Sears Chainsaw C944414460 User Manual

Instruction Manual

46cc/2.8 cu.in. 2-Cycle

GASOLINE CHAIN SAW

Model No.

C944.414460 --- 18 in. Bar

S Safety

S Assembly

S Operation

S Maintenance

S Parts List

WARNING:

Read and follow all Safety Rules and Operating

Instructions before first use of this product.

Sears Canada, Inc., Toronto, Ontario M5B 2B8

530164939

3/12/04

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TABLE OF CONTENTS

Warranty Statement

Identification of Symbols

Safety Rules

Service and Adjustments

Storage

Troubleshooting Table

Emissions Statement

Parts List

Assembly

Operation

Maintenance

Center Section

Back Cover

Parts & Ordering

WARRANTY STATEMENT

LIMITED ONE (1) YEAR WARRANTY FOR CRAFTSMAN GAS CHAIN SAW

For one (1) year from the date of purchase Sears Canada, Inc., will repair or

replace free of charge at Sears option parts which are defective as a result of

materials or workmanship.

COMMERCIAL OR RENTAL USE:

If this Gas Chain Saw is used for commercial application the warranty is void.

This warranty does NOT cover:

1. Expendable items which become worn during normal use, such as chain,

chain bar, starter rope, spark plugs, and filter.

2. Pre-delivery setup, installation of guide bar and chain.

3. Customer neglect; operating Chain Saw without proper fuel mixture or operat-

ing Chain Saw without lubrication.

Warranty service is available by returning the Gas Chain Saw to the nearest

Sears Service Centre/Department in Canada. This warranty applies only while

this product is in use in Canada.

This warranty is in addition to any statutory warranty and does not exclude or limit

legal rights you may have but shall run concurrently with applicable provincial

legislation. Furthermore, some provinces do NOT allow limitation on how long an

implied warranty will last so the above limitations may not apply to you.

Sears Canada, Inc., Toronto, Ontario M5B 2B8

IDENTIFICATION OF SYMBOLS

Read and understand the

instruction manual before

using the chain saw.

WARNING!

This chain

saw can be dangerous! Care-

less or improper use can cause

serious or even fatal injury.

Measured maximum kick-

back value without chain

brake for the bar and chain

combination on the label.

XX_

Always wear appropriate

ear protection, eye protec-

tion and head protection.

Always use two hands when operating the chain saw.

WARNING! Contacting the guide bar tip with any object

should be avoided; tip contact may cause the guide bar to

movesuddenly upwardandbackward, which may causese-

rious injury.

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SAFETY RULES

S Do not start cutting until you have a

WARNING: Always disconnect

spark plug wire when making repairs ex-

cept for carburetor adjustments. Be-

cause a chain saw is a high-speed

woodcutting tool, special safety precau-

tions must be observed to reduce risk of

accidents. Careless or improper use of

this tool can cause serious injury.

clear work area, secure footing, and

especially if you are felling a tree, a

retreat path.

OPERATE YOUR SAW SAFELY

S Do not operate with one hand. Seri-

ous injury to the operator, helpers, or

bystanders may result from one-

handed operation. A chain saw is in-

tended for two-handed use.

PLAN AHEAD

S Restrict the use of your saw to adult

users who understand and can fol-

low the safety rules, precautions,

and operating instructions found in

this manual.

S Wear protective gear. Always use

steel-toed safety footwear with non-

slip soles; snug-fitting clothing;

heavy-duty, non-slip gloves; eye pro-

tection such as non-fogging, vented

goggles or face screen; an approved

safety hard hat; and sound barriers

(ear plugs or mufflers) to protect your

hearing. Regular users should have

hearing checked regularly as chain

saw noise can damage hearing.

S Operate the chain saw only in a well-

ventilated outdoor area.

S Do not operate saw from a ladder or

in a tree.

S Make sure the chain will not make

contact with any object while starting

the engine. Never try to start the saw

when the guide bar is in a cut.

S Do not put pressure on the saw, es-

pecially at the end of the cut. Doing

so can cause you to lose control

when the cut is completed.

S Stop engine before setting saw down.

S Hand carry saw only when engine is

stopped. Carry with muffler away

from body; guide bar & chain project-

ing behind you; guide bar preferably

covered with a scabbard.

S Do not operate a chain saw that is

damaged, improperly adjusted, or not

completely and securely assembled.

Always replace bar, chain, hand

guard, chain brake, or other parts im-

mediately if they become damaged,

broken, or are otherwise removed.

Safety Hat

Eye

Protection

Hearing

Protection

Snug

Fitting

Clothing

Heavy Duty

Gloves

Safety

Shoes

Safety Chaps

MAINTAIN YOUR SAW IN GOOD

WORKING ORDER

S Have all chain saw service per-

formed by a qualified service dealer

except the items listed in the MAINTE-

NANCE section of this manual.

S Make certain the saw chain stops

moving when the throttle trigger is

released. For correction, refer to

CARBURETOR ADJUSTMENTS.

S Keep the handles dry, clean, and

free from oil or fuel mixture.

S Secure hair above shoulder length.

Do not wear loose clothing or jewelry;

they can get caught in moving parts.

S Keep all parts of your body away

from the chain when the engine is

running.

S Keep children, bystanders, and ani-

mals at least 30 feet (10 meters)

away from the work area when start-

ing and using the saw.

S Do not handle or operate a chain

saw when you are fatigued, ill, or up-

set, or if you have taken alcohol,

drugs, or medication. You must be in

good physical condition and mentally

alert. If you have any condition that

might be aggravated by strenuous

work, check with doctor before oper-

ating.

S Keep caps and fasteners securely

tightened.

S Nonconforming replacement compo-

nents or the removal of safety devices

may cause damage to the unit and

possible injury to the operator or by-

standers. Use only Craftsman acces-

sories and replacement parts as rec-

ommended. Never modify your saw.

S Maintain chain saw with care.

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S Keep unit sharp and clean for better

and safer performance.

WARNING: Avoid kickback which

can result in serious injury. Kickback

is the backward, upward or sudden for-

ward motion of the guide bar occurring

when the saw chain near the upper tip

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. Contacting a foreign

object in the wood can also result in

loss of chain saw control.

S Rotational Kickback can occur

when the moving chain contacts an

object at the upper tip of the guide

bar. This contact can cause the

chain to dig into the object, which

stops the chain for an instant. The

result is a lightning fast, reverse

reaction which kicks the guide bar up

and back toward the operator.

S Pinch-Kickback can occur when the

the wood closes in and pinches the

moving saw chain in the cut along

the top of the guide bar and the saw

chain is suddenly stopped. This sud-

den stopping of the chain results in a

reversal of the chain force used to

cut wood and causes the saw to

move in the opposite direction of the

chain rotation. The saw is driven

straight back toward the operator.

S Pull-In can occur when the moving

chain contacts a foreign object in the

wood in the cut along the bottom of

the guide bar and the saw chain is

suddenly stopped. This sudden stop-

ping pulls the saw forward and away

from the operator and could easily

cause the operator to lose control of

the saw.

S Follow instructions for lubricating and

changing accessories.

S Check for damaged parts. Before fur-

ther use of the chain saw, a guard or

other part that is damaged should be

carefully checked to determine that it

will operate properly and perform its

intended function. Check for alignment

of moving parts, binding of moving

parts, breakage of parts, mounting and

any other conditions that may affect its

operation. A guard or other part that is

damaged should be properly repaired

or replaced by a Sears Service Centre

unless otherwise indicated elsewhere

in the instruction manual.

S When not in use, chain saws should

be stored in a dry, high or locked-up

place out of the reach of children.

S When storing saw, use a scabbard or

carrying case.

HANDLE FUEL WITH CAUTION

S Do not smoke while handling fuel or

while operating the saw.

S Eliminate all sources of sparks or

flame in areas where fuel is mixed or

poured.

S Mix and pour fuel in an outdoor area

and use an approved, marked con-

tainer for all fuel purposes. Wipe up

all fuel spills before starting saw.

S Move at least 10 feet (3 meters) from

fueling site before starting.

S Turn the engine off and let saw cool

in a non-combustible area, not on

dry leaves, straw, paper, etc. Slowly

remove fuel cap and refuel unit.

S Store the unit and fuel in a cool, dry

well ventilated space where fuel va-

pors cannot reach sparks or open

flames from water heaters, electric

motors or switches, furnaces, etc.

GUARD AGAINST KICKBACK

Follow all safety rules to help avoid

kickback and other forces which can

result in serious injury.

REDUCE THE CHANCE OF

KICKBACK

S Recognize that kickback can happen.

With a basic understanding of kick-

back, you can reduce the element of

surprise which contributes to acci-

dents.

S Never let the moving chain contact

any object at the tip of the guide bar.

S Keep working area free from obstruc-

tions such as other trees, branches,

rocks, fences, stumps, etc. Eliminate

or avoid any obstruction that your

saw chain could hit while cutting.

S When cutting a branch, do not let the

guide bar contact another branch or

other objects around it.

Kickback Path

Avoid Obstructions

Clear The

Working Area

S Keep saw chain sharp and properly

tensioned. A loose or dull chain can

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increase the chance of kickback.

Follow manufacturer’s chain sharp-

ening and maintenance instructions.

Check tension at regular intervals,

but never with engine running. Make

sure chain brake nuts are securely

tightened.

S Begin and continue cutting at full

speed. If the chain is moving at a

slower speed, there is greater

chance of kickback occurring.

S Use extreme caution when reenter-

ing a cut.

S Position your left hand on the front

handlebar so it is in a straight line

with your right hand on the rear han-

dle when making bucking cuts.

Stand slightly to the left side of the

saw to keep your body from being in

a direct line with the cutting chain.

S Stand with your weight evenly bal-

anced on both feet.

S Do not overreach. You could be

drawn or thrown off balance and lose

control.

S Do not cut above shoulder height. It

is difficult to maintain control of saw

above shoulder height.

S Do not attempt cuts starting with the

tip of the bar (plunge cuts).

S Watch for shifting logs or other forces

that could close a cut and pinch or

fall into chain.

S Use the specified Reduced-Kickback

Guide Bar and Low-Kickback Chain.

Avoid Pinch-Kickback:

S Be extremely aware of situations or

obstructions that can cause material

to pinch the top of or otherwise stop

the chain.

S Do not cut more than one log at a

time.

S Do not twist saw as bar is withdrawn

from an undercut when bucking.

Avoid Pull-In:

S Always begin cutting with the engine

at full speed and the saw housing

against wood.

S Use wedges made of plastic or

wood. Never use metal to hold the

cut open.

KICKBACK SAFETY FEATURES

WARNING: The following fea-

tures are included on your saw to help

reduce hazard of kickback; however,

such features will not totally eliminate

this danger. Do not rely only on safety

devices. Follow all safety rules to help

avoid kickback and other forces which

can result in serious injury.

S Front Hand Guard: designed to re-

duce the chance of your left hand

contacting the chain if your hand

slips off the front handlebar.

S Position of front and rear handlebars:

designed with distance between han-

dles and “in-line” with each other. The

spread and “in-line” position of the

hands provided by this design work

together to give balance and resis-

tance in controlling the pivot of the

saw back toward the operator if kick-

back occurs.

MAINTAIN CONTROL

Stand to the left of the saw

S Reduced-Kickback Guide Bar: de-

signed with a small radius tip which

reduces the size of the kickback dan-

ger zone. This type bar has been

demonstrated to significantly reduce

the number and seriousness of kick-

backs.

Thumb on

underside

of handlebar

Elbow

locked

Small Radius

Tip Guide Bar

Never reverse hand positions

S A good, firm grip on the saw with

both hands will help you maintain

control. Don’t let go. Grip the rear

handle with your right hand whether

you are right or left handed. Wrap the

fingers of your left hand over and

around the front handlebar, and your

left thumb under the front handlebar.

Keep your left arm straight with the

elbow locked.

Large Radius

Tip Guide Bar

S Low-Kickback Chain: has met kick-

back performance requirements when

tested on a representative sample of

chain saws below 3.8 cubic inch dis-

placement.

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S Tip contact in some cases may cause

a lightning fast reverse REACTION,

kicking guide bar up and back toward

operator.

S Pinching the saw chain along the top

of the guide bar may push the guide

bar rapidly back toward the operator.

S Either of these reactions may cause

you to lose control of the saw which

could result in serious injury. Do not

rely exclusively upon safety devices

built into your saw.

Low-Kickback Chain

Contoured Depth Gauge

Elongated Guard Link

Deflects Kickback

Force And Allows

Wood To Gradually

Ride Into Cutter

CHAIN BRAKE & CKA ANGLE

S Chain Brake: designed to stop the

chain in the event of kickback.

WARNING: WE DO NOT REP-

RESENT AND YOU SHOULD NOT ASSUME

THAT THE CHAIN BRAKE WILL PROTECT

YOU IN THE EVENT OF A KICKBACK. Kick-

back is a lightning fast action whichthrows

the bar and rotating chain back and up to-

ward the operator. Kickback can be

caused by allowing contact of the bar tip in

the danger zone with any hard object.

Kickback can also be caused by pinching

the saw chain along the top of the guide

bar. This action may push the guide bar

rapidly back toward the operator. Either of

these events may cause you to lose con-

trol of the sawwhich could result in serious

injury or even death. DO NOT RELY UPON

ANY OF THE SAFETY DEVICES BUILT INTO

YOUR SAW. YOU SHOULD USE THE SAW

PROPERLY AND CAREFULLY TO AVOID

WARNING: Computed kickback

angle (CKA) listed on your saw and

listed in the CKA table below represents

angle of kickback your bar and chain

combinations will have when tested in

accordance with CSA (Canadian Stan-

dards Association) standards. When

purchasing replacement bar and chain,

considerations should be given to the

lower CKA values. Lower CKA values

represent safer angles to the user, high-

er values indicate more angle and high-

er kick energies. Computed angle repre-

sented indicates total energy and angle

associated without activation of the

chain brake during kickback. In all cases

lower CKA values represent a safer op-

erating environment for the user.

KICKBACK.

Reduced--kickback guide

bars and low--kickback saw chains re-

duce the chance and magnitude of kick-

back and are recommended. Your saw

has a low kickback chain and bar as origi-

nal equipment. Repairs on a chain brake

should be made by an authorized Sears

Service Centre. Take your unitto the place

of purchase or to your nearest Sears Ser-

vice Centre.

The following guide bar and chain com-

binations meet kickback requirements

of CSA Z62.1 and Z62.3 when used on

saws listed in this manual. Use of bar

and chain combinations other than

those listed is not recommended and

may not meet the CKA requirements per

standard.

Computed kickback angle (CKA) Table

BAR

CKA without

chain brake

MODEL

CHAIN P/N

71--3634

P/N

Length

18!

C944.414460

71--36372

24_

SAFETY NOTICE: Exposure to vibra-

tions through prolonged use of gasoline

powered hand tools could cause blood

vessel or nerve damage in the fingers,

hands, and joints of people prone to

circulation disorders or abnormal swell-

ing. Prolonged use in cold weather has

been linked to blood vessel damage in

otherwise healthy people. If symptoms

occur such as numbness, pain, loss of

strength, change in skin color or texture,

or loss of feeling in the fingers, hands, or

joints, discontinue the use of this tool

and seek medical attention. An anti-vi-

bration system does not guarantee the

avoidance of these problems. Users

who operate power tools on a continual

and regular basis must closely monitor

their physical condition and the condition

of this tool.

SPECIAL NOTICE: Your saw is

equipped with a temperature limiting

muffler and spark arresting screen which

meets the requirements of California

Codes 4442 and 4443. All U.S. forest

land and the states of California, Idaho,

Maine, Minnesota, New Jersey, Oregon,

and Washington require by law that

many internal combustion engines be

equipped with a spark arrestor screen. If

you operate a chain saw in a state or

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locale where such regulations exist, you

are legally responsible for maintaining

the operating condition of these parts.

Failure to do so is a violation of the law.

Refer to CUSTOMER RESPONSIBILITIES

TABLE in the MAINTENANCE section.

STANDARDS: This saw is listed by

Underwriter’s Laboratories, Inc., in ac-

cordance with:

CSA Z62.1--03 Chain Saws -- Occupa-

tional Health and Safety

CSA Z62.3--96 Chain Saw Kickback

Occupational Health and Safety

ASSEMBLY

If you need assistance or find that parts

are missing or damaged, contact your

Sears Service Centre

WARNING: Before using chain

saw, ensure all fasteners are secure.

CARTON CONTENTS

NOTE: It is normal to hear the fuel filter

rattle in an empty fuel tank.

Check carton contents against the fol-

lowing list.

Your unit has been factory tested and

the carburetor precisely adjusted. As a

result you may smell gasoline or find a

drop of oil/fuel residue on the muffler

when you unpack the unit.

Model C944.414460

S Chain Saw (fully assembled)

S Chain adjustment tool (bar tool)

S 2-cycle engine oil (bar oil not included)

S Carrying case

ASSEMBLY

Your saw is fully assembled; no

assembly is necessary.

Examine parts for damage. Do not use

damaged parts.

OPERATION

KNOW YOUR SAW

READ THIS INSTRUCTION MANUAL AND SAFETY RULES BEFORE OPERATING YOUR

CHAIN SAW. Compare the illustrations with your unit to familiarize yourself with the

location of the various controls and adjustments. Save this manual for future ref-

erence.

Front Handle

Front Hand Guard

Chain Adjustment Tool

(Bar Tool)

Starter Rope

ON/STOP

Switch

Muffler

Bar Sprocket

Hole

Chain

Bar Oil

Fill Cap

Bumper

Spike

Fuel Mix Fill Cap

Starter Housing

Cylinder Cover

Throttle

Lock--out

Direction

of Chain

Travel

Rear

Handle

Adjusting

Screw

Throttle

Trigger

Guide Bar

Chain Brake Nuts

Chain Brake

Choke/Fast

Idle Lever

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ON/STOP SWITCH

CHAIN BRAKE

The ON/STOP SWITCH is used to stop

the engine.

The CHAIN BRAKE is a device de-

signed to stop the chain if kickback oc-

curs. The chain brake activates auto-

matically in the event of kickback. The

chain brake activates manually if the

front hand guard is pushed forward.

The chain brake is disengaged by pull-

ing the front hand guard back toward

the front handle as far as possible.

THROTTLE TRIGGER

The THROTTLE TRIGGER controls en-

gine speed.

THROTTLE LOCK--OUT

The THROTTLE LOCK--OUT must be

pressed before you can squeeze the

throttle trigger. This feature prevents

you from accidentally squeezing the

trigger.

CHAIN TENSION

It is normal for a new chain to stretch

during first 30 minutes of operation. You

should check your chain tension fre-

quently. See CHAIN TENSION under the

SERVICE AND ADJUSTMENTS section.

CHOKE/FAST IDLE LEVER

The choke and fast idle are set by pull-

ing the CHOKE/FAST IDLE LEVER out

fully for cold or after refueling. The

choke provides additional fuel to the

engine during cold starting.

WARNING: Muffler is very hot

during and after use. Do not touch the

muffler or allow combustible material

such as dry grass or fuel to do so.

BEFORE STARTING ENGINE

line must be mixed with a good quality

synthetic 2-cycle air-cooled engine oil.

We recommend Craftsman brand syn-

thetic oil. Mix gasoline and oil at a ratio

of 40:1. A 40:1 ratio is obtained by mix-

ing 3.2 ounces (95 ml) of oil with 1 gal-

lon (4 litres) of unleaded gasoline. In-

cluded with this saw is a 3.2 ounce (95

ml) container of Craftsman brand oil.

Pour the entire contents of this container

into 1 gallon (4 litres) of gasoline to

achieve the proper fuel mixture. DO NOT

USE automotive oil or marine oil. These

oils will cause engine damage. When

mixing fuel follow the instructions printed

on the container. Once oil is added to

the gasoline, shake container momen-

tarily to assure that the fuel is thoroughly

mixed. Always read and follow the safe-

ty rules relating to fuel before fueling

your unit.

WARNING: Be sure to read the

fuel handling information in the safety

rules section of this manual before you

begin. If you do not understand the

fuel handling information do not at-

tempt to fuel your unit. Seek help from

someone that does understand the in-

formation or contact your Sears Ser-

vice Centre.

GUIDE BAR AND CHAIN OIL

The chain oiler provides continuous

lubrication to the chain and guide bar.

Be sure to fill the bar oil tank when you

fill the fuel tank (Capacity = 6.8 fl. oz.).

Lack of oil will quickly ruin the bar and

chain. Too little oil will cause overheat-

ing shown by smoke coming from the

chain and/or discoloration of the bar.

For maximum guide bar and chain life,

we recommend you use Craftsman

chain saw bar oil. If Craftsman bar oil

is not available, you may use a good

grade SAE 30 oil until you are able to

obtain Craftsman brand. The oil output

is automatically metered during opera-

tion. Your saw will use approximately

one tank of bar oil for every tank of fuel

mix. Always fill the bar oil tank when

you fill the fuel tank.

IMPORTANT

Experience indicates that alcohol

blended fuels (called gasohol or using

ethanol or methanol) can attract mois-

ture which leads to separation and

formation of acids during storage.

Acidic gas can damage the fuel sys-

tem of an engine while in storage.

To avoid engine problems, the fuel

system should be emptied before stor-

age for 30 days or longer. Drain the

gas tank, start the engine and let it run

until the fuel lines and carburetor are

empty. Use fresh fuel next season.

See STORAGE instructions for addition-

al information.

FUELING ENGINE

WARNING: Remove fuel cap

slowly when refueling.

This engine is certified to operate on un-

leaded gasoline. Before operation, gaso-

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Never use engine or carburetor clean-

er products in the fuel tank or perma-

nent damage may occur.

NOTE: DO NOT cut material with the

choke/fast idle lever at the FULL

CHOKE position.

See the STORAGE section for addition-

al information.

CHAIN BRAKE

STARTING A COLD ENGINE (or a

warm engine after running out of

fuel)

NOTE: In the following steps, when

the choke/fast idle lever is pulled out to

the full extent, the correct throttle set-

ting for starting is set automatically.

1. Move ON/STOP switch to ON posi-

tion.

2. Pull choke/fast idle lever out to the

full extent.

3. Pull the starter rope quickly with

your right hand a maximum of 10

times.

NOTE: The engine may sound as if it

is trying to start before the 10th pull; if

so, proceed to the next step.

4. Push the choke/fast idle lever in

completely (to the OFF CHOKE

position).

Ensure chain brake is disengaged by

pulling the front hand guard back to-

ward the front handle as far as pos-

sible. The chain brake must be disen-

gaged before cutting with the saw.

WARNING: The chain must not

move when the engine runs at idle

speed. If the chain moves at idle

speed refer to CARBURETOR ADJUST-

MENT within this manual. Avoid con-

tact with the muffler. A hot muffler can

cause serious burns.

STOPPING YOUR ENGINE

S Move ON/STOP switch to the STOP

position.

5. Pull the starter rope quickly with your

right hand until the engine starts.

6. Allow the engine to run for approxi-

mately 5 seconds. Then, squeeze

and release throttle trigger to allow

engine to return to idle speed.

ON/STOP SWITCH

CHOKE/FAST IDLE LEVER

STARTING POSITION

FULL OFF

S To start the engine, hold the saw

firmly on the ground as illustrated.

Make sure the chain is free to turn

without contacting any object.

Starter Rope Handle

STARTING A WARM ENGINE

1. Move ON/STOP switch to ON posi-

tion.

Left Hand

on Front

Handle

2. Pull the choke/fast idle lever out to

the full extent, then push the lever

back in completely (to the OFF

CHOKE position). This will set the

fast idle lock to the start position.

3. Pull the starter rope quickly with

your right hand until the engine

starts.

Right Foot Through Rear Handle

4. Squeeze and release throttle trig-

ger to allow engine to return to idle

speed.

DIFFICULT STARTING (or starting a

flooded engine)

The engine may be flooded if it has not

started after 10 pulls.

Important points to remember

When pulling the starter rope, do not

use the full extent of the rope as this

can cause the rope to break. Do not

let starter rope snap back. Hold the

handle and let the rope rewind slowly.

For cold weather starting, start the unit

at FULL CHOKE; allow the engine to

warm up before squeezing the throttle

trigger.

Flooded engines can be cleared of ex-

cess fuel by following the warm engine

starting procedure listed above. Insure

the ON/STOP switch is in the ON position.

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Starting could require many pulls de-

pending on how badly the unit is

front handle and use the weight of the

saw to let the tip of the guide bar fall

flooded. If engine still fails to start, refer forward and contact the stump. When

to the TROUBLESHOOTING TABLE or

contact your Sears Service Centre.

the tip of the bar hits the stump, the

brake should activate.

CHAIN BRAKE

OPERATING TIPS

S Check chain tension before first use

and after 1 minute of operation. See

CHAIN TENSION in the MAINTENANCE

section.

S Cut wood only. Do not cut metal,

plastics, masonry, non-wood building

materials, etc.

S Stop the saw if the chain strikes a

foreign object. Inspect the saw and

repair parts as necessary.

S Keep the chain out of dirt and sand.

Even a small amount of dirt will

quickly dull a chain and increase the

possibility of kickback.

S Practice cutting a few small logs us-

ing the following steps. This will help

you get the “feel” of using your saw

before you begin a major sawing op-

eration.

S Squeeze the throttle trigger and al-

low the engine to reach full speed

before cutting.

S Begin cutting with the saw frame

against the log.

S Keep the engine at full speed the

entire time you are cutting.

WARNING: If the brake band is

worn too thin it may break when the chain

brake is triggered. With a broken brake

band, the chain brake will not stop the

chain. The chain brake must be replaced

if any part is worn to less than 0.020 inch

(0.5 mm) thick. Repairs on a chain brake

should be made by your Sears Service

Centre. Take your unit to the place of pur-

chase or to the nearest Sears Service

Centre.

S This saw is equipped with a chain

brake. The brake is designed to stop

the chain if kickback occurs.

S The inertia--activated chain brake is ac-

tivated if the front hand guard is pushed

forward, either manually (by hand) or

automatically (by sudden movement).

S If the brake is already activated, it is dis-

engaged by pulling the front hand guard

back toward the front handle as far as

possible.

S When cutting with the saw, the chain

brake must be disengaged.

Disengaged

Engaged

S Allow the chain to cut for you. Exert

only light downward pressure.

S Release the throttle trigger as soon

as the cut is completed, allowing

the engine to idle. If you run the

saw at full throttle without a cutting

load, unnecessary wear can occur.

S To avoid losing control when cut is

complete, do not put pressure on

saw at end of cut.

Braking function control

CAUTION: The chain brake must be

checked several times daily. The engine

must be running when performing this

procedure. This is the only instance

when the saw should be placed on the

ground with the engine running.

S Stop engine before setting saw down.

TREE FELLING TECHNIQUES

Place the saw on firm ground. Hold the

handles with both hands and apply full

throttle. Activate the chain brake by turn-

ing your left wrist against the hand guard

without releasing your grip around the

front handle. The chain should stop imme-

diately.

WARNING: Check for broken or

dead branches which can fall while

cutting causing serious injury. Do not

cut near buildings or electrical wires if

you do not know the direction of tree

fall, nor cut at night since you will not

be able to see well, nor during bad

weather such as rain, snow, or strong

winds, etc.

Inertia activating function control

WARNING: When performing the

following procedure, the engine must

be turned off.

S Carefully plan your sawing operation

in advance.

S Clear the work area. You need a

clear area all around the tree so you

can have secure footing.

Hold the chain saw approximately 14”

(35 cm) above a stump or other wood-

en surface. Release your grip on the

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Felling cut here

S 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.

S Study the natural conditions that can

cause the tree to fall in a particular

direction. These conditions include:

S The wind direction and speed.

S The lean of the tree. The lean of a

tree might not be apparent due to

uneven or sloping terrain. Use a

plumb or level to determine the di-

rection of tree lean.

S Weight and branches on one side.

S Surrounding trees and obstacles.

S Look for decay and rot. If the trunk is

rotted, it can snap and fall toward the

operator.

S Make sure there is enough room for

the tree to fall. Maintain a distance of

2-1/2 tree lengths from the nearest

person or other objects. Engine

noise can drown out a warning call.

S Remove dirt, stones, loose bark,

nails, staples, and wire from the tree

where cuts are to be made.

First cut

Notch

Hinge

Second cut

S After removing the wood, make the

felling cut on the opposite side of the

notch. This is done by making a cut

about two inches higher than the

center of the notch. This will leave

enough uncut wood between the fell-

ing cut and the notch to form a hinge.

This hinge will help prevent the tree

from falling in the wrong direction.

Hinge holds tree on

stump and helps

control fall

Opening of

felling cut

Closing

of notch

NOTE: Before felling cut is complete,

use wedges to open the cut when

necessary to control the direction of

fall. To avoid kickback and chain

damage, use wood or plastic wedges,

but never steel or iron wedges.

Plan a clear retreat path

Direction of Fall

45_

S Be alert to signs that the tree is

ready to fall: cracking sounds, widen-

ing of the felling cut, or movement in

the upper branches.

S As tree starts to fall, stop saw, put it

down, and get away quickly on your

planned retreat path.

S DO NOT use your saw to cut down a

partially fallen tree. Be extremely

cautious with partially fallen trees

that may be poorly supported. When

a tree doesn’t fall completely, set the

saw aside and pull down the tree

with a cable winch, block and tackle,

or tractor.

FELLING LARGE TREES

(6 inches in diameter or larger)

The notch method is used to fell large

trees. A notch is cut on the side of the

tree in the desired direction of fall. After

a felling cut is made on the opposite

side of tree, the tree will tend to fall in

the direction of the notch.

NOTE: If tree has large buttress roots,

remove them before making the notch.

If using saw to remove buttress roots,

keep saw chain from contacting

CUTTING A FALLEN TREE

(BUCKING)

Bucking is the term used for cutting a

fallen tree to the desired log size.

ground to prevent dulling of the chain.

NOTCH CUT AND FELLING TREE

S Make notch cut by cutting the top of

the notch first. Cut through 1/3 of the

diameter of the tree. Next complete

the notch by cutting the bottom. See

illustration. Once the notch is cut, re-

move the wedge of wood from tree.

WARNING: Do not stand on the

log being cut. Any portion can roll

causing loss of footing and control. Do

not stand downhill of the log being cut.

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First cut on compression side of log

IMPORTANT POINTS

S Cut only one log at a time.

S Cut shattered wood very carefully;

sharp pieces of wood could be flung

toward operator.

S Use a sawhorse to cut small logs.

Never allow another person to hold

the log while cutting and never hold

the log with your leg or foot.

Second

cut

Second cut

S Do not cut in an area where logs,

limbs, and roots are tangled. Drag logs

into a clear area before cutting them.

BUCKING TECHNIQUES

First cut on compression side of log

WARNING: If saw becomes

pinched or hung in a log, don’t try to

force it out. You can lose control of the

saw resulting in injury and/or damage

to the saw. Stop the saw, drive a

wedge of plastic or wood into the cut

until the saw can be removed easily. Re-

start saw and carefully reenter the cut.

Do not use a metal wedge. Do not at-

tempt to restart your saw when it is

pinched or hung in a log.

BUCKING WITHOUT A SUPPORT

S Overcut through 1/3 of the diameter

of the log.

S Roll the log over and finish with a

second overcut.

S Watch for logs with a compresion

side. See illustration for cutting logs

with a compression side.

BUCKING USING A LOG OR

SUPPORT STAND

S Remember your first cut is always on

the compression side of the log. (Re-

fer to the illustration below for your

first and second cut).

Use a wedge to remove pinched saw

S Your first cut should extend 1/3 of the

diameter of the log.

S Finish with your second cut.

Turn saw OFF and use a plastic or

wooden wedge to force cut open.

Using a log for support

Overcutting begins on the top side of

the log with the bottom of the saw

against the log. When overcutting use

light downward pressure.

Cut

Overcutting

Undercutting

Cut

Undercutting involves cutting on the

underside of the log with top of saw

against the log. When undercutting

use light upward pressure. Hold saw

firmly and maintain control. The saw

will tend to push back toward you.

Cut

WARNING: Never turn saw up-

side down to undercut. The saw can-

not be controlled in this position.

Cut

Using a support stand

Always make your first cut on the

compression side of the log. The com-

pression side of the log is where the

pressure of the log’s weight is concen-

trated.

Cut

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Cut

S Start at the base of the felled tree

and work toward the top, cutting

branches and limbs. Remove small

limbs with one cut.

S Keep the tree between you and the

chain.

Cut

S Remove larger, supporting branches

with the cutting techniques described

in BUCKING WITHOUT A SUPPORT.

S Always use an overcut to cut small

and freely hanging limbs. Undercut-

ting could cause limbs to fall and

pinch the saw.

LIMBING AND PRUNING

WARNING: Be alert for and

guard against kickback. Do not allow

the moving chain to contact any other

branches or objects at the nose of the

guide bar when limbing or pruning. Al-

lowing such contact can result in seri-

ous injury.

PRUNING

WARNING: Limit pruning to limbs

shoulder height or below. Do not cut if

branches are higher than your shoul-

der. Get a professional to do the job.

S Make your first cut 1/3 of the way

through the bottom of the limb. This

cut will make the limb sag so that it

falls easily on the second cut.

WARNING: Never climb into a

tree to limb or prune. Do not stand on

ladders, platforms, a log, or in any po-

sition which can cause you to lose

your balance or control of the saw.

IMPORTANT POINTS

S Watch out for springpoles.

S Next make a second cut an overcut

all the way through the limb.

Springpoles are small size limbs

which can whip toward you, or pull

you off balance. Use extreme cau-

tion when cutting small size limbs.

S Be alert for springback. Watch out for

branches that are bent or under

pressure. Avoid being struck by the

branch or the saw when the tension

in the wood fibers is released.

S Frequently clear branches out of the

way to avoid tripping over them.

S Finish the pruning operation by using

an overcut so that the stump of the

limb protrudes 1 to 2 inches from the

trunk of the tree.

Second cut

First cut

1/3 of way

LIMBING

S Limb a tree only after it is cut down.

S Leave the larger limbs underneath

the felled tree to support the tree as

you work.

3rd cut 1 to 2 in.

from trunk of tree

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MAINTENANCE

CUSTOMER RESPONSIBILITIES

WARNING: Disconnect the spark plug before performing maintenance

except for carburetor adjustments.

Fill in dates as you complete

regular service

Before After Every Every

Use Use 5 hrs. 25 hrs.

Service

Dates

Yearly

Check for damaged/worn parts

Check for loose fasteners/parts

Check chain tension

Check chain sharpness

Check guide bar

Check fuel mixture level

Check guide bar and chain oil

Inspect and clean unit & decals

Check chain brake

Clean guide bar groove

Clean air filter

Clean/inspect muffler and spark

arresting screen

Replace spark plug and fuel filter

GENERAL RECOMMENDATIONS

The warranty on this unit does not cov-

er items that have been subjected to

operator abuse or negligence. To re-

ceive full value from the warranty, the

operator must maintain unit as instruct-

ed in this manual. Various adjustments

will need to be made periodically to

properly maintain your unit.

S Once a year, replace the spark plug,

air filter element, and check guide bar

and chain for wear. A new spark plug

and air filter element assures proper

air-fuel mixture and helps your engine

run better and last longer.

S Fuel Tank -- Do not use saw if fuel

tank shows signs of damage or leaks.

S Oil Tank -- Do not use saw if oil tank

shows signs of damage or leaks.

CHECK FOR LOOSE

FASTENERS AND PARTS

S Chain Brake Nuts

S Chain

S Muffler

S Cylinder Shield

S Air Filter

S Handle Screws

S Vibration Mounts

S Starter Housing

S Front Hand Guard

CHECK FOR DAMAGED OR

WORN PARTS

CHECK CHAIN TENSION

Contact your Sears Service Centre for

replacement of damaged or worn parts.

NOTE: It is normal for a small amount

of oil to appear under the saw after en-

gine stops. Do not confuse this with a

leaking oil tank.

S ON/STOP Switch -- Ensure ON/STOP

switch functions properly by moving

the switch to the STOP position.

Make sure engine stops; then restart

engine and continue.

WARNING: Wear protective

gloves when handling chain. The

chain is sharp and can cut you even

when it is not moving.

Chain tension is very important.

Chains stretch during use. This is es-

pecially true during the first few times

you use your saw. Always check

chain tension each time you use and

refuel your saw.

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1. Use the screwdriver end of the

chain adjustment tool (bar tool) to

move chain around guide bar to

ensure kinks do not exist. The

chain should rotate freely.

WARNING: If the saw is operated

with a loose chain, the chain could

jump off the guide bar and result in se-

rious injury.

CHECK CHAIN SHARPNESS

A sharp chain makes wood chips. A

dull chain makes a sawdust powder

and cuts slowly. See CHAIN SHARP-

ENING in the SERVICE AND ADJUST-

MENTS section.

CHECK GUIDE BAR

Conditions which require guide bar

maintenance:

S Saw cuts to one side or at an angle.

S Saw has to be forced through the cut.

S Inadequate supply of oil to bar/chain.

Check the condition of guide bar each

time chain is sharpened. A worn guide

bar will damage the chain and make

cutting difficult.

Guide

Bar

Chain Adjustment

Chain Brake

Tool

Nuts

Adjusting

Screw

(Bar Tool)

2. Loosen chain brake nuts until they

are finger tight against the chain

brake.

3. Turn adjusting screw clockwise

until chain solidly contacts bottom

of guide bar rail.

After each use, ensure ON/STOP

switch is in the STOP position, then

clean all sawdust from the guide bar

and sprocket hole.

Adjusting screw

To maintain guide bar:

Chain Brake Nuts

S Move ON/STOP switch to STOP.

S Loosen and remove chain brake

nuts and chain brake. Remove bar

and chain from saw.

4. Using bar tool, roll chain around

guide bar to ensure all links are in

bar groove.

S Clean the oil holes and bar groove

after each 5 hours of operation.

5. Lift up tip of guide bar to check for

sag. Release tip of guide bar, then

turn adjusting screw / turn clock-

Remove Sawdust From

Guide Bar Groove

wise. Repeat until sag does not

exist.

Adjusting Screw --

Turn

Oil Holes

6. While lifting tip of guide bar, tighten

chain brake nuts securely with the

bar tool.

S Burring of guide bar rails is a normal

process of rail wear. Remove these

burrs with a flat file.

S When rail top is uneven, use a flat file

to restore square edges and sides.

Chain Brake

Nuts

File Rail Edges

and Sides

Square

Worn Groove

Correct Groove

7. Use the screwdriver end of the bar

tool to move chain around guide

bar.

Replace guide bar when the groove is

worn, the guide bar is bent or cracked,

or when excess heating or burring of the

rails occurs. If replacement is necessary,

use only the guide bar specified for your

saw in the repair parts list or on the de-

cal located on the chain saw.

CHECK FUEL MIXTURE LEVEL

S See FUELING ENGINE under the OP-

ERATION section.

8. If chain does not rotate, it is too

tight. Slightly loosen chain brake

nuts and loosen chain by turning

the adjusting screw counterclock-

wise. Retighten chain brake nuts.

9. If chain is too loose, it will sag be-

low the guide bar. DO NOT operate

the saw if the chain is loose.

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LUBRICATION

INSPECTMUFFLERAND SPARK AR-

RESTING SCREEN

Bar Oil

Fill Cap

As the unit is used, carbon deposits

build up on the muffler and spark arrest-

ing screen, and must be removed to

avoid creating a fire hazard or affecting

engine performance. Replace the spark

arresting screen if breaks occur.

CLEANING THE SPARK

S See GUIDE BAR AND CHAIN OIL un-

ARRESTING SCREEN

der the OPERATION section.

Clean every 25 hours of operation or

annually, whichever comes first.

INSPECT AND CLEAN UNIT

AND DECALS

S After each use, inspect complete unit

for loose or damaged parts. Clean

the unit and decals using a damp

cloth with a mild detergent.

Steel

Backplate

Muffler

S Wipe off unit with a clean dry cloth.

Muffler

Bolts

CHECK CHAIN BRAKE

S See CHAIN BRAKE in the OPERATION

section.

Aluminum

Backplate

Muffler

Gasket

CLEAN AIR FILTER

A dirty air filter decreases the life and

performance of the engine and in-

creases fuel consumption and harmful

emissions. Always clean your air filter

after 15 tanks of fuel or 5 hours of op-

eration, whichever comes first. Clean

more frequently in dusty conditions. A

used air filter can never be completely

cleaned. It is advisable to replace your

air filter with a new one after every 50

hours of operation, or annually, which-

ever comes first. To clean filter:

1. Loosen and remove 3 screws from

cylinder cover.

Bolt Cover Locknut

1. Loosen and remove the 3 cylinder

cover screws. Remove the cylin-

der cover.

2. Pull off the spark plug boot.

3. Loosen and remove the locknut

from the bolt cover. Remove the

bolt cover.

4. Loosen and remove the 2 muffler

bolts. Remove the muffler, muffler

gasket and backplates. Notice the

orientation of these parts for re-

assembling.

5. Locate the 2 outlet cover screws

on the muffler. Loosen and re-

move both screws. Remove the

outlet cover and spark arresting

screen.

2. Remove cylinder cover.

3. Loosen and remove 2 screws from

air filter.

4. Remove air filter.

5. Clean the air filter using hot soapy

water. Rinse with clean cool water.

Air dry completely before reinstalling.

6. Reinstall air filter and 2 screws.

Tighten screws securely.

BACK VIEW OF MUFFLER

Muffler

Outlet Cover

Screws </