Stihl MS 462 C-M Instruction Manual

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MS 462 C-M

Instruction Manual2 - 30

0000-GXX-3166-A0

English

Contents

1 Introduction................................................. 2

2 Guide to Using this Manual.........................2

3 Overview..................................................... 2

4 Safety Precautions......................................4

5 Preparing the Saw for Operation.............. 11

6 Assembling the Saw................................. 11

7 Engaging and Disengaging the Chain Brake

.................................................................. 13

8 Mixing Fuel and Refueling the Chainsaw..13

9 Starting and Stopping the Engine............. 15

10 Checking the Saw..................................... 16

11 Operating the Saw.................................... 17

12 After Finishing Work..................................23

13 Transporting..............................................23

14 Storing.......................................................24

15 Cleaning....................................................24

16 Maintenance............................................. 25

17 Repairing...................................................26

18 Troubleshooting........................................ 26

19 Specifications............................................28

20 Bar and Chain Combinations.................... 28

21 Spare Parts and Accessories....................29

22 Disposal.................................................... 29

23 EC Declaration of Conformity................... 29

24 UKCA Declaration of Conformity.............. 30

1 Introduction

Dear Customer,

Thank you for choosing STIHL. We develop and manufacture our quality products to meet our customers’ requirements. The products are designed for reliability even under extreme con‐ ditions.

STIHL also stands for premium service quality. Our dealers guarantee competent advice and instruction as well as comprehensive service support.

STIHL expressly commit themselves to a sus‐ tainable and responsible handling of natural resources. This user manual is intended to help you use your STIHL product safely and in an environmentally friendly manner over a long service life.

We thank you for your confidence in us and hope you will enjoy working with your STIHL product.

Dr. Nikolas Stihl

IMPORTANT! READ BEFORE USING AND KEEP IN A SAFE PLACE FOR REFERENCE.

2 Guide to Using this Manual

2.1 Symbols used with warnings in the text

WARNING

■ This symbol indicates dangers that can cause

serious injuries or death. ► The measures indicated can avoid serious

injuries or death.

NOTICE

■ This symbol indicates dangers that can cause

damage to property. ► The measures indicated can avoid damage

to property.

2.2 Symbols in Text

This symbol refers to a chapter in this instruction manual.

3 Overview

3.1 Chainsaw

Translation of Original Instruction Manual

0000007758_014_GB

Printed on chlorine-free paper

Printing inks contain vegetable oils, paper can be recycled.

0458-790-0121-C. VA0.B22.

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3 Overview English

1 Front Hand Guard

Helps protect operator’s left hand from con‐ tact with the saw chain, serves to engage the chain brake and activates the chain brake by inertia in certain kickback situations.

2 Muffler

Reduces chainsaw noise emissions.

3 Spiked Bumper

Toothed stop for holding saw steady against wood while cutting.

4 Saw Chain

Cuts the wood.

5 Guide Bar

Supports and guides the saw chain.

6 Chain Catcher

Reduces risk of operator contact with the chain if it comes off the bar or breaks.

7 Tensioning Screw

Adjusts chain tension.

8 Chain Sprocket

Toothed wheel that drives the chain.

9 Chain Sprocket Cover

Covers the chain sprocket and secures the guide bar to the chainsaw.

10 Nuts

Secure chain sprocket cover to the chainsaw.

11 Shroud

Covers the engine.

12 Shroud Fasteners

Secure shroud to chainsaw.

13 Handlebar (Front Handle)

For holding, controlling and carrying the chainsaw.

14 Decompression Valve

Eases engine starts.

15 Spark Plug

Ignites fuel-air mixture in the engine.

16 Shutter

Serves to select summer or winter operating mode.

17 Spark Plug Boot

Connects ignition lead to spark plug

18 Air Filter

Filters air entering engine.

19 Throttle Trigger Lockout

Unlocks the throttle trigger.

20 Control Handle

For operating, holding and controlling the chainsaw.

21 Rear Hand Guard

Protects operator’s right hand from contact with the chain if it comes off the bar or breaks.

22 Throttle Trigger

Controls engine speed.

23 Master Control Lever

For starting, running and stopping the engine.

24 Fuel Tank Cap

Closes the fuel tank.

25 Starter Grip

Serves to crank the engine.

26 Oil Pump Adjusting Screw

Serves to adjust chain oil feed rate.

27 Stop

Limits travel of oil pump adjusting screw.

28 Oil Tank Cap

Closes the oil tank.

29 Chain Scabbard

Helps protect user from contact with saw chain.

# Serial Number

3.2 Features

The chainsaw may be equipped with the follow‐ ing features:

1 Handle heating switch

Switches the handle heating on and off. Heats the front and rear handles.

3.3 Symbols

Meanings of symbols that may be on the chain‐ saw:

This symbol marks the fuel tank.

This symbol marks the chain oil tank.

The chain brake is engaged and disen‐ gaged in this direction.

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English 4 Safety Precautions

This symbol shows the direction of rotation of the chain.

This symbol marks the oil pump adjust‐ ing screw and the chain oil feed rate.

Rotate in this direction to increase chain tension.

Shutter is in winter mode in this position.

WARNING

■ Using the chainsaw for purposes for which it is

not designed may result in serious or fatal inju‐ ries and damage to property. ►

Use the chainsaw as described in this instruction manual.

4.3 The Operator

Shutter is in summer mode in this position.

WARNING

This symbol marks the handle heating switch.

This symbol marks the decompression valve.

Master Control lever is moved in this direc‐ tion to stop the engine.

Master Control lever is moved to this posi‐ tion to stop the engine.

Engine is operated or started with the Mas‐ ter Control lever in this position.

Engine can be started with the Master Control lever in this position.

Guaranteed sound power level accord‐ ing to directive 2000/14/EC in dB(A) in order to make sound emissions of products comparable.

4 Safety Precautions

4.1 Warning Signs

Meanings of warning signs on the chainsaw:

Observe safety notices and take the necessary precautions.

Read, understand and save the instruction manual.

Wear safety glasses, hearing protec‐ tion and a hard hat.

Observe safety notices on kickback and take the necessary precautions.

4.2 Intended Use

The STIHL MS 462 C-M chainsaw is designed for cutting wood, limbing and felling trees.

■ Users without adequate training or instruction

cannot recognize or assess the risks involved in using the chainsaw. The user or other per‐ sons may sustain serious or fatal injuries.

► Read, understand and save the

instruction manual.

► If the chainsaw is passed on to another per‐

son: Always give them the instruction man‐ ual.

►

Make sure the user meets the following requirements:

The user must be rested.

–

The user must be in good physical con‐

–

dition and mental health to operate and work with the chainsaw. If the user’s physical, sensory or mental ability is restricted, he or she may work only under the supervision of or as instructed by a responsible person. The user can identify and assess the

–

dangers of the chainsaw. The user must be of legal age or is

–

being trained in a trade under supervi‐ sion in accordance with national rules and regulations. The user has received instruction from a

–

STIHL servicing dealer or other experi‐ enced user before working with the chainsaw for the first time. The user must not be under the influ‐

–

ence of alcohol, medication or drugs.

► If the user is working with a chainsaw for

the first time: Practice cutting logs on a sawhorse or other support.

►

If you have any queries: Contact your STIHL servicing dealer for assistance.

■ The chainsaw’s ignition system produces an

electromagnetic field. This field may interfere with some pacemakers. This can result in seri‐ ous or fatal injuries. ►

If the user has a pacemaker: Make sure the pacemaker is not affected.

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4 Safety Precautions English

►

4.4 Clothing and Equipment

WARNING

■

Long hair can become entangled in the saw during operation. This can result in serious injuries. ►

Tie up long hair so that it is above shoulder level.

■ Objects can be thrown through the air at high speed during operation. This can result in per‐ sonal injury.

► Wear close-fitting safety glasses.

Suitable safety glasses that have been tested and labeled in accord‐ ance with EN 166 or national stand‐ ards are available from retailers.

►

STIHL recommends that you wear a face shield.

► Wear a long-sleeved, snug-fitting upper

garment.

■ Noise occurs during operation. Noise can harm your hearing.

► Wear hearing protection.

Wear chainsaw boots with cut retardant inserts.

4.5 Work Area and Surroundings

WARNING

■

Bystanders, children and animals are not aware of the dangers of the chainsaw or thrown objects. Innocent bystanders, children and animals may be seriously injured and damage to property may occur. ►

Keep bystanders, children and animals

away from the work area. ► Do not leave the chainsaw unattended. ► Make sure that children cannot play with

the chainsaw.

■ Hot exhaust gas is emitted through the muffler while the engine is running. Hot exhaust gas can ignite easily flammable materials and cause a fire. ►

Keep exhaust gas well away from easily flammable materials.

4.6 Safe Condition

4.6.1 Chainsaw

■ Falling objects can cause head injuries. ► If there is a danger of falling objects

during operation: Wear a safety hard hat.

■ Dust can be whipped up during operation:

Whipped up dust can damage the respiratory passages and cause allergic reactions. ►

If dust is whipped up and forms a cloud: Wear a dust respirator mask.

■ Inappropriate clothing can snag on wood,

brush or the saw. Not wearing suitable cloth‐ ing may result in serious injury. ►

Wear snug-fitting clothing.

► Do not wear a scarf or jewelry.

■ The user can come into contact with the rotat‐

ing saw chain during operation. This can result in serious injuries. ►

Wear long trousers with cut-retardant inserts.

■ The user can be cut by the wood during oper‐

ation. The user can come into contact with the saw chain during cleaning and maintenance work. This can result in personal injury. ►

Wear work gloves made of durable mate‐ rial.

■ Wearing unsuitable footwear may cause you

to slip or stumble. Contact with the rotating saw chain can result in cuts. This can result in personal injury.

The chainsaw is in a safe condition if the follow‐ ing points are observed:

The chainsaw is not damaged.

–

There is no fuel leaking from the chainsaw.

–

The fuel tank and oil tank caps are closed.

–

The chainsaw is clean.

–

The chain catcher is fitted and undamaged.

–

The chain brake is operating properly.

–

The controls function properly and have not

–

been modified. The chain lubrication is operating properly.

–

Wear marks on the chain sprocket are not

–

deeper than 0.5 mm. A combination of guide bar and saw chain rec‐

–

ommended in this User Manual is mounted. The guide bar and saw chain are properly

–

mounted. The saw chain is properly tensioned.

–

Only original STIHL accessories designed for

–

this chainsaw model are fitted. The accessories are correctly attached.

–

WARNING

■

If not in safe condition, components may no longer operate correctly, safety devices may be disabled and fuel leakage may occur. This may result in serous or fatal injury to people. ►

Work only with an undamaged chainsaw.

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English 4 Safety Precautions

► If fuel is leaking from the chainsaw: Do not

use the chainsaw and contact a STIHL dealer for assistance.

►

Close the fuel tank and oil tank caps. ► If the chainsaw is dirty: Clean the chainsaw. ► Work only with property fitted and undam‐

aged chain catcher. ► Never modify your chainsaw. Exception:

Mounting a combination of guide bar and

saw chain recommended in this User Man‐

ual. ►

If the controls do not function properly: Do

not use your chainsaw. ► Only fit original STIHL accessories

designed for this chainsaw model. ► Mount the guide bar and saw chain as

described in this User Manual. ► Attach accessories as described in this

User Manual or in the User Manual for the

accessories. ►

Never insert objects in the chainsaw’s

openings. ► Replace worn or damaged labels. ► If you have any doubts, be sure to consult a

STIHL dealer.

4.6.2 Guide Bar The guide bar is in a safe condition if the follow‐ ing points are observed:

Guide bar is not damaged.

–

Guide bar is not deformed.

– –

The minimum groove depth is maintained,

19.3. Bar rails are free from burrs.

–

Bar groove is not pinched or splayed.

–

WARNING

■

If the guide bar is not in a safe condition, it can no longer support and guide the saw chain properly. The rotating saw chain can jump off the guide bar. This can result in serious or fatal injuries. ►

Work only with an undamaged guide bar. ► If the groove depth is less than the mini‐

mum depth: Mount a new guide bar. ► Deburr the guide bar every week. ► If you have any queries: Contact your

STIHL servicing dealer.

4.6.3 Saw Chain The saw chain is in a safe condition if the follow‐ ing points are observed:

Chain is not damaged.

–

Chain is properly sharpened.

–

The service marks on the cutters are still visi‐

–

ble.

WARNING

■ If components do not comply with safety requirements, they will no longer function properly and safety devices may be rendered inoperative. This can result in serious or fatal injuries. ►

Work only with an undamaged saw chain. ► Sharpen the chain properly. ► If you have any queries: Contact your

STIHL servicing dealer for assistance.

4.7 Fuel Mixture and Refueling

WARNING

■ This chainsaw requires a fuel mixture of gaso‐ line and two-stroke engine oil. Mixed fuel and gasoline are extremely flammable. If fuel mix‐ ture or gasoline make contact with open fire or hot objects, they can cause a fire or explo‐ sions. Persons may be seriously or fatally injured and property may be damaged. ►

Protect fuel mixture and gasoline from heat

and fire. ► Do not spill mixed fuel or gasoline. ► If fuel has been spilled: Wipe up fuel with a

cloth and do not attempt to start engine until

all parts of the chainsaw are dry. ►

Do not smoke. ► Never refuel near a fire. ► Shut off the engine and allow it to cool

down before refueling. ► Start the engine at least 3 meters from the

fueling spot, outdoors only.

■ Inhaling fuel fumes and gasoline fumes can have toxic effects. ► Avoid inhaling fuel fumes or gasoline

fumes.

► Refuel in a well-ventilated location.

■ The chainsaw will become hot during opera‐ tion, or in a very hot environment. Depending on the type of fuel, altitude, ambient tempera‐ ture and the temperature of the saw, the fuel expands and can cause a build-up of pressure in the tank. Fuel may spray out and ignite when the fuel tank cap is opened. The user may be seriously injured and property damage may occur. ► Allow the chainsaw to cool down before

opening the fuel tank cap.

► Open the fuel tank cap slowly and not all at

once.

■ Clothing that has been in contact with fuel or gasoline will become more easy to ignite. Per‐ sons may be seriously or fatally injured and property may be damaged.

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4 Safety Precautions English

► If your clothing comes into contact with fuel

or gasoline: Change your clothing.

■ Fuel mix, gasoline and two-stroke engine oil can harm the environment. ► Do not spill fuel, gasoline or two-stroke

engine oil.

► Dispose of fuel mix, gasoline and two-

stroke engine oil in accordance with local regulations and environmental require‐ ments.

■

Fuel, gasoline or two-stroke engine oil can cause irritation if they come into direct contact with the skin or eyes. ►

Avoid contact with fuel, gasoline and twostroke engine oil.

► If skin contact occurs: Wash affected areas

of skin with plenty of water and soap.

► If eye contact occurs: Flush eyes with

plenty of water for at least 15 minutes and consult a doctor.

■

The ignition system of the chainsaw generates sparks. Unconfined sparks may cause a fire or an explosion in an easily combustible or explo‐ sive environment. Persons may be seriously or fatally injured and property may be dam‐ aged. ►

Use the spark plugs described in this

instruction manual. ► Insert and tighten down the spark plug. ► Connect the spark plug boot and press it

down firmly.

■ The saw can be damaged if it is run on a mix‐ ture of fuel which includes unsuitable gasoline or unsuitable two-stroke engine oil, or if an incorrect mix ratio of gasoline and two-stroke engine oil is used. ►

Mix the fuel as described in this instruction manual.

■ The mixture of gasoline and two-stroke engine oil can separate or age if it is stored for a long period. The chainsaw can be damaged if it is used with a fuel mix that has separated or has aged. ►

Before refueling the saw: Thoroughly mix the fuel.

► Use a mixture of gasoline and two-stroke

engine oil that is not older than 30 days (STIHL MotoMix: 5 years).

4.8 Working

4.8.1 Sawing

WARNING

■

Always work within calling distance of others in case help is needed.

► Make sure than persons outside the work

area are within calling distance.

■ If the engine is not started properly, the user may lose control of the chainsaw. This can result in serious injuries. ►

Start the engine as described in this instruc‐ tion manual.

► If the saw chain is touching the ground or

objects: Do not start the engine.

■ The user cannot concentrate on the work in certain situations. The user can lose control of the saw, trip or fall and be seriously injured. ►

Work calmly and carefully.

► If light and visibility are poor: Do not use

your saw. ► Operate the chainsaw alone. ► Do not work above shoulder height. ► Watch out for obstacles. ► Stand on the ground while working and

keep a good balance. If it is necessary to

work at heights: Use a lift bucket or a safe

platform. ►

If you begin to feel tired: Take a break.

■ Exhaust gas is produced when the engine is running. Breathing in exhaust gas can have toxic effects. ►

Avoid inhaling exhaust gas.

► Operate the chainsaw is a well ventilated

location.

► In the event of nausea, headache, visual

disturbances, problems with hearing or diz‐ ziness: Stop work and seek medical advice.

■

The user’s ability to hear and assess noises is restricted when wearing hearing protection with the engine running. ►

Work calmly and carefully.

■ The user will not be able to control the chain‐ saw properly if it is operated with the Master

Control lever in position serious injuries. ►

Move the Master Control lever to position .

► Start the engine as described in this instruc‐

tion manual.

■ Do not accelerate the engine with the chain brake engaged since this can damage the chain brake. ►

Disengage the chain brake before you start cutting.

■ The rotating saw chain can cut the operator. This can result in serious injuries. ► Do not touch the rotating saw chain. ► If the saw chain is blocked by an object:

Shut off the engine and engage the chain brake. Then remove the object causing the blockage.

. This can result in

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English 4 Safety Precautions

■ The rotating chain becomes hot and expands. If the chain is not lubricated sufficiently and retensioned, it can come off the guide bar or break. This can result in serious injuries and damage to property. ►

Use special chain oil.

► Check chain tension regularly during cutting

work. If chain tension is insufficient: Ten‐ sion the chain.

■

If the behavior of the saw changes during operation or feels unusual, it may no longer be in a safe condition. This can result in serious injuries and damage to property. ►

Stop work and contact your STIHL dealer for assistance.

■ Saw vibrations may occur during operation. ► Wear gloves. ► Take regular breaks. ► If signs of circulation problems occur: Seek

medical advice.

■ Sparks may occur if the rotating chain makes contact with a hard object. Sparks may cause a fire in an easily combustible location. This can result in serious or fatal injuries and dam‐ age to property. ►

Do not work in an easily combustible loca‐ tion.

■ Note that the saw chain continues to rotate for a short period after you release the trigger. The rotating saw chain can cut the user. This can result in serious injuries. ►

Wait for the chain to come to a standstill.

WARNING

■

The guide bar can be pinched when cutting wood that is under tension. The user can lose control of the saw and be seriously injured. ►

Make a relieving cut in the compression side (1) first, then perform bucking cut at the tension side (2).

4.8.2 Limbing

WARNING

■

If the underside of the felled tree is limbed first, it will no longer be supported on the

8 0458-790-0121-C

ground by branches. The tree can move dur‐ ing cutting work. This can result in serious or fatal injuries. ►

Cut through large limbs on the underside of the tree only after it has been bucked.

► Do not stand on the log while limbing it.

■ A branch may fall to the ground during limbing. The user may trip, fall or be seriously injured. ► Limb from the base to the crown of the tree.

4.8.3 Felling

WARNING

■ Inexperienced users cannot assess the dan‐ gers when felling a tree. Persons may be seri‐ ously or fatally injured and property may be damaged. ►

The user needs relevant knowledge of fell‐ ing technology and experience of felling work.

►

If anything is unclear, consult an experi‐ enced expert for assistance and to deter‐ mine the appropriate felling technique.

■

A tree and branches can fall on bystanders or objects during felling. The larger the falling parts are, the greater the risk of serious or fatal injury to people. Damage to property may occur. ►

Determine direction of fall so that the area in which the tree falls is clear.

► Do not allow bystanders, children or ani‐

mals within 2.5 tree lengths of the work area.

►

Remove broken or dead branches from the tree crown before felling.

► If bent or withered branches cannot be

removed from the tree crown, consult an experienced expert for assistance and to determine the appropriate felling technique.

►

Be aware of the tree crown and crowns of neighboring trees, and keep clear of falling branches.

■

When the tree falls the trunk could break or spring back in the direction of the user. This may result in serious or fatal injury to the user. ►

Plan a sideways escape path behind the tree.

► Walk backwards along the escape path and

observe the falling tree.

► Do not walk backwards down slopes.

■ Obstacles in the work area and on the escape path can hinder the user. The user may trip and fall. This may result in serious or fatal injury to the user. ►

Remove all obstacles from the work area and escape path.

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4 Safety Precautions English

■ If you cut into or through the hinge, stabilizing strap or holding strap too soon, the intended direction of fall cannot be controlled or the tree may fall prematurely. Persons may be seri‐ ously or fatally injured and property may be damaged. ►

Do not cut into or through the hinge.

► Cut through the stabilizing strap or holding

strap last.

► If the tree begins to fall too soon: Abandon

the felling cut and retreat along the escape path.

■

Kickback can occur if the rotating chain in the upper quadrant of the bar nose makes contact with a hard felling wedge and is suddenly braked. There is a risk of serious or fatal injury. ►

Use aluminum or plastic felling wedges.

■ If the tree does not fall all the way to the ground or gets caught on another tree, the operator cannot finish the operation in a con‐ trolled manner. ►

Stop the felling operation and use a cable winch or suitable vehicle to pull the tree to the ground.

4.9 Reactive Forces

4.9.1 Kickback

WARNING

If kickback occurs, the saw can be thrown up

■ in the direction of the operator. The operator

can lose control of the saw and be seriously or fatally injured. ►

Hold the saw firmly with both hands.

► Always keep your body out of the plane of

the cutting attachment.

► Use the working techniques described in

this instruction manual.

► Do not cut with the upper quadrant of the

bar nose.

► Always cut with a properly sharpened and

tensioned saw chain. ► Use a reduced kickback saw chain. ► Use a guide bar with a narrow radius nose. ► Always cut with the chain running at full

speed.

4.9.2 Pull-in

Kickback can be caused for the following rea‐ sons:

The rotating saw chain in the upper quadrant

–

of the bar nose makes contact with a hard object and is suddenly braked. The rotating saw chain is pinched at the bar

–

nose.

The chain brake cannot prevent kickback.

0458-790-0121-C 9

The saw is pulled away from the operator when the bottom of the bar is used for cutting.

WARNING

■

If the rotating chain makes contact with a hard object and is suddenly pinched, the saw is abruptly jerked away from the operator. The operator can lose control of the saw and be seriously or fatally injured. ►

Hold the saw firmly with both hands. ► Operate the saw as described in this

instruction manual. ► Keep the guide bar straight in the cut. ► Apply the spiked bumper properly. ► Always cut with the chain running at full

speed.

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English 4 Safety Precautions

4.9.3 Pushback

4.11 Storing

WARNING

■

Children are not aware of and cannot assess the dangers of a chainsaw and can be seri‐ ously injured. ►

Shut off the engine. ► Engage the chain brake. ► Fit the scabbard so that it completely cov‐

ers the guide bar.

The saw is pushed back toward the operator when the top of the bar is used for cutting.

WARNING

■ If the rotating chain makes contact with a hard object and is suddenly pinched, the saw can be abruptly pushed back toward the operator. The operator can lose control of the saw and be seriously or fatally injured. ►

Hold the saw firmly with both hands.

► Operate the saw as described in this

instruction manual. ► Keep the guide bar straight in the cut. ► Always cut with the chain running at full

speed.

4.10 Transport

WARNING

■

The saw may turn over or shift during trans‐ port. This may result in serious injury to people and damage to property. ►

Shut off the engine. ► Engage the chain brake. ► Fit the chain scabbard so that it completely

covers the guide bar. ► Secure the chainsaw with lashing straps,

belts or a net to prevent it turning over and

moving.

The muffler and engine may be hot after a

■ period of operation. There is a risk of burn

injuries. ►

Carry the chainsaw by holding the front handle in your right hand with the guide bar pointing to the rear.

► Store the saw out of the reach of children.

■ Dampness can corrode the electrical contacts on the saw and metal components. This can damage the saw. ►

Store the saw in a clean and dry condition.

4.12 Cleaning, Maintenance and

Repair

WARNING

■ The saw chain can start up unintentionally if the engine is running during cleaning, mainte‐ nance or repair operations. This may result in serious injury to people and damage to prop‐ erty. ►

Shut off the engine.

► Engage the chain brake.

■ The muffler and engine may be hot after a period of operation. This can result in burn injuries. ►

Wait until the muffler and engine cool down.

■ Aggressive cleaning agents, a water jet or pointed objects can damage the chainsaw, guide bar and saw chain. If the chainsaw, guide bar or saw chain are not cleaned cor‐ rectly, components may no longer function properly or safety devices may be rendered inoperative. They may cause serious injury to persons. ► Clean the chainsaw, guide bar and saw

chain as described in this user manual.

■ If the chainsaw is not maintained as described in this user manual, components may no lon‐ ger function properly or safety devices may be rendered inoperative. This may result in serous or fatal injury to people. ►

Service or repair the chainsaw as described in this user manual.

■ If the guide bar and saw chain are not main‐ tained or repaired as described in this user manual, components may no longer function properly or safety devices may be rendered inoperative. They may cause serious injury to persons.

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5 Preparing the Saw for Operation English

► Service or repair the guide bar and saw

chain as described in this User Manual.

■ The user may be cut by the sharp cutters while cleaning or servicing the saw chain. This may result in injury to the user. ►

Wear work gloves made from resistant material.

► Turn the tensioning screw (3) counterclock‐

wise until the tensioner slide (4) butts against the left end of the housing.

5 Preparing the Saw for

Operation

5.1 Preparing the Saw for Opera‐

tion

Perform the following steps before starting work: ► Make sure the following components are in a

safe condition:

–

Chainsaw, 4.6.1.

–

Guide bar, 4.6.2.

–

Saw chain, 4.6.3.

►

Clean the saw,

►

Mount the bar and chain, 6.1.1.

►

Tension the saw chain, 6.2.

►

Fill up with chain oil, 6.3.

►

Check the chain brake, 10.4.

►

Refuel the saw, 8.2.

►

Check the controls, 10.5.

►

Check chain lubrication, 10.6.

► If you cannot carry out these steps: Do not use

your chainsaw and contact your STIHL servic‐ ing dealer for assistance.

15.1.

6 Assembling the Saw

6.1 Mounting and Removing the

Bar and Chain

6.1.1 Mounting the Bar and Chain

The bar and chain combinations that can be used with the chain sprocket are listed in the specifications, ► Shut off the engine and engage the chain

brake.

20.1.

► Fit the chain in the bar groove so that the

arrows on the tie straps on the top of the bar point in the direction of rotation.

► Fit the guide bar and chain on the saw and

check the following points:

Chain drive links are seated in teeth of

–

chain sprocket (7). Collar studs (5) are located in slot in tail of

–

guide bar (6). Peg of tensioner slide (4) engages hole (8)

–

in guide bar (6).

The guide bar (6) may be either way round. The logo on the guide bar (6) may also be upside down. ► Disengage the chain brake.

► Turn the tensioning screw (3) clockwise until

the chain fits snugly against the bar. Make

► Rotate the nuts (1) counterclockwise until the

chain sprocket cover (2) can be removed.

► Remove the chain sprocket cover (2).

0458-790-0121-C 11

sure the drive link tangs engage the bar groove. The guide bar (6) and chain are seated against the saw.

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English 6 Assembling the Saw

► Fit the sprocket cover (2) so that it is flush with

the saw.

► Fit and tighten down the nuts (1) firmly.

6.1.2 Removing the Bar and Chain

► Shut off the engine and engage the chain

brake.

► Rotate the nuts counterclockwise until the

chain sprocket cover can be removed.

► Remove the sprocket cover. ► Turn the tensioning screw counterclockwise as

far as stop. The chain is now slack.

► Remove the bar and chain.

6.2 Tensioning the Saw Chain

The saw chain expands or contracts during cut‐ ting work. Chain tension changes as a result. Check chain tension regularly during operation and readjust if necessary.

► Swing the grip on the oil tank cap to the verti‐

cal position.

► Turn the oil tank cap counterclockwise as far

as stop. ► Remove the oil tank cap. ► Fill up with chain oil, taking care not to spill

any oil and do not overfill the tank. ► If the grip on the oil tank cap has dropped into

the closed position: Raise the grip until it is

vertical.

► Shut off the engine and engage the chain

brake.

► Place the cap in the filler opening so that mark

(1) lines up with mark (2).

► Loosen the nuts (1). ► Disengage the chain brake. ► Hold the bar nose up and turn the tensioning

screw (2) clockwise until the following points apply:

Chain sag ‘a’ in the center of the bar is 1 - 2

–

mm. The chain can still be pulled easily along the

–

bar with two fingers.

► Keep holding the bar nose up and tighten

down the nuts (1) firmly.

► If chain sag ‘a’ in the center of the bar is not 1

- 2 mm: Readjust chain tension.

► Press the cap down and rotate it clockwise as

far as stop.

The cap snaps into place. The mark (1) points

to mark (3), ► Check to see if the oil tank cap can be pulled

upwards and off. ► If the oil tank cap cannot be pulled upwards

and off: Fold down the grip on the oil tank cap.

The oil tank is closed.

If the oil tank cap can be pulled upwards and off, perform the following steps: ► Place the oil tank cap in the filler opening – in

any position.

6.3 Filling Up with Chain Oil

Chain oil lubricates and cools the rotating chain. ► Shut off the engine and engage the chain

brake.

► Place your saw on a level surface so that the

oil tank cap faces up.

► Use a damp cloth to clean the tank cap and

the area around it.

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7 Engaging and Disengaging the Chain Brake English

► Press the cap down and rotate it clockwise as

far as stop.

► Press the cap down and rotate it counterclock‐

wise until mark (1) points to mark (2). ► Now try again to close the oil tank. ► If the oil tank still cannot be closed properly:

Do not use the chainsaw and contact a STIHL

dealer for assistance.

The chainsaw is not in a safe condition.

6.4 Mounting the Spiked Bumper

7.2 Disengaging the Chain Brake

► Pull the hand guard toward the front handle

with your left hand. The hand guard engages with an audible click. The chain brake is disengaged.

8 Mixing Fuel and Refueling

the Chainsaw

8.1 Mixing fuel

► Place the spiked bumper (1) in position. ► Fit the screw (2). ► Insert screw (3) through spiked bumper and

nut (4). ► Tighten down the screws (2) and (3) firmly.

The spiked bumper (1) must not be removed.

7 Engaging and Disengaging

the Chain Brake

7.1 Engaging the Chain Brake

The saw is equipped with a chain brake.

The chain brake is activated by the inertia of the front hand guard if the kickback force is high enough or can be engaged by the operator.

► Push the hand guard away from the front han‐

dle with your left hand.

The hand guard engages with an audible click.

The chain brake is engaged.

The fuel required for this chainsaw is a mixture of two-stroke engine oil and gasoline, in a mixing ratio of 1:50.

STIHL recommends you use STIHL MotoMix.

If you mix the fuel yourself, use only STIHL twostroke engine oil or another high-performance engine oil in accordance with JASO FB, JASO FC, JASO FD, ISO-L-EGB, ISO-L-EGC or ISO-LEGD.

STIHL specifies STIHL HP Ultra two-stroke engine oil or an equivalent high-performance engine oil in order to maintain emission limits over the machine’s service life. ► Make sure that the octane number of the gas‐

oline is at least 90 RON and the ethanol con‐ tent is not more than 10% (for Brazil: 27%).

► Make sure the two-stroke engine oil you are

using meets the requirements.

► Depending on the desired amount of fuel,

determine the correct amounts of two-stroke engine oil and gasoline in a mixing ratio of 1:50. Examples for fuel mixes:

20 ml Two-stroke engine oil, 1 l gasoline

–

60 ml Two-stroke engine oil, 3 l gasoline

–

100 ml Two-stroke engine oil, 5 l gasoline

–

► Pour two-stroke engine oil into a clean

approved fuel canister first and then add gaso‐ line.

► Thoroughly mix the fuel before topping up.

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English 8 Mixing Fuel and Refueling the Chainsaw

8.2 Filling up the Chainsaw with

Fuel

► Shut off the engine and engage the chain

brake. ► Allow the chainsaw to cool down.

► When topping up, ensure that no fuel is spil‐

led and that the fuel level remains at least 15 mm under the edge of the tank.

► If the handle on the fuel tank cap has dropped

into the closed position: Fold out the handle.

► Place your chainsaw on a level surface so that

the fuel tank cap faces up. ► Use a damp cloth to clean the fuel tank cap

and the area around it. ► Fold out the handle on the fuel tank cap.

► Place the fuel tank cap in the filler opening so

that mark (1) lines up with mark (2).

► Press the fuel tank cap down and rotate it

clockwise until it stops. The fuel tank cap snaps into place. Mark (1) is in line with mark (4) and points to mark (3).

WARNING

■ The chainsaw will become hot during opera‐

tion, or in a very hot environment. Depending

on the type of fuel, altitude, ambient tempera‐

ture and the temperature of the saw, the fuel

expands and can cause a build-up of pressure

in the tank. Fuel may spray out and ignite

when the fuel tank cap is opened. The user

may be seriously injured and property damage

► Check to see if the fuel tank cap can be pulled

up and off.

► If the fuel tank cap cannot be pulled up and

off: Fold the handle flat to the top of the cap. The fuel tank is closed.

If the fuel tank cap can be pulled up and off, per‐ form the following steps: ► Place the fuel tank cap in the filler opening – in

any position.

may occur.

► Allow the chainsaw to cool down before

opening the fuel tank cap.

► Open the fuel tank cap slowly and not all at

once.

► Turn the fuel tank cap about 1/8-of-a-turn

counterclockwise.

If the fuel tank is under pressure, you will hear

the overpressure being released. ► When the tank is no longer under pressure:

Turn the fuel tank cap counterclockwise until

the marks on the cap and fuel tank are in

alignment. ► Remove the fuel tank cap.

NOTICE

■ Exposure to light, direct sunlight and extreme

temperatures may accelerate fuel separation

► Press the fuel tank cap down and rotate it

clockwise until it stops.

► Press the cap down and rotate it counterclock‐

wise until mark (1) points to mark (2). ► Now try again to close the fuel tank. ► If the fuel tank still cannot be closed properly:

Do not use the chainsaw and contact a STIHL

dealer for assistance.

The chainsaw is not in a safe condition.

or aging. Topping the chainsaw up with unmixed or older fuel may damage the chain‐ saw. ►

Thoroughly mix the fuel before topping up.

► Do not top up with fuel stored for more than

30 days (STIHL MotoMix: 5 years).

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9 Starting and Stopping the Engine English

9 Starting and Stopping the

Engine

9.1 Starting the Engine

Place the saw on level ground. Hold the

–

saw firmly on the ground with your left hand on the handlebar – your thumb should be under the handle. Put the heel of your right boot into the rear handle and press down. Hold the saw firmly with your left hand on

–

the handlebar – your thumb should be under the handle. Hold the rear handle tightly between your legs, just above the knees.

► Engage the chain brake (2). ► Pull off the chain guard (scabbard). ► Depress the decompression valve (1). ► Move the Master Control lever (3) to posi‐

tion

► If the engine is at ambient temperature:

► Pull the starter grip slowly with your right hand

until you feel it engage. ► Pull the starter grip quickly and allow the

starter rope to rewind several times until the

engine runs. ►

If the Master Control lever (3) is in position

Briefly depress the lockout lever (4) and blip

the throttle trigger (5).

The Master Control lever springs to position .

The engine runs at idling speed.

► Press down the throttle trigger lockout (5) and

hold it there. ► Pull the throttle trigger (4) and hold it there. ► Move the Master Control lever (3) to position

and hold it there.

► Release the throttle trigger (4) and lockout

lever (5).

The Master Control lever (3) engages in posi‐

tion

NOTICE

■ Do not accelerate the engine with the chain brake engaged since this can damage the chain brake. ►

Disengage the chain brake before you start cutting.

► Disengage the chain brake.

Your saw is ready for operation.

► If the saw chain rotates while the engine is

idling: ► Shut off the engine and engage the chain

brake.

► Do not use your chainsaw and contact your

STIHL servicing dealer for assistance. The saw has a malfunction.

► If the engine does not start: Move the Master

Control lever (3) to position and try again to start the engine.

► Hold the chainsaw firmly in one of three ways:

Place the saw on level ground. Hold the

–

saw firmly on the ground with your left hand on the handlebar – your thumb should be under the handle. Put the toe of your right boot into the rear handle and press down.

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9.2 Shut off the engine.

► Measure depth of bar groove with scale on

► Release the throttle trigger (2) and lockout

lever (3). The saw chain stops running.

► Move the Master Control lever (1) to posi‐

tion The engine stops and the Master Control lever

(1) springs back to position

► If the engine does not stop:

► Move the Master Control lever to posi‐

tion The engine stops.

► Do not use your chainsaw and contact your

STIHL filing gauge.

► Install a new guide bar if one of the following

points applies:

Guide bar is damaged.

–

Measured bar groove depth is less than

–

specified minimum depth, 19.3. Bar groove is pinched or splayed.

–

► If you have any queries: Contact your STIHL

servicing dealer for assistance.

10.3 Checking the Saw Chain

► Shut off the engine and engage the chain

brake.

STIHL servicing dealer for assistance. The saw has a malfunction.

10 Checking the Saw

10.1 Checking the Chain Sprocket

► Shut off the engine. ► Disengage the chain brake. ► Remove the chain sprocket cover. ► Remove the bar and chain.

► Use a STIHL filing gauge (2) to check the

height of the depth gauges (1). The STIHL fil‐ ing gauge must match the chain pitch.

► If a depth gauge (1) projects from the filing

gauge (2): Lower the depth gauge (1), 16.3.

► Use a STIHL gauge to check the wear marks

on the sprocket.

► If wear marks are deeper than a = 0.5 mm: Do

not use your chainsaw and contact your STIHL servicing dealer for assistance. The chain sprocket must be replaced.

10.2 Checking the Guide Bar

► Shut off the engine and engage the chain

brake.

► Remove the chain and guide bar.

► Make sure the service marks (1 to 4) on the

cutters are visible.

► If one of the service marks is not visible on a

cutter: Do not use your chainsaw and contact your STIHL servicing dealer for assistance.

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11 Operating the Saw English

► Use a STIHL filing gauge to check that a filing

angle of 30° has been maintained on all cut‐ ters. The STIHL filing gauge must match the chain pitch.

► If a filing angle of 30° has not been main‐

tained: Resharpen the saw chain.

► If you have any queries: Contact your STIHL

servicing dealer for assistance.

10.4 Testing the Chain Brake

► Shut off the engine and engage the chain

brake.

WARNING

■ The chain's cutters are very sharp. There is a risk of cut injuries. ► Wear work gloves made of durable mate‐

rial.

► Try to pull the chain along the guide bar by

hand. If the chain cannot be pulled along the bar by hand, the chain brake is functioning.

► If the chain can be pulled along the bar by

hand: Do not use your chainsaw and contact your STIHL servicing dealer for assistance. The chain brake is defective.

10.5 Checking the Controls

Throttle trigger lockout and throttle trigger ► Shut off the engine and engage the chain

brake.

► Attempt to pull the trigger without depressing

the lockout lever.

► If the trigger can be pulled: Do not use your

chainsaw and contact your STIHL servicing dealer for assistance. There is a malfunction in the throttle trigger lockout.

► Press down the throttle trigger lockout and

hold it there.

► Pull the throttle trigger and release it again. ► If the throttle trigger is stiff or does not spring

back to its idle position: Do not use your chain‐ saw and contact your STIHL servicing dealer for assistance. The throttle trigger is defective.

Stopping the Engine ► Start the engine. ►

Move the Master Control lever to position The engine stops and the Master Control lever

springs back to position

► If the engine does not stop:

► Move the Master Control lever to posi‐

tion The engine stops.

► Do not use your chainsaw and contact your

STIHL servicing dealer for assistance. Your saw has a malfunction.

10.6 Checking Chain Lubrication

► Start the engine and disengage the chain

brake. ► Hold the guide bar over a light surface. ► Open the throttle.

Chain oil is thrown off the chain and is visible

on the light surface. Chain lubrication is oper‐

ating properly. ► If no chain oil can be seen:

► Shut off the engine.

► Fill up with chain oil.

► Check chain lubrication again.

► If chain oil is still not visible on the light sur‐

face: Do not use your chainsaw and contact your STIHL servicing dealer for assistance. Chain lubrication is defective.

11 Operating the Saw

11.1 Winter Operation

The carburetor may ice up when the saw is used at temperatures below +10°C. The shutter must be set to the winter mode so that carburetor is additionally heated by warm air from around the engine.

NOTICE

■ The engine may overheat if the saw is left in

the winter mode at temperatures above

+10°C.

►

Change setting to summer mode.

► Shut off the engine and engage the chain

brake.

► Rotate the shroud fasteners (1) a quarter turn

counterclockwise. ► Remove the shroud (2). ► Pull out the shutter (3).

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English 11 Operating the Saw

► Rotate the shroud fasteners (1) clockwise until

you hear a click.

The shroud fasteners (1) are locked.

11.3 Calibrating the Saw

The chainsaw adjusts itself automatically for opti‐ mum performance during operation. Calibration enables the saw to be adjusted faster for opti‐ mum performance.

► Hold the shutter (3) with the symbol (4) point‐

ing in the direction of the saw.

► Push the shutter (3) into the guide as far as

stop.

You will feel it engage. ► Place the shroud (2) in position. ► Rotate the shroud fasteners (1) clockwise until

► If the outside temperature is below -10°C or

the engine is cold: ► Start the engine and disengage the chain

brake.

► Warm up the engine by opening and closing

the throttle for about 1 minute.

► Shut off the engine.

you hear a click.

The shroud fasteners (1) are locked.

11.2 Summer Operation

The shutter must be set to summer mode when working at temperatures above +10°C. ► Shut off the engine and engage the chain

brake.

►

► Rotate the shroud fasteners (1) a quarter turn

counterclockwise. ► Remove the shroud (2). ► Pull out the shutter (3).

Move the Master Control lever to position ► Engage the chain brake. ► Start the engine without depressing the throttle

trigger.

The engine runs and the Master Control lever

remains in position

► Run the engine for at least 30 seconds but no

more than 60 seconds (A) without depressing

the throttle trigger.

WARNING

■ If the chain brake is disengaged, the chain

may rotate This can result in serious injuries.

► Hold the chainsaw as described in this

instruction manual.

► Do not touch the rotating saw chain.

► Disengage the chain brake.

► Hold the shutter (3) with the symbol (4) point‐

ing in the direction of the saw.

► Push the shutter (3) into the guide as far as

stop. You will feel it engage.

► Place the shroud (2) in position.

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11 Operating the Saw English

► Shut off the engine and engage the chain

NOTICE

■ The calibration process is aborted if the throt‐ tle trigger is released before the saw is prop‐ erly calibrated. It is then necessary to restart the calibration process. ►

Keep the throttle trigger fully depressed.

NOTICE

■ The chainsaw can be incorrectly calibrated if the throttle trigger is not kept fully depressed during calibration. This can damage the saw. ►

Keep the throttle trigger fully depressed.

► Depress the throttle trigger for at least 30

seconds (B) and hold it in that position. The engine accelerates and the chain rotates. Calibration of the saw takes place. Engine speed varies noticeably during calibration.

► If the engine stalls: Make another attempt to

calibrate the saw.

► If the engine keeps stalling:

► Engage the chain brake. ► Do not use your chainsaw and contact your

STIHL servicing dealer for assistance. Your saw has a malfunction.

► As soon as the engine speed drops noticeably

(C): Release the throttle trigger. The engine runs at idling speed. Your saw is calibrated and ready for operation.

brake.

► Turn the oil pump adjusting screw (1) clock‐

wise.

To increase oil feed rate still further ► Shut off the engine and engage the chain

brake.

► Use a suitable tool to depress the stop (2).

The stop (2) remains permanently depressed.

NOTICE

■ The oil tank will be drained at a faster rate if the oil pump adjusting screw (1) is in the ‘A’ segment. The point where the saw chain is no longer being lubricated properly will be reached sooner. ►

Fill the oil tank to maximum.

► Move the oil pump adjusting screw away

from the ‘A’ segment when the increased oil flow rate is no longer required.

►

Turn the oil pump adjusting screw (1) clock‐ wise.

To reduce oil feed rate ► Shut off the engine and engage the chain

brake.

► Turn the oil pump adjusting screw (1) counter‐

clockwise.

11.5 Holding and Controlling the

Chainsaw

11.4 Adjusting Oil Feed Rate

The chainsaw has an adjustable oil pump.

► Hold and control your chainsaw with your left

hand on the handlebar and your right hand on the control handle. Wrap thumb of left hand

The oil feed rate is suitable for most applications when the oil pump adjusting screw (1) is in posi‐

around the handlebar and thumb of right hand around the control handle.

tion E (Ematic).

The oil pump feed rate can be adjusted to suit different bar lengths, wood species and working techniques. The range of adjustment of the oil pump adjusting screw (1) is limited by a stop (2). The stop (2) can be depressed in order to further increase the oil feed rate.

To increase oil feed rate

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English 11 Operating the Saw

11.6 Sawing

WARNING

■ If kickback occurs, the chainsaw can be thrown up in the direction of the operator. This may result in serious or fatal injury to the user. ►

Always cut with the chain running at full speed.

► Do not cut with the upper quadrant of the

guide bar nose.

► Begin the cut with the chain running at full

speed and keep the guide bar vertical.

► If the limb is under tension: Make the relieving

cut (1) at the compression side and then per‐ form the bucking cut (2) from the tension side.

11.8 Felling

► Engage the spiked bumper and use it as a ful‐

crum.

► Guide the full width of the guide bar into the

wood and reposition the spiked bumper as required.

► Take the weight of the chainsaw at the end of

the cut.

11.7 Limbing

► Support the chainsaw on the log. ► With the chain running a full speed, pivot the

guide bar downward against the limb.

► Cut through the limb with the top of the guide

bar.

11.8.1 Determining direction of fall and

► Determine direction of fall so that the area in

► Observe the following points when planning

11.8.2 Preparing work area at base of tree ► Remove obstacles from work area at tree

► Remove growth from tree base.

escape path

which the tree falls is clear.

escape path (B):

Escape path (B) at an angle of 45° to direc‐

–

tion of fall (A). No obstacles on the escape path (B).

–

The top of the tree can be observed.

–

If the escape path (B) is on a slope, it must

–

be parallel to the slope.

base.

► If the tree has large, healthy buttress roots:

20 0458-790-0121-C

Make vertical cut first and then a horizontal cut, and remove the resulting piece.

1/10

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11 Operating the Saw English

11.8.3 Basic information on felling cut

► If the wood is sound and long-fibered:

C Felling notch

The felling notch determines the direction of fall.

D Hinge

The hinge helps control the falling tree. The width of the hinge is 1/10 of the trunk diame‐ ter.

E Felling cut

The tree is felled with the felling cut. The fell‐ ing cut is 1/10 of the trunk diameter (at least 3

Observe the following points when making sapwood cuts:

The cuts must be the same at both sides.

–

The cuts must be at same height as bottom

–

of felling notch. The width of the cuts is 1/10 of the trunk

–

diameter.

The trunk does not splinter when the tree falls.

11.8.5 Plunge cutting

Plunge cutting is a technique required for felling.

cm) above the bottom of the felling notch.

F Stabilizing strap

The stabilizing strap supports the tree and helps prevent it from falling prematurely. The width of the stabilizing strap is 1/10 to 1/5 of the trunk diameter.

G Holding strap

The holding strap supports the tree and helps prevent it from falling prematurely. The width of the holding strap is 1/10 to 1/5 of the trunk diameter.

11.8.4 Cutting the felling notch

The felling notch determines the direction in which the tree falls. Country-specific standards for making the felling notch must be observed.

► Begin cut with the lower portion of the guide

bar nose – with chain running at full speed.

► Cut until depth of kerf is twice the width of the

guide bar. ► Swing the saw into plunge-cutting position. ► Perform the plunge cut

11.8.6 Selecting the Appropriate Felling Cut The choice of appropriate felling cut depends on the following conditions:

The natural inclination of the tree

–

The tree’s branch formation

–

Damage to the tree

–

The tree’s state of health

–

If there is snow on the tree: the snow load

–

The direction of slope

–

Wind direction and speed

► Position the saw so that the felling notch is an

right angles to the direction of fall and the saw

is close to the ground. ► Make the horizontal cut. ► Make the angle cut at 45° to the horizontal cut.

–

Nearby trees, if any

–

There are different features of these conditions. Only two features are described in this Instruc‐ tion Manual.

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English 11 Operating the Saw

► With outstretched arms, cut through the stabi‐

lizing strap horizontally from outside at the same level as the felling cut. The tree falls.

11.8.8 Felling normal, large diameter tree

A normal tree is felled with a felling cut and stabi‐ lizing strap. This felling cut must be performed if the tree diameter is greater than the guide bar’s length.

1 Normal tree

► Shout a warning.

A normal tree is vertical and has an even crown.

2 Leaner

A leaner stands at an angle and the crown faces in the direction of fall.

11.8.7 Felling normal, small diameter tree

A normal tree is felled with a felling cut and stabi‐ lizing strap. This felling cut must be performed if the tree diameter is less than the guide bar’s length. ► Shout a warning.

► Apply the spiked bumper at the same height

as the felling cut and use it as a pivot.

► Hold the saw horizontally and swing it into the

felling cut as far as possible. ► Enlarge felling cut in direction of hinge. ► Enlarge felling cut in direction of stabilizing

strap. ► Move to the other side of the tree. ► Plunge the guide bar into the felling cut at the

same height. ► Enlarge felling cut in direction of hinge. ► Enlarge felling cut in direction of stabilizing

► Plunge the guide bar into the felling cut until it

is visible at the other side of the trunk,

strap.

11.8.5.

► Apply the spiked bumper behind the hinge and

use it as a pivot. ► Enlarge felling cut in direction of hinge. ► Enlarge felling cut in direction of stabilizing

strap.

► Insert a felling wedge. The felling wedge must

match the tree diameter and the width of the

felling cut. ► Shout a warning. ► With outstretched arms, cut through the stabi‐

lizing strap horizontally from outside at the

same level as the felling cut.

► Insert a felling wedge. The felling wedge must

match the tree diameter and the width of the felling cut.

► Shout a warning.

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The tree falls.

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12 After Finishing Work English

11.8.9 Felling a small diameter leaner

A leaner is felled with a felling cut and holding strap. This felling cut must be performed if the tree diameter is less than the guide bar’s length. ► Shout a warning.

► Enlarge felling cut in direction of hinge. ► Enlarge felling cut in direction of holding strap. ► Move to the other side of the tree. ► Apply the spiked bumper behind the hinge at

the same height as the felling cut and use it as

a pivot. ► Hold the saw horizontally and swing it into the

felling cut as far as possible. ► Enlarge felling cut in direction of hinge. ► Enlarge felling cut in direction of holding strap.

► Plunge the guide bar into the felling cut until it

is visible at the other side of the trunk,

11.8.5. ► Enlarge felling cut in direction of hinge. ► Enlarge felling cut in direction of holding strap.

► Shout a warning. ► With arms outstretched, cut through the hold‐

ing strap from outside at a downward angle. The tree falls.

12 After Finishing Work

12.1 After Finishing Work

► Shut off the engine and engage the chain

brake.

► Shout a warning. ► With arms outstretched, cut through the hold‐

ing strap from outside at a downward angle. The tree falls.

11.8.10 Felling a large diameter leaner

A leaner is felled with a felling cut and holding strap. This felling cut must be performed if the tree diameter is greater than the guide bar’s length. ► Shout a warning.

► Allow chainsaw to cool down. ► If the saw is wet: Allow the saw to dry. ► Clean the saw. ► Clean the bar and chain. ► Loosen nuts on the chain sprocket cover. ► Turn the tensioning screw two full turns coun‐

terclockwise. The chain is now slack.

► Tighten down nuts on the chain sprocket

cover.

► Fit the scabbard so that it completely covers

the guide bar.

13 Transporting

13.1 Transporting the Chainsaw

► Shut off the engine and engage the chain

brake.

► Fit the chain scabbard so that it completely

covers the guide bar.

► Apply the spiked bumper behind the holding

strap at the same height as the felling cut and use it as a pivot.

► Hold the saw horizontally and swing it into the

felling cut as far as possible.

0458-790-0121-C 23

Carrying the chainsaw ► Carry the chainsaw by holding the front handle

in your right hand with the guide bar pointing to the rear.

0000-GXX-2939-A0

0000-GXX-2951-A0

0000-GXX-2952-A0

English 14 Storing

Carrying the chainsaw in a vehicle ► Secure the saw to prevent tipping over and

movement.

14 Storing

14.1 Storing the Chainsaw

► Shut off the engine and engage the chain

brake.

► Fit the chain scabbard so that it completely

covers the guide bar.

► Observe the following points when storing the

chainsaw:

Chainsaw is out of reach of children.

–

The chainsaw is clean and dry.

–

► If you store the chainsaw for more than 30

days: ► Remove the guide bar and saw chain. ► Open the fuel tank cap. ► Drain the fuel tank. ► Close the fuel tank. ► If a manual fuel pump is fitted: Press the

manual fuel pump at least 5 times.

► Start the engine and run it at idling speed

until it stops.

► Rotate the shroud fasteners (1) clockwise until

you hear a click. The shroud fasteners are locked.

► Fit the chain sprocket cover.

15.2 Cleaning the Bar and Chain

► Shut off the engine and engage the chain

brake.

► Remove the bar and chain.

► Clean the oil port (1), oil inlet hole (2) and bar

groove (3) with a soft brush or STIHL resin solvent.

► Clean the saw chain with a soft brush or

STIHL resin solvent.

► Mount the bar and chain.

15.3 Cleaning the Air Filter

15 Cleaning

15.1 Cleaning the Saw

► Shut off the engine and engage the chain

brake. ► Allow chainsaw to cool down ► Clean the saw with a damp cloth or STIHL

resin solvent. ► Clean cooling air slots with a soft brush.

Very fine dust can collect in the air filter. The dust can clog the filter and cannot be removed by brushing or knocking out. The air filter must be cleaned with a cleaning agent. ► Shut off the engine and engage the chain

brake.

► Rotate the shroud fasteners (1) a quarter turn

counterclockwise.

► Rotate the shroud fasteners (1) a quarter turn

counterclockwise. ► Remove the shroud (2). ► Remove the chain sprocket cover. ► Use a soft brush, damp cloth or STIHL resin

solvent to clean the cylinder funs and the

► Clean the area around the sprocket with a

► Place the shroud (2) in position.

24 0458-790-0121-C

inside of the shroud.

damp cloth or STIHL resin solvent.

► Remove the shroud (2). ► Clean the area around the air filter (3) with a

damp cloth or a soft brush.

► Rotate the air filter (3) a quarter turn counter‐

clockwise by hand. ► Remove the air filter (3). ► Rinse away coarse dirt from the outside of the

filter (3) under running water. ► If the air filter (3) is damaged. Install a new air

filter (3).

0000-GXX-3808-A0

0000-GXX-3809-A0

0000-GXX-5806-A0

16 Maintenance English

WARNING

■ Cleaning agent may cause irritation if it con‐ tacts the skin or eyes. ► Observe the information supplied with the

cleaning agent. ► Avoid contact with cleaning agents. ► In case of contact with the skin: Wash

affected areas with plenty of water and

soap. ►

In case of contact with the eyes: Rinse eyes

with plenty of water for at least 15 minutes

and seek medical advice.

►

Spray the outside and inside of the air filter (3) with STIHL special cleaner or a cleaning agent with a pH value higher than 12.

► Allow STIHL special cleaner or cleaning agent

to act for 10 minutes.

► Use a soft brush to clean the outside of the air

filter (3).

► Rinse the outside and inside of the air filter (3)

under running water.

► Allow air filter (3) to dry in the air.

► Push the air filter (3) into place by hand and

rotate it clockwise until it engages in position. The “STIHL” logo is horizontal.

► Place the shroud (2) in position. ► Rotate the shroud fasteners (1) clockwise until

you hear a click. The shroud fasteners (1) are locked.

15.4 Cleaning the spark plug

► Shut off the engine and engage the chain

brake.

► Allow the chainsaw to cool down.

► Turn the shroud locks (1) a quarter-turn coun‐

terclockwise. ► Remove shroud (2). ► Pull off the spark plug boot (3). ► If the area around the spark plug is soiled:

Clean it with a cloth. ► Unscrew the spark plug. ► Clean the spark plug with a cloth. ► If the spark plug is corroded: Replace the

spark plug.

► Insert and tighten down the spark plug. ► Press the spark plug boot (3) firmly home. ► Fit the shroud (2). ► Turn the shroud locks (1) a quarter-turn clock‐

wise.

The shroud locks are locked.

16 Maintenance

16.1 Maintenance Intervals

The maintenance intervals are dependent on the environmental and operating conditions. STIHL recommends the following maintenance inter‐ vals:

Chain brake ► Have the chain brake serviced by a STIHL

servicing dealer at the following intervals:

Full-time usage: every 3 months

–

Part-time usage: every 6 months

–

Occasional usage: every 12 months

–

After every 100 hours of operation ► Install a new spark plug.

Weekly ► Check the chain sprocket. ► Check and deburr the guide bar. ► Check and sharpen the saw chain.

Monthly ► Clean the air filter. ► Have oil tank cleaned by a STIHL servicing

dealer. ► Have fuel tank cleaned by a STIHL servicing

dealer.

0458-790-0121-C 25

0000-GXX-1219-A0

0000-GXX-1220-A1

English 17 Repairing

► Have pickup body (filter) in fuel tank cleaned

by a STIHL servicing dealer.

Every 12 months ► Have pickup body (filter) in fuel tank replaced

by a STIHL servicing dealer.

16.2 Deburring the Guide Bar

A burr can build up on the outer edge of the guide bar. ► Remove burr with a flat file or a STIHL guide

bar dressing tool.

► If you have any queries: Contact your STIHL

servicing dealer.

► File each cutter with a round file so that the

following points are observed:

Round file matches the chain pitch.

–

File from the inside to the outside of the cut‐

–

ter. Hold the file at right angle to the guide bar.

–

Maintain a filing angle of 30°.

–

16.3 Sharpening the Saw Chain

Correctly sharpening saw chains requires a lot of practice.

STIHL files, STIHL filing aids, STIHL sharpeners and the brochure “Sharpening STIHL Saw Chains” help you achieve the right results. To obtain the brochure visit http://www.stihl.com/ sharpening-brochure.

STIHL recommends you have saw chains resharpened by a STIHL servicing dealer.

► File down the depth gauges with a flat file so

that they are level with the STIHL filing gauge

and parallel to the service mark. The STIHL fil‐

ing gauge must match the chain pitch. ► If you have any queries: Contact your STIHL

servicing dealer for assistance.

17 Repairing

17.1 Repairing the Chain Saw,

WARNING

■ The chain's cutters are very sharp. There is a risk of cut injuries. ► Wear work gloves made of durable mate‐

rial.

The chain saw, guide bar and saw chain cannot be repaired by the user. ► If the saw, guide bar or saw chain is damaged:

Guide Bar and Saw Chain

Do not use your saw, guide bar or saw chain, and contact your STIHL servicing dealer.

18 Troubleshooting

18.1 Troubleshooting Chainsaw

Most malfunctions have the same causes. ► Perform the following operations:

► Clean the air filter. ► Clean or replace the spark plug. ► Adjust saw for winter or summer operation.

► If the malfunction still exists: Take the action described in the following table.

Condition Cause Remedy Engine does not

start.

26 0458-790-0121-C

Insufficient fuel in the tank.

► Mix fuel and refuel the chainsaw.

0000-GXX-3809-A0

18 Troubleshooting English

Condition Cause Remedy

Engine is flooded. ► Clear the combustion chamber. Carburetor is too hot. ► Allow chainsaw to cool down. Carburetor is iced up. ► Allow saw to warm up to +10°C.

Engine idles errati‐

Carburetor is iced up. ► Allow saw to warm up to +10°C.

cally. Engine stops while

Carburetor is iced up. ► Allow saw to warm up to +10°C.

idling Poor acceleration The chain is over-ten‐

► Tension chain properly.

sioned. Chain lubrication sys‐

► Increase oil feed rate. tem is supplying insufficient chain oil.

Engine does not reach maximum RPM.

Saw chain does not rotate when throttle is opened.

Saw is not correctly tuned to ambient con‐ ditions.

The chain brake is engaged.

The chain is over-ten‐

► Calibrate the saw.

► Disengage the chain brake.

► Tension chain properly. sioned.

Bar nose sprocket is

► Clean the bar nose sprocket with STIHL resin solvent. blocked.

Smoke or burning smell while cutting.

Chain is not properly sharpened.

Insufficient chain oil

► Sharpen the chain properly.

► Fill up with chain oil. in the tank.

Chain lubrication sys‐

► Increase oil feed rate. tem is supplying insufficient chain oil.

The chain is over-ten‐

► Tension chain properly. sioned.

Chainsaw is not

► Have correct use explained, then practice. being used properly.

18.2 Clearing the Combustion Chamber

► Engage the chain brake.

WARNING

■ Unconfined sparks may occur if the starter grip is pulled after the spark plug boot has been removed. Sparks may cause a fire or an explosion in an easily combustible or explo‐ sive environment. This can result in serious or fatal injuries and damage to property. ►

Move the Master Control lever to posi‐

and hold it there before pulling the

tion starter grip.

►

Move the Master Control lever to position

► Rotate the shroud fasteners (1) a quarter turn

counterclockwise. ► Remove the shroud (2). ► Pull off the spark plug boot (3). ► Unscrew the spark plug. ► Dry the spark plug.

and hold it there.

► Pull the starter grip (3) and guide it back sev‐

eral times. The combustion chamber is cleared.

► Insert and tighten down the spark plug.

0458-790-0121-C 27

0000-GXX-5806-A0

English 19 Specifications

3/8": 6 mm

–

19.4 Noise and Vibration Data

Sound pressure level Lp measured according

–

to ISO 22868: 108 dB(A) K-value for noise pressure level is 2 dB(A). Sound power level Lw measured according to

–

ISO 22868: 119 dB(A) K-value for sound power level is 2 dB(A). Vibration level ahv measured according to

► Connect the spark plug boot (3) and press it

down firmly. ► Place the shroud (2) in position. ► Rotate the shroud fasteners (1) clockwise until

you hear a click.

The shroud fasteners are locked.

19 Specifications

19.1 STIHL MS 462 C-M Chainsaw

Displacement: 72.2 cc

–

Engine power to ISO 7293: 4.4 kW (6 bhp)

–

Idle speed to ISO 11681: 2,800 ± 50 rpm

–

Approved spark plug: NGK CMR6H from

–

STIHL

Electrode gap: 0.5 mm

–

Dry weight without guide bar and chain

MS 462 C‑M: 6.0 kg

•

MS 462 C‑M with handle and carburetor

•

heating: 6.1 kg

Max. fuel tank capacity: 720 cc (0.72 l)

–

Max. oil tank capacity: 340 cc (0.34 l)

–

19.2 Chain Sprockets and Chain

Speeds

The following chain sprockets may be used:

7-tooth for 3/8"

Maximum chain speed according to

•

ISO 11681: 28.9 m/s

Chain speed at maximum power: 21.7 m/s

•

19.3 Minimum Groove Depth of

Guide Bars

The minimum groove depth depends on the pitch of the guide bar.

–

ISO 22867:

Front handle (handlebar): 4.8 m/s² K-value

•

for vibration level is 2 m/s².

Rear handle: 3.6 m/s² K-value for vibration

•

level is 2 m/s².

For further details on compliance with Vibration Directive 2002/44/EC visit www.stihl.com/vib

19.5 REACH

REACH is an EC regulation and stands for the Registration, Evaluation, Authorisation and Restriction of Chemical substances.

For information on compliance with the REACH regulation see www.stihl.com/reach.

19.6 Exhaust Emissions

The CO2 value measured in the EU type appro‐ val procedure is specified at www.stihl.com/co2

in the product-specific technical data.

The measured CO2 value was determined on a representative engine in accordance with a

standardised test procedure under laboratory conditions and does not represent either an explicit or implied guarantee of the performance of a specific engine.

The applicable exhaust emission requirements are fulfilled by the intended usage and mainte‐ nance described in this instruction manual. The type approval expires if the engine is modified in any way.

20 Bar and Chain Combinations

20.1 STIHL MS 462 Chainsaw

Pitch Drive link

gauge/groove width

3/8” 1.6 mm

28 0458-790-0121-C

Length Guide bar Nose

40 cm

Rollomatic E

Rollomatic ES

sprocket teeth

Number of drive links

11 60

Saw chain

36 RS (Type

3621)

21 Spare Parts and Accessories English

Pitch Drive link

gauge/groove width

The cutting length of a guide bar depends on the chainsaw and the saw chain being used. Actual cut‐ ting length may be less than the specified length

21 Spare Parts and Accesso‐

ries

21.1 Spare parts and accessories

These symbols indicate original STIHL spare parts and original STIHL acces‐ sories.

STIHL recommends the use of original STIHL spare parts and accessories.

Despite ongoing market observation, STIHL is unable to judge the reliability, safety and suitabil‐ ity of other manufacturers' spare parts and accessories; accordingly, STIHL cannot warrant for the use of those parts.

Original STIHL spare parts and original STIHL accessories are available from STIHL dealers.

22 Disposal

22.1 Disposing of Chainsaw

Contact the local authorities or your STIHL dealer for information on disposal.

Improper disposal can be harmful to health and pollute the environment. ► Take STIHL products including packaging to a

suitable collection point for recycling in accord‐

ance with local regulations. ► Do not dispose with domestic waste.

Length Guide bar Nose

45 cm

50 cm

55 cm Rollomatic ES 11 76

63 cm

71 cm

75 cm Rollomatic ES 11 98

Rollomatic E

Rollomatic ES

Rollomatic E Rollomatic ES Rollomatic ES

Light

Duromatic E -

Rollomatic E Rollomatic ES Rollomatic ES

Light Rollomatic ES Rollomatic ES

Light

sprocket teeth

11 66

11 84

11 91

Number of drive links

23 EC Declaration of Con‐

formity

23.1 STIHL MS 462 C-M Chainsaw

ANDREAS STIHL AG & Co. KG Badstraße 115 D-71336 Waiblingen

Germany

declares under our sole responsibility that

Category: chainsaw

–

Manufacturer's brand: STIHL

–

Type: MS 462 C‑M, MS 462 C‑M VW

–

Serial number: 1142

–

Displacement: 72.2 cm³

–

conforms to the relevant provisions of Directives 2011/65/EU, 2006/42/EC, 2014/30/EU and 2000/14/EC and has been developed and manu‐ factured in compliance with the following stand‐ ards in the versions valid on the date of produc‐ tion: EN ISO 11681‑1, EN 55012 and EN 61000‑6‑1.

The EC type examination pursuant to Directive 2006/42/EC Art. 12.3(b) was carried out by DPLF, Deutsche Prüf- und Zertifizierungsstelle für Land- und Forsttechnik GbR (NB 0363), Spremberger Straße 1, 64823 Groß‑Umstadt, Germany

Certification number K-EG -2016/7987

–

Saw chain

36 RS3 (Type

3626)

36 RM (Type

3652)

0458-790-0121-C 29

English 24 UKCA Declaration of Conformity

The measured and guaranteed sound power lev‐ els were determined according to Directive 2000/14/EC, Annex V, using the ISO 9207 standard.

Measured sound power level: 119 dB(A)

–

Guaranteed sound power level: 121 dB(A)

–

The technical documents are stored at ANDREAS STIHL AG & Co. KG Produktzulas‐ sung.

The year of manufacture and serial number are applied to the chainsaw.

Done at Waiblingen, 03.02.2020

ANDREAS STIHL AG & Co. KG

Dr. Jürgen Hoffmann, Director Product Certifica‐ tion & Regulatory Affairs

The type examination was carried out by: Inter‐ tek Testing & Certification Ltd, Academy Place, 1-9 Brook Street, Brentwood, Essex, CM14 5NQ, United Kingdom

Certification number: ITS UK MCR 17

–

The measured and guaranteed sound power lev‐ els have been determined in accordance with the UK regulation Noise Emission in the Environ‐ ment by Equipment for use Outdoors Regula‐ tions 2001 Schedule 8, using the ISO 9207 standard.

Measured sound power level: 119 dB(A)

–

Guaranteed sound power level: 121 dB(A)

–

The technical documents are stored at ANDREAS STIHL AG & Co. KG.

The year of manufacture and serial number are indicated on the chainsaw.

Waiblingen, 31.03.2022

ANDREAS STIHL AG & Co. KG

24 UKCA Declaration of Con‐

formity

24.1 STIHL MS 462 C-M Chainsaw

Dr. Jürgen Hoffmann, Director Product Certifica‐ tion & Regulatory Affairs

ANDREAS STIHL AG & Co. KG Badstraße 115 D-71336 Waiblingen

Germany

declares under our sole responsibility that

Category: chainsaw

–

Manufacturer's brand: STIHL

–

Model: MS 462 C-M

–

Serial number: 1142

–

Displacement: 72.2 cm³

–

conforms to the relevant provisions of UK regula‐ tions The Restriction of the Use of Certain Haz‐ ardous Substances in Electrical and Electronic Equipment Regulations 2012, Supply of Machi‐ nery (Safety) Regulations 2008, Electromagnetic Compatibility Regulations 2016 and Noise Emis‐ sion in the Environment by Equipment for use Outdoors Regulations 2001 and has been manu‐ factured in compliance with the following stand‐ ards in the versions valid on the date of produc‐ tion: EN ISO 11681‑1, EN 55012 and EN 61000‑6‑1.

30 0458-790-0121-C

24 UKCA Declaration of Conformity English

0458-790-0121-C 31

www.stihl.com

*04587900121C*

0458-790-0121-C

*04587900121C*

0458-790-0121-C

Stihl MS 462 C-M Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Introduction

2 Guide to Using this Manual

2.1 Symbols used with warnings in the text

2.2 Symbols in Text

3 Overview

3.1 Chainsaw

3.2 Features

3.3 Symbols

English 4 Safety Precautions

4.3 The Operator

4.1 Warning Signs

4.2 Intended Use

4.4 Clothing and Equipment

4.5 Work Area and Surroundings

4.6 Safe Condition

4.7 Fuel Mixture and Refueling

4.8 Working

4.9 Reactive Forces

4.11 Storing

4.10 Transport

5 Preparing the Saw for Operation English

6 Assembling the Saw

6.2 Tensioning the Saw Chain

6.3 Filling Up with Chain Oil

7 Engaging and Disengaging the Chain Brake English

6.4 Mounting the Spiked Bumper

7.2 Disengaging the Chain Brake

8.1 Mixing fuel

7.1 Engaging the Chain Brake

9 Starting and Stopping the Engine English

9.1 Starting the Engine

English 10 Checking the Saw

9.2 Shut off the engine.

10.3 Checking the Saw Chain

10.1 Checking the Chain Sprocket

10.2 Checking the Guide Bar

11 Operating the Saw English

10.4 Testing the Chain Brake

10.5 Checking the Controls

10.6 Checking Chain Lubrication

11.1 Winter Operation

11.3 Calibrating the Saw

11.2 Summer Operation

11.4 Adjusting Oil Feed Rate

11.6 Sawing

11.8 Felling

11.7 Limbing

12 After Finishing Work English

12.1 After Finishing Work

13 Transporting

13.1 Transporting the Chainsaw

English 14 Storing

14.1 Storing the Chainsaw

15.2 Cleaning the Bar and Chain

15.3 Cleaning the Air Filter

15 Cleaning

15.1 Cleaning the Saw

16 Maintenance English

15.4 Cleaning the spark plug

16.1 Maintenance Intervals

English 17 Repairing

16.2 Deburring the Guide Bar

16.3 Sharpening the Saw Chain

18 Troubleshooting

18.1 Troubleshooting Chainsaw

18.2 Clearing the Combustion Chamber

English 19 Specifications

19.4 Noise and Vibration Data

19.1 STIHL MS 462 C-M Chainsaw

19.5 REACH

19.6 Exhaust Emissions

20 Bar and Chain Combinations

20.1 STIHL MS 462 Chainsaw

21 Spare Parts and Accessories English

21.1 Spare parts and accessories

22 Disposal