Homelite UT10584, UT10564, UT10566, UT10586, UT10546 User Manual

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OPERATOR’S MANUAL

MANUEL D’UTILISATION

MANUAL DEL OPERADOR

UT10544, UT10546 / 14 in. 35cc Chain Saw

Scie à chaîne de 35 cc de 356 mm (14 po) Motosierra de 35 cm (14 pulg.), 35 cc

UT10564, UT10566 / 16 in. 38cc Chain Saw

Scie à chaîne de 38 cc de 406 mm (16 po) Motosierra de 40 cm (16 pulg.), 38 cc

UT10584, UT10586 / 18 in. 42cc Chain Saw

Scie à chaîne de 42 cc de 457 mm (18 po) Motosierra de 45 cm (18 pulg.), 42 cc

(ALL VERSIONS)

(TOUTES LES VERSIONS)

(TODAS LAS VERSIONES)

ENGINE/EVAP. FAMILY: *HCPS.0424BD

FAMILLE DE MOTEUR/ÉVAPORATEUR : *HCPS.0424BD

FAMILIA DE MOTOR/EVAPORADOR: *HCPS.0424BD

Your chain saw has been engineered and manufactured to Homelite’s high standard for dependability, ease of operation, and operator safety. When properly cared for, it will give you years of rugged, trouble-free performance.

WARNING: To reduce the risk of injury, the user must read and understand the operator’s manual before using this product.

Thank you for buying a Homelite product.

SAVE THIS MANUAL FOR FUTURE REFERENCE

Cette scie à chaîne a été conçue et fabriquée conformément aux strictesnormesdefiabilité,simplicitéd’emploietsécuritéd’utilisation de Homelite. Correctement entretenue, elle vous donnera des années de fonctionnement robuste et sans problème.

AVERTISSEMENT : Pour réduire les risques de blessures, l’utilisateur doit lire et veiller à bien comprendre le manuel d’utilisation avant d’employer ce produit.

Merci d’avoir acheté un produit Homelite.

Su motosierra ha sido diseñada y fabricada de conformidad con las estrictas normas de Homelite para brindar fiabilidad, facilidad de uso y seguridad para el operador. Con el debido cuidado, le brindará muchos años de sólido y eficiente funcionamiento.

ADVERTENCIA: Para reducir el riesgo de lesiones, el usuario debe leer y comprender el manual del operador antes de usar este producto.

Le agradecemos la compra de un producto Homelite.

CONSERVER CE MANUEL POUR

 

GUARDE ESTE MANUAL PARA

FUTURE RÉFÉRENCE

 

FUTURAS CONSULTAS

 

 

 

TABLE OF CONTENTS

 

TABLE DES MATIÈRES / ÍNDICE DE CONTENIDO

Introduction........................................................................................................................................

2

Introduction / Introducción

 

General Safety Rules.....................................................................................................................

3-4

Règles de sécurité générales / Reglas de seguridad generales

 

Specific Safety Rules.....................................................................................................................

4-5

Règles de sécurité particulières / Reglas de seguridad específicas

 

Symbols.........................................................................................................................................

6-7

Symboles / Símbolos

 

Glossary of Terms..............................................................................................................................

8

Glossaire / Glosario de términos

 

Features.......................................................................................................................................

9-10

Caractéristiques / Características

 

Assembly.........................................................................................................................................

11

Assemblage / Armado

 

Operation...................................................................................................................................

11-24

Utilisation / Funcionamiento

 

Maintenance..............................................................................................................................

25-37

Entretien / Mantenimiento

 

Bar and Chain Combinations...........................................................................................................

38

Vue éclatée et liste des pièces / Vista desarrollada y lista de piezas

 

Troubleshooting.........................................................................................................................

38-39

Dépannage / Corrección de problemas

 

Warranty.....................................................................................................................................

40-42

Garantie / Garantía

 

Parts Ordering and Service................................................................................................

Back Page

Commande de pièces et réparation / Pedidos de piezas y servicio..........................................................

Page arrière / Pág. posterior

INTRODUCTION

 

INTRODUCTION / INTRODUCCIÓN

 

This product has many features for making its use more pleasant and enjoyable. Safety, performance, and dependability have been given top priority in the design of this product making it easy to maintain and operate.

* * *

Ce produit offre de nombreuses fonctions destinées à rendre son utilisation plus plaisante et satisfaisante. Lors de la conception de ce produit, l’accent a été mis sur la sécurité, les performances et la fiabilité, afin d’en faire un outil facile à utiliser et à entretenir.

* * *

Este producto ofrece numerosas características para hacer más agradable y placentero su uso. En el diseño de este producto se ha conferido prioridad a la seguridad, el desempeño y la fiabilidad, por lo cual se facilita su manejo y mantenimiento.

Page / Página 2

GENERAL SAFETY RULES

WARNING:

Read and understand all instructions. Failure to follow all instructions listed below, may result in electric shock, fire and/or serious personal injury.

READ ALL INSTRUCTIONS

Know your tool. Read the operator’s manual carefully. Learn the saw’s applications and limitations as well as the specific potential hazards related to this tool.

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 toward the operator. Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back toward the operator. Either of these reactions may cause you to lose control of the saw, which could result in serious personal injury. Do not rely exclusively upon the safety devices built into the saw. As a chain saw user, you should take several steps to keep your cutting jobs free from accident or injury.

With a basic understanding of kickback, you can reduce or eliminate the element of surprise. Sudden surprise contributes to accidents.

Keep a good firm grip on the saw with both hands when the engine is running. Place your right hand on the rear handle and your left hand on the front handle with your thumbs and fingers encircling the chain saw handles. A firm grip together with a stiff left arm will help you maintain control of the saw if kickback occurs.

Make sure that the area in which you are cutting is free from obstructions. DO NOT let the nose of the guide bar contact a log, branch, fence, or any other obstruction that could be hit while you are operating the saw.

Cut at high engine speeds. Always cut with the engine running at full speed. Fully

squeeze the throttle trigger and maintain a steady cutting speed.

Do not overreach or cut above chest height.

Follow the manufacturer’s sharpening and maintenance instructions for the saw chain.

Only use replacement bars and chains specified by the manufacturer or the equivalent.

Do not operate a chain saw with one hand. Serious injury to the operator, helpers, bystanders, or any combination of these persons may result from one-handed operation. A chain saw is intended for two-handed use.

Do not operate a chain saw when you are fatigued. Fatigue causes carelessness. Be more cautious before rest periods and towards the end of your shift. Never operate a chain saw when you are tired or under the influence of medication, drugs, or alcohol.

Use safety footwear. Wear snug-fitting clothing, protective­ gloves, and eye, hearing, and head protection devices.

Heavy protective clothing may increase operator fatigue, which could lead to heat stroke. During weather that is hot and humid, heavy work should be scheduled for early morning or late afternoon hours when temperatures are cooler.

Do not stand on any unstable surface while using the chain saw, that includes ladders, scaffolds, trees, rooftops, etc.

Use caution when handling fuel. Move the chain saw at least 30 feet from the fueling point before starting the engine.

Do not allow other persons to be near the chain saw when starting or cutting with the chain saw. Keep bystanders and animals out of the work area.

Do not start cutting until you have a clear work area, secure footing, and a planned retreat path from the falling tree.

Keep all parts of your body away from the saw chain when the engine is running.

Always carry the chain saw with the engine stopped and the chain brake engaged, the

Page 3 — English

GENERAL SAFETY RULES

guide bar and saw chain to the rear, and the muffler away from your body. When transporting the chain saw, use the appropriate guide bar scabbard.

Do not operate a chain saw that is damaged, improperly adjusted, or not completely and securely assembled. Be sure that the saw chain stops moving when the throttle control trigger is released.

Shut off the engine before setting the chain saw down. Do not leave the engine running unattended. As an additional safety precaution, apply the chain brake prior to setting down the saw.

Use extreme caution when cutting small-size brush and saplings because slender material may catch the saw chain and be whipped toward you or pull you off balance.

When cutting a limb that is under tension, be alert for springback so that you will not be struck when the tension in the wood fibers is released.

Keep the handles dry, clean, and free of oil or fuel mixture.

Beware of carbon monoxide poisoning.

Operate the chain saw only in well-ventilated areas.

Do not operate a chain saw in a tree unless you have been specifically trained to do so.

Do not cut from a ladder; this is extremely dangerous.

All chain saw service, other than the items listed in the instruction manual and all maintenance, should be performed by competent chain saw 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 subsequently could cause the flywheel to burst.)

Always have a fire extinguisher available when using chain saw.

Use only the replacement guide bars and low kickback chains specified for the saw.

Do not adapt the powerhead to a bow guide or use it to power any attachments or devices not listed for the saw.

The gas powered saw (or electrically powered saw) is classified by CSA as a Class 1C (or Class 2C) saw. It is intended for infrequent use by homeowners, ­cottagers, and campers, and for such general applications as clearing, pruning, cutting firewood, etc. It is not intended for prolonged use. Prolonged periods of operation can cause circulatory problems in the user’s hands due to vibration. For such use, it may be appropriate to use a saw having an anti-vibration feature.

Save these instructions. Refer to them frequently and use to instruct other users. If you loan someone this product, loan them these instructions also.

SPECIFIC SAFETY RULES

WARNING:

The warnings, labels, and instructions found in this section of the operator’s manual are for your safety. Failure to follow all instructions may result in serious personal injury.

Do not cut vines and/or small underbrush (a diameter of less than 3 in.).

Muffler surfaces are very hot during and after operation of the chain saw; keep all body parts

away from the muffler. Serious burns may occur if contact is made with the muffler.

Always hold the chain saw with both hands when the engine is running. Use a firm grip with thumbs and fingers encircling the chain saw handles.

Never let anyone use the chain saw who has not received adequate instructions in its proper use. This applies to rentals as well as privately owned saws.

Page 4 — English

SPECIFIC SAFETY RULES

Before you start the engine, make sure the saw chain is not contacting any object.

Wear snug-fitting clothing. Always wear heavy, long pants, long sleeves, boots, and gloves. Do not wear jewelry, short pants, sandals, or go barefoot. Do not wear loose fitting clothing, which could be drawn into the engine or catch the chain or underbrush. Wear overalls, jeans, or chaps made of cut-resistant material or ones that contain cut-resistant inserts. Secure hair so that it is above shoulder level.

Wear non-slip safety footwear and heavyduty gloves to improve your grip and to protect your hands.

Wear eye protection with side shields marked to comply with ANSI Z87.1, along with hearing and head protection, when operating this equipment.

Keep bystanders and animals out of the work area. Do not allow other persons to be nearby during starting or cutting with the chain saw.

NOTE: The size of the work area depends on the job being performed as well as the size tree or workpiece involved. For example, felling a tree requires a larger work area than making other cuts (i.e., bucking cuts, etc.).

Keep SAFE-T-TIP® anti-kickback nose guard properly mounted on the guide bar to prevent rotational kickback.

Follow the sharpening and maintenance instructions for the saw chain.

Never operate a chain saw that is damaged, improperly adjusted, or is not completely and securely assembled. Be sure that the saw chain stops moving when the throttle control trigger is released. If the saw chain moves at idle speed, the carburetor may need adjusting. Refer to Adjusting the Carburetor in the

Maintenance section of this manual. If the saw chain still moves at idle speed after adjustment has been made, contact an authorized service center for adjustment and discontinue use until the repair is made.

REFUELING (DO NOT SMOKE!)

To reduce the risk of fire and burn injury, handle fuel with care. It is highly flammable.

Mix and store fuel in a container approved for gasoline.

Mix fuel outdoors where there are no sparks or flames.

Select bare ground, stop the engine, and allow it to cool before refueling.

Loosen the fuel cap slowly to release pressure and to keep fuel from escaping around the cap.

Tighten the fuel cap securely after refueling.

Wipe spilled fuel from the unit. Move 30 feet away from refueling site before starting engine.

Never attempt to burn off spilled fuel under any circumstances.

KICKBACK

Kickback is a dangerous reaction that can lead to serious injury. Do not rely only on the safety devices provided with the saw. As a chain saw user, you must take special safety precautions to help keep your cutting jobs free from accident or injury. See the General Safety Rules and Operation sections of this manual for added information on kickback and how to avoid serious personal injury.

Page 5 — English

SYMBOLS

The following signal words and meanings are intended to explain the levels of risk associated with this product.

SYMBOL

SIGNAL

MEANING

 

DANGER:

Indicates an imminently hazardous situation, which, if not

 

avoided, will result in death or serious injury.

 

 

 

 

 

 

WARNING:

Indicates a potentially hazardous situation, which, if not avoided,

 

could result in death or serious injury.

 

 

 

 

 

 

CAUTION:

Indicates a potentially hazardous situation, which, if not avoided,

 

may result in minor or moderate injury.

 

 

 

 

 

 

CAUTION:

(Without Safety Alert Symbol) Indicates a situation that may

 

result in property damage.

 

 

Page 6 — English

SYMBOLS

Some of the following symbols may be used on this product. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the product better and safer.

SYMBOL

NAME

DESIGNATION/EXPLANATION

 

Safety Alert

Indicates a potential personal injury hazard.

 

 

 

 

To reduce the risk of injury, user must read and

 

 

Read Operator’s Manual

understand operator’s manual before using this

 

 

 

 

product.

 

 

 

Wear Eye and Head

Always wear eye protection with side shields marked

 

 

Protection

to comply with ANSI Z87.1, along with head protection.

 

 

 

 

 

 

 

 

 

 

SAFE-T-TIP Nose Guard

The SAFE-T-TIP nose guard on the guide bar helps

 

 

prevent rotational kickback.

 

 

 

 

 

 

 

 

 

 

 

 

 

No Smoking

No smoking, sparks, or open flame.

 

 

 

 

 

 

 

 

 

Operate With Two Hands

Hold and operate the saw properly with both hands.

 

 

 

 

 

 

 

 

 

One Handed

Do not operate the saw using only one hand.

 

 

 

 

 

 

 

 

 

 

 

Engines produce carbon monoxide which is an

 

 

Carbon Monoxide

odorless, deadly poison. Do not operate in an

 

 

 

 

 

 

enclosed area.

 

 

 

Kickback

DANGER! Beware of kickback.

 

 

 

 

 

 

 

Bar Nose Contact

Avoid bar nose contact.

 

 

 

 

 

 

 

 

Wear Gloves

Wear non-slip, heavy-duty protective gloves when handling

 

 

the chain saw.

 

 

 

 

 

 

 

 

 

 

 

 

Wear Safety Footwear

Wear non-slip safety footwear when using this

 

 

equipment.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use unleaded gasoline intended for motor vehicle

 

 

Gasoline and

use with an ­octane rating of 87 [(R + M)/2] or higher.

 

 

Lubricant

This product is powered by a 2-cycle engine and

 

 

 

 

requires pre-mixing gasoline and 2-cycle lubricant.

 

 

 

 

 

 

 

Keep Bystanders Away

Keep all bystanders and animals at least 50 ft. away.

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 7 — English

 

 

 

 

 

 

 

 

 

 

 

 

GLOSSARY OF TERMS

Bucking

The process of cross cutting a felled tree or log into lengths.

Chain Brake

A device used to stop the saw chain.

Chain Saw Powerhead

A chain saw without the saw chain and guide bar.

Clutch

A mechanism for connecting and disconnecting a driven member to and from a rotating source of power.

Drive Sprocket or Sprocket

The toothed part that drives the saw chain.

Felling

The process of cutting down a tree.

Felling Back Cut

The final cut in a tree felling operation made on the opposite side of the tree from the notching undercut.

Front Hand Guard

A structural barrier between the front handle of a chain saw and the guide bar, typically located close to the hand position on the front handle, and sometimes employed as an activating lever for a chain brake.

Front Handle

The support handle located at or toward the front of the chain saw. This handle is for the left hand.

Guide Bar

A solid railed structure that supports and guides the saw chain.

Kickback

The backward or upward motion, or both, of the guide bar occurring when the saw chain near the nose of the top area of the guide bar contacts any object such as a log or branch, or when the wood closes in and pinches the saw chain in the cut.

Kickback (Pinch)

Therapidpushbackofthesawwhichcanoccurwhen the wood closes in and pinches the moving saw chain in the cut along the top of the guide bar.

Kickback (Rotational)

The rapid upward and backward motion of the saw which can occur when the moving saw chain near the upper portion of the tip of the guide bar contacts an object, such as a log or branch.

Low-Kickback Chain

A chain that complies with the kickback performance requirements of ANSI B175.1 when tested on a representative sample of chain saws.

Normal Cutting Position

Thosepositionsassumedinperformingthebucking and felling cuts.

Notching Undercut

A notch cut in a tree that directs the tree’s fall.

Rear Handle

The support handle located at or toward the rear of the saw. It normally contains the throttle. This handle is for the right hand.

Reduced Kickback Guide Bar

A guide bar which has been demonstrated to reduce kickback significantly.

Replacement Saw Chain

A chain that complies with the kickback performance requirements of ANSI B175.1 when tested with specific chain saws. It may not meet the ANSI performance requirements when used with other saws.

SAFE-T-TIP® Nose Guard

An attachment that may be provided on the end of the guide bar to prevent the chain at the end of the guide bar from contacting the wood.

Saw Chain

A loop of chain having cutting teeth that cut the wood, and that is driven by the motor and is supported by the guide bar.

Springpole

A small tree (sapling) or limb that is bent or trapped under tension. It may “spring back” rapidly when cut, causing a dangerous situation.

Page 8 — English

FEATURES

PRODUCT SPECIFICATIONS

Bar length:

 

UT10544, UT10546

................................. 14 in.

UT10564, UT10566.................................

16 in.

UT10584, UT10586..................................

18 in.

Chain pitch............................................

0.375 in.

Chain gauge..........................................

0.050 in.

Chain type........................

Low Profile Skip Tooth

Drive sprocket..........................................

6-tooth

Engine displacement

....................................

42cc

Engine power.......................................

 

2 HP min.

Idle engine speed.........

2,600 - 3,400 r/min. (RPM)

Fuel tank capacity...................................

 

11.5 oz.

Chain lubricant tank capacity...................

6.5 oz.

Weight - No bar, chain, fuel or lubricant.. 9.8 lbs.

MUFFLER

FRONT HAND GUARD/

CHAIN OIL

CHAIN BRAKE

CAP

 

FRONT

 

CYLINDER HANDLE

 

COVER

 

 

CLUTCH COVER

REAR

 

HANDLE

 

CLUTCH COVER

LOCK KNOB

CHAIN

TENSIONING DIAL

STARTER

GRIP

TRIGGER

RELEASE

THROTTLE

TRIGGER

STARTER ­

HOUSING

SAFE-T-TIP®

Fig. 1a

Page 9 — English

FEATURES

ON/STOP

PRIMER BULB

SWITCH

 

STOP

CHOKE LEVER

FUEL CAP

Fig. 1b

 

KNOW YOUR CHAIN SAW

See Figures 1a - 1b.

The safe use of this product requires an understanding of the information on the product and in this operator’s manual as well as a knowledge of the project you are attempting. Before use of this product, familiarize yourself with all operating features and safety rules.

CHOKE LEVER

The choke lever opens and closes the choke valve in the carburetor. Positions available include FULL

CHOKE and RUN.

FRONT HAND GUARD / CHAIN BRAKE

The chain brake is designed to quickly stop the chain from rotating. When the front hand guard/ chain brake is pushed toward the bar, the chain should stop immediately. The chain brake does not prevent kickback.

GUIDE BAR

The factory-equipped guide bar has a small radius tip that offers a somewhat lower kickback potential.

LOW KICKBACK SAW CHAIN

The low kickback saw chain helps minimize the force of a kickback reaction by preventing the cutters from digging in too deeply at the kickback zone.

PRIMER BULB

The primer bulb pumps fuel from the fuel tank to the carburetor­.

SAFE-T-TIP® ANTI-KICKBACK NOSE GUARD

The SAFE-T-TIP® Anti-Kickback Nose Guard is an attachment provided on the end of the guide bar to prevent the chain on the end of the guide bar from contacting the wood.

THROTTLE TRIGGER

The throttle trigger is used for controlling chain rotation.

Page 10 — English

ASSEMBLY

UNPACKING

This product has been shipped completely assembled.

nCarefully remove the product and any accessories from the box. Make sure that all items listed in the packing list are included.

WARNING:

If any parts are damaged or missing do not operate this product until the parts are replaced. Use of this product with damaged or missing parts could result in serious personal injury.

WARNING:

Do not use this product if it is not completely assembled or if any parts appear to be missing or damaged. Use of a product that is not properly and completely assembled could result in serious personal injury.

nInspect the product carefully to make sure no breakage or damage occurred during shipping.

nDo not discard the packing material until you have carefully inspected and satisfactorily operated the product.

nIf any parts are damaged or missing, please call 1-800-242-4672 for assistance.

PACKING LIST

Chain Saw

Scabbard

Combination Wrench (UT10546, UT10566 & UT10586 only)

2-Cycle Engine Lubricant

Bar and Chain Lubricant (UT10584, UT10586) 18 in. Replacement Chain (UT10584, UT10586) Case (UT10564, UT10566, UT10584, UT10586) Operator’s Manual

WARNING:

Do not attempt to modify this product or create accessories not recommended for use with this product. Any such alteration or modification is misuse and could result in a hazardous condition leading to possible serious personal injury.

NOTE:  The chain saw hasbeen fully factory tested. It is normal to find some slight lubricant residue on the saw. Read and remove all hang tags and store with the Operator’s Manual.

OPERATION

WARNING:

Do not allow familiarity with this product to make you careless. Remember that a careless fraction of a second is sufficient to inflict serious injury.

WARNING:

Muffler surfaces are very hot during and after operation of the chain saw; keep all body parts away from the muffler. Serious burns may occur if contact is made with the muffler.

Page 11 — English

OPERATION

WARNING:

Always wear eye protection with side shields marked to comply with ANSI Z87.1, along with hearing and head protection. Failure to do so could result in objects being thrown into your eyes and other possible serious injuries.

WARNING:

Do not use any attachments or accessories not recommended by the manufacturer of this product. The use of attachments or accessories not recommended can result in serious personal injury..

nAlways handle fuel with care; it is highly flammable.

nAlways refuel outdoors and do not inhale fuel vapors.

nDo not let gasoline or lubricant come in contact with skin.

nKeep gasoline and lubricant away from the eyes.

If gasoline or lubricant comes in contact with the eyes, wash them immediately with clean water. If irritation is still present, see a doctor immediately.

nClean up spilled fuel immediately.

Refer to Refueling in the Specific Safety Rules section of this manual for additional safety information.

APPLICATIONS

You may use this product for the purposes listed below:

Basic limbing, felling, and bucking

Removing buttress roots

WARNING:

Always shut off engine before fueling. Never add fuel to a machine with a running or hot engine. Move at least 30 ft. from refueling site before starting the engine. DO NOT SMOKE and stay away from open flames or sparks. Failure to safely handle fuel could result in serious personal injury.

FUEL AND REFUELING HANDLING THE FUEL SAFELY

WARNING:

Check for fuel leaks. A leaking fuel cap is a fire hazard and must be replaced immediately. If you find any leaks, correct the problem before using the product. Failure to do so could result in a fire that could cause serious personal injury.

MIXING THE FUEL

nThis product is powered by a 2-cycle engine and requires pre-mixing gasoline and 2-cycle lubricant. Pre-mix unleaded gasoline and 2-cycle engine lubricant in a clean container approved for gasoline.

nThis engine is certified to operate on unleaded gasoline intended for automotive use with an octane rating of 87 [(R + M) / 2] or higher.

n Do not use any type of pre-mixed gasoline/lubricant from fuel service stations, this includes the pre-mixed gasoline/lubricant intended for use in mopeds, motorcycles, etc.

n Use a high quality 2-cycle self-mixing lubricant for air-cooled engines. Do not use automotive lubricant or 2-cycle outboard lubricant.

n Mix 2% lubricant into the gasoline. This is a 50:1 ratio.

nMix the fuel thoroughly and each time before fueling.

n Mix in small quantities. Do not mix quantities larger than usable in a 30-day period. A 2-cycle lubricant containing a fuel stabilizer is recommended.

PREMIUM EXACT MIX™ (50:1)

GASOLINE

LUBRICANT

1 Gallon (US)

2.6 oz.

1 Liter

20 cc (20 ml)

Page 12 — English

OPERATION

OXYGENATED FUELS

OXYGENATED FUELS

DO NOT USE E85 FUEL. IT WILL VOID YOUR WARRANTY.

NOTE:  Fuel system damage or performance problems resulting from the use of an oxygenated fuel containing more than the percentages of oxygenates stated previously are not covered under warranty.

Ethanol. Gasoline containing up to 10% ethanol by volume(commonlyreferredtoasE10)isacceptable. Do not use E85 fuel.

FILLING THE FUEL TANK

See Figure 2.

nClean the surface around the fuel cap to prevent contamination.

nLoosen the fuel cap slowly, by turning counterclockwise.

nCarefully pour the fuel mixture into the tank. Avoid spillage.

nPriortoreplacingthefuelcap,cleanandinspectthe gasket.

nImmediately replace the fuel cap and hand tighten, by turning clockwise. Wipe up any fuel spillage.

nMove at least 30 ft. away from refueling area before starting the product.

NOTE:  It is normal for the engine to emit smoke during and after the first use.

 

&

GASOLINE

 

MIX

LUBRICANT

50:1

Fig. 2

Page 13 — English

OPERATION

ADDING BAR AND CHAIN LUBRICANT

See Figure 3.

Use HOMELITE Bar and Chain Lubricant. It is designed for chains and chain oilers, and is formulated to perform over a wide temperature range with no dilution required. Chain saw should use approximately one tank of lubricant per tank of fuel.

NOTE:  Do not use dirty, used, or otherwise contaminated lubricants. Damage may occur to the oil pump, bar, or chain.

nCarefully pour the bar and chain lubricant into the oil tank.

nFill the oil tank every time you fuel the engine.

OPERATING THE CHAIN BRAKE

See Figures 4 - 5.

Check the operating condition of the chain brake prior to each use.

nEngage the chain brake by rotating your left hand around the front handle, allowing the back of your hand to push the chain brake lever/hand guard toward the bar while the chain is rotating rapidly. Be sure to maintain both hands on the saw handles at all times.

nReset the chain brake back into the RUN position by grasping the top of the chain brake lever/hand guard and pulling toward the front handle until you hear a click.

WARNING:

If the chain brake does not stop the chain immediately, or if the chain brake will not stay in the run position without assistance, take the saw to an authorized service center for repair prior to use.

STARTING THE ENGINE

See Figures 6 - 11.

Starting the product differs depending on whether the engine is cold or warm.

WARNING:

Keep your body to the left of the chain line.

Never straddle the saw or chain, or lean over past the chain line.

LUBRICANT

CHAIN

Fig. 3

BRAKE

POSITION

Fig. 4

RUN

POSITION

Fig. 5

STARTER

GRIP

Fig. 6

Page 14 — English

OPERATION

nPlace the chain saw on level ground and ensure that no objects or obstructions are in the immediate vicinity that could come in contact with the bar and chain.

nHold the front handle firmly with your left hand and put your right foot onto the base of the rear handle.

To start a cold engine:

nSet the on/stop switch to the RUN ( I ) position.

nMake sure the chain brake is in the run position by pulling back on the lever/hand guard.

nFully press and release the primer bulb 7 times.

nPull choke lever all the way out to FULL position.

nWhen the temperature is above 50°F, pull the starter grip until the engine attempts to start, but no more than 3 times. When the temperature is below 50°F, pull the starter grip until the engine attempts to start, but no more than 5 times.

nPush choke lever to RUN position.

nPull starter grip until engine runs.

NOTE:  Allow the saw to run in this position 1530 seconds, depending upon the temperature.

nDepress the trigger release and squeeze and release the throttle trigger to return the engine to idle after a total run time of at least 30 seconds.

ON/STOP

SWITCH IN THE

RUN POSITION

STOP

Fig. 7

RUN

POSITION

Fig. 8

PRIMER BULB

Fig. 9

CAUTION:

Failure to release partial throttle when chain brake lever is in the brake position will result in serious damage to the unit. Never squeeze and hold the throttle trigger while the chain brake is in the brake position.

To start a warm engine:

nSet the on/stop switch to the RUN ( I ) position.

nMake sure the chain brake is in the run position by pulling back on the lever/hand guard.

nPull choke lever out to FULL CHOKE position then push immediately back to RUN position to set fast idle.

CHOKE LEVER

STOP

FULL CHOKE

RUN POSITION

Fig. 10

Page 15 — English

OPERATION

nPull starter grip until engine runs, but no more than 5 times. If engine does not start after 5 pulls, use cold engine starting procedure.

nSqueeze and release the throttle trigger to return the engine to idle.

STOPPING THE ENGINE

See Figures 12 - 13.

Release the throttle trigger and let the engine return to idle. To stop the engine, move the on/ stop switch to the STOP () position. Do not put the chain saw on the ground when the chain is still moving. For additional safety, set the chain brake when the saw is not in use.

In the event that the on/stop switch will not stop the saw, pull the choke lever out to the fully extended position (FULL CHOKE ) and engage chain brake to stop the engine. If the on/stop switch will not stop the saw when set to the STOP position, have the on/stop switch repaired before using the chain saw again to prevent unsafe conditions or serious injury.

NOTE:  When you are finished using the saw, always relieve tank pressure by loosening, then retightening, the chain oil and fuel caps. Allow the engine to cool before storing.

ADJUSTING IDLE SPEED

See Figure 14.

nIf the engine starts, runs, and accelerates, but will not idle, turn the idle speed screw “T” clockwise to increase idle speed.

nIf the chain turns at idle, turn the idle speed screw “T” counterclockwise to reduce the idle RPM and stop the chain movement. If the saw chain still moves at idle speed, contact an authorized service center for adjustment and discontinue use until the repair is made.

TRIGGER RELEASE

IDLE SPEED SCREW “T”

THROTTLE

 

TRIGGER

Fig. 11

STOP

ON/STOP

SWITCH IN THE

STOP POSITION

Fig. 12

BRAKE

POSITION

Fig. 13

Fig. 14

Page 16 — English

OPERATION

WARNING:

THE SAW CHAIN SHOULD NEVER TURN AT IDLE. Turn the idle speed screw “T” counterclockwise to reduce the idle RPM and stop the chain, or contact an authorized service center for adjustment and discontinue use until the repair is made. Serious personal injury may result from the saw chain turning at idle.

PULL AND PUSH

See Figure 15.

The reaction force of the saw is always opposite to the direction the chain is moving. Thus, the operator must be ready to control the PULL when cutting on the bottom edge of the bar and the PUSH when cutting along the top edge.

NOTE:  The chain saw has been fully factory tested. It is normal to find some slight oil residue on the saw.

WARNING:

KICKBACK occurs when the moving chain contacts an object at the upper portion of the tip of the guide bar or when the wood closes in and pinches the saw chain in the cut. Contact at the upper portion of the tip of the guide bar can cause the chain to dig into the object and stop the chain for an instant. The result is a lightning-fast reverse reaction which kicks the guide bar up and back toward the operator. If the saw chain is pinched along the top of the guide bar, the guide bar can be driven rapidly back toward the operator. Either of these reactions can cause loss of saw control, which can result in serious injury.

Do not rely exclusively upon the safety devices built into the saw. As a chain saw user, you should take steps to keep your cutting jobs free from accident or injury. See General Safety Rules for more details.

PULL

PUSH

Fig. 15

 

Page 17 — English

OPERATION

KICKBACK PRECAUTIONS

See Figures 16 - 17.

Rotational kickback occurs when the moving chain contactsanobjectattheKickbackDangerZoneof the guide bar. The result is a lightning-fast reverse reaction, which kicks the guide bar up and back towards the operator. This reaction can cause loss of control, which can result in serious injury.

PREPARING FOR CUTTING

PROPER GRIP ON HANDLES

See Figure 18.

See General Safety Rules for appropriate safety equipment.

nWear non-slip gloves for maximum grip and protection.

nHold the saw firmly with both hands. Always keep your left hand on the front handle and your right hand on the rear handle so that your body is to the left of the chain line.

WARNING:

Never use a left-handed (cross-handed) grip or any stance that would place your body or arm across the chain line.

nMaintain a proper grip on the saw whenever the engine is running. The fingers should encircle the handle and the thumb is wrapped under the handlebar. This grip is least likely to be broken by a kickback or other sudden reaction of the saw. Any grip in which the thumb and fingers are on the same side of the handle is dangerous because a slight kick of the saw can cause loss of control.

WARNING:

DO NOT operate the throttle

 

trigger with your left hand

 

and hold the front handle

 

with your right hand. Never

CHAIN

allow any part of your body

to be in the chain line while

LINE

operating a saw.

 

KICKBACK

DANGER ZONE

Fig. 16

ROTATIONAL

KICKBACK

Fig. 17

PROPER HAND GRIP

POSITION

PROPER GRIP

IMPROPER GRIP

Fig.18

Page 18 — English

OPERATION

PROPER CUTTING STANCE

See Figure 19.

WARNING:

Always use the proper cutting stance described in this section. Never kneel when using the chain saw, except when felling a tree as illustrated in Figure 20. Kneeling could result in loss of stability and control of the chain saw, resulting in serious personal injury.

n Balance your weight with both feet on solid ground.

n Keep left arm with elbow locked in a “straight arm” position to withstand any kickback force.

n Keep your body to the left of the chain line. n Keep your thumb on underside of handlebar.

WORK AREA PRECAUTIONS

See Figure 20.

nCut only wood or materials made from wood; no sheet metal, no plastics, no masonry, no non-wood building materials.

n Never allow children to operate the saw. Allow no person to use this chain saw who has not read this operator’s manual or received adequate instructions for the safe and proper use of this chain saw.

n Keep everyone – helpers, bystanders, children, and animals, a SAFE DISTANCE from the cutting area. During felling operations, the safe distance should be a least twice the height of the largest trees in the felling area. During bucking operations, keep a minimum distance of 15 feet between workers.

n Always cut with both feet on solid ground to prevent being pulled off balance.

n Do not cut above chest height as a saw held higher is difficult to control against kickback forces.

n Do not fell trees near electrical wires or buildings. Leave this operation for professionals.

n Cut only when visibility and light are adequate for you to see clearly.

THUMB ON

CHAIN LINE

STRAIGHT

ARM

UNDERSIDE OF

 

 

HANDLE BAR

 

 

Fig. 19

Fig. 20

BASIC OPERATING/CUTTING PROCEDURES

Practice cutting a few small logs using the following technique to get the “feel” of using the saw before you begin a major sawing operation.

nTake the proper stance in front of the wood with the saw idling.

nAccelerate the engine to full throttle just before entering the cut by squeezing the throttle trigger.

nBegin cutting with the saw against the log.

nKeep the engine at full throttle the entire time you are cutting.

nAllow the chain to cut for you; exert only light downward pressure. Forcing the cut could result in damage to the bar, chain, or engine.

nRelease the throttle trigger as soon as the cut is completed allowing the engine to idle. Running the saw at full throttle without a cutting load can result in unnecessary wear to the chain, bar, and engine.

Page 19 — English

OPERATION

nDo not put pressure on the saw at the end of the cut.

FELLING TREES HAZARDOUS CONDITIONS

WARNING:

Do not fell trees during periods of high wind or heavy ­precipitation. Wait until the hazardous weather has ended.

When felling a tree, it is important that you heed the following warnings to prevent possible serious injury.

n Do not cut down trees having an extreme lean or large trees with rotten limbs, loose bark, or hollow trunks. Have these trees pushed or dragged down with heavy equipment, then cut them up.

n■ Do not cut trees near electrical wires or buildings.

n Check the tree for damaged or dead branches that could fall and hit you during felling.

n Periodically glance at the top of the tree during the backcut to assure the tree is going to fall in the desired direction.

nIf the tree starts to fall in the wrong direction, or if the saw gets caught or hung up during the fall, leave the saw and save yourself!

PLANNED LINE

OF FALL

 

90°

135° FROM

 

PLANNED

 

LINE OF FALL

PATH OF

 

SAFE RETREAT

PLANNED

135°

 

PATH

LINE OF

 

OF SAFE

FALL

 

45°

RETREAT

 

 

 

90°

45°

135°

Fig. 21

PROPER PROCEDURE FOR TREE

FELLING

See Figures 21 - 24.

nPick your escape route (or routes in case the intended route is blocked). Clear the immediate area around the tree and make sure there are no obstructions in your planned path of retreat. Clear the path of safe retreat approximately 135° from the planned line of fall.

nConsider the force and direction of the wind, the lean and balance of the tree, and the location of large limbs. These things influence the direction in which the tree will fall. Do not try to fell a tree along a line different from its natural line of fall.

nCut a notch about 1/3 the diameter of the trunk in the side of the tree. Make the notch cuts so they intersect at a right angle to the line of fall.

Page 20 — English

HINGE

2 in. OR 1/10 DIA

NOTCH -

APPROX. 1/3

DIAMETER OF

TRUNK

BACK CUT

2 in.

Fig. 22

OPERATION

This notch should be cleaned out to leave a straight line. To keep the weight of the wood off the saw, always make the lower cut of the notch before the upper cut.

nMake the backcut level and horizontal, and at a minimum of 2 in. above the horizontal cut of the notch.

NOTE:  Never cut through to the notch. Always leave a band of wood between the notch and back cut (approximately 2 in. or 1/10 the diameter of the tree). This is called “hinge” or “hingewood.” It controls the fall of the tree and prevents slipping or twisting or shootback of the tree off the stump.

nOn large diameter trees, stop the back cut before it is deep enough for the tree to either fall or settle back on the stump. Then insert soft wooden or plastic wedges into the cut so they do not touch the chain. Drive wedges in, little by little, to help jack the tree over.

NOTE: When bucking or felling with a wedge, it may be necessary to remove the SAFE-T-TIP® anti-kickback device to allow the bar to be drawn through the cut. After you complete the cut, reinstall the tip immediately.

nAs tree starts to fall, stop the chain saw and put it down immediately. Retreat along the cleared path, but watch the action in case something falls your way.

WARNING:

Never cut through to the notch when making a back cut. The hinge controls the fall of the tree, this is the section of wood between the notch and backcut.

HINGE

BACK CUT

Fig. 23

WEDGE

Fig. 24

VERTICAL

CUT

LOOSE

SECTION

HORIZONTAL

CUT

Fig. 25

REMOVING BUTTRESS ROOTS

See Figure 25.

A buttress root is a large root extending from the trunk of the tree above the ground. Remove large buttress roots prior to felling. Make the horizontal cut into the buttress first, followed by the vertical cut. Remove the resulting loose section from the work area. Follow the correct tree felling procedure as stated in Proper Procedure For Tree Felling after you have removed the large buttress roots.

Page 21 — English

 

 

OPERATION

 

 

 

 

 

 

 

 

BUCKING

KICKBACK

See Figure 26.

 

 

Bucking is the term used for cutting a fallen tree to the desired log length.

n Cut only one log at a time.

n Support small logs on a saw horse or another log while bucking.

n Keep a clear cutting area. Make sure that no

 

objects can contact the guide bar nose and

 

chain during cutting, this can cause kickback.

 

To avoid the danger, keep the SAFE-T-TIP®

 

anti-kickback device attached while cutting.

Fig. 26

Refer to Kickback in the Specific Safety Rules

 

section of this manual for more information.

 

n During bucking operations, stand on the uphill

side so that the cut-off section of the log cannot WEDGE roll over you.

n Sometimes it is impossible to avoid pinching (with just standard cutting techniques) or dif-

ficult to predict which way a log will settle when cut.

BUCKING WITH A WEDGE

See Figure 27.

If the wood diameter is large enough for you to

 

insert a soft bucking wedge without touching the

Fig. 27

chain, you should use the wedge to hold the cut

open to prevent pinching.

 

NOTE:  When bucking or felling with a wedge, you may need to remove the SAFE-T-TIP® anti-kickback device to allow the bar to be drawn through the cut. After you complete the cut, reinstall the tip.

Page 22 — English

OPERATION

BUCKING LOGS UNDER STRESS

See Figure 28.

Make the first bucking cut 1/3 of the way through the log and finish with a 2/3 cut on the opposite side. As you cut the log, it will tend to bend. The saw can become pinched or hung in the log if you make the first cut deeper than 1/3 of the diameter of the log.

Give special attention to logs under stress to prevent the bar and chain from pinching.

OVERBUCKING

See Figure 29.

Begin on the top side of the log with the bottom of the saw against the log; exert light pressure downward. Note that the saw will tend to pull away from you.

UNDERBUCKING

See Figure 30.

Begin on the under side of the log with the top of the saw against the log; exert light pressure upward. During underbucking, the saw will tend to push back at you. Be prepared for this reaction and hold the saw firmly to maintain control.

LOG SUPPORTED AT ONE END

FINISHING CUT LOAD

1ST CUT 1/3 DIA

LOG SUPPORTED AT BOTH ENDS

1ST CUT 1/3 DIA LOAD

FINISHING CUT

Fig. 28

OVERBUCKING

Fig. 29

 

UNDERBUCKING

Fig. 30

Page 23 — English

OPERATION

LIMBING AND PRUNING

See Figures 31 - 32.

nWork slowly, keeping both hands on the saw with a firm grip. Maintain secure footing and balance.

n Keep the tree between you and the chain while limbing.

nDo not cut from a ladder. This is extremely dangerous. Leave this operation for professionals.

n Do not cut above chest height. A saw held higher than chest height is ­difficult to control against kickback.

LOAD SECOND CUT

FIRST CUT 1/3 DIAMETER

FINISHING CUT

Fig. 31

 

WARNING:

Never climb into a tree to limb or prune. Do not stand on ladders, platforms, rooftops, a log, or in any position which can cause you to lose your balance or control of the saw.

n When pruning trees it is important not to make the flush cut next to the main limb or trunk until you have cut off the limb further out to reduce the weight. This prevents stripping the bark from the main member.

•  Underbuck the branch 1/3 through for your first cut.

Overbuck the branch to drop it.

Finish by cutting smoothly and neatly against the main member so the bark will grow back to seal the wound.

CUT LIMBS ONE AT A TIME AND LEAVE SUPPORT LIMBS UNDER TREE UNTIL LOG IS CUT

Fig. 32

SPRINGPOLE

Fig. 33

 

WARNING:

If the limbs to be pruned are above chest height, hire a professional to perform the pruning.

CUTTING SPRINGPOLES

See Figure 33.

A springpole is any log, branch, rooted stump, or sapling which is bent under tension by other wood so that it springs back if the wood holding it is cut or removed. On a fallen tree, a rooted stump has a high potential of springing back to the upright position during the bucking cut to separate the log from the stump. Watch out for springpoles — they are dangerous.

WARNING:

Springpoles are dangerous and could strike the operator, causing the operator to lose control of the chain saw. This could result in severe or fatal injury to the operator.

Page 24 — English

MAINTENANCE

WARNING:

Make sure the on/stop switch is in the STOP “  ” position and the chain has stopped before performing any maintenance on the saw. Failure to do so may result in serious personal injuries.

WARNING:

RUN

POSITION

Fig. 34

Muffler surfaces are very hot during and after operation of the chain saw; keep all body parts away from the muffler. Serious burns may occur if contact is made with the muffler.

WARNING:

When servicing, use only identical Homelite replacement parts. Use of any other parts may create a hazard or cause product damage.

Fig. 35

WARNING:

Aways wear eye protection with side shields marked to comply with ANSI Z87.1, along with hearing and head protection. Failure to do so could result in objects being thrown into your eyes and other possible serious injuries.

GENERAL MAINTENANCE

 

 

 

Avoid using solvents when cleaning plastic parts.

 

 

 

Most plastics are susceptible to damage from

 

 

 

various types of commercial solvents and may be

SPROCKET

CLUTCH

 

damaged by their use. Use clean cloths to remove

 

 

COVER

Fig. 36

dirt, dust, lubricant, grease, etc.

 

 

 

WARNING:

Do not at any time let brake fluids, gasoline, petroleum-based products, penetrating oils, etc., come in contact with plastic parts. Chemicals can damage, weaken or destroy plastic which may result in serious personal injury.

LUBRICATION

All of the bearings in this product are lubricated with a sufficient amount of high grade lubricant for the life of the unit under normal operating conditions. Therefore, no further lubrication is required.

Page 25 — English

MAINTENANCE

REPLACING THE GUIDE BAR AND CHAIN

See Figures 34 - 43.

DANGER:

Never start the engine before installing the guide bar, chain, clutch cover, and clutch drum. Without all these parts in place, the clutch can fly off or explode, exposing the user to possible serious injury.

CUTTERS CHAIN ROTATION

CHAIN DRIVE LINKS

WARNING:

To avoid serious personal injury, read and understand all the safety instructions in this section.

nAlways place the switch in the STOP ” position before you work on the saw.

nMake sure the chain brake is not set by pulling the chain brake lever/hand guard towards the front handle to the run position.

NOTE:  When replacing the guide bar and chain, always use the specified bar and chain listed in the Bar and Chain Combinations section later in this manual.

nWear gloves when handling the chain and bar. These components are sharp and may contain burrs.

nPress in on the clutch cover lock knob and rotate counterclockwise until the clutch cover can be removed.

nRemove the bar and chain from the mounting surface.

nRemove the old chain from the bar.

nLay out the new saw chain in a loop and straighten any kinks. The cutters should face in the direction of chain rotation. If they face backwards, turn the loop over.

nPlace the chain drive links into the bar groove as shown.

nPosition the chain so there is a loop at the back of the bar.

Fig. 37

BAR

GROOVE

CHAIN DRIVE LINKS

Fig. 38

nHold the chain in position on the bar and place the loop around the sprocket.

nFit the bar flush against the mounting surface so that the bar studs are in the long slot of the bar.

nReplace the clutch cover ensuring that the adjusting pin in the clutch cover is in the bar chain tensioning pin hole and that both bar studs are securely in their respective holes in the clutch cover.

Page 26 — English

Homelite UT10584, UT10564, UT10566, UT10586, UT10546 User Manual

MAINTENANCE

NOTE: The adjusting pin may need to be slightly repositioned with the chain tensioning dial so that it is aligned with the position of the bar chain

tensioning pin hole.

n Replace the clutch cover and rotate clutch cover lock knob just enough to hold the cover in position.

NOTE: The bar must be free to move for chain tension adjustment.

n Lift the tip of the guide bar up to check for sag.

n Remove all slack from the chain by rotating the chain tensioning dial clockwise until the chain seats snugly against the bar with the drive links in the bar groove.

n Release the tip of the guide bar and, if the chain sags, turn the chain tensioning dial clockwise. Repeat this process until sag does not exist.

nHold the tip of the guide bar up and tighten the clutch cover lock knob securely.

The chain is correctly tensioned when there is no sag on the underside of the guide bar, the chain is

ROTATE CLUTCH COVER LOCKKNOB CLOCKWISE TO SECURE

ADJUSTING PIN

CHAIN

CLUTCH COVER

Fig. 40

TENSIONING DIAL

LOCK KNOB

 

Fig. 41

CHAIN TENSIONING

 

 

PIN HOLE

TIGHTEN

LOOSEN

 

 

CHAIN

CHAIN

SPROCKET

CLUTCH

 

 

 

 

COVER

 

Fig. 42

Fig. 39

Page 27 — English

MAINTENANCE

snug, but it can be turned by hand without binding. Ensure that the chain brake is not set.

NOTE:  If chain is too tight, it will not rotate. Loosen the clutch cover lock knob by pressing in and slightly rotating counterclockwise, then rotate the chain tensioning dial counterclockwise. Lift the tip of the guide bar up and retighten the clutch cover lock knob securely. Ensure that the chain will rotate without binding.

ADJUSTING THE CHAIN TENSION

See Figures 44 - 46.

WARNING:

Never touch or adjust the chain while the engine is running. The saw chain is very sharp. Always wear protective gloves when performing maintenance on the chain.

nStop the engine before setting the chain tension.

nSlightly loosen the clutch cover lock knob by pressing in and rotating counterclockwise.

nTurn the chain tensioning dial clockwise to tension the chain.

NOTE:  A cold chain is correctly tensioned when there is no slack on the underside of the guide bar, the chain is snug, and it can be turned by hand without binding.

nRetension the chain whenever the flats on the drive links hang out of the bar groove.

NOTE:  During normal saw operation, the temperature of the chain increases. The drive links of a correctly tensioned warm chain will hang approximately .050 in. out of the bar groove. The tip of the supplied combination wrench (UT10546, UT10566 and UT10586 only) can be used as a guide to help determine the correct warm chain tension.

NOTE:  New chains tend to stretch; check the chain tension frequently and tension as required.

Fig. 43

FLATS ON DRIVE LINKS

Fig. 44

.050 in.

Fig. 45

.050 in.

Fig. 46

CAUTION:

A chain tensioned while warm may be too tight upon cooling. Check the “cold tension” before next use to avoid possible injury.

Page 28 — English

MAINTENANCE

CHAIN MAINTENANCE

See Figures 47 - 48.

RAKER (DEPTH GAUGE) CLEARANCE

 

CAUTION:

Check that the switch is in the STOP ” position before you work on the saw.

Use only a low-kickback chain on this saw. This fast-­cutting chain provides kickback reduction

when properly maintained.

For smooth and fast cutting, maintain the chain properly.

The chain requires sharpening when the wood chips are small and powdery, the chain must be forced through the wood during cutting, or the chain cuts to one side. During maintenance of the chain, consider the following:

n Improper filing angle of the side plate can increase the risk of severe kickback.

n Raker (depth gauge) clearance.

•  Too low increases the potential for kickback.

•  Not low enough decreases cutting ability.

nIf the cutter teeth hit hard objects such as nails and stones, or are abraded by mud or sand on the wood, have an authorized service center sharpen the chain.

NOTE:  Inspect the drive sprocket for wear or damage when replacing the chain. If signs of wear or damage are present in the areas indicated, have the drive sprocket replaced by an authorized service center.

NOTE:  If you do not fully understand the correct procedure for sharpeningthe chain after readingthe instructions that follow, have the saw chain sharpened by an authorized service center or replace with a recommended low-kickback chain.

.025 in.

Fig. 47

INSPECT

DRIVE

SPROCKET

Fig. 48

Page 29 — English

MAINTENANCE

SHARPENING THE CUTTERS

See Figures 49 - 52.

Be careful to file all cutters to the specified angles and to the same length, as fast cutting can only be obtained when all cutters are uniform.

WARNING:

The saw chain is very sharp. Always wear protective gloves when performing maintenance to the chain to prevent serious personal injury.

nTension the chain prior to sharpening. Refer to

Adjusting The Chain Tension.

nUse a 5/32 in. diameter round file and holder. Do all of your filing at the midpoint of the bar.

nKeep the file level with the top plate of the tooth.

Do not let the file dip or rock.

nUsing light but firm pressure. Stroke towards the front corner of the tooth.

nLift the file away from the steel on each return stroke.

nPut a few firm strokes on every tooth. File all left hand cutters in one direction. Then move to the other side and file the right hand cutters in the opposite direction.

nRemove filings from the file with a wire brush.

CAUTION:

A dull or improperly sharpened chain can cause excessive engine speed during cutting, which may result in severe engine damage.

WARNING:

Improper chain sharpening increases the potential of kickback.

WARNING:

Failure to replace or repair a damaged chain can cause serious injury.

TOP PLATE

CUTTING

CORNER

 

 

SIDE PLATE

RIVET HOLE

DEPTH GAUGE

 

HEEL

TOE

GULLET

Fig. 49

Fig. 50

Fig. 51

LEFT HAND

CUTTERS

RIGHT HAND

 

CUTTERS

Fig. 52

 

Page 30 — English

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