Craftsman WEEDWACKER 358.794251 Owner's manual

Brand: Craftsman

Model: WEEDWACKER 358.794251

Category: Garden tools

Type: Owner's manual

This manual is also suitable for

Operator's Manual

I (RRFTSMRN'I

25cc/1.5 cu. in. 2-Cycle

17 Inch Cutting Path / 0.080 In. Line

GASOLINE WEEDWACKER ®

Model No.

358.794251

For Occasional Use Only

WARNING:

Read and follow all Safety Rules and Operating

Instructions before first use of this product.

For answers to your questions about this product:

Call 7 am-7 pm, Mon.-Sat., or 10 am-7 pm, Sun.

• 1-800-235-5878 (.ou_ listed are CentraI Time)

Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.

530086411 4/9/01

Warranty Statement 2 Storage 11

Safety Rules 2 Troubleshooting Chart 12

Assembl_; 4 Emissions Statement 13

Operation 5 Parts Ust 15

Maintenance 9 Spanish 18

Service & Adjustments 10 Parts and Ordering BackCover

FULL ONE YEAI_ WARRANTY ON

WEEDWACKER _' UNE TRIMMER

For one year from the date of purchase, when this Craftsman Gas Powered

Weedwacker Line Tdmmer 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, spar plug, and air filter, which are expendable

parts and become worn during normal use.

If this Weedwacker line tdmmer is used for commercial purposes, this warranty ap-

plies for only 90 days from the date of purchase. If this Weedwacker line trimmer is

used for rental purposes, this warranty applies for only 30 clays from the date of pur-

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

WARRANTY SERVICE IS AVAILABLEBY RETURNING THE WEEDWACKER LINE TRIMMER

TO THE NEAREST SEARS STORE OR SERVICE CENTER IN THE UNITED STATES•

This warranty gives you specific legal rights, and you may also have other rights

which vary from state to state.

Sears, Roebuck and Co., D/817 WA, Hoffman Estates, IL 60179

WARNING: When using gar-

dening appliances, basic safety pre-

cautions must always be followed to

reduce the risk of fire and serious

injury. Read and follow all instructions.

Thispower unit can be dangerous! Op-

erator is responsible for following

• instructions and warnings on unit and in

manual. Read entire Operator's Manual

before using unit! Be thoroughly familiar

with the controls and the proper use of

the unit. Restrict the use of this unit to

persons who have read, understand,

and will follow the instructions and

warnings on the unit and in the manual.

Never allow children to operate this unit.

OPERATORS SAFETY INFORMATION

MANUAL . ON THE UNIT

DANGER: Never use blades or

flailing devices. This unit is designed

for line trimmer use only. Use of any

other accessories or attachments will

increase the risk of injury.

@@G

,_ WARNING: Trimmer line throws

objects violently. You and others can be

blinded/injured. Wear eye and leg

protection. Keep body parts clear of ro-

tating line.

Eye Protection /_

Keep children, bystanders, and animals

50 feet (15 meters) away. Stop unit im-

mediately if approached.

If situations occur which are not cov-

ered in this manual, use care and

good judgment. If you need assis-

tance, contact your Sears Service

Center or call 1-800-235-5878.

OPERATORSAFETY

• Dress propedy. Always wear safety

glasses or similar eye protection

when operating, or performing main-

tenance, on your unit (safety

.91asses ere available). Eye protec-

tion should be marked Z87.

• Always wear face or dust mask if op-

eration is dusty.

• Always wear heavy, long pants, long

sleeves, boots, and gloves. Wear-

ing safety leg guards is recom-

mended.

• Always wear foot protection. Do not

go barefoot or wear sandals. Stay

• clear of spinning line.

Secure hair above shoulder length.

Secure or remove loose clothing or

clothing with loosely hanging ties,

straps, tassels, etc. They can be

caught in moving parts.

• Being fully covered also helps pro-

tect you from debris and pieces of

toxic plants thrown by spinning line.

• Stay Alert. Do not operate this unit

when you are tired, ill, upset or un-

der the influence of alcohol, drugs,

or medication. Watch what you are

• doing; use common sense.

Wear hearing protection.

• Never start or run inside a closed

room or building. Breathing exhaust

fumes can kill.

• Keep handles free of oil and fuel.

UNIT / MAINTENANCE SAFETY

• Disconnect the spark plug before

_erforming maintenance except car-

uretor adjustments.

• Look for and replace damaged or

loose parts before each use. Look

for and repair fuel leaks before use.

Keep in good working condition.

• Replace trimmer head parts that are

chipped, cracked, broken, or dam-

aged in any other way before using

the unit.

• Maintain unit according to recom-

mended procedures. Keep cutting

line at proper length.

• Use only 0.080 in.(2 mm) diameter

Craftsman® brand line. Never use

• wire, rope, string, etc.

Install required shield propedy be-

fore using the unit. Use only speci-

fied tdmmer head; make sure it is

properly installed and securely fas-

tened.

• Make sure unit is assembled cor-

rectly as shown in this manual.

• Make carburetor adjustments with

lower end supported to prevent line

from contacting any object.

• Keep others away when making car-

buretor adjustments.

• Use only recommended Craftsman

accessories and replacement parts.

• Have all maintenance and service

not explained in this manual per-

formed by a Sears Service Center.

FUEL SAFELY

• Mix and pour fuel outdoors.

i Keep away from sparks or flames.

Use a container approved for fuel.

Do not smoke or allow smoking near

fuel or the unit.

• Avoid spilling fuel or oil. Wipe up all

fuel spills.

• Move at least 10 feet (3 meters)

away from fueling site before start-

ing engine.

• Stop engine and allow to cool before

removing fuel cap.

• Always store gasoline in a container

approved for flammable liquids.

CU'II"ING SAFETY

_WARNING: Inspect the area be-

fore each use. Remove objects

(rocks, broken glass, nails, wire, etc.)

which can be thrown by or become

entangled in line. Hard objects can

damage the trimmer head and be

thrown causing serious injury.

i Use only for tdmming, scalping, mow-

ing and sweeping. Do not use for edg-

ing, pruning or hedge tdmming.

Keep firm footing and balance. Do

not overreach.

• Keep all parts of your body away

from muffler and spinning line. Keep

engine below waist level. A hot mut-

fief can cause serious bums.

• Cut from your right to your left. Cut-

ting on left side of the shield will

throw debris away from the operator.

• Use only in daylight or good artificial

light.

• Use only for jobs explained in this

manual.

TRANSPORTING AND STORAGE

• Allow engine to cool; secure unit be-

fore storing or transporting in ve-

hicle.

• Empty the fuel tank before storing or

transporting the unit. Use up fuel left

in the carburetor by starting the en-

gine and letting it run until it stops.

• Store unit and fuel in area where

fuel vapors cannot reach sparks or

open flames from water heaters,

electric motors or switches, fur-

naces, etc.

• Store unitso line limiterblade can-

not accidentally cause injury. The

unitcan be hung by the tube.

• Store unit out of reach of children.

SAFETY NOTICE: Exposure to vibra-

t!onsthrough prolonged use ofgaso-

hne powered hand tools could cause

bloodvessel or nerve damage in the

fingers, hands, and joints of people

prone to circulation disorders or ab-

normal swellings. Prolonged usein

coldweather has been linked to blood

vessel damage in otherwise healthy

people. If symptoms occursuch as

numbness, pare, lossof strength,

change in skin color or texture, or loss

offeeling inthe fingers, hands, or

joints, discontinuethe use of this tool

and seek medical attention. An anti-

vibration system does not guarantee

the avoidance of these problems. Us-

ers who operate power tools ona con-

tinual and regular basis must monitor

closely their physical conditionand

the condition of this tool.

SPECIAL NOTICE: This unit is

equipped with a temperature limiting

muffler and spark arresting screen

which meets the requirements of Cali-

fornia Codes 4442 and 4443. All U.S.

forest land and the states of California,

Idaho, Maine, Minnesota, New Jersey,

Oregon, and Washington require by

lawthat manyintemal combustion en-

gines be equipped with a spark arrest-

ing screen. If you operate in a locale

where such regulationsexist, you are

legally responsiblefor maintaining the

operating condition ofthese parts.

Failure to do so is a violation of the

law. Fornormal homeowner use, the

muffler and spark arresting screen will

not require any service. After 50

hours of use, we recommend that your

muffler be serviced or replaced by

your Sears Service Center.

CARTON CONTENTS

Check carton contents against the fol-

lowing list.

Model 358.794251

• Trimmer

• Shield

• Wing Nut (screwed onto shield)

• Assist Handle (with bolt and knob)

* Container of Oil

• Replacement Spool

Examine parts for damage. Do not

use damaged parts.

NOTE: If you need assistance or find

parts missing or damaged, call

1-800-235-5878.

It is normal for the fuel filter to rattle in

the empty fuel tank.

Finding fuel or oil residue on muffler is

normal due to carburetor adjustments

and testing done by the manufacturer.

ASSEMBLY

dli WARNING: If received as-

sembled, repeat all steps to ensure

your unit is properly assembled and all

fasteners are secure.

Be sure to attach the assist handle to

the unit before you attach the shield.

ATTACHING THE HANDLE

(some units are already assembled)

1. Assemble handle to the unit as

shown; make sure bottom of handle

is seated in the groove in the trigger

housing.

NOTE: Knob must be assembled on

the right hand side of the unit as

shown in the illustration.

2. Make sure the bolt is seated in the

hex-shaped hole in the handle.

3. Pivot the handle to a comfortable

position.

4. "13ghtenknob securely.

ATTACHING SHIELD

_IL WARNING: The shield must be

properly installed. The shield provides

partial protection from the risk of thrown

objects to the operator and others and

is equipped with a line limiter blade

which cuts excess line to the proper

length. The line limiter blade (on under-

side of shield) is sharp and can cut you.

For proper orientation of shield, see

KNOW YOUR TRIMMER illustration in OP-

ERATION section.

1. Remove wing nut from shield.

2. Insert bracket into slot as shown.

3. Pivot shield until bolt passes

through hole in bracket.

4. Securely tighten wing nut onto

bolt.

Slot

Shield

Bracket

..g

Line Umiter Blade _/l_g

KNOW YOUR TRIMMER

READ THIS OPERATOR'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR

UNIT. Compare the illustrations with your unit to familiarize yourself with the location

of the various controls and adjustments. Save this manual for future reference.

Assist Hanclle

Tube

Muffler "_

ON/OFF Tdgger Tdmmer

Switch \ __ Spark Plug Head

Starter /F_,_/f_ "t'_ Edge

Quide

Choke Lever Shi i

'_11_'_// Pdmer Bulb

-- _ Fuel Mix LJmiter

_ILJ_ Fill Cap Blade

ON/OFF SWITCH

The ON/OFF switch is used to stop en-

gine. Move switch to the OFF position to

stop engine.

PRIMER BULB

The PRIMER BULB removes air from

the carburetor and fuel lines and fills

them with fuel. This allows you to start

the engine with fewer pulls on the

starter rope. Activate the primer bulb

by pressing it and allowing it to return

to its original form.

CHOKE

The CHOKE helps to supply fuel to the

engine to aid in cold starting. Activate

the choke by moving the choke lever to

the FULLCHOKE posiUon. After the en-

_ne attempts to start, move the choke

lever to the HALF CHOKE position. Once

engine has started, move the choke le-

ver to the OFF CHOKE position.

EDGE GUIDE

The EDGE GUIDE protects the unit from

contacting the ground during edging.

BEFORE STARTING ENGINE

WARNING: Be sure to read

the fuel information in the safety rules

before you begin. If you do not

understand the safety rules, do not

attempt to fuel your unit. Call

1-800-235-5878.

FUELING ENGINE

_k, WARNING: Remove fuel cap

slowly when refueling.

This engine is certified to operate on

unleaded gasoline. Before operation,

gasoline must be mixed with a good

quality synthetic 2-cycle air-cooled

engine oil. We recommend Craftsman

brandsyntheticoil.Mixgasolineand

oilataratioof40:1(,6,40:1ratiois

obtainedbymixing3.2ouncesofoil

with1gallonof unleaded_.asoline).

DO NOTUSE automotive odor boat oil.

These oils willcause engine damage.

When mixingfuel, follow instructions

printed on container.

Once oil is added to gasoline, shake

container momentarily to assure that

the fuel is thoroughly m=xed.Always

read and follow the safety rules

relatingto fuel before fueling your unit.

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, empty the

fuel systembefore storage 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.

Never use engine or carburetor clean-

er products in the fuel tank or perma-

nent damage may occur.

See the STORAGE section for addition-

al information.

HOW TO STOP YOUR UNIT

• To stop the engine, move the ON/

OFF switch to the OFF position.

• If engine does not stop, move choke

to the FULL CHOKE position.

E . Choke Lever A

nglne ._

ON/OFF _ _

HOW TO START YOUR UNIT

_WARNING: The trimmer head

willtum while starting the engine.

Avoid any contact with the muffler.A

hot muffler can cause serious burns.

STARTING A COLD ENGINE (or a

warm engine after running out of

fuel)

1. Set unit on a flat surface.

2. Move ON/OFF switch to the ON

position.

3. Slowly press the primer bulb 6

times.

4. Move choke lever to FULL CHOKE

position.

5. Squeeze the throttle tdgger fully and

hold through all remaining steps.

/_AL_/,Ch°ke

Lever

_Pri%er

"_ Bulb

6. Pull starter rope handle sharply

until engine sounds as it if is trying

to start, but do not pull rope more

than 6 times.

7. As soon as engine sounds as if it

is trying to start, move choke lever

to the HALF CHOKE position.

8. Pull starter rope sharply until engine

runs, but no more than 6 pulls.

NOTE: If the engine doesn't start

after 6 pulls (at the HALF CHOKE

position), move the choke lever to

the FULL CHOKE position and press

the primer bulb 6 times. Squeeze

and hold the throttle tdg.ger and pull

the starter rope 2 more times. Move

the choke lever to the HALF CHOKE

position and pull the starter rope un-

til the engine runs, but no more than

6 pulls. If the engine still doesn't

start, it is probably flooded. Proceed

to STARTINGA FLOODED ENGINE.

9. Once the engine starts, allow it to

run 10 seconds, then move the

choke lever to the OFF CHOKE

position. Allow the unit to run for

30 more seconds at OFF CHOKE

before releasing the throttle trigger.

NOTE: If engine dies with the

choke lever in the OFF CHOKE

position, move the choke lever to

the HALF CHOKE position and pull

the rope until engine runs, but no

more than 6 pulls.

STARTING A WARM ENGINE

1. Move ON/OFF switCh to the ON posi-

tion.

2. Move the choke lever to the HALF

CHOKE position.

3. Squeeze and hold the throttle trig-

ger. Keep throttle trigger fully

squeezed until the engine runs

smoothly.

4. Pull starter rope sharply until engine

runs, but no more than 5 pulls.

5. Allow engine to run 15 seconds,

then move the choke lever to the

OFF CHOKE position.

NOTE: If engine has not started, pull

starter rope 5 more pulls. If engine still

does not run, it is probably flooded.

STARTING A FLOODED ENGINE

Flooded engines can be started by

placing the choke lever in the OFF

CHOKE position; then, pull the rope to

clear the engine of excess fuel. This

could require pulling the starter handle

many times depending on how badly

the unit is flooded.

If the unit still doesn't start, refer to

TROUBLESHOOTING TABLE or call

1-800-235-5878.

OPERATING INSTRUCTIONS

It is recommended that the engine

not be operated for longer than 1

minute at full throttle.

OPERATING PosmoN

ALWAYS WEAR:

Eye Protection

Long Pants

Heavy Shoes

Cut from your right to yourleff.

Always release the throttle trigger and

allow the engine to returnto idle

speed when notcutting.

To stopengine:

• Release the throttletrigger.

Move the ON/OFF swi[c_ to the OFF

position.

TWIST AND EDGE

The Twist and Edge feature allows for

easy edging of sidewalks, patios,

driveways, etc.

1. Pull the tab toward the engine.

2. Twistthe tube to the edging posi-

tion; release tab.

TRIMMER LINE ADVANCE

The trimmer line will advance approxi-

mately 2 In. (5 cm) each time the bot-

tom of the trimmer head istapped on

the groundwith the engine runningat

full throttle.The most efficient line

length isthe maximum length allowed

by the line,miter.

Always keep the shield in place when

the tool isbeing operated.

To advance line:

• Operate the engine at fullthrottle.

Holdthe trimmerhead parallelto and

above the grassyarea.

• Tap the bottomof thetrimmerhead

lightlyonthe groundone time. Ap-

proximately21n. (5 cm) of linewillbe

advancedwitheaChtap.

Toadvanceline,tapbottomof trimmer

headon groundonetime.

Line limiter cutsline 1

properlength.

_IL WARNING: Always wear eye

protection. Never lean over the trim-

mer head. Rocks or debris can rico-

chet or be thrown into eyes and face

and cause blindness or other serious

injury.

Do not run the engine at a higher

speed than necessary. The cutting

line will cut efficiently when the engine

is run at less than full throttle. At lower

speeds, there is less engine noise and

vibration. The cutting line will last

longer and will be less likely to '_Neld"

onto the spool.

Always tap the trimmer head on a

grassy area. Tapping on surfaces such

as concrete or asphalt can cause ex-

cessive wear to the trimmer head.

If the line is worn down to 2 in. (5 cm) or

less, more than one tap will be required

to obtain the most efficient line length.

_,WARNING: Use only 0.080"

(2 mm) diameter line. Other sizes of

line will not advance properly and can

cause serious injury. Do not use other

materials such as wire, string, rope,

etc. Wire can break offduring cutting

and become a dangerous missilethat

can cause serious injury.

CU'I'rlNG METHODS

Use minimum speed and do not

crowd the hne when cutting around

hard objects (rock, gravel, fence

posts, etc.), which can damage the

trimmer head, become entangled in

the line, or be thrown causing a seri-

ous hazard.

• The tip of the line does the cutting.

You will achieve the best performance

and minimum line wear by not crowd-

ing the line into the cutting area. The

right and wrong ways are shown be-

low.

"Rpof the Line Line Crowded Into

Does The Cutting

SCALPING - The scalping technique

removes unwanted vegetation down

to the ground. Hold the bottom of the

trimmer head about 3 in. (8 cm) above

the ground and at an angle. Allow the

tip of the line to strike the ground

around trees, posts, monuments, etc.

This technique increases line wear.

MOWING - Your trimmer is ideal for

mowing in places conventional lawn

mowers cannot reach. In the mowing

position, keep the line parallel to the

ground. Avoid pressing the head into

I Work Area the ground as this can scalp the

,flli_ _K ground and damage the tool.

Mowing I_

• The line will easily remove grass and ._,_L_ f.

weeds from around walls, fences,

trees and flower beds, but it also can

cut the tender bark of trees or shrubs

and scar fences. To help avoid dam-

age especially to delicate vegetation

or trees with tender bark, shorten line

to4-5 in. (10-13 cm) and use at less

than full throttle.

• For trimming or scalping, use less

than full throttle to increase line life

and decrease head wear, espsclally:

During light duty cutting.

Near objects around which the line

can wrap such as small posts,

trees or fence wire.

• For mowing or sweeping, use full

throttle for a good clean job.

TRIMMING - Hold the bottom of the

trimmer head about 3 in. (8 cm) above

the ground and at an angle. Allow only

the tip of the line to make contact. Do

not force trimmer line into work area.

3 in. (8

Above Ground _ " '_'_3:

SWEEPING - The fanning action of

the rotating line can be used for a

quick and easy clean up. Keep the

line parallel to and above the surfaces

being swept and move the tool from

side to side.

EDGING - Adjust trimmer to the edg-

ing position (see TWIST AND EDGE

section). Allow only the tip of the line

to make contact. Do not force trimmer

line into work area.

i_Edging /

I i

,lll_l 7.

MAINTENANCESCHEDULE

_i WARNING: Disconnect the spark plug

except for carburetor adjustments.

CARE & MAINTENANCE TASK

Check for loose fasteners and parts

Check for damaged or worn parts

Inspect and clean unit and labels

Clean air filter

Inspect muffler and spark arresting screen

Replace spark plug

before performing maintenance

WHEN TO PERFORM

Before each use

After each use

Every 5 hours ofoperation

Every 50 hours of operation

Yearly

GENERAL RECOMMENDATIONS

The warranty on this unit does not

cover items that have been subjected

to operator abuse or negligence. To

receive full value from the warranty,

the operator must maintain unit as

instructed in this manual. Various ad-

jedustmentswill need to be made peri-

ically to properly maintain your unit.

CHECK FOR LOOSE

FASTENERS AND PARTS

• Spark Plug Boot

• Air Filter

_ Housing _r_

Assist Handle Screws

• Debris Shield

CHECK FOR DAMAGED OR

WORN PARTS

Contact Sears Service Center for re-

placement of damaged or worn pads.

• ON/OFF Switch - Ensure ON/OFF

switch functions properly by moving

the switch to the OFF position. Make

sure engine stops; then, restart en-

gine and continue.

• Fuel Tank - Discontinue use of unit if

fuel tank shows signs of damage or

leaks.

• Debris Shield - Discontinue use of

unit if debris shield is damaged.

INSPECT AND CLEAN UNIT AND

LABELS

• After each use, inspect complete unit

for Ioo6e or damaged pads. Clean

the unit and labels using a damp cloth

with a mild detergent.

• Wipe off unit with a clean dry cloth.

CLEAN AIR RLTER

A dirty air filter decreases engine per-

formance and increases fuel consump-

tion and harmful emissions. Always

clean after every 5 hours of operation.

1. Clean the cover and the area

_ around itto keep dirt from falling

intothe carburetor chamber when

the cover is removed.

2. Remove parts as illustrated.

NOTE: Toavoid creating a fire hazard

or producing harmful evaporative

emissions, do not clean filter in gaso-

line or other flammable solvent.

3. Wash the filter in soap and water.

4. Allow filter to dry.

5. Add a few drops of oil to the filter;

squeeze the filter to distributeoil.

6. Replace pads.

_S Filter

crews

Cover

INSPECT MUFFLER AND SPARK

ARRESTING SCREEN

IIWARNING: The muffler on this

product contains chemicals known to

the State of California to cause cancer.

_,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.

As your unit is used, carbon deposits

build up on the muffler and spark ar-

restincj screen and must be removed

to avoid creating a fire hazard or af-

fecting engine performance.

For normal homeowner use, the muf-

fler and spark arrestingscreen will not

require any service. After 50 hours of

use, we recommend that your muffler

be serviced or replaced by your Sears

Service Center.

REPLACESPARKPLUG

Replacethesparkplugeach.yearto

ensuretheenginestartseasierand

runsbetter.Setsparkpluggapat

0.025in. Ignitiontimingisfixed and

nonadjustable.

1. Twist, then pull off spark plug boot.

2. Remove spark plug from cylinder

and discard.

3. Replace with Champion RCJ-TY

spark plug and tighten with a 3/4

in. socket wrench (10-12 ft.-Ibs).

4. Reinstall the spark plug boot.

REPLACING THE LINE

1. Remove spool by firmly pulling on

tap button.

2. Clean entire surface of hub and

spool.

3. Replace with pre-wound spool, or

cut a length of 20 feet of 0.08(7' (2

ram) diameter Craftsman® brand

line. Never use wire, rope, string,

etc., which can break off and be-

come a dangerous missile.

4. Insert one end of line about 1/2

inch (1 cm) into the small hole on

the inside of the spool.

5. Wind line evenly and tightly onto

spool. Wind in the direction of the

arrow on the spool

Small

Hole'--_,t///_(_l.,_.." Spool

Line in Notch

Hub

Line exit hole

6. Push the line into the notch, leav-

ing 3 to 5 inches ( 7 - 12 cm) un-

wound.

7. Insert the line into the exit hole in

the hub as shown in the illustration.

8. Align the notch with the line exit

hole.

9. Push spool into hub until it snaps

into place.

t0. Pull the line extending outside of

the hub to release it from the

notch.

CARBURETOR ADJUSTMENT

_;_ WARNING: The trimmer head

will be spinning during most of this

procedure. Wear your protective

equipment and observe all safety pre-

cautions. After making mixture adjust-

ments, recheck idle speed.

Carburetor adjustment is critical and if

done improperly can permanently

damage the engine as well as the car-

buretor. If you require further assis-

tance or are unsure about performing

this procedure, call our customer as-

sistance help line at 1-800-235-5878.

Old fuel, a dirty air filter, a dirty fuel fil-

ter, or flooding may give the impres-

sion of an improperly adjusted carbu-

retor. Check these conditions before

adjusting the carburetor.

The carburetor has been carefully set

at the factory. Adjustments may be

necessary if you notice any of the fol-

lowing conditions:

• Engine will not idle. See IDLE SPEED

under adjusting procedure.

• Engine dies or hesitates instead of

accelerating. See ACCELERATION

CHECK under adjusting procedure.

• Loss of cutting power. See MIXTURE

ADJUSTMENT (L or H) under adjusting

procedure.

There are three adjustment screws on

the carburetor. The low speed adjust-

ment screw is marked with the letter L,

and the high speed adjustment screw

is marked with the letter H. The third

screw is the idle adjustment screw.

Adjustment (_djustment (L)

Idle Screw Adjustment

ADJUSTING PROCEDURE

CAUTION: Do not force plastic limiter

caps on screws beyond the built-in

stops or damage will occur. Be sure

trimmer line is extended to the maxi-

mum length allowed by the line limiter

blade.

Initial Settings:

1. Turn beth mixture screws (L and

H) counterclockwise until they

stop.

2. Turn the idle speed screw clock-

wise until it stops. Now turn coun-

terclockwise 4 1/2 turns.

3. Start engine, cut grass for 3 min-

utes, then proceed to adjust

screws according to the instruc-

tions below. If engine perfor-

mance at initial settings is accept-

able, no further adjustments are

necessary. If engine does not

start, refer to TROUBLESHOOTING

TABLE. If still unable to remedy sit-

uation, call 1-800-235-5878.

Idle Speed

Allow engine to idle. Adjust speed until

engine runs without stalling.

• Tum idle speed screw clockwise to

increase engine speed if engine

stalls or dies.

• Turn idle speed screw counterclock-

wise to decrease engine speed.

No further adjustments are necessary

if performance is satisfactory.

Low Speed Mixture Adjustment - L

1. Allow the engine to idle.

2. Turn low speed mixture screw (L)

slowly clockwise until the speed

begins to drop.

3. Turn the low speed mixture screw

(L) counterclockwise untilthe

speed increases and then starts to

drop again.

4. Set the low speed mixture screw

(L) at the midpoint between the

two positions.

Readjust the idle speed (See IDLE

SPEED).

High Speed Mixture Adjustment - H

CAUTION: Do not operate engine at

full throttle for prolonged periods while

making adjustments as damage to the

engine can occur. Adjust the mixture

screw 1/16 of a rum at a time. A 1/16

turn is about the width of the slot in the

top of the screw.

1. Allow the engine to idle.

2. Squeeze the throttle trigger fully.

Turn the high speed mixture screw

(H) counterclockwise until it stops.

3. Turn the high speed mixture screw

(H) 1/16 of a turn clockwise at a

time until the engine runs smoothly.

After completing adjustments, check

for acceleration. Reset if necessary.

Acceleration Check

If engine dies or hesitates instead of

accelerating, turn the low speed mix-

ture screw (L) counterclockwise until

you have smooth acceleration.

4BbWARNING: Perform the follow-

ing steps after each use:

• Allow engine to cool, and secure the

unit before stodng or transporting.

• Store unit and fuel in a well ventilated

area where fuel vapors cannot reach

sparks or open flames from water

heaters, electric motors or switches,

fumaces, etc.

• Store unit with all guards in place.

Position unit so that any sha.rp object

cannot accidentally cause injury.

• Store unit and fuel well out of the

reach of children.

SEASONAL STORAGE

Prepare unit for storage at end of sea-

son or if it will not be used for 30 days

or more.

If your unit is to be stored for a period

of time:

• Clean the entire unit before lengthy

storage.

• Store in a clean dry area.

• Lightly oil external metal surfaces.

FUEL SYSTEM

Under FUELING ENGINE in the OPERA-

TION section of this manual, see mas-

sage labeled IMPORTANT regarding

the use of gasohol in your engine.

Fuel stabilizer is an acceptable alter-

native in minimizing the formation of

fuel gum deposits during storage. Add

stabilizer to the gasoline in the fuel

tank or fuel storage container. Follow

the mix instructions found on stabilizer

container. Run engine at least 5 min-

utes after adding stabilizer.

Craftsman 40:1, 2-cycle engine oil (air

cooled) is already blended with fuel

stabilizer. If you do not use this Sears

oil, you can add a fuel stabilizer to

your fuel tank.

INTERNAL ENGINE

• Remove spark plug and pour 1 tea-

spoon of 40:1, 2-cycle engine oil (air

cooled) through the spark plug open-

ing. Slowly pull the starter rope 8 to

10 times to distribute oil.

• Replace spark plug with new one of

recommended type and heat range.

• Clean air filter.

• Check entireunitfor loosescrews,

nuts,and bolts.Replace any dam-

aged, broken,or wom parts.

• Atthe beginningof the next season,

use only Iresh fuel havingthe proper

gasoline'tooilratio.

OTHER

• Do not store gasoline from one sea-

son to another.

• Replace your gasoline can if it starts

to rust.

TROUBLESHOOTING TABLE

WARNING: Always stop unit and disconnect spark plug before perform-

ing all of the recommended remedies below except remedies that require

TROUBLE

Engine wilt not

start.

Engine will

not idle

propedy.

Engine will not

accelerate,

lacks power,

or dies under

a load.

Engine

smokes

excessively.

Engine runs

hot.

operation of the unit.

CAUSE REMEDY

1. Move ON/OFF switch to ON.

1. ON/OFF switch in OFF

position.

2. Engine flooded.

3. Fuel tank empty.

4. Spark plugnot fidng.

5. Fuel not reaching

carburetor.

6. Carburetor requires

adjustment,

1. Carburetor requires

adjustment.

2. Crankshaft seals worn.

3. Compression low.

1. Air filterdirty.

2. Spark plug fouled,

3. Carburetor requires

adjustment.

4, Carbon build-upon

muffler outlet screen.

5. Compression low.

1. Choke partially on.

2. Fuel mixture incorrect.

3. Air filter dirty.

4. Carburetor requires

adjustment.

1. Fuel mixture incorrect.

2. Spark plug incorrect.

3. Carburetor requires

adjustmenL

4. Carbon build-up on

muffler outlet screen.

2, See =Starling a Rooded Engine"in

Operation Section.

3, Filltank with correct fuel mixture.

4. Install new spark plug.

5. Check for dirtyfuel filter;replace.

Check for kinked or splitfuel line;

repair or replace.

:6. See "CarburetorAdjustment"in

Service and Adjustments Section.

1. See =Carburetor Adjustment"in

Service and Adjustments Section.

!2. Contact Sears Service Center.

3. Contact Sears Service Center.

1. Clean or replace air filter.

2. Clean or replace plug

and regap.

3. See "CarburetorAdjustment"in

Service and Adjustments Section.

4. Contact Sears Service Center.

5. Contact Sears Service Center.

1. Adjustchoke.

2. Emptyfuel tank and refillwith

correct fuel mixture,

3. Clean or replace air filter.

4. See =Carburetor Adjustmen_ in

Service and Adjustments Section.

1. See =FuelingEngine"in Operation

section.

2. Replace with correct spark plug.

3. See =Carburetor Adjustment"in

Service and AdjustmentsSection.

4. Contact Sears Service Center.

YOUR WARRANTY RIGHTS AND OB-

LIGATIONS: The U.S. Environmental

Protection Agency/California Air Re-

sources Board and Sears, Roebuck

and Co., U.S.A., are pleased to explain

the emisslons control system warranty

on your year 2000-2003 small off-road

engine. In California, all new small off-

road engines must be designed, built,

and equipped to meet the State's strin-

gent anti-smog standards. Sears must

warrant the emission control system on

your small off-road engine for the peri-

ods of time listed below provided there

has been no abuse, neglect, or improp-

er maintenance of your small off-road

engine engine. Your emission control

system includes parts such as the car-

buretor and the ignition system. Where

a warrantable condition exists, Sears

will repair your small off-road engine

engine at no cost to you. Expenses •

covered under warranty include diagno-

sis, parts and labor. MANUFACTUR-

ER'S WARRANTY COVERAGE: If any

emissions related part on your engine

(as listed under Emissions Control War-

ranty Parts List) is defective or a defect

in the materials or workmanship of the

engine causes the failure of such an

emission related part, the part will be

repaired or replaced by Sears. OWN-

ER'S WARRANTY RESPONSIBILI-

TIES: As the small off-road.engine en-

gine owner, you are responsible for the

performance of the required mainte-

nance listed in your Owner's Manual.

Sears recommends that you retain all

receipts covering maintenance on your

small off-road engine, but Sears cannot

deny warranty solely for the lack of re-

ceipts or for your failure to ensure the

performance of all scheduled mainte-

nance. As the small off-road engine en-

gine owner, you should be aware that

Sears may deny you warranty coverage

if your small off-road engine engine or

a part of it has failed due to abuse, ne-

glect, improper maintenance, unap-

proved modifications, or the use of parts

not made or approved by the original

equipment manufacturer. You are re-

sponsible for presenting your small off-

road engine to a Sears authorized re-

pair center as soon as a problem exists.

Warranty repairs should be completed

in a reasonable amount of time, not to

exceed 30 days. If you have any ques-

tions regarding your warranty rights and

responsibilities, you should contact your

nearest authorized service center or call

Sears at 1-800-469-4663. WARRANTY

COMMENCEMENT DATE: The war-

ranty period begins on the date the

small off-road engine is purchased.

LENGTH OF COVERAGE: This war-

ranty shall be for a period of two years

from the initial date of purchase. WHAT

IS COVERED: REPAIR OR REPLACE-

MENT OF PARTS. Repair or replace-

ment of any warranted part will be per-

formed at no charge to the owner at an

approved Sears Service Center. If you

have any questions regarding your war-

ranty rights and responsibilities, you

should contact your nearest authorized

service center or call Sears at

1-800-469-4663. WARRANTY PE-

RIOD: Any warranted part which is not

scheduled for replacement as required

maintenance, or which is scheduled

only for regular inspection to the effect

of "repair or replace as necessary" shall

be warranted for 2 years. Any war-

ranted part which is scheduled for re-

placement as required maintenance

shall be warranted for the period of time

up to the first scheduled replacement

point for that pad. DIAGNOSIS: The

owner shall not be charged for diagnos-

tic labor which leads to the determina-

tion that a warranted part is defective if

the diagnostic work is performed at an

approved Sears Service Center. CON-

SEQUENTIAL DAMAGES: Sears may

be liable for damages to other engine

components caused by the failure of a

warranted part still under warranty.

WHAT IS NOT COVERED: All failures

caused by abuse, neglect, or improper

maintenance are not covered. ADD-ON

OR MODIRED PARTS: The use of

add-on or modified parts can be

grounds for disallowing a warranty

claim. Sears is not liable to cover fail-

ures of warranted parts caused by the

use of add-on or modified pads. HOW

TO RLE A CLAIM: If you have any

questions regarding your warranty rights

and responsibilities, you should contact

your nearest authorized service center

or call Sears at 1-800-469-4663.

WHERE TO GET WARRANIY SER-

VICE: Warranty services or repairs shall

be provided at all Sears Service Cen-

ters. Call 1-800-469-4663.

MAINTENANCE, REPLACEMENT

AND REPAIR OF EMISSION RE-

LATED PARTS: Any Sears approved

replacement part used in the perfor-

mance d any warranty maintenance or

repair on emission related pads will be

provided without charge to the owner if

the part is under warranty. EMISSION

CONTROL WARRANTY PARTS LIST:

Carburetor,IgnitionSystem:Spark Plug

(covered upto maintenanceschedule),

IgnitionModule, Mufflerincludingcata-

lyst. MAINTENANCE STATEMENT:

The owner is responsibleforthe perfor-

manceof all requiredmaintenanceas

definedinthe owner'smanual.

This engine is certified to be emissions compliant for the following use:

[] Moderate (50 hours)

[] Intermediate (125 hours)

[] Extended (300 hours)

REPAIR PARTS

SEARS MODEL 3S8.794251

_I_ WAflNING

All repairs, adjustments and

maintenance not de_=rlbed In

the Operetor's Mannal muat be

performed by qualified service

personnel.

16 17

Ref.

10.

11.

12.

13.

14.

15.

16.

Part No.

530016193

530047923

530038682

530O42O84

530047925

530054159

530071416

53O095853

530016179

530047924

530054160

5300158S0

530016118

530016173

530047919

530052285

530015814

530071328

De_crtpUon

W_c_er

Throttle Hsg, (Right)

Throttle Lever

Spdnll-Compression

Ac_Jator

Locator-dght

Assy-D,'k,e Shah Hsg,

Flex-Drive Shaft

Screw

ThrottleI-Lsg.(Left)

Locator-lett

Screw

W_ngnut

Bolt-Handld

AssistHanole

Line kJmlter

Screw-Line Umiter

Shield Kit Ass_/.

(Incl. 16& 17)

19.

20.

21.

22.

23,

24.

25.

26.

27.

Not

Part No.

53OO15820

530015934

5300t6118

53OO95574

53OO54459

530095770

530401958

530401957

71-85846

Shown

530086411

530055574

530055505

530055570

530055425

530038128

Desodptlon

Bolt

Screw

Wmgnul

Dust Cup

Assy-Wtm Guard

Hub Ass'y.(ind.# 25,26)

Sp_ing-Ralum

Retainer*Spool

Spool w/Line

Operator Manual

Decal-Shaft Warning

Decal-Instruction

Decal-Modal

Decal-Shield

Decal-On/Off

REPAIR PARTS

SEARS TRIMMER MODEL 358.794251

1 2 3

I I

47 48 49

maintenance not descdbed In

the Operator's Manual must

be performed by qualified

sendce personnel.

Ref.

11.

13,

14.

Pad NO.

530071362

53OO42O88

530071361

530015953

Champion

530071'359

530071363

530055535

530016014

! 530071363

530071443

530038747

530038686

! 530016353

530036569

530036375

530054414

530015716

530015852

530015254

530052431

530036145

530039211

530015954

_0OS4448

Description Ref, Part NO.

Kit-Muffler (incl.2.3) 26. 530(_4449

MufflerSpdn9 27. 530071363

Screen-Spark Arrestor

Screw-Cylinder 28. 530037692

Spark Plug(RCJ-7Y) 29. 530027569

Kit-Cylinder 30. 530071325

Gasket-Cylinder/Carb. 31. 530015882

Ca_, Adeplor 32. 530027953

Scmw-Carb Adptr. 33. 530023817

Gasket-Carb. 34. 530015941

Kit-Carb. Ass'),. 35. 530071363

(incl. LimilerCap) 36. 530069945

Choke Plate

Choke Shutter 37. 530055120

Screw-Carburetor 38. 530015162

FilterSuppod Rate 39. 530071357

Air Filter Foam

Air FilterCover 40, 530032124

Screw-Air Box 41. 530019179

Choke Spacer 42. 530015945

Washer ! 43. 530032125

Spacer-lgnit. Module i 530015934

530015810

IgnitionModule 46. 530055516

Screw-lgnit. MOdule 47. 530049379

GroundWire Ass'y.

Description

Lead Wire Ass_.

Kit-Englne Gasket

(Incl, 7.10.35,56)

S_lch-On/OIf

;tarter Handle

Kit-Rope

Screw

Drive Coupling

Spring Stader Dog

Rot. Ring/C'shaft

Gasket-Cylinder

ConnectingRod

Assy.

PistonRing

PistonPin Retainer

Kit-Piston

(Incls. 37.38 S Fin

OuterBoaring

C'case Seal

Ret Ring-C'case

Inner Bearing

Scmw-Shd/Fan Hsg

Screw

Rear Shroud

Fuel Tank ASS',/.

incl. 50,51 )

Rill.

48.

49,

50.

51.

52.

53.

54.

55.

56.

57.

58.

61.

62.

63.

64.

65.

66.

67.

68.

Part No. DescdgUon

530016131 V_Lsher-fueltank

530015888 Screw-Fuel Tank

530014347 Fuel Cap Assy.

530095646 Fuel pickup Assy

530069247 Fuel L_e (Small)

53006_216 Fuel Une (Large)

530055351 Shield-Heat

530015805 Screw-Heat Sh;eld

530071363 O-ring-C'case

530054753 CrankshaftASS'./.

530012462 CrankcaseAssyo

(Incl. 40-43)

530071360 C'ca3e/C'shaftAssy.

(Incl. 34.40-43.57.58

530069886 Flywheel Ass'y.

530015828 Washer-Flat

530016224 Screw-Pulley

530053985 Retainer-Pulley

530071324 Kit-Starter Pulley

(Incl. 3t)

530042086 Slarter Spring

530055507 Assy.-Fan Hsg.

530018810 Screw

530055546 Assy-11_rottleCab;e

REPAIR PARTS

SEARS TRIMMER MODEL 358,794251

Carburetor Assembly Kit #530071443-CIU-W10

_ WARNING

All repairlk acijustments and

maintenance not ciescdbed in

Ihe Operator's Manual mus_

lie iiIdomled bY qUlllltlld

service personmlL

KIT O --_) 2

KIT D --_----_ __ KITI_ I

.gi. _" K,T

3 4

Ref. Part No. DescdpUon

1. 530038478 LimiterCap (low)

2, 530038479 LimiterCap (high)

3. 530071441 Kit-CarburetorRepair

(KIT=IndicatesContents)

4. 530071442 Kit-CarburetorMinor Repair

( D= IndicatesContents)

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Get it fixe at your home or ours!

For repair of major brand appliances in your own home...

no matter who made it, no matter who sold it!

1-800-4-MY-HOME sMAnytime, day or night

(1-800-469-4663)

www.sears.corn

To bring in products such as vacuums,

lawn equipment and electronics for repair, call for

the location of your nearest Sears Parts & Repair Center.

1-800-488-1222 Anytime, dayor night

www.sears.com

For the replacement parts, accessories and owner's manuals

that you need to do-it-yourself, call Sears PartsDirect sM!

1-800-366-PART 6arn- 11p.mCST,

(1-800-366-7278) 7 days a week

www.sears.com/partsdirect

To purchase or inquire about a Sears Service Agreement:

1-800-827-6655

7 a.m, - 5 p.m. CST, Mort. - Sat.

Para pedir servicio de reparaci6n a domicd_o,

y para ordenar piezas con entrega a dornicd_o

1-888-SU-HOGAR s_

Au Canada pour service en franqais:

1-877-LE-FOYER s_

(1-888-784-6427 i SE_/ARS 1HomeCentrar

(1-877-533-6937)

® Registered Trademark / TM Trademark of Sears, Roebuck and Co

Craftsman WEEDWACKER 358.794251 Owner's manual

Brand: Craftsman

Model: WEEDWACKER 358.794251

Category: Garden tools

Type: Owner's manual

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