Eager beaver Eb428 User manual

PN 9096-MD0707 Printed in Taiwan

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MTD LLC

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97 Kent Avenue

Kitchener, ON

CANADA N2G 4J1

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USER MANUAL

Gasoline Chain Saws

Models : EB428

WARNING • PLEASE READ

Beware of kickback. Hold chain saw firmly with both hands when using. For your own safety, please read and follow the

safety precautions in this manual before attempting to operate your chain saw. Improper use can cause serious injury.

This product has been tested at a computed kickback angle (CKA) and conforms to ANSI B175.1-2000, Annex C.

CAN/CSA-Z62.1-03

SAFETY

OPERATION

MAINTENANCE

2 3

PLEASE READ

Dear Customer,

Thank you for purchasing a McCulloch product. With prop-

er operation and maintenance, it will provide you with years

of service.

In order to make the best use of your investment, be CER-

TAIN to familiarize yourself with the contents of the

ENTIRE user manual before attempting to operate and

maintain your unit.

Be sure to carefully follow the step-by-step instructions in

this manual to start, operate and maintain your new prod-

uct.

In the manual there will be the following call-outs: NOTE:,

WARNING / CAUTION and WARRANTY.

A NOTE: is used to convey additional information, to high-

light a particular explanation, or to expand a step descrip-

tion.

A WARNING or CAUTION identifies a procedure which, if

not undertaken or if improperly done, can result in serious

personal injury and/or damage to the unit.

The (WARRANTY SYMBOL) serves notice that unless

instructions or procedures are followed, any damage

caused will void the warranty and repairs will be at owner’s

expense.

Pay particular attention to the safety precautions. They are

written for your protection and contain important informa-

tion you must know to safely operate your chain saw.

FOR WARRANTY OR SERVICE CONTACT THE NEAREST

AUTHORIZED SERVICE CENTER - LOCATE YOUR NEAR-

EST SERVICE CENTER BY CALLING THE TOLL FREE

NUMBER IN THIS MANUAL.

TABLE OF CONTENTS

1 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . .3

1-1. General Identification

1-2. Safety Features

2 SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2-1. Kickback Safety Precautions

2-2. Other Safety Precautions

2-3. General Safety Precautions for chain saw users

2-4. More About Kickback

2-5. Kickback safety Labels

2-6. International Symbols

3 ASSEMBLY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . .7

3-1. Tools for Assembly (Your saw was assembled the factory)

3-2. Assembly Requirements

3-3. Guide Bar / Saw Chain / Clutch Cover Removal and

<None>Installation

3-4. Saw Chain Tension Adjustment

3-5. CHAIN BRAKE®Mechanical Test

4FUEL AND LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . .10

4-1. Fuel

4-2. Mixing Fuel

4-3. Fuel and Lubrication Symbols

Fuel Mixing Table

4-4. Recommended Fuels

4-5. Chain and Bar Lubrication

5 OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . .11

5-1. Engine Pre-Start Checks

5-2. To Start Engine

5-3. Re-Starting a Warm Engine

5-4. To Stop Engine

5-5. CHAIN BRAKE®Operational Test

5-6. Saw Chain / Bar Lubrication

5-7. Automatic Oiler

6 GENERAL CUTTING INSTRUCTIONS . . . . . . . . . . . . . . . .13

6-1. Felling

6-2. Limbing

6-3. Bucking

6-4. Bucking Using a Sawhorse

7MAINTENANCE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . .15

7-1. Preventive Maintenance

7-2. Air Filter

7-3. Fuel Filter

7-4. Spark Arrester Screen

7-5. Spark Plug

7-6. Carburetor Adjustment

7-7. Storing a Chain Saw

7-8. Removing a Unit From Storage

8BAR / CHAIN MAINTENANCE . . . . . . . . . . . . . . . . . . . . . .18

8-1. Guide Bar Maintenance

8-2. Chain Maintenance

8-3. Chain Replacement Information

9TROUBLESHOOTING THE ENGINE . . . . . . . . . . . . . . . . . .20

10 PART LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

INTRODUCTION 1 - GENERAL INFORMATION

12 13 14

22 20

19 24

1-1.GENERAL IDENTIFICATION

1. GUIDE BAR

2. SAW CHAIN

3. SAW CHAIN ADJUSTMENT SCREW

4. SPARK ARRESTER SCREEN

5. CHAIN BRAKE®LEVER /HAND GUARD

6. FRONT HANDLE

7. STARTER HANDLE

8. SPARK PLUG

9. AIR CLEANER COVER

10. STOP SWITCH

11. SAFETY LATCH

12. OIL TANK CAP

13. STARTER COVER

14. FUEL TANK CAP

15. REAR HANDLE / BOOT LOOP

16. PRIMER BULB

17. BLUE CHOKE LEVER

18. BAR RETAINING NUT

19. THROTTLE / TRIGGER

20. CHAIN CATCHER

21. MUFFLER SHIELD

22. CLUTCH COVER

23. BUCKING SPIKE

24. CLUTCH COVER RETAINING SCREW

25. SCREWDRIVER / WRENCH

26. CARRY CASE (Available on some models)

1-2. SAFETY FEATURES

Numbers preceding the descriptions correspond with the

numbers above to help you locate the safety feature.

2LOW KICKBACK SAW CHAIN helps significantly

reduce kickback, or the intensity of kickback, due to

specially designed depth gauges and guard links.

4 SPARK ARRESTER SCREEN retains carbon and

other flammable particles over 0.023 inches (0.6mm)

in size from engine exhaust flow. Compliance with

local, state and federal laws and/or regulations gov-

erning the use of a spark arrester screen is the user’s

responsibility. See Safety Precautions for additional

information.

5 CHAIN BRAKE®LEVER / HAND GUARD protects the

operator’s left hand in the event it slips off the front

handle while saw is running.

5 CHAIN BRAKE®is a safety feature designed to reduce

the possibility of injury due to kickback by stopping a

moving saw chain in milliseconds. It is activated by the

CHAIN BRAKE®lever.

10 STOP SWITCH immediately stops the engine when

tripped. Stop switch must be pushed to ON position to

start or restart engine.

11 SAFETY LATCH prevents accidental acceleration of

the engine. Throttle trigger (19) cannot be squeezed

unless the safety latch is depressed.

20 CHAIN CATCHER reduces the danger of injury in the

event saw chain breaks or derails during operation.

The chain catcher is designed to intercept a whipping

chain.

2 3

PLEASE READ

Dear Customer,

Thank you for purchasing a McCulloch product. With prop-

er operation and maintenance, it will provide you with years

of service.

In order to make the best use of your investment, be CER-

TAIN to familiarize yourself with the contents of the

ENTIRE user manual before attempting to operate and

maintain your unit.

Be sure to carefully follow the step-by-step instructions in

this manual to start, operate and maintain your new prod-

uct.

In the manual there will be the following call-outs: NOTE:,

WARNING / CAUTION and WARRANTY.

A NOTE: is used to convey additional information, to high-

light a particular explanation, or to expand a step descrip-

tion.

A WARNING or CAUTION identifies a procedure which, if

not undertaken or if improperly done, can result in serious

personal injury and/or damage to the unit.

The (WARRANTY SYMBOL) serves notice that unless

instructions or procedures are followed, any damage

caused will void the warranty and repairs will be at owner’s

expense.

Pay particular attention to the safety precautions. They are

written for your protection and contain important informa-

tion you must know to safely operate your chain saw.

FOR WARRANTY OR SERVICE CONTACT THE NEAREST

AUTHORIZED SERVICE CENTER - LOCATE YOUR NEAR-

EST SERVICE CENTER BY CALLING THE TOLL FREE

NUMBER IN THIS MANUAL.

TABLE OF CONTENTS

1 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . .3

1-1. General Identification

1-2. Safety Features

2 SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2-1. Kickback Safety Precautions

2-2. Other Safety Precautions

2-3. General Safety Precautions for chain saw users

2-4. More About Kickback

2-5. Kickback safety Labels

2-6. International Symbols

3 ASSEMBLY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . .7

3-1. Tools for Assembly (Your saw was assembled the factory)

3-2. Assembly Requirements

3-3. Guide Bar / Saw Chain / Clutch Cover Removal and

<None>Installation

3-4. Saw Chain Tension Adjustment

3-5. CHAIN BRAKE®Mechanical Test

4FUEL AND LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . .10

4-1. Fuel

4-2. Mixing Fuel

4-3. Fuel and Lubrication Symbols

Fuel Mixing Table

4-4. Recommended Fuels

4-5. Chain and Bar Lubrication

5 OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . .11

5-1. Engine Pre-Start Checks

5-2. To Start Engine

5-3. Re-Starting a Warm Engine

5-4. To Stop Engine

5-5. CHAIN BRAKE®Operational Test

5-6. Saw Chain / Bar Lubrication

5-7. Automatic Oiler

6 GENERAL CUTTING INSTRUCTIONS . . . . . . . . . . . . . . . .13

6-1. Felling

6-2. Limbing

6-3. Bucking

6-4. Bucking Using a Sawhorse

7MAINTENANCE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . .15

7-1. Preventive Maintenance

7-2. Air Filter

7-3. Fuel Filter

7-4. Spark Arrester Screen

7-5. Spark Plug

7-6. Carburetor Adjustment

7-7. Storing a Chain Saw

7-8. Removing a Unit From Storage

8BAR / CHAIN MAINTENANCE . . . . . . . . . . . . . . . . . . . . . .18

8-1. Guide Bar Maintenance

8-2. Chain Maintenance

8-3. Chain Replacement Information

9TROUBLESHOOTING THE ENGINE . . . . . . . . . . . . . . . . . .20

10 PART LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

INTRODUCTION 1 - GENERAL INFORMATION

12 13 14

22 20

19 24

1-1.GENERAL IDENTIFICATION

1. GUIDE BAR

2. SAW CHAIN

3. SAW CHAIN ADJUSTMENT SCREW

4. SPARK ARRESTER SCREEN

5. CHAIN BRAKE®LEVER /HAND GUARD

6. FRONT HANDLE

7. STARTER HANDLE

8. SPARK PLUG

9. AIR CLEANER COVER

10. STOP SWITCH

11. SAFETY LATCH

12. OIL TANK CAP

13. STARTER COVER

14. FUEL TANK CAP

15. REAR HANDLE / BOOT LOOP

16. PRIMER BULB

17. BLUE CHOKE LEVER

18. BAR RETAINING NUT

19. THROTTLE / TRIGGER

20. CHAIN CATCHER

21. MUFFLER SHIELD

22. CLUTCH COVER

23. BUCKING SPIKE

24. CLUTCH COVER RETAINING SCREW

25. SCREWDRIVER / WRENCH

26. CARRY CASE (Available on some models)

1-2. SAFETY FEATURES

Numbers preceding the descriptions correspond with the

numbers above to help you locate the safety feature.

2LOW KICKBACK SAW CHAIN helps significantly

reduce kickback, or the intensity of kickback, due to

specially designed depth gauges and guard links.

4 SPARK ARRESTER SCREEN retains carbon and

other flammable particles over 0.023 inches (0.6mm)

in size from engine exhaust flow. Compliance with

local, state and federal laws and/or regulations gov-

erning the use of a spark arrester screen is the user’s

responsibility. See Safety Precautions for additional

information.

5 CHAIN BRAKE®LEVER / HAND GUARD protects the

operator’s left hand in the event it slips off the front

handle while saw is running.

5 CHAIN BRAKE®is a safety feature designed to reduce

the possibility of injury due to kickback by stopping a

moving saw chain in milliseconds. It is activated by the

CHAIN BRAKE®lever.

10 STOP SWITCH immediately stops the engine when

tripped. Stop switch must be pushed to ON position to

start or restart engine.

11 SAFETY LATCH prevents accidental acceleration of

the engine. Throttle trigger (19) cannot be squeezed

unless the safety latch is depressed.

20 CHAIN CATCHER reduces the danger of injury in the

event saw chain breaks or derails during operation.

The chain catcher is designed to intercept a whipping

chain.

4 5

2 - SAFETY PRECAUTIONS

2-1. KICKBACK SAFETY PRECAUTIONS

WARNING

Kickback may occur when the nose or tip of the guide bar

touches an object, or when the wood closes in and pinch-

es the saw chain in the cut. If bar tip makes contact with

something it may cause a lightning-fast reverse reaction,

kicking the guide bar up and back towards the operator.

Pinching the saw chain along the top of the guide bar may

push the guide bar rapidly back towards the operator. Either

of these reactions may cause you to lose control of the saw,

which could result in serious personal injury. Do not rely

exclusively upon the safety devices built into your saw. As

a chain saw user, you should take several steps to keep

your cutting jobs free from accident or injury.

1. With a basic understanding of kickback, you can

reduce or eliminate the element of surprise. Sudden

surprise contributes to accidents.

2. Keep a good firm grip on the saw with both hands, the

right hand on the rear handle, and the left hand on the

front handle, when the engine is running. Use a firm

grip with thumbs and fingers encircling the chain saw

handles. A firm grip will help you reduce kickback and

maintain control of the saw. Don’t let go.

3. 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, or any other obstruction

which could be hit while you are operating the saw.

4. Cut at high engine speeds.

5. Do not overreach or cut above shoulder height.

6. Follow manufacturer’s sharpening and maintenance

instructions for the saw chain.

7. Only use replacement bars and chains specified by

the manufacturer or the equivalent.

NOTE: Low-kickback saw chain is chain that has met the

kickback performance requirements of ANSI B175.1-2000

(American National Standard for Power Tools Gasoline-

Powered Chain Saws Safety Requirements) when tested

on the representative sample of chain saws below 3.8 c.i.d.

specified in ANSI B175.1-2000.

2-2. OTHER SAFETY PRECAUTIONS

1. 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.

2. DO NOT operate a chain saw when you are fatigued.

3. Use safety footwear, snug-fitting clothing, protective

gloves, and eye, hearing and head protection devices.

4. Use caution when handling fuel. Move the chain saw

at least 9.1m (30 feet) from the fueling point before

starting the engine.

5. DO NOT allow other persons to be near when starting

or cutting with the chain saw. Keep bystanders and

animals out of the work area.

6. DO NOT start cutting until you have a clear work area,

secure footing, and a planned retreat path from the

falling tree.

7. Keep all parts of your body away from the saw chain

when the engine is running.

8. Before you start the engine, make sure that the saw

chain is not contacting anything.

9. Carry the chain saw with the engine stopped, the

guide bar and saw chain to the rear, and the muffler

away from your body.

10. 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.

11. Shut off the engine before setting the chain saw down.

12. 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.

13. When cutting a limb that is under tension, be alert for

springback so that you will not be struck when the ten-

sion in the wood fibers is released.

14. Keep the handles dry, clean, and free of oil or fuel mix-

ture.

15. Operate the chain saw only in well-ventilated areas.

16. DO NOT operate a chain saw in a tree unless you

have been specifically trained to do so.

17. All chain saw service, other than the items listed in the

user manual safety and maintenance instructions,

should be performed by competent chain saw service

personnel.

18. When transporting your chain saw, use the appropri-

ate guide bar scabbard.

19. DO NOT operate your chain saw near or around flam-

mable liquids or gases whether in or out of doors. An

explosion and/or fire may result.

20. USE THE RIGHT TOOL: Cut wood only. Do not use

the chain saw for purposes for which it was not intend-

ed. For example, do not use the chain saw for cutting

plastic, masonry, or non-building materials.

21. Do not attempt to add fuel or lubricating oil to saw

while engine is running.

SAFETY PRECAUTIONS FOR CHAIN SAW USERS

(ANSI B175.1-2000, Annex C. CAN/CSA-Z62.1-03) NOTE: These safety precautions are intended primarily for

the consumer or occasional user. When using a chain saw

for logging purposes, refer to the Code of Federal

Regulations, Section 1910.226(5); 2.5.1., of American

National Standard Safety Requirements for Pulpwood

Logging, ANSI 03.1-1978; and relevant state safety codes.

These models are classified according to CAN/ CSA-

Z62.1-03 as a Class 1C saw. They are intended for infre-

quent use by homeowners, cottagers, and campers, and for

such general applications as clearing, pruning, cutting fire-

wood, etc. They are not intended for prolonged use. If the

intended use involves prolonged periods of operation, this

may cause circulatory problems in the user’s hands due to

vibration. All models covered in this manual employ an anti-

vibration feature for increased comfort and safety.

2-3. GENERAL SAFETY PRECAUTIONS

FOR CHAIN SAW USERS

1. Fatigue causes carelessness. Be more cautious

before rest periods and towards the end of your shift.

2. Personal protective clothing required by your safety

organizations, government regulations, or your

employer should be used. At all times when using a

chain saw, snug-fitting clothing, protective eye wear,

safety footwear, and hand, leg, and hearing protection

should be worn.

3. Before refueling, servicing, or transporting your chain

saw, switch off the engine. To help prevent fire, restart

your chain saw at least 9.1m (30ft) from the fuelling

area.

4. When a chain saw is being used, a fire extinguisher

should be available.

5. When felling, keep at least 2 tree lengths away from

your fellow workers.

6. Plan your work, ensuring an obstacle-free work area

and, in the case of felling, at least one escape path

from the falling tree.

7. Follow the instructions in your operator’s manual for

starting the chain saw and control the chain saw with

a firm grip on both handles when it is in operation.

Keep handles dry, clean, and free of oil.

8. When transporting your chain saw, use the appropri-

ate transportation covers, which should be available

for the guide bar and saw chain.

9. Never operate a chain saw that is damaged or improp-

erly adjusted or that is not completely and securely

assembled. Be sure that the saw chain stops moving

when the power control system trigger is released.

Never adjust the guide bar or saw chain when the

engine is operating.

10. Beware of carbon monoxide poisoning. Operate the

chain saw in well-ventilated areas only.

11. Do not attempt a pruning or limbing operation in a

standing tree unless specifically trained to do so.

12. Guard against kickback. Kickback is the upward

motion of the guide bar that occurs when the saw

chain, at the nose of the guide bar, contacts an object.

Kickback can lead to dangerous loss of control of the

chain saw.

13. A chain saw is intended for two-handed use. Serious

injury to the operator, helpers, and/or bystanders can

result from one-handed operation.

14. See section 2-5, 2-6 for symbol definitions, page 5.

15. When carrying a chain saw with the engine running,

engage the chain brake.

16. Allow your chain saw to cool before refueling, and do

not smoke.

17. Keep other persons or animals a safe distance away

from a running chain saw or the area where a tree is

being felled.

18. Use extreme caution when cutting small brush and

saplings because slender material can catch the saw

chain and be whipped toward you.

19. When cutting a limb that is under tension or compres-

sion, be alert for springback.

20. This gas-powered saw is classified according to CAN/

CSA-Z62.1-03 as a Class 1C saw. It is intended for

infrequent use by homeowners, cottagers, and

campers, and for such general applications as clear-

ing, 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.

2-4. MORE ABOUT KICKBACK

WARNING

DANGER! BEWARE OF KICKBACK!

Kickback can lead to dangerous loss of control of the chain

saw and result in serious or fatal injury to the saw operator

or to anyone standing close by. Always be alert. Rotational

kickback and pinch-kickback are major chain saw opera-

tional dangers and the leading cause of most accidents.

BEWARE OF:

ROTATIONAL KICKBACK (Figure 2-4A)

A = Kickback path

B = Kickback reaction zone

2 - SAFETY PRECAUTIONS

2-4A

4 5

2 - SAFETY PRECAUTIONS

2-1. KICKBACK SAFETY PRECAUTIONS

WARNING

Kickback may occur when the nose or tip of the guide bar

touches an object, or when the wood closes in and pinch-

es the saw chain in the cut. If bar tip makes contact with

something it may cause a lightning-fast reverse reaction,

kicking the guide bar up and back towards the operator.

Pinching the saw chain along the top of the guide bar may

push the guide bar rapidly back towards the operator. Either

of these reactions may cause you to lose control of the saw,

which could result in serious personal injury. Do not rely

exclusively upon the safety devices built into your saw. As

a chain saw user, you should take several steps to keep

your cutting jobs free from accident or injury.

1. With a basic understanding of kickback, you can

reduce or eliminate the element of surprise. Sudden

surprise contributes to accidents.

2. Keep a good firm grip on the saw with both hands, the

right hand on the rear handle, and the left hand on the

front handle, when the engine is running. Use a firm

grip with thumbs and fingers encircling the chain saw

handles. A firm grip will help you reduce kickback and

maintain control of the saw. Don’t let go.

3. 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, or any other obstruction

which could be hit while you are operating the saw.

4. Cut at high engine speeds.

5. Do not overreach or cut above shoulder height.

6. Follow manufacturer’s sharpening and maintenance

instructions for the saw chain.

7. Only use replacement bars and chains specified by

the manufacturer or the equivalent.

NOTE: Low-kickback saw chain is chain that has met the

kickback performance requirements of ANSI B175.1-2000

(American National Standard for Power Tools Gasoline-

Powered Chain Saws Safety Requirements) when tested

on the representative sample of chain saws below 3.8 c.i.d.

specified in ANSI B175.1-2000.

2-2. OTHER SAFETY PRECAUTIONS

1. 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.

2. DO NOT operate a chain saw when you are fatigued.

3. Use safety footwear, snug-fitting clothing, protective

gloves, and eye, hearing and head protection devices.

4. Use caution when handling fuel. Move the chain saw

at least 9.1m (30 feet) from the fueling point before

starting the engine.

5. DO NOT allow other persons to be near when starting

or cutting with the chain saw. Keep bystanders and

animals out of the work area.

6. DO NOT start cutting until you have a clear work area,

secure footing, and a planned retreat path from the

falling tree.

7. Keep all parts of your body away from the saw chain

when the engine is running.

8. Before you start the engine, make sure that the saw

chain is not contacting anything.

9. Carry the chain saw with the engine stopped, the

guide bar and saw chain to the rear, and the muffler

away from your body.

10. 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.

11. Shut off the engine before setting the chain saw down.

12. 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.

13. When cutting a limb that is under tension, be alert for

springback so that you will not be struck when the ten-

sion in the wood fibers is released.

14. Keep the handles dry, clean, and free of oil or fuel mix-

ture.

15. Operate the chain saw only in well-ventilated areas.

16. DO NOT operate a chain saw in a tree unless you

have been specifically trained to do so.

17. All chain saw service, other than the items listed in the

user manual safety and maintenance instructions,

should be performed by competent chain saw service

personnel.

18. When transporting your chain saw, use the appropri-

ate guide bar scabbard.

19. DO NOT operate your chain saw near or around flam-

mable liquids or gases whether in or out of doors. An

explosion and/or fire may result.

20. USE THE RIGHT TOOL: Cut wood only. Do not use

the chain saw for purposes for which it was not intend-

ed. For example, do not use the chain saw for cutting

plastic, masonry, or non-building materials.

21. Do not attempt to add fuel or lubricating oil to saw

while engine is running.

SAFETY PRECAUTIONS FOR CHAIN SAW USERS

(ANSI B175.1-2000, Annex C. CAN/CSA-Z62.1-03) NOTE: These safety precautions are intended primarily for

the consumer or occasional user. When using a chain saw

for logging purposes, refer to the Code of Federal

Regulations, Section 1910.226(5); 2.5.1., of American

National Standard Safety Requirements for Pulpwood

Logging, ANSI 03.1-1978; and relevant state safety codes.

These models are classified according to CAN/ CSA-

Z62.1-03 as a Class 1C saw. They are intended for infre-

quent use by homeowners, cottagers, and campers, and for

such general applications as clearing, pruning, cutting fire-

wood, etc. They are not intended for prolonged use. If the

intended use involves prolonged periods of operation, this

may cause circulatory problems in the user’s hands due to

vibration. All models covered in this manual employ an anti-

vibration feature for increased comfort and safety.

2-3. GENERAL SAFETY PRECAUTIONS

FOR CHAIN SAW USERS

1. Fatigue causes carelessness. Be more cautious

before rest periods and towards the end of your shift.

2. Personal protective clothing required by your safety

organizations, government regulations, or your

employer should be used. At all times when using a

chain saw, snug-fitting clothing, protective eye wear,

safety footwear, and hand, leg, and hearing protection

should be worn.

3. Before refueling, servicing, or transporting your chain

saw, switch off the engine. To help prevent fire, restart

your chain saw at least 9.1m (30ft) from the fuelling

area.

4. When a chain saw is being used, a fire extinguisher

should be available.

5. When felling, keep at least 2 tree lengths away from

your fellow workers.

6. Plan your work, ensuring an obstacle-free work area

and, in the case of felling, at least one escape path

from the falling tree.

7. Follow the instructions in your operator’s manual for

starting the chain saw and control the chain saw with

a firm grip on both handles when it is in operation.

Keep handles dry, clean, and free of oil.

8. When transporting your chain saw, use the appropri-

ate transportation covers, which should be available

for the guide bar and saw chain.

9. Never operate a chain saw that is damaged or improp-

erly adjusted or that is not completely and securely

assembled. Be sure that the saw chain stops moving

when the power control system trigger is released.

Never adjust the guide bar or saw chain when the

engine is operating.

10. Beware of carbon monoxide poisoning. Operate the

chain saw in well-ventilated areas only.

11. Do not attempt a pruning or limbing operation in a

standing tree unless specifically trained to do so.

12. Guard against kickback. Kickback is the upward

motion of the guide bar that occurs when the saw

chain, at the nose of the guide bar, contacts an object.

Kickback can lead to dangerous loss of control of the

chain saw.

13. A chain saw is intended for two-handed use. Serious

injury to the operator, helpers, and/or bystanders can

result from one-handed operation.

14. See section 2-5, 2-6 for symbol definitions, page 5.

15. When carrying a chain saw with the engine running,

engage the chain brake.

16. Allow your chain saw to cool before refueling, and do

not smoke.

17. Keep other persons or animals a safe distance away

from a running chain saw or the area where a tree is

being felled.

18. Use extreme caution when cutting small brush and

saplings because slender material can catch the saw

chain and be whipped toward you.

19. When cutting a limb that is under tension or compres-

sion, be alert for springback.

20. This gas-powered saw is classified according to CAN/

CSA-Z62.1-03 as a Class 1C saw. It is intended for

infrequent use by homeowners, cottagers, and

campers, and for such general applications as clear-

ing, 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.

2-4. MORE ABOUT KICKBACK

WARNING

DANGER! BEWARE OF KICKBACK!

Kickback can lead to dangerous loss of control of the chain

saw and result in serious or fatal injury to the saw operator

or to anyone standing close by. Always be alert. Rotational

kickback and pinch-kickback are major chain saw opera-

tional dangers and the leading cause of most accidents.

BEWARE OF:

ROTATIONAL KICKBACK (Figure 2-4A)

A = Kickback path

B = Kickback reaction zone

2 - SAFETY PRECAUTIONS

2-4A

3-1.TOOLS FOR ASSEMBLY (YOUR SAW

WAS ASSEMBLED AT THE FACTORY)

You will need these tools to assemble your chain saw:

1. Combination wrench-screwdriver (contained in your

user’s kit or in lid of carry case).

2. Heavy duty work gloves (user supplied).

3-2.ASSEMBLY REQUIREMENTS

Your new chain saw will require adjustment of chain, filling

the fuel tank with correct fuel mixture and filling the oil tank

with lubricating oil before the unit is ready for operation.

WARNING

DO NOT start saw engine until unit is properly prepared.

Read the entire user manual before attempting to operate

your unit. Pay particular attention to all safety precautions.

Your user manual is both a reference guide and handbook

provided to furnish you with general information to assem-

ble, operate and maintain your saw.

3-3.GUIDE BAR / SAW CHAIN / CLUTCH

COVER REMOVAL AND INSTALLATION

WARNING

Always wear protective gloves when handling chain.

TO INSTALL GUIDE BAR:

CAUTION

To ensure the bar and chain receive oil, ONLY USE THE

ORIGINAL STYLE BAR with the oil passage hole (A) as

illustrated above (Figure 3-3A).

1. Make sure the CHAIN BRAKE®lever is pulled back into

the DISENGAGED position (Figure 3-3B)

2. Remove the bar retaining nut (B1) and the screw (B2)

at rear of clutch cover (C). Remove clutch cover (C) by

pulling straight out, some force may be required.

(Figure 3-3C)

3. Raise tip of bar so that it disengages from adjusting

tang.

4. Carefully disengage chain from bar and remove.

5. Remove bar from saw by lifting it off of bar bolt.

6. Using a screwdriver or the wrench supplied in the

user’s kit or in the upper half of the carrying case. Turn

the adjustment screw (D) COUNTERCLOCKWISE until

the TANG (E) (projecting prong) is to the end of its trav-

el (Figure 3-3D).

7. Place the slotted end of the guide bar over the bar bolt

(F). Slide guide bar behind clutch drum (G) until the

guide bar stops (Figure 3-3E).

THE PUSH (PINCH-KICKBACK) AND PULL

REACTIONS (Figure 2-4B)

A = Pull

B = Solid objects

C = Push

KICKBACK may occur when the NOSE or TIP of the guide

bar touches an object, or when wood closes in and pinch-

es 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 BOTTOM of the guide

bar may PULL the saw forward away from the operator.

PINCHING the saw chain along the TOP of the guide bar

may PUSH the guide bar rapidly back toward the operator.

Any of these reactions may cause you to lose control of the

saw, which could result in serious personal injury.

2-5. KICKBACK SAFETY LABELS

Your McCulloch Chain Saw is provided with a safety label

located on the chain brake lever. This label, along with the

safety instructions on these pages, should be carefully read

before attempting to operate this unit.

HOW TO READ SYMBOLS AND COLORS:

WARNING

Used to warn that an unsafe procedure should not be per-

formed.

RECOMMENDED

Recommended cutting procedures.

WARNING (Figure 2-5A)

1. Worst-case computed kickback angle.

2. Avoid bar nose contact.

3. Beware of kickback.

4. Do not attempt to hold saw with one hand.

RECOMMENDED

5. Hold saw properly with both hands.

GREEN

RED

2-4B

6 7

The engine exhaust from this product contains chemi-

cals known to the State of California to cause cancer,

birth defects, or other reproductive harm.

WARNING

Max. CKA 45

9052-MD0905

1 2 3 4 5

2-5A

2-6. INTERNATIONAL SYMBOLS

Wear head, eye and hearing protection.

Wear gloves to protect your hands.

Wear safety boots to protect against electric shock.

Read User Manual. Use of these personal safety items is

highly recommended to reduce the risk

of accidental injury.

2 - SAFETY PRECAUTIONS 3 - ASSEMBLY INSTRUCTIONS

3-3A

3-3B

3-3C

3-3D

3-3E

3-1.TOOLS FOR ASSEMBLY (YOUR SAW

WAS ASSEMBLED AT THE FACTORY)

You will need these tools to assemble your chain saw:

1. Combination wrench-screwdriver (contained in your

user’s kit or in lid of carry case).

2. Heavy duty work gloves (user supplied).

3-2.ASSEMBLY REQUIREMENTS

Your new chain saw will require adjustment of chain, filling

the fuel tank with correct fuel mixture and filling the oil tank

with lubricating oil before the unit is ready for operation.

WARNING

DO NOT start saw engine until unit is properly prepared.

Read the entire user manual before attempting to operate

your unit. Pay particular attention to all safety precautions.

Your user manual is both a reference guide and handbook

provided to furnish you with general information to assem-

ble, operate and maintain your saw.

3-3.GUIDE BAR / SAW CHAIN / CLUTCH

COVER REMOVAL AND INSTALLATION

WARNING

Always wear protective gloves when handling chain.

TO INSTALL GUIDE BAR:

CAUTION

To ensure the bar and chain receive oil, ONLY USE THE

ORIGINAL STYLE BAR with the oil passage hole (A) as

illustrated above (Figure 3-3A).

1. Make sure the CHAIN BRAKE®lever is pulled back into

the DISENGAGED position (Figure 3-3B)

2. Remove the bar retaining nut (B1) and the screw (B2)

at rear of clutch cover (C). Remove clutch cover (C) by

pulling straight out, some force may be required.

(Figure 3-3C)

3. Raise tip of bar so that it disengages from adjusting

tang.

4. Carefully disengage chain from bar and remove.

5. Remove bar from saw by lifting it off of bar bolt.

6. Using a screwdriver or the wrench supplied in the

user’s kit or in the upper half of the carrying case. Turn

the adjustment screw (D) COUNTERCLOCKWISE until

the TANG (E) (projecting prong) is to the end of its trav-

el (Figure 3-3D).

7. Place the slotted end of the guide bar over the bar bolt

(F). Slide guide bar behind clutch drum (G) until the

guide bar stops (Figure 3-3E).

THE PUSH (PINCH-KICKBACK) AND PULL

REACTIONS (Figure 2-4B)

A = Pull

B = Solid objects

C = Push

KICKBACK may occur when the NOSE or TIP of the guide

bar touches an object, or when wood closes in and pinch-

es 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 BOTTOM of the guide

bar may PULL the saw forward away from the operator.

PINCHING the saw chain along the TOP of the guide bar

may PUSH the guide bar rapidly back toward the operator.

Any of these reactions may cause you to lose control of the

saw, which could result in serious personal injury.

2-5. KICKBACK SAFETY LABELS

Your McCulloch Chain Saw is provided with a safety label

located on the chain brake lever. This label, along with the

safety instructions on these pages, should be carefully read

before attempting to operate this unit.

HOW TO READ SYMBOLS AND COLORS:

WARNING

Used to warn that an unsafe procedure should not be per-

formed.

RECOMMENDED

Recommended cutting procedures.

WARNING (Figure 2-5A)

1. Worst-case computed kickback angle.

2. Avoid bar nose contact.

3. Beware of kickback.

4. Do not attempt to hold saw with one hand.

RECOMMENDED

5. Hold saw properly with both hands.

GREEN

RED

2-4B

6 7

The engine exhaust from this product contains chemi-

cals known to the State of California to cause cancer,

birth defects, or other reproductive harm.

WARNING

Max. CKA 45

9052-MD0905

1 2 3 4 5

2-5A

2-6. INTERNATIONAL SYMBOLS

Wear head, eye and hearing protection.

Wear gloves to protect your hands.

Wear safety boots to protect against electric shock.

Read User Manual. Use of these personal safety items is

highly recommended to reduce the risk

of accidental injury.

2 - SAFETY PRECAUTIONS 3 - ASSEMBLY INSTRUCTIONS

3-3A

3-3B

3-3C

3-3D

3-3E

8 9

TO INSTALL SAW CHAIN:

WARNING

Always wear heavy duty gloves when handling saw chain

or making saw chain adjustments.

1. Spread chain out in a loop with cutting edges (A)

pointing CLOCKWISE around loop (Figure 3-3F).

2. Slip the chain around the sprocket (B) behind the

clutch (C). Make sure the links fit between the sprock-

et teeth (Figure 3-3G).

3. Guide the drive links into the groove (D) and around

the end of the bar (Figure 3-3G).

NOTE: The saw chain may droop slightly on the lower part

of bar. This is normal.

4. Pull guide bar forward until chain is snug. Ensure all

drive links are in the bar groove.

5. Install the clutch cover making sure the tang is posi-

tioned in the lower hole in the guide bar. Make sure

the chain does not slip off of the bar.Install the bar

retaining nuts hand tight and follow tension adjust-

ment instructions in Section 3-4.

NOTE: The guide bar retaining nuts are installed only hand

tight at this point because saw chain adjustment is

required. Follow instructions in Section 3-4, Saw Chain

Tension Adjustment.

3-4. SAW CHAIN TENSION ADJUSTMENT

Proper tension of saw chain is extremely important and

must be checked before starting, as well as during any cut-

ting operation.

Taking the time to make needed adjustments to the saw

chain will result in improved cutting performance and pro-

longed chain life.

WARNING

Always wear heavy duty gloves when handling saw chain

or making saw chain adjustments.

TO ADJUST SAW CHAIN:

1. Hold nose of guide bar up and turn adjustment screw

(D) CLOCKWISE to increase chain tension. Turning

screw COUNTERCLOCKWISE will decrease amount

of tension on chain. Ensure the chain fits snugly all the

way around the guide bar (Figure 3-4A).

2. After making adjustment, and while still holding nose

of bar in the uppermost position, tighten the bar

retaining nuts securely. Chain has proper tension

when it has a snug fit all around and can be pulled

around by gloved hand.

NOTE: If chain is difficult to rotate on guide bar or if it binds,

too much tension has been applied. This requires minor

adjustment as follows:

A. Loosen the bar retaining nuts so it is finger tight.

Decrease tension by turning the bar adjustment screw

COUNTERCLOCKWISE slowly.Move chain back and

forth on bar. Continue to adjust until chain rotates

freely, but fits snugly.Increase tension by turning bar

adjustment screw CLOCKWISE.

B. When saw chain has proper tension, hold nose of bar

in uppermost position and tighten the bar retaining nut

securely.

3 - ASSEMBLY INSTRUCTIONS

CAUTION

A new saw chain stretches, requiring adjustment after as

few as 5 cuts. This is normal with a new chain, and the

interval between future adjustments will lengthen quickly.

CAUTION

If saw chain is TOO LOOSE or TOO TIGHT, the sprocket,

bar, chain, and crankshaft bearings will wear more rapidly.

Study Figure 3-4B for information concerning correct cold

tension (A), correct warm tension (B), and as a guide for

when saw chain needs adjustment (C).

3-5. CHAIN BRAKE®MECHANICAL TEST

Your chain saw is equipped with a CHAIN BRAKE®that

reduces possibility of injury due to kickback. The brake is

activated if pressure is applied against brake lever when,

as in the event of kickback, operator’s hand strikes the

lever. When the brake is actuated, chain movement stops

abruptly.

WARNING

The purpose of the CHAIN BRAKE®is to reduce the possi-

bility of injury due to kickback; however, it cannot provide

the intended measure of protection if the saw is operated

carelessly.

Always test the CHAIN BRAKE®before using your saw and

periodically while on the job.

To Test CHAIN BRAKE®:

1. The CHAIN BRAKE®is DISENGAGED (chain can

move) when BRAKE LEVER IS PULLED BACK AND

LOCKED (Figure 3-5A).

2. The CHAIN BRAKE®is ENGAGED (chain is stopped)

when brake lever is in forward position. You should not

be able to move chain (Figure 3-5B).

NOTE: The brake lever should snap into both positions. If

strong resistance is felt, or lever does not move into either

position, do not use your saw. Take it immediately to an

Authorized Service Center for repair.

3 - ASSEMBLY INSTRUCTIONS

3-3F

3-3G

3-4A

3-4B 3-5A

3-5B

8 9

TO INSTALL SAW CHAIN:

WARNING

Always wear heavy duty gloves when handling saw chain

or making saw chain adjustments.

1. Spread chain out in a loop with cutting edges (A)

pointing CLOCKWISE around loop (Figure 3-3F).

2. Slip the chain around the sprocket (B) behind the

clutch (C). Make sure the links fit between the sprock-

et teeth (Figure 3-3G).

3. Guide the drive links into the groove (D) and around

the end of the bar (Figure 3-3G).

NOTE: The saw chain may droop slightly on the lower part

of bar. This is normal.

4. Pull guide bar forward until chain is snug. Ensure all

drive links are in the bar groove.

5. Install the clutch cover making sure the tang is posi-

tioned in the lower hole in the guide bar. Make sure

the chain does not slip off of the bar.Install the bar

retaining nuts hand tight and follow tension adjust-

ment instructions in Section 3-4.

NOTE: The guide bar retaining nuts are installed only hand

tight at this point because saw chain adjustment is

required. Follow instructions in Section 3-4, Saw Chain

Tension Adjustment.

3-4. SAW CHAIN TENSION ADJUSTMENT

Proper tension of saw chain is extremely important and

must be checked before starting, as well as during any cut-

ting operation.

Taking the time to make needed adjustments to the saw

chain will result in improved cutting performance and pro-

longed chain life.

WARNING

Always wear heavy duty gloves when handling saw chain

or making saw chain adjustments.

TO ADJUST SAW CHAIN:

1. Hold nose of guide bar up and turn adjustment screw

(D) CLOCKWISE to increase chain tension. Turning

screw COUNTERCLOCKWISE will decrease amount

of tension on chain. Ensure the chain fits snugly all the

way around the guide bar (Figure 3-4A).

2. After making adjustment, and while still holding nose

of bar in the uppermost position, tighten the bar

retaining nuts securely. Chain has proper tension

when it has a snug fit all around and can be pulled

around by gloved hand.

NOTE: If chain is difficult to rotate on guide bar or if it binds,

too much tension has been applied. This requires minor

adjustment as follows:

A. Loosen the bar retaining nuts so it is finger tight.

Decrease tension by turning the bar adjustment screw

COUNTERCLOCKWISE slowly.Move chain back and

forth on bar. Continue to adjust until chain rotates

freely, but fits snugly.Increase tension by turning bar

adjustment screw CLOCKWISE.

B. When saw chain has proper tension, hold nose of bar

in uppermost position and tighten the bar retaining nut

securely.

3 - ASSEMBLY INSTRUCTIONS

CAUTION

A new saw chain stretches, requiring adjustment after as

few as 5 cuts. This is normal with a new chain, and the

interval between future adjustments will lengthen quickly.

CAUTION

If saw chain is TOO LOOSE or TOO TIGHT, the sprocket,

bar, chain, and crankshaft bearings will wear more rapidly.

Study Figure 3-4B for information concerning correct cold

tension (A), correct warm tension (B), and as a guide for

when saw chain needs adjustment (C).

3-5. CHAIN BRAKE®MECHANICAL TEST

Your chain saw is equipped with a CHAIN BRAKE®that

reduces possibility of injury due to kickback. The brake is

activated if pressure is applied against brake lever when,

as in the event of kickback, operator’s hand strikes the

lever. When the brake is actuated, chain movement stops

abruptly.

WARNING

The purpose of the CHAIN BRAKE®is to reduce the possi-

bility of injury due to kickback; however, it cannot provide

the intended measure of protection if the saw is operated

carelessly.

Always test the CHAIN BRAKE®before using your saw and

periodically while on the job.

To Test CHAIN BRAKE®:

1. The CHAIN BRAKE®is DISENGAGED (chain can

move) when BRAKE LEVER IS PULLED BACK AND

LOCKED (Figure 3-5A).

2. The CHAIN BRAKE®is ENGAGED (chain is stopped)

when brake lever is in forward position. You should not

be able to move chain (Figure 3-5B).

NOTE: The brake lever should snap into both positions. If

strong resistance is felt, or lever does not move into either

position, do not use your saw. Take it immediately to an

Authorized Service Center for repair.

3 - ASSEMBLY INSTRUCTIONS

3-3F

3-3G

3-4A

3-4B 3-5A

3-5B

10 11

4 - FUEL AND LUBRICATION

4-1. FUEL

Use regular grade unleaded gasoline mixed with Genuine

Factory Parts 40:1 custom 2-cycle engine oil for best

results. Use mixing ratios in Section 4-3.

Never use straight gasoline in your unit.This will cause

permanent engine damage and void the manufactur-

er’s warranty for that product. Never use a fuel mixture that

has been stored for over 90 days.

If 2-cycle lubricant other than Genuine Factory Parts

Custom Lubricant is to be used, it must be a premium

grade oil for 2-cycle air cooled engines mixed at a 40:1

ratio. Do not use any 2-cycle oil product with a recommend-

ed mixing ratio of 100:1. If insufficient lubrication is the

cause of engine damage, it voids the manufacturer’s

engine warranty for that occurrence.

4-2. MIXING FUEL

Mix fuel with Genuine Factory Parts brand 2 cycle oil in an

approved container. Use mixing table for correct ratio of fuel

to oil. Shake container to ensure thorough mix.

Lack of lubrication voids engine warranty.

4-3.FUEL AND LUBRICATION SYMBOLS

FUEL MIXING TABLE

4-4.RECOMMENDED FUELS

Some conventional gasolines are being blended with oxy-

genates such as alcohol or an ether compound to meet

clean air standards. Your McCulloch engine is designed to

operate satisfactorily on any gasoline intended for automo-

tive use including oxygenated gasolines.

4-5.CHAIN AND BAR LUBRICATION

Always refill the chain oil tank each time the fuel tank is

refilled. We recommend using Genuine Factory Parts

Chain, Bar and Sprocket Oil, which contains additives to

reduce friction and wear and to assist in the prevention of

pitch formation on the bar and chain.

Gasoline and Oil

Mix 40:1

Oil Only

5 - OPERATING INSTRUCTIONS

5-1.ENGINE PRE-START CHECKS

WARNING

Never start or operate the saw unless the bar and chain are

properly installed.

1. Fill the fuel tank (A) with correct fuel mixture (Figure 5-

1A).

2. Fill the oil tank (B) with correct chain and bar oil (Figure

5-1A).

3. Be certain the CHAIN BRAKE®is disengaged (C)

before starting unit (Figure 5-1A).

NOTE: See page 9 Fig. 3-5A & 3-5B.

5-2.TO START ENGINE

1. Press red STOP switch to the “I” ON position (Fig. 5-

2A).

2. Pull the blue lever (D) out as far as it will go until the

blue lever stays out (Fig. 5-2B). This advances the throt-

tle so you do not have to hold the trigger while starting.

3. Fully press and release the primer bulb (E) 10 times,

slowly. Some amount of fuel should be visible in the

primer bulb (Fig. 5-2C). If you can’t see fuel in the bulb,

press and release the bulb as many times as it takes

before you can see fuel in it.

4. Place the saw on a firm flat surface. Hold saw firmly as

shown (Fig. 5-2D).

Pull the rope with a controlled and steady motion 4

times.Then move the blue lever (F) all the way in (Fig. 5-

2E).

NOTE: The unit uses Smooth Pull™, which

significantly reduces the effort required to start the engine.

You must pull the starter rope out far enough to hear the

engine attempt to start. There is no need to pull the rope

briskly-- there is no harsh resistance when pulling. Be

aware that this starting method is vastly different from (and

much easier than) what you may be used to.

6. Hold saw firmly and pull rope until saw starts.This

could take 4 more pulls.

7. Let the saw warm up for 10 seconds. Depress and

release trigger (G) for idle (Fig. 5-2F).

IMPORTANT IDLING INFORMATION

In some cases due to operating conditions (altitude, tem-

perature etc.) your chain saw may need a slight adjustment

to the idle speed.

After warm up - See the User's Manual section 5-2, step 7

- If unit does not Idle after restarting 2 times, follow these

steps to adjust idle.

1. Idle adjustment access (H). (Figure 5-2G)

2. Using a Phillips or slotted screwdriver - turn screw 1/4

to 1/2 turn clockwise (to the right). Unit should then idle

properly. (Figure 5-2H)

NOTE: If chain turns while idling - turn screw back to the

left until chain stops and unit continues to idle.

5-1A

5-2A 5-2B

5-2C 5-2D

5-2E 5-2F

5-2G 5-2H

10 11

4 - FUEL AND LUBRICATION

4-1. FUEL

Use regular grade unleaded gasoline mixed with Genuine

Factory Parts 40:1 custom 2-cycle engine oil for best

results. Use mixing ratios in Section 4-3.

Never use straight gasoline in your unit.This will cause

permanent engine damage and void the manufactur-

er’s warranty for that product. Never use a fuel mixture that

has been stored for over 90 days.

If 2-cycle lubricant other than Genuine Factory Parts

Custom Lubricant is to be used, it must be a premium

grade oil for 2-cycle air cooled engines mixed at a 40:1

ratio. Do not use any 2-cycle oil product with a recommend-

ed mixing ratio of 100:1. If insufficient lubrication is the

cause of engine damage, it voids the manufacturer’s

engine warranty for that occurrence.

4-2. MIXING FUEL

Mix fuel with Genuine Factory Parts brand 2 cycle oil in an

approved container. Use mixing table for correct ratio of fuel

to oil. Shake container to ensure thorough mix.

Lack of lubrication voids engine warranty.

4-3.FUEL AND LUBRICATION SYMBOLS

FUEL MIXING TABLE

4-4.RECOMMENDED FUELS

Some conventional gasolines are being blended with oxy-

genates such as alcohol or an ether compound to meet

clean air standards. Your McCulloch engine is designed to

operate satisfactorily on any gasoline intended for automo-

tive use including oxygenated gasolines.

4-5.CHAIN AND BAR LUBRICATION

Always refill the chain oil tank each time the fuel tank is

refilled. We recommend using Genuine Factory Parts

Chain, Bar and Sprocket Oil, which contains additives to

reduce friction and wear and to assist in the prevention of

pitch formation on the bar and chain.

Gasoline and Oil

Mix 40:1

Oil Only

5 - OPERATING INSTRUCTIONS

5-1.ENGINE PRE-START CHECKS

WARNING

Never start or operate the saw unless the bar and chain are

properly installed.

1. Fill the fuel tank (A) with correct fuel mixture (Figure 5-

1A).

2. Fill the oil tank (B) with correct chain and bar oil (Figure

5-1A).

3. Be certain the CHAIN BRAKE®is disengaged (C)

before starting unit (Figure 5-1A).

NOTE: See page 9 Fig. 3-5A & 3-5B.

5-2.TO START ENGINE

1. Press red STOP switch to the “I” ON position (Fig. 5-

2A).

2. Pull the blue lever (D) out as far as it will go until the

blue lever stays out (Fig. 5-2B). This advances the throt-

tle so you do not have to hold the trigger while starting.

3. Fully press and release the primer bulb (E) 10 times,

slowly. Some amount of fuel should be visible in the

primer bulb (Fig. 5-2C). If you can’t see fuel in the bulb,

press and release the bulb as many times as it takes

before you can see fuel in it.

4. Place the saw on a firm flat surface. Hold saw firmly as

shown (Fig. 5-2D).

Pull the rope with a controlled and steady motion 4

times.Then move the blue lever (F) all the way in (Fig. 5-

2E).

NOTE: The unit uses Smooth Pull™, which

significantly reduces the effort required to start the engine.

You must pull the starter rope out far enough to hear the

engine attempt to start. There is no need to pull the rope

briskly-- there is no harsh resistance when pulling. Be

aware that this starting method is vastly different from (and

much easier than) what you may be used to.

6. Hold saw firmly and pull rope until saw starts.This

could take 4 more pulls.

7. Let the saw warm up for 10 seconds. Depress and

release trigger (G) for idle (Fig. 5-2F).

IMPORTANT IDLING INFORMATION

In some cases due to operating conditions (altitude, tem-

perature etc.) your chain saw may need a slight adjustment

to the idle speed.

After warm up - See the User's Manual section 5-2, step 7

- If unit does not Idle after restarting 2 times, follow these

steps to adjust idle.

1. Idle adjustment access (H). (Figure 5-2G)

2. Using a Phillips or slotted screwdriver - turn screw 1/4

to 1/2 turn clockwise (to the right). Unit should then idle

properly. (Figure 5-2H)

NOTE: If chain turns while idling - turn screw back to the

left until chain stops and unit continues to idle.

5-1A

5-2A 5-2B

5-2C 5-2D

5-2E 5-2F

5-2G 5-2H

12 13

5 - OPERATING INSTRUCTIONS

5-3.RE-STARTING A WARM ENGINE

1. Make sure switch is on.

2. Pull blue choke all the way out and then push it back

in-This advances the throttle so you do not have to

hold trigger during starting.

3. Push primer10x or until you see fuel in the bulb.

4. Pull rope until engine starts.

5. Depress and release trigger for idle.

5-4.TO STOP ENGINE

1. Release trigger and allow engine to return to idle

speed.

2. Press STOP switch down to stop engine Figure 5-4A.

NOTE: For emergency stopping, simply activate CHAIN

BRAKE®and move STOP switch down.

INERTIA CHAIN BRAKE®ACTION :

NOTE: THIS SAW IS EQUIPPED WITH AN INERTIA

CHAIN BRAKE.IF THE SAW KICKS BACK WHILE IN USE,

THE INERTIA OF THE MOVING SAW WILL ACTIVATE

THE BRAKE. A BRAKE BAND AROUND THE CLUTCH

DRUM ACTIVATES AND STOPS THE MOVING CHAIN.

5-5.CHAIN BRAKE®OPERATIONAL TEST

Test the CHAIN BRAKE®periodically to ensure proper

function.

Perform a CHAIN BRAKE®test prior to initial cutting, follow-

ing extensive cutting, and definitely following any CHAIN

BRAKE®service.

TEST CHAIN BRAKE®AS FOLLOWS:

1. Place saw on a clear, firm, flat surface.

2. Start engine.

3. Grasp the rear handle (A) with your right hand (Figure

5-5A).

4. With your left hand, hold the front handle (B) [not

CHAIN BRAKE®lever (C)] firmly (Figure 5-5A).

5. Squeeze the throttle trigger to 1/3 throttle, then imme-

diately activate the CHAIN BRAKE®lever (C) (Figure 5-

5A).

WARNING

Activate the CHAIN BRAKE®slowly and deliberately. Keep

the chain from touching anything; don’t let the saw tip for-

ward.

6. Chain should stop abruptly. When it does, immediately

release the throttle trigger.

WARNING

If chain does not stop, turn engine off and take your unit to

the nearest Authorized Service Center for service.

7. If CHAIN BRAKE®functions properly, turn the engine

off and return the CHAIN BRAKE®to the DISEN-

GAGED position.

5-6.SAW CHAIN / BAR LUBRICATION

Adequate lubrication of the saw chain is essential at all

times to minimize friction with the guide bar.

Never starve the bar and chain of oil. Running the saw with

too little oil will decrease cutting efficiency, shorten saw

chain life, cause rapid dulling of chain, and cause exces-

sive wear of bar from overheating. Too little oil is evidenced

by smoke, bar discoloration or pitch build-up.

NOTE: Saw chain stretches during use, particularly when it

is new, and it will occasionally be necessary to adjust and

tighten it. New chain will require adjustment after about 5

minutes of operation.

5-7.AUTOMATIC OILER

Your chain saw is equipped with an automatic clutch driven

oiler system. The oiler automatically delivers the proper

amount of oil to the bar and chain. As the engine speed

increases, so does the oil flow to the bar pad. There is no

flow adjustment. The oil reservoir will run out at approxi-

mately the same time as the fuel supply runs out.

5-4A

5-5A

6 - GENERAL CUTTING INSTRUCTIONS

6-1.FELLING

Felling is the term for cutting down a tree. Small trees up to

6-7 inches (15-18cm) in diameter are usually cut in a single

cut. Larger trees require notch cuts. Notch cuts determine

the direction the tree will fall.

FELLING A TREE:

WARNING

A retreat path (A) should be planned and cleared as nec-

essary before cuts are started. The retreat path should

extend back and diagonally to the rear of the expected line

of fall, as illustrated in Figure 6-1A.

CAUTION

If felling a tree on sloping ground, the chain saw operator

should keep on the uphill side of the terrain, as the tree is

likely to roll or slide downhill after it is felled.

NOTE: Direction of fall (B) is controlled by the notching cut.

Before any cuts are made, consider the location of larger

branches and natural lean of the tree to determine the way

the tree will fall.

WARNING

Do not cut down a tree during high or changing winds or if

there is a danger to property.Consult a tree professional.

Do not cut down a tree if there is a danger of striking utility

wires; notify the utility company before making any cuts.

GENERAL GUIDELINES FOR FELLING

TREES:

Normally felling consists of 2 main cutting operations,

notching (C) and making the felling cut (D).

Start making the upper notch cut (C) on the side of the tree

facing the felling direction (E). Be sure you don t make the

lower cut too deep into the trunk.

The notch (C) should be deep enough to create a hinge (F)

of sufficient width and strength. The notch should be wide

enough to direct the fall of the tree for as long as possible.

WARNING

Never walk in front of a tree that has been notched.

Make the felling cut (D) from the other side of the tree and

1.5 - 2.0 inches (3-5 cm) above the edge of the notch (C)

(Figure 6-1B).

Never saw completely through the trunk. Always leave a

hinge. The hinge guides the tree. If the trunk is completely

cut through, control over the felling direction is lost.

Insert a wedge or felling lever in the cut well before the tree

becomes unstable and starts to move. This will prevent the

guidebar from binding in the felling cut if you have mis-

judged the falling direction. Make sure no bystanders have

entered the range of the falling tree before you push it over.

WARNING

Before making the final cut, always recheck the area for

bystanders, animals or obstacles.

FELLING CUT:

1. Use wooden or plastic wedges (G) to prevent binding

the bar or chain (H) in the cut. Wedges also control

felling (Figure 6-1C).

2. When diameter of wood being cut is greater than the

bar length, make 2 cuts as shown (Figure 6-1D).

WARNING

As the felling cut gets close to the hinge, the tree should

begin to fall. When tree begins to fall, remove saw from cut,

stop engine, put chain saw down, and leave area along

retreat path (Figure 6-1A).

6-1D

6-1A

6-1B

6-1C

12 13

5 - OPERATING INSTRUCTIONS

5-3.RE-STARTING A WARM ENGINE

1. Make sure switch is on.

2. Pull blue choke all the way out and then push it back

in-This advances the throttle so you do not have to

hold trigger during starting.

3. Push primer10x or until you see fuel in the bulb.

4. Pull rope until engine starts.

5. Depress and release trigger for idle.

5-4.TO STOP ENGINE

1. Release trigger and allow engine to return to idle

speed.

2. Press STOP switch down to stop engine Figure 5-4A.

NOTE: For emergency stopping, simply activate CHAIN

BRAKE®and move STOP switch down.

INERTIA CHAIN BRAKE®ACTION :

NOTE: THIS SAW IS EQUIPPED WITH AN INERTIA

CHAIN BRAKE.IF THE SAW KICKS BACK WHILE IN USE,

THE INERTIA OF THE MOVING SAW WILL ACTIVATE

THE BRAKE. A BRAKE BAND AROUND THE CLUTCH

DRUM ACTIVATES AND STOPS THE MOVING CHAIN.

5-5.CHAIN BRAKE®OPERATIONAL TEST

Test the CHAIN BRAKE®periodically to ensure proper

function.

Perform a CHAIN BRAKE®test prior to initial cutting, follow-

ing extensive cutting, and definitely following any CHAIN

BRAKE®service.

TEST CHAIN BRAKE®AS FOLLOWS:

1. Place saw on a clear, firm, flat surface.

2. Start engine.

3. Grasp the rear handle (A) with your right hand (Figure

5-5A).

4. With your left hand, hold the front handle (B) [not

CHAIN BRAKE®lever (C)] firmly (Figure 5-5A).

5. Squeeze the throttle trigger to 1/3 throttle, then imme-

diately activate the CHAIN BRAKE®lever (C) (Figure 5-

5A).

WARNING

Activate the CHAIN BRAKE®slowly and deliberately. Keep

the chain from touching anything; don’t let the saw tip for-

ward.

6. Chain should stop abruptly. When it does, immediately

release the throttle trigger.

WARNING

If chain does not stop, turn engine off and take your unit to

the nearest Authorized Service Center for service.

7. If CHAIN BRAKE®functions properly, turn the engine

off and return the CHAIN BRAKE®to the DISEN-

GAGED position.

5-6.SAW CHAIN / BAR LUBRICATION

Adequate lubrication of the saw chain is essential at all

times to minimize friction with the guide bar.

Never starve the bar and chain of oil. Running the saw with

too little oil will decrease cutting efficiency, shorten saw

chain life, cause rapid dulling of chain, and cause exces-

sive wear of bar from overheating. Too little oil is evidenced

by smoke, bar discoloration or pitch build-up.

NOTE: Saw chain stretches during use, particularly when it

is new, and it will occasionally be necessary to adjust and

tighten it. New chain will require adjustment after about 5

minutes of operation.

5-7.AUTOMATIC OILER

Your chain saw is equipped with an automatic clutch driven

oiler system. The oiler automatically delivers the proper

amount of oil to the bar and chain. As the engine speed

increases, so does the oil flow to the bar pad. There is no

flow adjustment. The oil reservoir will run out at approxi-

mately the same time as the fuel supply runs out.

5-4A

5-5A

6 - GENERAL CUTTING INSTRUCTIONS

6-1.FELLING

Felling is the term for cutting down a tree. Small trees up to

6-7 inches (15-18cm) in diameter are usually cut in a single

cut. Larger trees require notch cuts. Notch cuts determine

the direction the tree will fall.

FELLING A TREE:

WARNING

A retreat path (A) should be planned and cleared as nec-

essary before cuts are started. The retreat path should

extend back and diagonally to the rear of the expected line

of fall, as illustrated in Figure 6-1A.

CAUTION

If felling a tree on sloping ground, the chain saw operator

should keep on the uphill side of the terrain, as the tree is

likely to roll or slide downhill after it is felled.

NOTE: Direction of fall (B) is controlled by the notching cut.

Before any cuts are made, consider the location of larger

branches and natural lean of the tree to determine the way

the tree will fall.

WARNING

Do not cut down a tree during high or changing winds or if

there is a danger to property.Consult a tree professional.

Do not cut down a tree if there is a danger of striking utility

wires; notify the utility company before making any cuts.

GENERAL GUIDELINES FOR FELLING

TREES:

Normally felling consists of 2 main cutting operations,

notching (C) and making the felling cut (D).

Start making the upper notch cut (C) on the side of the tree

facing the felling direction (E). Be sure you don t make the

lower cut too deep into the trunk.

The notch (C) should be deep enough to create a hinge (F)

of sufficient width and strength. The notch should be wide

enough to direct the fall of the tree for as long as possible.

WARNING

Never walk in front of a tree that has been notched.

Make the felling cut (D) from the other side of the tree and

1.5 - 2.0 inches (3-5 cm) above the edge of the notch (C)

(Figure 6-1B).

Never saw completely through the trunk. Always leave a

hinge. The hinge guides the tree. If the trunk is completely

cut through, control over the felling direction is lost.

Insert a wedge or felling lever in the cut well before the tree

becomes unstable and starts to move. This will prevent the

guidebar from binding in the felling cut if you have mis-

judged the falling direction. Make sure no bystanders have

entered the range of the falling tree before you push it over.

WARNING

Before making the final cut, always recheck the area for

bystanders, animals or obstacles.

FELLING CUT:

1. Use wooden or plastic wedges (G) to prevent binding

the bar or chain (H) in the cut. Wedges also control

felling (Figure 6-1C).

2. When diameter of wood being cut is greater than the

bar length, make 2 cuts as shown (Figure 6-1D).

WARNING

As the felling cut gets close to the hinge, the tree should

begin to fall. When tree begins to fall, remove saw from cut,

stop engine, put chain saw down, and leave area along

retreat path (Figure 6-1A).

6-1D

6-1A

6-1B

6-1C

14 15

6 - GENERAL CUTTING INSTRUCTIONS

6-2. LIMBING

Limbing a tree is the process of removing the branches

from a fallen tree. Do not remove supporting limbs (A) until

after the log is bucked (cut) into lengths (Figure 6-2A).

Branches under tension should be cut from the bottom up

to avoid binding the chain saw.

WARNING

Never cut tree limbs while standing on tree trunk.

6-3. BUCKING

Bucking is cutting a fallen log into lengths. Make sure you

have a good footing and stand uphill of the log when cutting

on sloping ground. If possible, the log should be supported

so that the end to be cut off is not resting on the ground. If

the log is supported at both ends and you must cut in the

middle, make a downward cut halfway through the log and

then make the undercut. This will prevent the log from

pinching the bar and chain. Be careful that the chain does

not cut into the ground when bucking as this causes rapid

dulling of the chain.

When bucking on a slope, always stand on the uphill side.

1. Log supported along entire length: Cut from top (over-

buck), being careful to avoid cutting into the ground

(Figure 6-3A).

2. Log supported on 1 end: First, cut from bottom (under-

buck) 1/3 diameter of log to avoid splintering. Second,

cut from above (overbuck) to meet first cut and avoid

pinching (Figure 6-3B).

3. Log supported on both ends: First, overbuck 1/3 diam-

eter of log to avoid splintering. Second, underbuck to

meet first cut and avoid pinching (Figure 6-3C).

NOTE: The best way to hold a log while bucking is to use a

sawhorse. When this is not possible, the log should be

raised and supported by the limb stumps or by using sup-

porting logs. Be sure the log being cut is securely support-

ed.

6-4.BUCKING USING A SAWHORSE

For personal safety and ease of cutting, the correct position

for vertical bucking is essential (Figure 6-4A).

VERTICAL CUTTING:

A. Hold the saw firmly with both hands and keep the saw

to the right of your body while cutting.

B. Keep the left arm as straight as possible.

C. Keep weight on both feet.

CAUTION

While the saw is cutting, be sure the chain and bar are

being properly lubricated.

6-2A

6-3A

6-3B

6-3C

6-4A

7 - MAINTENANCE INSTRUCTIONS

All chain saw service, other than items listed here in your user manual maintenance

instructions, should be performed by your nearest Authorized Service Center.

7-1.PREVENTIVE MAINTENANCE

A good preventive maintenance program of regular inspection and care will increase life and improve performance of your

McCulloch chain saw. This maintenance checklist is a guide for such a program.

Cleaning, adjustment, and parts replacement may be required, under certain conditions, at more frequent intervals than those

indicated.

MAINTENANCE CHECKLIST EACH USE

HOURS OF

OPERATION

ITEM ACTION 10 20

SCREWS / NUTS / BOLTS

AIR FILTER

FUEL FILTER / OIL FILTER

SPARK PLUG

SPARK ARRESTER SCREEN

FUEL HOSES

CHAIN BRAKE®COMPONENTS

INSPECT / TIGHTEN

CLEAN OR REPLACE

REPLACE

CLEAN / ADJUST / REPLACE

INSPECT

REPLACE AS REQUIRED

INSPECT

*REPLACE AS REQUIRED

INSPECT

✔

*Recommended for Maintenance by a Authorized Service Center Technician.

14 15

6 - GENERAL CUTTING INSTRUCTIONS

6-2. LIMBING

Limbing a tree is the process of removing the branches

from a fallen tree. Do not remove supporting limbs (A) until

after the log is bucked (cut) into lengths (Figure 6-2A).

Branches under tension should be cut from the bottom up

to avoid binding the chain saw.

WARNING

Never cut tree limbs while standing on tree trunk.

6-3. BUCKING

Bucking is cutting a fallen log into lengths. Make sure you

have a good footing and stand uphill of the log when cutting

on sloping ground. If possible, the log should be supported

so that the end to be cut off is not resting on the ground. If

the log is supported at both ends and you must cut in the

middle, make a downward cut halfway through the log and

then make the undercut. This will prevent the log from

pinching the bar and chain. Be careful that the chain does

not cut into the ground when bucking as this causes rapid

dulling of the chain.

When bucking on a slope, always stand on the uphill side.

1. Log supported along entire length: Cut from top (over-

buck), being careful to avoid cutting into the ground

(Figure 6-3A).

2. Log supported on 1 end: First, cut from bottom (under-

buck) 1/3 diameter of log to avoid splintering. Second,

cut from above (overbuck) to meet first cut and avoid

pinching (Figure 6-3B).

3. Log supported on both ends: First, overbuck 1/3 diam-

eter of log to avoid splintering. Second, underbuck to

meet first cut and avoid pinching (Figure 6-3C).

NOTE: The best way to hold a log while bucking is to use a

sawhorse. When this is not possible, the log should be

raised and supported by the limb stumps or by using sup-

porting logs. Be sure the log being cut is securely support-

ed.

6-4.BUCKING USING A SAWHORSE

For personal safety and ease of cutting, the correct position

for vertical bucking is essential (Figure 6-4A).

VERTICAL CUTTING:

A. Hold the saw firmly with both hands and keep the saw

to the right of your body while cutting.

B. Keep the left arm as straight as possible.

C. Keep weight on both feet.

CAUTION

While the saw is cutting, be sure the chain and bar are

being properly lubricated.

6-2A

6-3A

6-3B

6-3C

6-4A

7 - MAINTENANCE INSTRUCTIONS

All chain saw service, other than items listed here in your user manual maintenance

instructions, should be performed by your nearest Authorized Service Center.

7-1.PREVENTIVE MAINTENANCE

A good preventive maintenance program of regular inspection and care will increase life and improve performance of your

McCulloch chain saw. This maintenance checklist is a guide for such a program.

Cleaning, adjustment, and parts replacement may be required, under certain conditions, at more frequent intervals than those

indicated.

MAINTENANCE CHECKLIST EACH USE

HOURS OF

OPERATION

ITEM ACTION 10 20

SCREWS / NUTS / BOLTS

AIR FILTER

FUEL FILTER / OIL FILTER

SPARK PLUG

SPARK ARRESTER SCREEN

FUEL HOSES

CHAIN BRAKE®COMPONENTS

INSPECT / TIGHTEN

CLEAN OR REPLACE

REPLACE

CLEAN / ADJUST / REPLACE

INSPECT

REPLACE AS REQUIRED

INSPECT

*REPLACE AS REQUIRED

INSPECT

✔

*Recommended for Maintenance by a Authorized Service Center Technician.

7-2.AIR FILTER

CAUTION

Never operate saw without the air filter. Dust and dirt will be

drawn into engine and damage it. Keep the air filter clean!

TO CLEAN AIR FILTER:

1. Remove the top cover (A) by loosening the cover

retaining screws. Cover will lift off.(Figure 7-2A)

2. Lift the air filter (B) out of air-box (C) (Figure 7-2B).

3. Clean air filter. Wash filter in clean, warm, soapy water.

Rinse in clear, cool water. Air dry completely.

NOTE: It is advisable to have a supply of spare filters.

4. Install air filter. Install engine / air filter cover. Make sure

cover fits properly. Tighten the cover retaining screws

securely.

WARNING

Never perform maintenance when the engine is hot, to

avoid any chance of burning hands or fingers.

7-3.FUEL FILTER

CAUTION

Never operate your saw without a fuel filter. The fuel filter

should be replaced after each 20 hours of use. Drain fuel

0tank completely before changing filter.

1. Completely remove the fuel cap from the gas tank.

2. Bend a piece of soft wire.

3. Reach into fuel tank opening and hook fuel line.

Carefully pull the fuel line toward the opening until you

can reach it with your fingers.

NOTE: Do not pull hose completely out of tank.

4. Lift filter (A) out of tank (Figure 7-3A).

5. Pull filter off with a twisting motion. Discard filter.

6. Install new filter. Insert end of filter into tank opening.

Make sure filter sits in bottom corner of tank. Use a long

handle screwdriver to aid in filter placement if neces-

sary.

7. Fill tank with fresh fuel / oil mixture. See Section 4, Fuel

and Lubrication. Install fuel cap.

7-4.SPARK ARRESTER SCREEN (Figure 7-

4A)

NOTE: A clogged spark arrester screen will dramatically

reduce engine performance.

1. Remove the 3 bolts (A) and pull muffler out. (Figure7-

4A).

2. Remove the 2 screws (B) that hold the spark arrester

cover (C) . (Figure 7-4B)

3. Discard the used spark arrester screen (D) and replace

it with a new one.

4. Reasemble the muffler components and install the muf-

fler to the cylinder. Tighten securely.

16 17

7 - MAINTENANCE INSTRUCTIONS

7-4B

7-3A

7 - MAINTENANCE INSTRUCTIONS

7-2A

7-2B

7-5.SPARK PLUG

NOTE: For efficient operation of saw engine, spark plug

must be kept clean and properly gapped.

1. Push STOP switch down.

2. Remove air cleaner cover.

3. Disconnect the wire connector (G) from the spark plug

(H) by pulling and twisting at the same time (Figure 7-

5A).

4. Remove spark plug with spark plug socket wrench. DO

NOT USE ANY OTHER TOOL.

5. Check electtrode gaps with wire feeler gauge and set

gaps to .025” (.635mm) if necessary.

6. Reinstall a new spark plug.

NOTE: A resistor spark plug must be used for replacement

(McCulloch part no. 9295-310502).

NOTE: This spark ignition system meets all requirements

of the Canadian Interferen-Causing Equipment

Regulations.

7-6.CARBURETOR ADJUSTMENT

The carburetor was pre-set at the factory for optimum per-

formance. If further adjustments are necessary, please take

your unit to the nearest Authorized Service Center listed in

the Yellow Pages.

7-7.STORING A CHAIN SAW

CAUTION

Never store a chain saw for longer than 30 days without

performing the following procedures.

Storing a chain saw for longer than 30 days requires stor-

age maintenance. Unless the storage instructions are fol-

lowed, fuel remaining in the carburetor will evaporate, leav-

ing gum-like deposits.This could lead to difficult starting

and result in costly repairs.

1. Remove the fuel tank cap slowly to release any pres-

sure in tank. Carefully drain the fuel tank.

2. Start the engine and let it run until the unit stops to

remove fuel from carburetor.

3. Allow the engine to cool (approx. 5 minutes).

4. Using a spark plug wrench, remove the spark plug.

5. Pour 1 teaspoon of clean 2-cycle oil into the combus-

tion chamber. Pull starter rope slowly several times to

coat internal components. Replace spark plug (Figure

7-7A).

NOTE: Store the unit in a dry place and away from possi-

ble sources of ignition such as a furnace, gas hot water

heater, gas dryer, etc.

7-8.REMOVING A UNIT FROM STORAGE

1. Remove spark plug.

2. Pull starter rope briskly to clear excess oil from com-

bustion chamber.

3. Clean and gap spark plug or install a new spark plug

with proper gap.

4. Prepare unit for operation.

5. Fill fuel tank with proper fuel / oil mixture. See Fuel

and Lubrication Section.

7-3A

7-7A

7-2.AIR FILTER

CAUTION

Never operate saw without the air filter. Dust and dirt will be

drawn into engine and damage it. Keep the air filter clean!

TO CLEAN AIR FILTER:

1. Remove the top cover (A) by loosening the cover

retaining screws. Cover will lift off.(Figure 7-2A)

2. Lift the air filter (B) out of air-box (C) (Figure 7-2B).

3. Clean air filter. Wash filter in clean, warm, soapy water.

Rinse in clear, cool water. Air dry completely.

NOTE: It is advisable to have a supply of spare filters.

4. Install air filter. Install engine / air filter cover. Make sure

cover fits properly. Tighten the cover retaining screws

securely.

WARNING

Never perform maintenance when the engine is hot, to

avoid any chance of burning hands or fingers.

7-3.FUEL FILTER

CAUTION

Never operate your saw without a fuel filter. The fuel filter

should be replaced after each 20 hours of use. Drain fuel

0tank completely before changing filter.

1. Completely remove the fuel cap from the gas tank.

2. Bend a piece of soft wire.

3. Reach into fuel tank opening and hook fuel line.

Carefully pull the fuel line toward the opening until you

can reach it with your fingers.

NOTE: Do not pull hose completely out of tank.

4. Lift filter (A) out of tank (Figure 7-3A).

5. Pull filter off with a twisting motion. Discard filter.

6. Install new filter. Insert end of filter into tank opening.

Make sure filter sits in bottom corner of tank. Use a long

handle screwdriver to aid in filter placement if neces-

sary.

7. Fill tank with fresh fuel / oil mixture. See Section 4, Fuel

and Lubrication. Install fuel cap.

7-4.SPARK ARRESTER SCREEN (Figure 7-

4A)

NOTE: A clogged spark arrester screen will dramatically

reduce engine performance.

1. Remove the 3 bolts (A) and pull muffler out. (Figure7-

4A).

2. Remove the 2 screws (B) that hold the spark arrester

cover (C) . (Figure 7-4B)

3. Discard the used spark arrester screen (D) and replace

it with a new one.

4. Reasemble the muffler components and install the muf-

fler to the cylinder. Tighten securely.

16 17

7 - MAINTENANCE INSTRUCTIONS

7-4B

7-3A

7 - MAINTENANCE INSTRUCTIONS

7-2A

7-2B

7-5.SPARK PLUG

NOTE: For efficient operation of saw engine, spark plug

must be kept clean and properly gapped.

1. Push STOP switch down.

2. Remove air cleaner cover.

3. Disconnect the wire connector (G) from the spark plug

(H) by pulling and twisting at the same time (Figure 7-

5A).

4. Remove spark plug with spark plug socket wrench. DO

NOT USE ANY OTHER TOOL.

5. Check electtrode gaps with wire feeler gauge and set

gaps to .025” (.635mm) if necessary.

6. Reinstall a new spark plug.

NOTE: A resistor spark plug must be used for replacement

(McCulloch part no. 9295-310502).

NOTE: This spark ignition system meets all requirements

of the Canadian Interferen-Causing Equipment

Regulations.

7-6.CARBURETOR ADJUSTMENT

The carburetor was pre-set at the factory for optimum per-

formance. If further adjustments are necessary, please take

your unit to the nearest Authorized Service Center listed in

the Yellow Pages.

7-7.STORING A CHAIN SAW

CAUTION

Never store a chain saw for longer than 30 days without

performing the following procedures.

Storing a chain saw for longer than 30 days requires stor-

age maintenance. Unless the storage instructions are fol-

lowed, fuel remaining in the carburetor will evaporate, leav-

ing gum-like deposits.This could lead to difficult starting

and result in costly repairs.

1. Remove the fuel tank cap slowly to release any pres-

sure in tank. Carefully drain the fuel tank.

2. Start the engine and let it run until the unit stops to

remove fuel from carburetor.

3. Allow the engine to cool (approx. 5 minutes).

4. Using a spark plug wrench, remove the spark plug.

5. Pour 1 teaspoon of clean 2-cycle oil into the combus-

tion chamber. Pull starter rope slowly several times to

coat internal components. Replace spark plug (Figure

7-7A).

NOTE: Store the unit in a dry place and away from possi-

ble sources of ignition such as a furnace, gas hot water

heater, gas dryer, etc.

7-8.REMOVING A UNIT FROM STORAGE

1. Remove spark plug.

2. Pull starter rope briskly to clear excess oil from com-

bustion chamber.

3. Clean and gap spark plug or install a new spark plug

with proper gap.

4. Prepare unit for operation.

5. Fill fuel tank with proper fuel / oil mixture. See Fuel

and Lubrication Section.

7-3A

7-7A

18 19

8 - BAR / CHAIN MAINTENANCE

8-1. GUIDE BAR MAINTENANCE

Frequent lubrication of the guide bar (railed bar which sup-

ports and carries the saw chain) sprocket tip is required.

Proper maintenance of the guide bar, as explained in this

section, is essential to keep your saw in good working con-

dition.

SPROCKET TIP LUBRICATION:

CAUTION

The sprocket tip on your new saw has been pre-lubricated

at the factory. Failure to lubricate the guide bar sprocket tip

as explained below will result in poor performance and

seizure, voiding the manufacturer’s warranty.

Lubrication of the sprocket tip is recommended after 10

hours of use or once a week, which ever occurs first.

Always thoroughly clean guide bar sprocket tip before lubri-

cation.

TOOLS FOR LUBRICATION:

The Lube Gun (optional) is recommended for applying

grease to the guide bar sprocket tip. The Lube Gun is

equipped with a needle nose tip which is necessary for the

efficient application of grease to the sprocket tip.

TO LUBRICATE SPROCKET TIP:

WARNING

Wear heavy duty work gloves when handling the bar and

chain.

1. Move the STOP switch down.

NOTE: It is not necessary to remove the saw chain to lubri-

cate the guide bar sprocket tip. Lubrication can be done on

the job.

2. Clean the guide bar sprocket tip.

3. Using the Lube Gun (optional), insert tip of lube gun

into the lubrication hole and inject grease until it

appears at outside edge of sprocket tip (Figure 8-1A).

4. Rotate saw chain by hand. Repeat lubrication proce-

dure until the entire sprocket tip has been greased.

GUIDE BAR MAINTENANCE:

Most guide bar problems can be prevented merely by keep-

ing the chain saw well maintained.

Insufficient guide bar lubrication and operating the saw with

chain that is TOO TIGHT will contribute to rapid bar wear.

To help minimize bar wear, the following guide bar mainte-

nance procedures are recommended.

BAR WEAR - Turn guide bar frequently at regular intervals

(for example, after 5 hours of use), to ensure even wear on

top and bottom of bar.

BAR GROOVES - Bar grooves (or rails which support and

carry the chain) should be cleaned if saw has been used

heavily or if saw chain appears dirty. Rails should always be

cleaned every time saw chain is removed.

OIL PASSAGES - Oil passages on the bar should be

cleaned to ensure proper lubrication of the bar and chain

during operation.

NOTE: The condition of the oil passages can be easily

checked. If the passages are clear, the chain will automati-

cally give off a spray of oil within seconds of starting the

saw. Your saw is equipped with an automatic oiler system.

8-2. CHAIN MAINTENANCE

CHAIN TENSION:

Check the chain tension frequently and adjust as often as

necessary to keep the chain snug on the bar, but loose

enough to be pulled around by hand.

BREAKING IN A NEW SAW CHAIN:

A new chain and bar will need chain readjustment after as

few as 5 cuts.This is normal during the break-in period, and

the interval between future adjustments will begin to length-

en quickly.

WARNING

Never have more than 3 links removed from a loop of chain.

This could cause damage to the sprocket.

CHAIN LUBRICATION:

Always make sure the automatic oiler system is working

properly. Keep the oil tank filled with Genuine Factory Parts

Chain, Bar and Sprocket Oil.

Adequate lubrication of the bar and chain during cutting

operations is essential to minimize friction with the guide

bar.

Never starve the bar and chain of lubricating oil. Running

the saw dry or with too little oil will decrease cutting efficien-

cy, shorten saw chain life, cause rapid dulling of chain, and

lead to excessive wear of bar from overheating. Too little oil

is evidenced by smoke or bar discoloration.

CHAIN SHARPENING:

Chain sharpening requires special tools to ensure that cut-

ters are sharpened at the correct angle and depth. For the

inexperienced chain saw user, we recommend that the saw

chain be professionally sharpened by the nearest

Authorized Service Center. If you feel comfortable sharpen-

ing your own saw chain, special tools are available from the

nearest Authorized Service Center.

8-1A

8 - BAR / CHAIN MAINTENANCE

8-3.CHAIN REPLACEMENT INFORMATION

There may be other quality equivalent replacement components for achieving kickback protection.

Bar Length Drive Links

18” Bar 60 DL

18 19

8 - BAR / CHAIN MAINTENANCE

8-1. GUIDE BAR MAINTENANCE

Frequent lubrication of the guide bar (railed bar which sup-

ports and carries the saw chain) sprocket tip is required.

Proper maintenance of the guide bar, as explained in this

section, is essential to keep your saw in good working con-

dition.

SPROCKET TIP LUBRICATION:

CAUTION

The sprocket tip on your new saw has been pre-lubricated

at the factory. Failure to lubricate the guide bar sprocket tip

as explained below will result in poor performance and

seizure, voiding the manufacturer’s warranty.

Lubrication of the sprocket tip is recommended after 10

hours of use or once a week, which ever occurs first.

Always thoroughly clean guide bar sprocket tip before lubri-

cation.

TOOLS FOR LUBRICATION:

The Lube Gun (optional) is recommended for applying

grease to the guide bar sprocket tip. The Lube Gun is

equipped with a needle nose tip which is necessary for the

efficient application of grease to the sprocket tip.

TO LUBRICATE SPROCKET TIP:

WARNING

Wear heavy duty work gloves when handling the bar and

chain.

1. Move the STOP switch down.

NOTE: It is not necessary to remove the saw chain to lubri-

cate the guide bar sprocket tip. Lubrication can be done on

the job.

2. Clean the guide bar sprocket tip.

3. Using the Lube Gun (optional), insert tip of lube gun

into the lubrication hole and inject grease until it

appears at outside edge of sprocket tip (Figure 8-1A).

4. Rotate saw chain by hand. Repeat lubrication proce-

dure until the entire sprocket tip has been greased.

GUIDE BAR MAINTENANCE:

Most guide bar problems can be prevented merely by keep-

ing the chain saw well maintained.

Insufficient guide bar lubrication and operating the saw with

chain that is TOO TIGHT will contribute to rapid bar wear.

To help minimize bar wear, the following guide bar mainte-

nance procedures are recommended.

BAR WEAR - Turn guide bar frequently at regular intervals

(for example, after 5 hours of use), to ensure even wear on

top and bottom of bar.

BAR GROOVES - Bar grooves (or rails which support and

carry the chain) should be cleaned if saw has been used

heavily or if saw chain appears dirty. Rails should always be

cleaned every time saw chain is removed.

OIL PASSAGES - Oil passages on the bar should be

cleaned to ensure proper lubrication of the bar and chain

during operation.

NOTE: The condition of the oil passages can be easily

checked. If the passages are clear, the chain will automati-

cally give off a spray of oil within seconds of starting the

saw. Your saw is equipped with an automatic oiler system.

8-2. CHAIN MAINTENANCE

CHAIN TENSION:

Check the chain tension frequently and adjust as often as

necessary to keep the chain snug on the bar, but loose

enough to be pulled around by hand.

BREAKING IN A NEW SAW CHAIN:

A new chain and bar will need chain readjustment after as

few as 5 cuts.This is normal during the break-in period, and

the interval between future adjustments will begin to length-

en quickly.

WARNING

Never have more than 3 links removed from a loop of chain.

This could cause damage to the sprocket.

CHAIN LUBRICATION:

Always make sure the automatic oiler system is working

properly. Keep the oil tank filled with Genuine Factory Parts

Chain, Bar and Sprocket Oil.

Adequate lubrication of the bar and chain during cutting

operations is essential to minimize friction with the guide

bar.

Never starve the bar and chain of lubricating oil. Running

the saw dry or with too little oil will decrease cutting efficien-

cy, shorten saw chain life, cause rapid dulling of chain, and

lead to excessive wear of bar from overheating. Too little oil

is evidenced by smoke or bar discoloration.

CHAIN SHARPENING:

Chain sharpening requires special tools to ensure that cut-

ters are sharpened at the correct angle and depth. For the

inexperienced chain saw user, we recommend that the saw

chain be professionally sharpened by the nearest

Authorized Service Center. If you feel comfortable sharpen-

ing your own saw chain, special tools are available from the

nearest Authorized Service Center.

8-1A

8 - BAR / CHAIN MAINTENANCE

8-3.CHAIN REPLACEMENT INFORMATION

There may be other quality equivalent replacement components for achieving kickback protection.

Bar Length Drive Links

18” Bar 60 DL

PN 9096-MD0707 Printed in Taiwan

MANUEL DE UTILISATION

Tronçonneuses à Essence

Modèle : EB428

SECURITE

FONCTIONNEMENT

ENTRETIEN

AVERTISSEMENT • LIRE ATTENTIVEMENT

Attention aux rebonds. Tenez toujours la tronçonneuse fermement et des deux mains. Pour votre propre sécurité, veuillez

lire attentivement ce manuel et suivre toutes les measures de précautions indiquées avant de vous servir de la tronçon-

neuse. Utilisé incorrectement, cet outil peut causer des dommages matérials et/ou corporels graves.

Ce produit a été testé à un certain angle de rebond calculé (CKA : Computed Kickback Angle) et il est conforme à la norme

ANSI B175.1-2000, Annexe C.CAN/CSA-Z62.1-03

CORRECTIVE ACTION

Follow instructions in the User Manual.

Have carburetor adjusted by an

Authorized Service Center.

Clean / gap or replace plug.

Replace fuel filter.

Move to RUN position.

Replace spark arrester screen.

Remove, clean and reinstall filter.

Have carburetor adjusted by an

Authorized Service Center.

Have carburetor adjusted by an

Authorized Service Center.

Clean / gap or replace plug.

Have carburetor adjusted by an

Authorized Service Center.

Use properly mixed fuel (40:1 mixture).

PROBLEM

Unit won’t start or starts but will

not run.

Unit starts, but engine has low

power.

Engine hesitates.

No power under load.

Runs erratically.

Smokes excessively.

PROBABLE CAUSE

Incorrect starting procedures.

Incorrect carburetor mixture

adjustment setting.

Fouled spark plug

Fuel filter plugged.

Incorrect lever position on choke.

Dirty spark arrester screen.

Dirty air filter.

Incorrect carburetor mixture

adjustment setting.

Incorrect carburetor mixture

adjustment setting.

Incorrectly gapped spark plug.

Incorrect carburetor mixture

adjustment setting.

Incorrect fuel mixture.

9 - TROUBLESHOOTING THE ENGINE

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