Operator's Manual

[RAFTSMAN.°

18-Inch Straight Shaft/31 cc/2-Cycle

GAS-POWERED BRUSHWACKER ®

Brushcutter/Trimmer

Model No.

316.74520

,_ WARNING: Before using this product, read this

manual and follow all its Safety Rules and

• Espa_ol

Save this manual for future reference.

Sears, Roebuck, and Co., Hoffman Estates, IL 60179 USA

OPERATOR S MANUAL PART NO. 769-00066

PRINTED IN U.S.A.

2/02

Revl

Warranty Statement

California Proposition 65 Warning

Spark Arrestor

Rules for Safe Operation

Contents of Hardware Pack

2 Service and Adjustments 19

2 Storage 23

3 Specifications 23

FULL ONE-YEAR WARRANTY ON CRAFTSMAN ® GAS-POWERED BRUSHWACKER ® BRUSHCUTTER/'rRIMMER

For one year from the date of purchase, when this Craftsman Gas-Powered Brushwacker Brushcutter/Trimmer is

maintained, lubricated and tuned up according to the operating and maintenance instructions in the operator's manual,

Sears will repair, free of charge, any defect in materials or workmanship.

This warranty excludes nylon line, spark plug, air filter, and expendable parts that become worn during normal use.

If this Brushwacker Brushcutter/Trimmer is used for commercial purposes, this warranty applies for 90 days from the date

of purchase. If this Brushwacker Brushcutter/Trimmer is used for rental purposes, this warranty applies for 30 days from

the date of purchase.

This warranty applies only while this product is in use in the United States.

NOTE: For users on U.S. Forest Land and in the states of California, Maine, Oregon and Washington. All U.S. Forest

Land and the state of California (Public Resources Codes 4442 and 4443), Oregon and Washington require by law that

certain internal combustion engines operated on forest brush and/or grass-covered areas be equipped with a spark

arrestor, maintained in effective working order, or the engine be constructed, equipped and maintained for the prevention

of fire. Check with your state or local authorities for regulations pertaining to these requirements. Failure to follow these

requirements could subject you to liability or a fine. This unit is factory equipped with a spark arrestor. If it requires

replacement, ask your Sears Service Center to install the Accessory Part #182747 Spark Arrestor.

and the condition of this tool.

The purpose of safety symbols is to attract your

attention to possible dangers. The safety symbols, and

their explanations, deserve your careful attention and

understanding. The safety warnings do not by

themselves eliminate any danger. The instructions or

warnings they give are not substitutes for proper

accident prevention measures.

SYMBOL MEANING

,_ SAFETY ALERT SYMBOL: Indicates

danger, warning, or caution. Attention is

will result in serious injury to yourself or to

others. Always follow the safety precautions

to reduce the risk of fire, electric shock, and

personal injury.

WARNING: Failure to obey a safety warning

can result in injury to yourself and others.

Always follow the safety precautions to

reduce the risk of fire, electric shock, and

personal injury.

_ AUTION: Failure to obey a safety warning

may result in property damage or personal

injury to yourself or to others. Always follow

the safety precautions to reduce the risk of

influence of alcohol, drugs, or medication.

• Children and teens under the age of 15 must not use

the unit, except for teens guided by an adult.

• All guards and safety attachments must be installed

properly before operating the unit.

• Inspect the unit before use. Replace damaged parts.

place and secure. Replace parts that are cracked,

chipped, or damaged in any way. Do not operate the

unit with loose or damaged parts.

• Use only 0.095 in (2.41 mm) diameter genuine

the cutting attachment.

• Clear the area of children, bystanders and pets. At a

minimum keep all children, bystanders and pets outside a

50 ft. (15 m.) radius; there still may be a risk to bystanders

from thrown objects. Encourage bystanders to wear eye

protection. If you are approached, stop the engine and

cutting attachment immediately.

• Squeeze the throttle control and check that it returns

• Always stop the engine and allow it to cool before

• Mix and add fuel in a clean, well-ventilated area

-3-

WHILE OPERATING

• Never start or run the unit inside a closed room or

building. Breathing exhaust fumes can kill. Operate

this unit only in a well ventilated area outdoors.

• Wear safety glasses or goggles that are marked as

meeting ANSI Z87.1 standards, and ear/hearing

protection when operating this unit. Wear a face or

dust mask if the operation is dusty. Long sleeve shirts

are recommended.

• Wear heavy, long pants, boots and gloves. Do not

wear loose clothing, jewelry, short pants, sandals, or

go barefoot. Secure hair above shoulder level.

best grip.

balance.

remain hot for a short time.

AFTER USE

remove any gum buildup. Oil the blade(s) with machine

oil to prevent rust.

• Lock up and store the cutting blade in an appropriate

area to protect the blade from unauthorized use or

damage.

-5-

SYMBOL MEANING

• PRIMER BULB

• UNLEADED FUEL

• HOT SURFACE WARNING

Do not touch the engine or muffler. These parts get extremely hot from operation.

When turned off they remain hot for a short time.

• ON/OFF STOP CONTROL

ON / START / RUN

• ON/OFF STOP CONTROL

OFF or STOP

• SHARP BLADE(S)

WARNING: There is a sharp blade on the cutting attachment shield. To prevent serious injury,

do not touch edge. Do not touch the edges of the 44-tooth saw blade. Wear gloves.

•BRUSHCUTTERS - Replace Dull Blade(s)

Do not sharpen the brush blade(s). Sharpening the blade(s) can cause the blade tip to

break off while in use; this can result in severe personal injury.

-6-

• Brushcutter/Trimmer

• Hardware Pack

-8-

HANDLE

NOTE: The holes in the top and middle clamps will line up

only when assembled correctly.

4. Place the clamps and assist handle the over the shaft

housing and onto the bottom clamp.

5. Hold each hex nut in the bottom clamp recess with a

finger. Start screws with a large Phillips screwdriver.

easily moved in the clamp assembly. Do not remove

the screws or nuts.

line on the decal touches the clamp assembly (Fig. 2).

position the assist handle to the location that provides

you the best grip.

is secure.

REMOVING AND INSTALLING CUTTING

CAUTION: To prevent serious personal injury

and damage to the unit, the cutting attachment

shield must be used when operating this unit

with the cutting attachment.

Remove the cutting attachment shield when using

the unit as a brushcutter.

WARNING: The cutting attachment shield

should NOT be installed when operating the unit

with a blade. Remove the cutting attachment

shield before removing or installing the blade.

Fig. 2

Fig, 3

Shield

Fig. 4

-9-

PROPER STANCE

overreach. Keep all parts of your body away from the

BLADE OPERATING TIPS

material to be cut. The blade has maximum cutting

• Swing the unit in the same direction as the blade

spins, increasing the cutting action.

To reduce the chance of material wrapping around the

• Swing the unit into material to be cut from your right to

_lb WARNING: Always wear eye, hearing, foot

blade(s). Sharpening a blade can cause the

blade tip to break off while in use. This can re-

sult in severe personal injury.

WARNING: To avoid serious personal injury,

turn off engine and allow blade to stop before

if accidentally touched.

Do not clear away cut material with the engine

running or the blade turning.

MAINTENANCE SCHEDULE

These required maintenance procedures should be

these procedures take your unit to any nonroad

authorized service dealer.

I WARNING: To prevent serious injury, never do I

'_ k maintenance or repairs with unit running.

unit will not start.

NOTE: Maintenance, replacement, or repair of the emission

or authorized service dealer.

after 50 hours of operation, if you notice lost RPM, poor

performance or general lack of acceleration, this service

FREQUENCY MAINTENANCE REQUIRED REFER TO:

Before Starting Engine Check for loose or damaged parts.

GENERAL RECOMMENDATIONS

perform maintenance on the unit while it is

operator must maintain the unit as instructed in this

should also be included as part of any seasonal tune-up.

CHECK FOR LOOSE FASTENER PARTS

• Spark Plug Wire

• Clean the unit and label s using a damp cloth with a

mild detergent.

• Wipe off the unit with a clean dry cloth.

AIR FILTER MAINTENANCE

NOTE: Clean and re-oil the air filter every 10 hours of

operation. Your unit's air filter is one of the most

important areas to maintain. If it is not maintained, you

will VOID the warranty. Before cleaning, make sure the

1. Place the choke lever in the PARTIAL choke position (B).

NOTE: The choke lever must be in the PARTIAL choke

filter/muffler cover (Fig. 23). Use a flat blade or

T-20 Torx bit screwdriver.

3. Pull the cover from the engine. Do not force.

Choke Lever

Cleaning the Air Filter

1. Remove air filter/muffler cover. See Removing the

2. Remove the air filter from behind the air filter/muffler

NOTE: Operating the unit without the air filter and air

filter/muffler cover assembly wi!! VOID the warranty.

NOTE: The choke lever must be in the PARTIAL choke

2. Insert the four (4) screws into the holes in the air

TO REPLACE SPARK PLUG

air gap is 0.020 in. (0.50 ram). Remove plug after every 25

hours of operation and check its condition (Fig_28).

1. Stop the engine and pull the spark plug wire off of

2. Clean around the spark plug and remove it from the

engine could be damaged by grit entering the cylinder.

3. Set the air gap at 0.020 in. (0.50 mm) using a wire

4. Replace the spark plug wire.

f

TO CLEAN UNIT

household cleaners that contain aromatic oils such as

WARNING: To prevent injury, turn the unit off

before servicing the cutting attachment.

LINE INSTALLATION FOR THE

CUTTING ATTACHMENT

WARNING: Always use Craftsman® trimmer

replacement line. To avoid injury, never use

metal-reinforced line, wire, or rope, etc..These

with a diameter of 0.095 inch (2.41 mm). The engine may

overheat and fail if you use a size other than specified.

1. Hold the reel housing with one hand and unscrew

captured bolt inside the Bump Knob to make sure it

damaged.

reel housing (Fig. 39).

NOTE: Always clean the reel, reel housing, and shaft

4. Check the indexing teeth on the reel and reel

replace the reel or reel housing (Fig. 39).

1. Take approximately 40 feet (12.2 m) of new trimming

line. Loop it into two equal lengths. Insert each end

of the line through one of the two holes in the reel.

Pull the ends through equally until the loop is as

small as possible (Fig. 31).

\

2. Place your index finger between the two lines to stop

NOTE: Failure to wind the lines in the direction indicated

will cause the cutting head to operate incorrectly.

2. Grasp the line ends and pull firmly to release them

3. Hold the reel in place and screw the Bump Knob TM

3. Remove the spring from the old reel (Fig. 29).

5. Place the spring in the new reel.

NOTE: The spring must be assembled on the reel before

8. Hold the reel in place and install the Bump Knob by

Reel F--

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