pull the rope through the rotor and

secure it with a simple overhand

knot.

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Take particular care to avoid injury - the

rewind spring may pop out and unwind.ꢃ

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Lubricate the new spring with

a few drops of non-resinous oil.

Remove the rope rotor -

see ,,Replacing Starter Rope“ -

remove the spring housing

and parts of spring -

fit the new spring housing -

bottom plate must face upward -

slip outer spring loop over lug.

Reinstall the rope rotor,

tension the rewind spring,

fit the fan housing and secure in

position.

Make a loop in the unwound starter

rope and use it to turn the rope ro-

tor six full revolutions clockwise.

Hold the rotor steady -

straighten the twisted rope -

release the rotor -

•

let go of rope slowly so that

it winds onto the rotor.

•

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The starter grip must locate firmly

in the rope guide bush.

If the grip droops to one side:

Add one more turn on rope rotor

to increase spring tension.

•

Coat rope rotor bearing bore with

non-resinous oil -

slip rotor over starter post - turn it

back and forth so that anchor loop

of rewind spring engages -

If the spring pops out of its housing

during installation:

refit it in the counterclockwise

direction, starting outside and

working inward.

When starter rope is fully extended

it must still be possible to rotate

the rotor at least another half turn.

If this is not the case, the spring

is overtensioned and could break.

Take one turn off the rope.

•

Refit the pawl ꢀꢁꢂin the rotor -

fit the washer ꢀꢄꢂon the starter post

use screwdriver or suitable pliers

to install spring clip ꢀꢆꢂ

on starter post and engage it on the

pawl’s peg - the spring clip must

point clockwise - see illustration.

Refit the fan housing.

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Hhv‡hvvtꢁhq

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8‚ꢀꢀrp‡y’ꢁ†uhꢀƒrrqꢁpuhv

A properly sharpened chain slices

through wood effortlessly and requires

very little feed pressure.

3/8

Do not work with a dull or damaged

chain as it will increase the physical

effort required, produce unsatisfactory

results and a higher rate of wear.

The chain pitch (e.g. 3/8) is marked on

the depth gauge side of each cutter.

6ꢁ2 Filing angle

7ꢁ2 Side plate angle

8yrhꢁhqꢁpurpxꢁ’‚ˆꢀꢁpuhvꢁ

for cracks in the links and damaged

rivets -

V†rꢁ‚y’ꢁ†ƒrpvhyꢁ†hꢁpuhvꢁsvyr†

Chain type

Angle (°)

replace any damaged or worn parts of

the chain and match the new parts to the

shape and size of the original parts.

Other files have the wrong shape and

cut.

Rapid-Micro (RM)

Rapid-Super (RS)

Picco-Micro (PM/PMN)

D€ƒ‚ꢀ‡h‡) It is absolutely imperative to

comply with the angles and dimensions

specified below. If the †hꢁpuhvꢁv†

vp‚ꢀꢀrp‡y’ꢁ†uhꢀƒrrq - and in

particular if the depth gauge is set too

low - there is a risk of increased

kickback of the chainsaw, with resulting

qhtrꢀꢁ‚sꢁvwˆꢀ’.

Select file diameter according to chain

pitch - see table at the end of this

chapter.

Cutter shapes:

Micro = Semi-chisel

Super = Full chisel

You must observe certain angles when

resharpening the chain cutters

Tƒrpvsvrqꢁhtyr†ꢁ6ꢁhqꢁ7ꢁhꢀr

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i‡hvrqꢁhˆ‡‚€h‡vphyy’ꢁvsꢁꢀrp‚€€rꢂ

qrqꢁsvyr†ꢁ‚ꢀꢁ†uhꢀƒrvtꢁ‡‚‚y†ꢁhq

p‚ꢀꢀrp‡ꢁ†r‡‡vt†ꢁhꢀrꢁˆ†rqꢃ

Tryrp‡ꢁ‡urꢁhƒƒꢀ‚ƒꢀvh‡rꢁ†uhꢀƒrvt

‡‚‚y†ꢁs‚ꢀꢁ‡urꢁpuhvꢁƒv‡pu.

See “Technical Data” for the permitted

chain pitches.

Furthermore, the angles must be the

same on all cutters.

If angles are uneven:

Chain will run roughly, not in a straight

line, wear quickly and finally break.

Avoid touching the tie straps and

drive links with the file.

Rotate the file at regular intervals

while filing -

•

this avoids one-sided wear.

Use a piece of hardwood to remove

burrs from cutting edge.

90°

•

Check angles with the filing gauge.

As these requirements can be met only

after sufficient and constant practice:

Avyrꢁp‚ꢀꢀrp‡y’

6yyꢁpˆ‡‡rꢀ†ꢁ€ˆ†‡ꢁirꢁ‡urꢁ†h€rꢁyrt‡u

If you use a file holder or the FG 1:

Leave the chain on the bar.

Clamp the bar in a vise if necessary.

Lock the chain - push hand guard

forward

To rotate the chain - pull hand

guard against front handle

Sharpen chain frequently, take

away as little metal as possible -

two or three strokes of the file are

usually enough

If the cutters are not the same length,

they will have different heights. This

makes the chain run roughly and can

cause it to break.

•

V†rꢁhꢁsvyrꢁu‚yqrꢀꢃ*

•

A file holder must be used for manual

resharpening of Super chain. The correct

filing angle is marked on the file holder.

•

Find the shortest cutter and then file all

other cutters back to the same length.

This can be very time consuming - it is

best to have it done in the workshop on

an electric grinder.

90°

5° 70° 60°

80°

Always file from the inside to the

outside of the cutter.

The file only sharpens on the

forward stroke -

•

30°

35°

10°

0°

lift the file off the cutter on the back-

stroke.

Hold the file u‚ꢀv“‚‡hyy’ for all

chain types (at right angle to side of

guide bar) and file according to the

angles marked on the filing tool.

A‚ꢀꢁpurpxvtꢁhtyr†

STlHL filing gauge* (see table)

A universal tool for checking the filing

and side plate angles, depth gauge

setting and cutter length. Also cleans the

guide bar groove and oil inlet hole.

•

Special accessory

Chain

pitch

Depth gauge

distance “h”

Inch

(mm)

(Inch)

/8-PM

/8-PMN (9.32)

.325

(6.35)

(9.32)

0.65

0.45

0.65

0.80

(0.026)

(0.018)

(0.026)

(0.031)

(8.25)

(9.32)

(10.26)

.404

rƒ‡uꢁthˆtrꢁ†r‡‡vt

Round off depth gauges parallel to the

stamped marking.

This setting may be increased by 0.2 mm

0.008") for cutting softwood in mild

The depth gauge determines the height

at which the cutter enters the wood and

thus the thickness of the chip removed.

(

weather season - no frost.

6s‡rꢀꢁ†uhꢀƒrvtꢁ

Clean the chain thoroughly, remove

filings or grinding dust - lubricate the

chain by immersing it in an oil bath.

G‚rꢀvtꢁqrƒ‡uꢁthˆtr†

Distance between depth gauge and

cutting edge = h)

The depth gauge setting is reduced

when the chain is sharpened. Use filing

gauge to check the setting every time

you sharpen the chain and, if necessary,

lower the depth gauge with a flat or

triangular file so that it is level with the

filing gauge.

7rs‚ꢀrꢁy‚tꢁ‚ˆ‡ꢂ‚sꢂ†rꢀ‰vprꢁƒrꢀv‚q

Clean the chain with a brush and

immerse it in an oil bath.

Tuhꢀƒrvtꢁ‡‚‚y†

Chain pitch

Inch (mm)

Round file Ø Round file

mm (Inch) Part No.

File holder

Part No.

Filing gauge

Part No.

Flat file

Part No.

Sharpening kit*

Part No.

(6.35)

4.0 (5/32) 5605 772 4006

4.8 (3/16) 5605 772 4806

5.2 (13/64) 5605 772 5206

5605 750 4327

5605 750 4328

5605 750 4329

5605 750 4330

1110 893 4000

0000 893 4000

1110 893 4000

1106 893 4000

0814 353 3356

5605 007 1027

5605 007 1026

5605 007 1027

5605 007 1028

5605 007 1029

5605 007 1030

/8 PMN (9.32)

/8 P

.325

(9.32)

(8.25)

(9.32)

.404

(10.26) 5.5 (7/32) 5605 772 5506

consisting of file holder with round file, flat file and filing gauge.

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Please note that the following maintenance intervals apply for normal operating

conditions only. If your daily working time is longer than normal or cutting conditions are difficult

(very dusty work area tropical wood etc.) shorten the specified intervals accordingly.

Visual inspection (condition, leaks)

Clean

Complete machine

Throttle trigger , throttle trigger interlock,

Master Control, depending on model

Check operation

Clean by STIHL dealer

Chain brake

Check

Filter in fuel tank

Clean, Replace filter element

Fuel tank

Chain oil tank

Chain lubrication

Clean

Check

Inspect, also check sharpness

Check chain tension

Saw chain

Sharpen

Check (wear, damage)

Clean and turn over

Deburr

Replace

Check

Clean

Replace

Guide bar

Chain sprocket

Air filter

Cooling inlets

Cylinder fins

Clean

Check idle adjustment – chain must not turn

Readjust idle

Replace

Carburetor

Spark plug

All accessible screws and nuts

(not adjusting screws)

Retighten

Have replaced by STIHL dealer

Inspect

Inspect spark arresting screen

Clean or replace spark arresting screen

Check

Replace

Rubber vibration buffers

Muffler

Chain catcher

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STIHL yellow-labeled chains:

for 0.325" pitch:

Rapid-Micro (26 RM) and

Rapid-Super (26 RS)

for 3/8" pitch:

Rapid-Micro (33/36 RM) and

Rapid-Super (33/36 RS)

Recommended cutting attachments

for compliance with § 5.12 of ANSI

Standard B 175.1-1991

STIHL single cylinder two-stroke engine

Displacement:

Bore:

Stroke:

Idle speed:

48.7 cm (2.97 cu.in)

44 mm (1.73 in)

32 mm (1.26 in)

2.800 r.p.m.

(see page 12 of this Manual):

STIHL reduced kickback bar

Since new bar/chain combinations may

be developed after publication of this

Manual, ask your STIHL dealer for the

latest STIHL recommendations.

(with green label):

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Type:

Electronic magneto ignition

breakerless)

for 0.325" pitch and 3/8" pitch:

Rollomatic with sprocket nose

40, 45 or 50 cm (16, 18 or 20 in)

STIHL low kickback chain*

(with green label):

8.25 mm (0.325") Rapid-Micro 2

(26 RM 2),

9.32 mm (3/8") Rapid-Micro 2

(33/36 RM 2)

(

In order to comply with the kickback

performance requirements of § 5.12

of ANSI Standard B 175.1-1991,

do not use replacement saw chain

unless it has been designated as

meeting the ANSI § 5.12 requirements

on this specific powerhead, or has been

designated as "low kickback" saw chain*

in accordance with the ANSI B 175.1-

1991 standard.

Spark plug (suppressed):

Bosch WSR 6 F

or NGK BPMR 7 A

Electrode gap 0.5 mm (0.02 in)

Spark plug thread:

M 14x1.25; 9.5 mm (0.37 in) long

Chain sprocket:

-tooth for 0.325" pitch,

-tooth for 3/8" pitch

)

XHOꢆ2LOꢀ6\VWHP

Carburetor:

All position diaphragm carburetor with

integral fuel pump

Other cutting attachments available for

this powerhead are:

STIHL yellow-labeled bar:

*See definition of "low kickback chain"

on page 11 of this Manual.

Air filter:

Prefilter and bisectional box filter

Fuel capacity: 0.46 l (0.97 U.S. pt)

Fuel mixture: See chapter "Fuel"

Chain lubrication:

Fully automatic, speedcontrolled plunger

type oil pump. Additional manual oil flow

control

for 0.325" pitch and 3/8" pitch:

Rollomatic "S" with sprocket nose

40, 45 or 50 cm (16, 18 or 20 in)

Duromatic with stellite tipped nose

40, 45 or 50 cm (16, 18 or 20 in)

Oil tank capacity:

0.29 l (0.61 US pt)

:HLJKW

(without bar and chain)

26;

4.7 kg (10.4 lb)

4.9 kg (10.8 lb)

026 W

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Please enter your saw model, machine

number as well as the part numbers of

the guide bar, saw chain and chain

sprocket in the spaces provided on the

right

For recommended STIHL reduced

kickback cutting attachments

see section "Specifications"

of this Owner's Manual.

For periods of about 3 months or longer:

Drain and clean the fuel tank in a

well ventilated area.

Run engine until carburetor is dry -

•

this helps prevent the carburetor

diaphragms sticking together.

This will make re-ordering simpler.

Remove the saw chain and guide

bar, clean them and protect

with corrosion inhibiting oil.

•

The guide bar, saw chain and chain

sprocket are subject to normal wear and

tear.

Thoroughly clean the machine -

pay special attention to the

cylinder fins and air filter.

If you use a biological chain lubri-

cant (e.g. STIHL Bioplus), fill the

chain oil tank.

•

The part numbers of the standard bar,

chain and sprocket are printed on the

right for your convenience.

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•

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When purchasing these parts, always

quote the saw model, the part numbers

and names of the parts.

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Store the machine in a dry and high

•

or locked location - out of the

reach of children and other

unauthorized persons.

Original STIHL parts can be identified

by the STIHL part number,

the logo STIHL6

and the STIHL parts symbol ꢀ

The symbol may appear alone

on small parts.

Model

Machine number

Guide bar part number

Chain part number

Sprocket part number

depending on market

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Where a warrantable condition exists,

STIHL Incorporated will repair your small

off-road equipment engine at no cost to

you, including diagnosis (if the diagnostic

work is performed at an authorized

dealer), parts, and labor.

As the small off-road equipment engine

owner, you should be aware, however,

that STIHL Incorporated may deny you

warranty coverage if your small off-road

equipment engine or a part has failed

due to abuse, neglect, improper mainten-

ance or unapproved modifications.

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The U.S. Environmental Protection

Agency (EPA), the California Air

Resources Board (CARB) and STIHL

Incorporated are pleased to explain the

Emission Control System Warranty on

your model year 2000 and later equip-

ment type engine. In California, new

small off-road engines must be designed,

built and equipped to meet the State’s

stringent anti-smog standards. In other

states, new 1997 and later model year

small off-road equipment engines must

be designed, built and equipped, at the

time of sale, to meet the U.S. EPA

regulations for small non road engines.

The equipment engine must be free from

defects in materials and workmanship

which cause it to fail to conform with

U.S. EPA standards for the first two

years of engine use from the date of

sale to the ultimate purchaser.

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The small off-road equipment engines

are warranted for two years in California.

In other states, 1997 and later model

year small off-road equipment engines

are also warranted for two years. If any

emission-related part on your engine is

defective, the part will be repaired or

replaced by STIHL Incorporated free of

charge.

You are responsible for presenting your

small off-road equipment engine to a

STIHL service center as soon as a

problem exists. The warranty repairs will

be completed in a reasonable amount of

time, not to exceed 30 days.

If you have any questions regarding

your warranty rights and responsibilities,

please contact a STIHL customer

service representative at 1-800-467-

8445 or you can write to STIHL Inc.,

536 Viking Drive, P.O. Box 2015,

Virginia Beach, VA 23450-2015.

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As the small off-road equipment engine

owner, you are responsible for the per-

formance of the required maintenance

listed in your owner’s manual. STIHL

Incorporated recommends that you

retain all receipts covering maintenance

on your small off-road equipment engine,

but STIHL Incorporated cannot deny

warranty solely for the lack of receipts or

for your failure to ensure the perform-

ance of all scheduled maintenance.

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STIHL Incorporated warrants to the

ultimate purchaser and each subsequent

purchaser that your small off-road

equipment engine will be designed,

built and equipped, at the time of sale,

to meet all applicable regulations. STIHL

Incorporated also warrants to the initial

purchaser and each subsequent

purchaser that your engine is free from

defects in materials and workmanship

which cause the engine to fail to

STIHL Incorporated must warrant the

emission control system on your small

off-road engine for the period of time

listed below provided there has been no

abuse, neglect or improper maintenance

of your small off-road equipment engine.

Any replacement part or service that is

equivalent in performance and durability

may be used in non-warranty mainten-

ance or repairs, and shall not reduce the

warranty obligations of the engine

manufacturer.

Your emission control system includes

parts such as the carburetor and the

ignition system. Also included may be

hoses, and connectors and other

emission related assemblies.

conform with applicable regulations for a

period of two years.

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The warranty periods will begin on the

date the utility equipment engine is

purchased by the initial purchaser and

you have signed and sent back the

warranty card to STIHL. If any emission

related part on your engine is defective,

the part will be replaced by STIHL

Incorporated at no cost to the owner.

Any warranted part which is not

STIHL Incorporated shall remedy

war-ranty defects at any authorized

STIHL servicing dealer or warranty

station. Any such work shall be free of

charge to the owner if it is determined

that a warranted part is defective. Any

manufacturer-approved or equivalent

replacement part may be used for any

warranty mainten-ance or repairs on

emission-related parts and must be

provided without charge to the owner.

STIHL Incorporated is liable for damages

to other engine components caused by

the failure of a warranted part still under

warranty.

The maintenance instructions in this

manual are based on the application of

the recommended 2-stroke fuel-oil

mixture (see also instruction "Fuel").

Deviations from this recommendation

regarding quality and mixing ratio of fuel

and oil may require shorter maintenance

intervals.

scheduled for replacement as required

maintenance, or which is scheduled only

for regular inspection to the effect of

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This Emission Control Systems

Warranty shall not cover any of the

following:

"repair or replace as necessary" will be

warranted for the warranty period.

Any warranted part which is scheduled

for replacement as required mainten-

ance will be warranted for the period of

time up to the first scheduled replace-

ment point for that part.

- repair or replacement required

because of misuse, neglect or lack of

required maintenance,

The California Air Resources Board’s

Emission Warranty Parts List specifically

defines the emission-related warranted

parts. These warranted parts are:

- repairs improperly performed or

replacements not conforming to

STIHL Incorporated specifications that

adversely affect performance and/or

durability, and alterations or

modifications not recommended or

approved in writing by STIHL

Incorporated,

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Carburetor

Choke (Cold start enrichment system)

Intake manifold

Air filter

Spark plug

You, as the owner, shall not be charged

for diagnostic labor which leads to the

determination that a warranted part is

defective. However, if you claim warranty

for a component and the machine is

tested as non-defective, STIHL

Magneto or electronic ignition system

(ignition module)

Incorporated will charge you for the cost

of the emission test.

Catalytic converter (if applicable)

Fasteners

and

Mechanical diagnostic work will be

performed at an authorized STIHL

servicing dealer. Emission test may be

performed either at STIHL Incorporated

or at any independent test laboratory.

- replacement of parts and other

services and adjustments necessary

for required maintenance at and after

the first scheduled replacement point.

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Bring the product to any authorized

STIHL servicing dealer and present the

signed warranty card.

ꢁꢂꢃ

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ꢋꢂ

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Continuation of Important Safety Precautions

. Use caution when handling fuel.

Move the chainsaw at least

10. Do not operate a chainsaw that

is damaged, improperly

Manual maintenance instruc-

tions, should be performed by

competent chainsaw service

personnel.

(For example, if improper tools

are used to remove the

flywheel or if an improper tool

is used to hold the flywheel in

order to remove the clutch,

structural damage to the

flywheel could occur and could

be subsequently cause the

flywheel to burst).

10 feet (3 m) from the fueling

adjusted, or not completely

and securely assembled. Be

sure that the saw chain stops

moving when the throttle trigger

is released.

point before starting the engine.

. Do not allow other persons to

be near the chainsaw when

starting or cutting with the

chainsaw. Keep bystanders

and animals out of the work

area.

11. Shut off the engine before

setting the chainsaw down.

2. Use extreme caution when

cutting small size brush and

saplings because slender mate-

rial may catch the saw chain

and be whipped toward you or

pull you off balance.

. Do not start cutting until you

have a clear work area, secure

footing, and a planned retreat

path from the falling tree.

18. When transporting your chain-

saw, use the appropriate chain

guard (scabbard).

. Keep all parts of your body

away from the saw chain when

the engine is running.

13. When cutting a limb that is

under tension be alert for

Other important safety precautions

are contained in the body of the

Owner’s Manual.

springback so that you will not

be struck when the tension in

the wood fibers is released.

. Before you start the engine,

make sure that the saw chain

is not contacting anything.

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14. Keep the handles dry, clean,

. Carry the chainsaw with the

engine stopped, the guide bar

and saw chain to the rear, and

the muffler away from your

body.

and free of oil or fuel mixture.

When using a chainsaw for logging

purposes, refer to the Code of

Federal Regulations, Parts 1910

and 1928.

15. Operate the chainsaw only in

well-ventilated areas.

16. Do not operate a chainsaw in a

tree unless you have been

specifically trained to do so.

17. All chainsaw service, other than

the items listed in the Owner’s

WARNING!

The engine exhaust from this product

contains chemicals known to the State

of California to cause cancer, birth

defects or other reproductive harm.

458 133 3021

englisch / English USA / EPA