Craftsman 536797480 User Manual 3.8 HP 9 EDGER/TRIMMER Manuals And Guides L9050211

CRAFTSMAN Edger Manual L9050211 CRAFTSMAN Edger Owner's Manual, CRAFTSMAN Edger installation guides

User Manual: Craftsman 536797480 536797480 CRAFTSMAN 3.8 HP 9 EDGER/TRIMMER - Manuals and Guides View the owners manual for your CRAFTSMAN 3.8 HP 9 EDGER/TRIMMER #536797480. Home:Lawn & Garden Parts:Craftsman Parts:Craftsman 3.8 HP 9 EDGER/TRIMMER Manual

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8I/AVR8 OWNER'S MANUAL

CRRFTSMRN _

3.8 Horsepower

9 Inch

EDGER/TRIMMER

MODEL NO.

536.797480

Caution:

Read and_follow all Safety

Rules and Operating

Instructions before first use

of this product.

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

339908 03/04/96

Table of Contents 2

Warranty 2

Safety Rules 2-3

Contents of Shipping Carton 4

Assembly 5-7

Operation 7-11

Maintenance 11-12

Service and Adjustments 13-14

Storage 14-15

Troubleshooting 15

Spanish (Espafiol) 26-40

Edger Repair Parts 16-21

Engine Repair Parts 22-25

Parts Ordering/Service Beck Cover

LIMITED TWO-YEAR WARRANTY ON CRAFTSMAN EDGER/TRIMMER

For two years from the date of purchase, when this Craftsman Edger/Trimmer is main-

rained, lubricated, and tuned up according to the operating and maintenance instruc-

tions in the owner's manual, Sears will repair, free of charge, any defect in material or

workmanship.

If this Craftsman Edger/Trimmer is used for commercial or rental purposes, this war-

rarity applies for only 90 days from the date of purchase.

This warranty does not cover the following:

• Expendable items which become worn during normal use, such as spark plugs, etc.

•Repairs necessary because of operator abuse or negligence, including bent crank

shafts and the failure to maintain the equipment according to the instructions con-

tained in the owner's manual.

WARRAHT3' SERVICE IS AVAILABLE BY RETURNINGTHE CRAFTSMAN EDGER/

TRIMMER TO THENEAREST SEARS SERVICE CENTER/DEPARTMENT IN THE

UNITED STATES. THIS WARRANTY APPLIES ONLY WHILE THIS PRODUCT IS IN

USE IN THE UNITED STATES.

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

may vary from state to state.

Sears, Roebuck and Co., D817WA, Hoffman Estates, IL 60179

Look for this symbol to point out Important safety precautions. It means--

A'FrENTION!!! Become alert!!! Your safety Is involved. s

,_ CAUTION: Always disconnect spark footwear that will improve footing on

plug wire and place wire where it cannot

contact spark plug to prevent accidental

starting when setting-up, transporting,

adjusting or making repairs.

IMPORTANT: Safety standards require

operator presence controls to minimize the

risk of injury. Your Edger/Trimmer is

equipped with such controls. Do not attempt

to defeat the function of the operato r

presence control under any circumstances.

BEFORE USE

• Read the owner's manual carefully. Be

thorQughly familiar with the controls and

the proper use of the edgerltrimme'r.

Know how to stop the edger/trimmer and

disengage the controls quickly.

•Do not operate the edger/trimmer without

wearing adequate outer garments. Wear

slippery surfaces.

• Keep the area of operation clear of all

persons, particularly small children and

pets.

• Thoroughly inspect the area where the

edger/trimmer is to be used and remove

all foreign objects.

FUEL SAFETY

•Handle fuel with care; it is highly flam-

mable.

•Use an approved container.

•Check fuel supply before each use,

allowing space for expansion as the heat

of the engine and/or sun can cause fuel to

expand.

•Fill fuel tank outdoors with extreme care.

Never fill fuel tank indoors. Replace fuel

tank cap securely and wipe up spilled

fuel.

•Never remove the fuel tank cap ot add

fuel to arunning or hot engine.

•Never store fuel or edger/trimmer with

fuel in the tank inside a building where

fumes may reach an open flame.

OPERATING SAFETY

•Never allow children or young teenagers

to operate the edger/trimmer. Keep them

away while it is operating. Never allow

adults to operate the edger/trimmer

without proper instruction.

•Do not operate this machine if you are

taking drugs or other medication which

can cause drowsiness or affect your

ability to operate this machine.

•Do not use this machine if you are

mentally or physically unable to operate

this machine safely.

•Always wear safety glasses or eye

shields during operation or while perform-

ing an adjustment or repair to protect

your eyes from foreign objects that may

be thrown from the edger/trimmer.

• Do not put hands or feet near or under

rotating parts.

•Exercise extreme caution when operating

on or crossing gravel drives, walks, or

roads. Stay alert for hidden hazards or

traffic.

• Exercise caution to avoid slipping or

falling.

• Never operate the edger/trimmer without

proper guards, plates, or other safety

protective devices in place.

• Never operate the edger/trimmer at high

transport speeds on slippery surfaces.

Look behind and use care when backing.

• Never allow bystanders near the edger/

trimmer.

• Keep children and pets away while

operating.

• Never operate the edger/trimmer without

good visibility or light.

• Do not run the engine indoors. The

exhaust fumes are dangerous, containing

CARBON MONOXIDE, an ODORLESS

and DEADLY GAS.

•Take all possi6ie precautions when

leaving the edger/trimmer unattended.

Stop the engine.

• Do not overload the edger/trimmer

capacity by attempting to edge too deep

at too fast a rate.

SAFESTORAGE

• Always refer to the owner's manual

instructions for important details if the

edger/trimmer _sto be stored for an

extended period.

• Never store the edger/trimmer with fuel in

the fuel tank inside a building where

ignition sources are present such as

water and space heaters, clothes dryers,

and the like. Allow the engine to cool

before storing in any enclosure.

•Keep the edger/trimmer in safe working

condition. Check all fasteners at frequent

intervals for proper tightness.

REPAIR/ADJUSTMENTS SAFETY

•After striking a foreign object, stop the

engine (motor). Remove the wire from the

spark plug, and keep the wire away from

the plug to prevent accidental starting.

Thoroughly inspect the edger/trimmer for

any damage, and repair the damage

before restarting and operating it.

•If edger/trimmer should start to vibrate

abnormally, stop engine (motor) and

check immediately for the cause. Vibra-

tion is generally a warning of trouble.

•Stop the blade whenever you leave the

operating position. Also, disconnect the

spark plug wire before unclogging the

blades and when making any repairs,

adjustments, or inspections.

•When cleaning, repairing, or inspecting,

shut off the engine and make certain all

moving parts have stopped.

•Never attempt to make any adjustments

while the engine is running except when

specifically recommended by the manu-

facturer.

Z_ WARNING: This unit is equipped with

an internal combustion engin_ and should

not be used on or near any unimproved for-

est-covered, brush-covered or grass-cov-

ered land unless the engine's exhaust sys-

tem is equipped with a spark attester meet-

ing applicable local or state laws (if any). If a

spark arrester is used, it should be main-

tained in effective working order by the op-

erator.

In the state of California the spark arrester is

required by law (Section 4442 of the Califor-

nia Public Resources Coda). Other states

may have similar laws. Federal laws apply

on federal lands. A spark arrester/muffler is

available through your nearest Sears Autho-

rized Service Center (See ENGINE RE-

PAIR PARTS section in this manual).

WARNING: The engine exhaust from

this product contains chemicals known to

the State of California to cause cancer, birth

defects or other reproductive harm.

(4) - Hex Head Wide Flan_le (8) - Nuts, 5/16-18 (1)- Spacer .70 inch

Screws 5/16-18x 5/8 inch Reg Hex CtrJk {left rear wheel assembly)

3/8-16 Whiz Lock

Illllilillll

(1) -Shoulder Bolt 3/6-16xl.400 inch (2) - Hair Pins

£'!

%.1 I

(1) - 5/16-18 x 4.50 inch Hex Head Screw

1-O._tt_ Pin (1) -5/16-18 Hex Head

Wide Flange Locknul (4) -Carriage Bolts

5/16-18x 1-5/8 inch

©!

(2) - 1.39 Inch I°ng Spacer

(front wheel assembly)

(1) - 1/2 x 3/4 inch

Flatwasher(left rear

wheel assembly)

Parts packed separately in carton (not shown full size)

(1) -Lower Handle (1) -Upper Handle

Assembly i4) - Wheels

8xl.75

I-Owner's Manual (not shown)

2 - Parle Bags (not shown)

(4) - Flatwashers

.344x.69x.065

(front wheel assembly)

1 - Container SAE30 oil

(1) -Handle Panel Assembly

L_ CAUTION: Always wear safety

glasses or eye shields While assembling

edger/trimmer.

TOOLS REQUIRED FOR ASSEMBLY

2 - 1[2 inch Wrenches

(or adjustable wrench)

2 - 9/16 inch Wrenches

(or adjustable wrenches)

2 - Adjustable Wrenches

1- Knife

1-Regular Screwdriver

1-Pliers

The figure to the right shows the edger/

trimmer completely assembled.

References to the right or left hand side

of the edger/trimmer are from the viewpoint

of the operator's position behind the unit.

TO REMOVE EDGER/TRIMMER

FROM CARTON

• Remove the lower handle, control rod,

upper handle and packing material from

the carton.

• Remove wheels, parts bag and packing

material from the carton.

•Cut down all four corners of the carton.

•Remove packing material from around

edger/trimmer blade.

TO ASSEMBLE THE EDGER/

TRIMMER

NOTE: Lower handle should be attached

first as it is difficult to attach lower handle

with the wheels on.

• Place lower handle inside the edger/

trimmer frame as shown in middle figure

and secure in place with four 5/16-18x5/8

hex head wide flange screws and four

5/16-18 hex head Iocknuts found in parts

bag. Hold back on the lower handle as

you tighten the screws. Locknuts should

be on the inside'of the frame as shown in

middle figure of this page.

•Attach the right rear wheel to the wheel

support rod of the edger/trimmer as

shown in lower figure on this page with a

1/2 x 3/4 inch flatwasher and cotter pin

found in parts bag. Bend ends of cotter

pin with pliers.

Handle

Lower Handle

5/16-18 X 5/8 inchl_I

hex head wide \\ _l-_HexH ead I

flange Screws

Frame _ _

VIEW FROM RIGHT REAR WHEEL

Flatwasher Wheel

1/2x3/4 inch

•Attach the left rear wheel to the edger/

trimmer shown in figure below with a

3/8-16 x 1.40 inch Shoulder bolt, spacer

and 3/8-16 hex head whiz lock nut found

in parts bag and tighten nut.

VIEW FROM INSIDE LEFT REAR WHEEL

Spacer

(.70 inch long) Shouk_erBolt

3/8-16xl .40

3/8-16

Whiz-lock Nut

•Attach the front wheels to the Edger/

Trimmer shown in figure below with a

5/16-18 x 4.50 inch hex head screw, four

11/32 x 11/16 inch flatwashers, two

spacers and a5/16-18 hex head wide

flange locknut found in parts bag.

VIEW FROM FRONT

._--. ,. Flatwasher

11/32xt 1/16

control rod through the hole in the quill

support arm. Attach with hairpin found in

parts bag.

•Move the clutch lever to rearmost

NEUTRAL position and latch in.

•If it is difficult to get the clutch lever into

NEUTRAL, it may be necessary to loosen

the four screws and nuts holding the

lower handles to the frame as shown in

first figure on page 7. Pry up (forward) on

the handles only enough to allow the

clutch lever to freely enter the NEUTRAL

position. Re-tightan nuts and screws.

When the clutch lever is in NEUTRAL the

quill support arm should be close to the

spacer and screw behind it as shown

in last figure on this page•

'_ _Rod

_1_First _epth-_

_Selection I_ Quill

Handle Panel

11/32xl

Hex Head Screw

5/16-18 Wide

Flange Locknut

Inch Long)

•Place the handle panel on the inside of

lower handle. Hold in place while placing

the upper handle on the lower handle as

shown in next figure. Align holes in upper

handle, lower handle and handle panel,

secure in place with four 5/16-18 x

1-5/8 inch carriage bolts and four

5/16-18 hex head Iocknuts found in parts

bag. Locknuts should be to the inside of

the handle panel as shown.

•The clutch lever is located on the left

hand side of upper handle when properly

installed. Insert one end of the control rod

from left to right through the hole in the

clutch lever and attach with a hair pin

found in parts bags. See figure.

*Place the clutch_lever in the first depth

selection and insert the other end of the

5/16-18xl-5/8

5/16-18 Hex

Head Lock,nut

Handle

VIEWFROMRIGHTSIDEOFUNI,T

Right Side

Lower Handle

/CHECKLIST

Before you operate and enjoy your new

edger/trimmer, we wish to ensure that you

receive the best performance and satisfac-

tion from this quality product, please review

the following checklist:

,# All assembly instructions have been

completed.

,/ No remaining loose parts in carton.

/All fasteners have been properly

installed and tightened.

While learning how to use your edger/trim-

mer, pay extra attention to the following im-

portant items:

// Engine oil is at proper level.

,#/ Fuel tank is filled with fresh, clean,

regular unleaded gasoline.

,// Become familiar with the location and

function of all controls. Operate

controls before starting engine.

KNOW YOUR EDGER/TRIMMER

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

EDGER/TRIMMER. Compare the illustrations with your EDGER/TRIMMER to familiarize

yourself with the location of various controls and adjustments. Save this manual for future

reference.

Fast Slow Stop Primer Button

Control Rod

Oil FillCap/

Throttle

Starter.

Handle

Blade

Guard

VIEW OF BLADE AREA _'

Wheel

Throttle Control - Used to control the en-

gine speed.

Primer Button - Injects fuel directly into the

carburetor manifold for faster starts,

Starter Handle -The engine on this Edger/

Trimmer is equipped with an easy pull recoil

starter.

Clutch Lever - Used to start and stop the

blade and control the depth of cut.

Blade Guard - Used to prevent stones or

other material from being thrown at the op-

erator.

Index Lever - Permits adjustment from the

edging (vertical) position to trimming (hori-

zontal) position. To change position, pull the

index lever and rotate the quill assembly to

the _esired angle or position.

Adjustable Rear Wheel - Right rear wheel

is adjustable to level edger/trimmer when

edging along a curb(curb-hopping).

Adjustable Front Wheel - Front wheel is

adjustable fr_ side-to-side for balance.

Also, can be adjusted down for curb-hop-

ping.

HOWTO USE YOUR EDGER

LL_WARNING: The operation of this

edger/trimmer can result in foreign objects

being thrown into the eyes, which can cause

severe eye damage. Always wear safety

glasses or eye shields while operating the

edger/trimmer.

We recommend standard safety glasses or

Wide Vision Safety Mask for over your

glasses.

TO STOP EDGER/TRIMMER

•To stopO the engine, make sure the

clutch lever is all the way back or up and

move the throttle control lever to the

STOP pesiton.

Z_ CAUTION: Never leave the edger/

trimmer unattended while the engine is

running. Always disengage the cutting blade

and stopl_ the engine.

TO USE THROTTLE CONTROL

•Run at full'_ engine speed during

normal use.

• Push throttle control lever up to increase

speed; down _to decrease speed.

TO USE PRIMER BUTTON

seconds between each push.

•Do not use primer button I._.to restart

a warm engine after ashort shutdown.

TO USE THE CLUTCH LEVER

•Start the engine and move the clutch

lever forward or down to engage the

cutting blade•

•Select the edging depth you need.

There are 5 selections up to 2-3/4

inches deep.

IMPORTANT: If very deep edging is

required, we recommend that a shal-

low cut be made first, then cuts at

greater depths until the desired depth

• is obtained.

TO USE THE INDEX LEVER

(TRIMMING OPERATION)

• Stop engine and disconnect the spark

plug wire from the spark plug.

• Loosen the knob shown in figure below

on the fror_t wheel arm and slide the

wheel all the way to the right side.

•Tighten the knob securely.

Z_CAUTION: The front wheel must be

in the extreme right position to prevent the

blade from striking wheel while in trimming

position.

Knob

•Pull the index lever out of its notch as

shown below and position it in the

notch marked 90 °. See figure on page 9.

• Reconnect the spark plug wire and

start the engine. Move the clutch

lever to the desired trimming height.

,Z_ CAUTION: Never leave the edger/

trimmer unattended while the engine is

running. Always disengage the cutting

•Push primer button ]._-five times. See _blade and stop the engine.

page 7figure for location. Wait about two

INDEX LEVER IN THE NOTCH MARKED "90"

TO USE CURB-HOPPING FEATURE

The adjustable front and right rear wheel

feature permit the edger/trimmer to be used

on an uneven surface such as a curb as

shown in figure below.

Stop the engine and disconnect the

spark plug wire from the spark plug.

Loosen the knob on the front wheel arm

bracket and slide the wheel to the best

position to clear the curb and balance the

unit.

•Tighten the knob securely.

•Using the curb height adjust lever, lower

the front wheel to a position that places

the edger/trimmer level with the left rear

wheel on the uneven curb surface.

•Loosen tee knob on the inside right rear

of the main frame that secures the wheel

support rod as shown below.

•Slide the rear wheel down until the

edger/trimmer is level when the left

wheel is on the curb.

•Tighten the knob securely.

=Reconnect the spark plug wire and start

the engine. The depth of cut adjustment

is the same as described in Edging

Operation paragraph.

(Behind_.

Wheel) \

FrontWheel Arm

Rear

Support

Rod AdjustLever Wheel

Z_ CAUTION: Keep away from the

rotating blade. The blade can cause injury.

BEFORE STARTING ENGINE

PRE-USE CHECK OF CONTROLS

All controls should be checked for proper

function before servicing or starting the

engine.

•Move the clutch lever into all six

positions in the selector plate. Make

sure the clutch lever snaps into all six

holes.

•Return the clutch lever to the rearmost

hole in the selector plate.

FILL/ADD OIL:

This edger/trimmer was shipped with a 20

ounce container of SAE30 motor oil. This

oil must be added to the.engine before

operating. Remove the oil fill cap-dipstick

and fill the crankcase to FULL line on

dipstick (20 ounces). Check frequently

when filling the crankcase. DO NOT

OVERFILL.

NOTE: Engine may already contain some

residual oil.

Tighten the fill cap-dipstick securely each

time you check the oil level.

OIL RECOMMENDATIONS

Only use high quality detergent oil rated

with API service classification SG. Select

the oil's SAE viscosity grade according to

your expected operating temperature.

Although multi-viscosity oils (5W30, 1OW30,

etc.) improve starting in cold weather, these

multi-viscosity oils will result in increased oil

consumption when used above 32°F.

Check your engine oil level more frequently

to avoid possible engine damage from

running low on oil.

IColder <<

5W30

TO ADD ENGINE OIL

•Place the edger/trimmer on a level

surface.

•Remove the oil fill cap-dipstick as shown

in figure on page 10.

•Fill the engine crankcase, pouring slowly.

Do not overfill. For approximate capacity

see PRODUCT SPECIFICATIONS chart

in this manual.

•Reinstall the oil fill cap-dipstick and

tighten securely.

• Check oil before each use. Add if

needed.

•Change oil after the first 2 operating

hours and every 25 operating hours

thereafter.

Fuel Fill Cap Oil FillCap-

Z_ WARNING: Experience indicates

that alcohol blended fuels called gasohol or

using methanol can attract moisture which

leads to separation and formation of acids

during storage. Acidic gas can damage the

fuel system of an engine while in storage.

To avoid engine problems, the fuel system

should be emptied before storage of 30

days or longer. Drain fuel tank, start engine

and let it run until fuel lines and carburetor

are empty. Use fresh fuel next season. See

Storage Instructions for additional informa-

tion. Never use engine or carburetor

cleaner products in the fuel tank or perma-

nent damage may occur.

TO START THE ENGINE

FILL GAS

Fill the fuel tank with clean, fresh, unleaded

grade automotive gasoline. Be sure that

the container you pour the gasoline from is

clean and frOe'from dust or other foreign

particles. Never use gasoline that may be

stale from long periods of storage in the

,_ainer.

CAUTION: Never fill the gas tank

while the engine is running or hot.

Immediately wipe off any spilled gasoline

before attempting to start the engine.

,Z_ CAUTION: Gasoline is flammable

and caution must be used when handling or

storing it. Do not fill fuel tank while edger/

trimmer is running, hot, or when in an

enclosed area. Keep away from open

flame, electrical spark, and do not smoke

while filling the fuel tank. Never fill fuel tank "

completely; but fill the tank to within 1/4-1/2

inch from the top to provide space for °

expansion of fuel. Always fill fuel tank

outdoors and use a funnel or spout to

prevent spilling. Make sure to wipe up any

spilJedfuel before starting the engine. Store

gasoline in a clean, approved container,

and keep the cap in place on the container.

Keep gasoline in a cool, well ventilated

place; never in the house. Never buy more

than a30 day supply of gasoline to assure

volatility. Gasoline is intended to be used as

afuel for internal combustion engines

therefore, do not use gasoline for any other

purpose, Since many children like the smell

of gasoline, keep it out of their reach

because the fumes are dangerous to inhale,

as well as being explosive. tO

Before starting the engine, be sure you

have read and understood all the instruc-

tions on the preceding pages. The edger/

trimmer is equipped with a recoil starter.

The operation of the engine is controlled by

the throttle control lever.

• Pull the clutch lever all the way back or

up to the rearmost hole to raise and

disengage the blade.

• Move the throttle control lever, see figure

on page 7 to the FAST position.

•Push primer button five times, see figure

on page 7. Wait about two seconds

between each push.

NOTE: Do not use primer button to

restart awarm engine after ashort

shutdown.

To start engine, grasp the engine starter

handle firmly with your right hand.

Hold the edger handle firmly with your

left hand.

Pull up sharply on the recoil stader

handle. DO NOT allow the starter rope to

snap back, let it rewind slowly while

holding the starter handle. If engine fails

to start after three pulls, push primer

button two times and pull starter rope

again.

When the engine starts. Push throttle

control lever up to increase speed; down

to decrease speed. Run at full engine

speed during normal use.

NOTE: The cutting blade speed is

controlled by the engine speed. To

reduce the cutting blade speed, push

down on the throttle control lever. To

increase the blade speed, push the

throttle control lever up.

• To stop the engine, make sure the clutch

lever is all the way back or up and move

the throttle control lever to the STOP

IO position.

Z_ CAUTION: Never run the engine

indoors or in a poorly ventilated area.

Engine exhaust contains carbon monoxide,

an odorless and deadly gas. Keep hands,

feet, hair and loose clothing away from any

moving parts on the engine or edgerl

trimmer. Avoid the muffler and surrounding

areas. Temperatures may exceed 150 °F.

EDGING TIPS

•Edging is best performed when conditions

are dry. If the soil is to wet, dirt becomes

packed in and around the blade causing

premature belt wear and decreased

performance.

•If dirt does become packed around the

blade, stop the engine, remove the spark

plug wire, and remove the packed debris

before continuing to edge.

CUSTOMER RESPONSIBILITIES

•If very deep edging is required, we

recommend that a shallow cut be made

first, then cuts at greater depth until the

desired depth is obtained.

•Uniform edging can be performed when

the blade guide rides on and against the

surface which you are edging.

•Edging can be customized by varying the

number of passes and by the distance

your blade is from the surface you are

edging.

PRODUCT SPECIFICATIONS

Horse Power: 3.8

Displacement: 9.52 cu. in. (156 cc)

Gasoline Capacity: 2.0 qt. (unleaded)

Lubrication: 20 oz. SAE-30W

Spark Plug: Champion CJ-8 or

Equivalent

SCHEDULE SERVICE

DATES

Fill In dates as After Before Frs- E_ary Every Every Begin Before

you complete First Each qusntly 10 25 Each Storage

regular service 2 use Hours Hours Houn Season

Hours

Lubricateall Pivot Points p,t

Lubricate Wheel Axles _vj

Check Engine Oil Level p_,

Change EngineOil p_' _

Replace Air Cleaner Filter p_'

Check Spark Plug _p,4

Check Drive Bell .V"

Tighten All Screws and Nuts p_

Check BladeWear/Damage p_

GENERAL RECOMMENDATIONS

The warranty on this edger/trimmer does

not cover items that have been subjected to

operator abuse or negligence. To receive

full value from the warranty, the operator

must maintain the edger/trimmer as in-

structed in this manual. The above chart is

provided to assist the operator in properly

maintaining the edger/trimmer.

LUBRICATION

•After each 25 hours of use of your edger/

trimmer, apply light machine oil to all

moving parts, particularly the wheels.

•The oil in the engine crankcase must be

changed after the first 2hours of opera-

tion and after each 25 hours of use there-

after. See OIL RECOMMENDATIONS in

OPERATIONAL sectional in this manual.

TO CHANGE OIL

•Disconnect the spark plug wire from the

spark plug.

•Remove the oil drain plug as shown be-

low and drain the oil into a fiat pan.

•After draining all the oil, reinstall the oil

drain plug securely.

NOTE: The oil will drain more freely when

the engine is warm.

VIEW FROM REAR

Plug

AIR CLEANER

Replace the filter once ayear; more often

under dusty or dirty conditions, DO NOT

attempt to clean or oil the air filter.

To install a new air filter, do the following:

•Disconnect the spark plug wire from the

spark plug.

• Turn the cover as shown below to the left

counterclockwise and remove the cover

and the air filter from the flange.

•Discard the air filter.

•Clean the cover and the flange thor-

oughly.

•Insert the new air filter into the cover.

•Push the cover firmly against the flange

and turn it to the right clockwise as far as

it Will go as shown in figure below. Be

sure the retainers are locked around the

flange.

•Reconnect the spark plugwire.

_urn cover to the leftf(counterclockwise)

_, toremove

• Flange

Slot

Tab

Turn cover to the right

(clockwise)ot install

Z_ CAUTION: Never run the engine

without the air cleaner element installed. A

defective air cleaner can result in loss of

engine power and can cause excessive

wear or damage to the engine components '

if dirt or dust is permitted to enter the

engine through the carburetor. A damaged

air cleaner, or one that is clogged with dust

or dirt should be replaced immediately.

SPARK PLUG

Clean the spark plug and reset the gap

periodically. Before removing spark plug,

clean the area around its base to prevent

dirt from entering into the engine. Replace

the spark plug if the electrodes are pitted or

burned or if the porcelain is cracked. Clean

the spark plug by carefully scraping the

electrodes with a knife or screwdriver (do

not sand blast or use a wire brush). Be sure

the spark plug is clean and free of foreign

material. Check the electrodes gap with a

wire feeler gauge and reset to .030 if

necessary. If a new spark plug is needed,

refer to the Engine manual for the proper

replacement spark plug.

Before reinstalling the spark plug, coat the

threads lightly with graphite or light oil to

insure easy removal. Tighten the spark plug

firmly into the engine. If a torque wrench is

available, torque the spark plug to 15 foot-

pounds.

//_ CAUTION: Always stop the engine

and disconnect the spark plug wire before

making any repairs to the edger/trimmer.

V-BELT REPLACEMENT"

Your edger/trimmer is equipped with a

V-belt made of a special compound. If the

belt becomes worn or breaks replace it with

an orignal equipment bell as shown in the

Repair Parts section of this manual. Never

use a substitute.

• Disconnect the spark plug wire.

• Put the clutch lever back or up to release

the tension from the bell.

• Remove the two top screws from the

engine pulley cover as shown in figure

below and remove the cover. Make sure

you do not lose the spacer on the rear

screw,

Rear

Screw Guide Screw

•Remove the front screw securing the belt

guide as shown above to the engine.

Then loosen the rear screw and swing the

belt guide away from the belt.

• Remove the three screws from the belt

guard as shown in next figure.

•Remove the belt from the engine and quill

assembly pulleys and install the new belt.

•Install and secure front belt guard.

•Secure the belt guide loosened earlier.

•Reinstall the engine pulley cover and

reconnect the spark plug wire.

Belt

Belt,

Screws

BLADE REPLACEMENT

The cutting blade is subject to wear and

damage such as nicks and dents. This will

not generally affect its function.

This blade is specially designed to not re-

quire sharpening. Do not attempt to sharpen

this blade. The blade is reversible. If the

nicks and dents are excessive, remove the

blade, turn it around and reinstall. This will

provide a fresh cutting edge. The blades

should be replaced if both sides are worn

and damaged.

Z_ CAUTION: When removing or tight-

ening the blade nut, always use the method

shown in figure on next page. The holding

wrench must always be positioned on the

nut behind the cutting blade.

Z_ CAUTION: Do not attempt to sharpen

this blade. Sharpening could,damage it and

cause it to break, which may further result in

injury to yourself or a bystander.

To replace the blade, do the following:

•Disconnect spark plug wire.

•Remove the 1/2-20 Iocknut shown in next

figure securing the blade to the drive

shaft.

•Remove the blade.

•Install the new blade and reinstall nut.

Tighten the nut securely.

•Reconnect the spark plug wire.

_Locknut

TO ADJUST CARBURETOR

The carburetor shown below has been pre-

set at the factory and readjustment should

not be necessary. However, if the carbure-

tor does need to be adjusted, proceed as

follows:

_Carburetor

.... High Speed

. I_J AdjustingScrew

"- _"='_-'-'_(C ose fingertght

only)

•Close the high speed adjusting screw by

hand.

•Do not over-tighten.

•Then open it 1-1/4 to 1-1/2 turns.

• Start the engine and let it warm up.

• Set the throttle control to FAST. Adjust

the high speed adjusting screw In until

the engine speed or sound alters. Adjust

the,screw out until the engine speed

sound alters. Note the difference between

the two limits and set the screw in the

middle of the range.

•If the engine tends to stall under load or

not accelerate from low speed to high

speed properly, adjust the high speed

screw out in 1/8 turn increments until the

problem is resolved.

• Let the engine run undisturbed for 30

seconds between each setting to allow

the engine to react to the previous

adjustments,

IMPORTANT: Never tamper the engine

governor, which is factory set for proper

engine speed. Overspeeding the engine

above the factory high speed setting can

be dangerous. If you think the engine-

governed high speed needs adjusting,

contact your nearest Sears Service

Center, which as the proper equipment

and experience to make any necessary

adjustments.

L_ CAUTION: Never store your

edger/trimmer indoors or in an enclosed,

poorly ventilated area Jfgasoline remains

in the tank fumes may reach an open

flame, spark or pilot light from a furnace,

water heater, clothes dryer, cigarette, etc.

EDGER/TRIMMER

•Clean the edger/trimmer thoroughly;

remove all debris and wipe the unit dry.

•Inspect the edger/trimmer for worn or

damaged parts and tighten all loose

hardware.

• Oil all points described in the Lubrication

paragraph in the Maintenance section of

this, manual.

•Store the edge/trimmer in a protected

area and cover for additional protec-

tion.

IMPORTANT: A yearly checkup or tune-

up by aSears Service Center is a good

way of ensuring that your edger/

trimmer will provide maximum perfor-

mance for the next season.

ENGINE

IMPORTANT: It is important to prevent

prevent gum deposits from forming in

essential fuel system parts such as the

carburetor, fuel filter, fuel hose, or tank

during storage. Also, experience indicates

that alcohol-blended fuels called gaschol or

using ethanol or methanol can attract

moisture which leads to separation and

formation of acids during storage. Acidic

gas can damage the fuel system of an

engine while in storage.

To prevent engine damage (if edger/

trimmer is not used for more than 30 days)

follow the steps on next page.

•To remove gasoline, run the engine

until the tank is empty and the engine

stops.

• If you do not want to remove gasoline

a fuel stabilizer (such as Sears

Craftsman fuel stabilizer No. 33500)

may be added to any gasoline left in

the tank to minimize gum deposits

and acids. If the tank is almost empty,

mix stabilizer with fresh gasoline in a

separate container and add some to the

tank. Always follow instructions on

stabilizer container. Then run engine at

least 10 minutes after stabilizer is added

to allow mixture to reach carburetor.

Store edger/trimmer in a safe place. See

IMPORTANT under STORAGE (EN-

GINE).

•Store the edger/trimmer in the wheels-

down, operating position. If the edger/

trimmer is stored in any other position, oil

from the crankcase could enter the

cylinder, causing a service problem.

You can keep your engine in good operating

condition during storage by:

•Changing oil.

• Lubricating the piston/cylinder area.

This can be done by first removing the

spark plug and squirting clean engine

oil into the spark plug hole. Then cover

the spark plug hole with a rag to absorb

oil spray. Next, rotate the engine by

pulling the starter two or three times.

Finally, reinstall spark plug and attach

spark plug wire.

TROUBLE CAUSE CORRECTION

Difficult starting Stale fuel Drain fuel tank. Fill with fresh

fuel

or Defective spark plug Clean and re-gap spark plug

Clogged fuel line Replace fuel filter

Engine runs

erratic Blocked fuel line or empty fuel tank Clean fuel line; check gas tank

Carburetor out of adjustment Have carburetor adjusted

Fouled spark plug Clean and adjust gap

Clogged air cleaner Tap clean or replace air cleaner

Jammed due to foreign object Clear obstruction

Cutting blade

fails to turn Loose blade Tighten blade retaining nut

Defective belt Replace V-belt

Defective quill bearings Replace the bearings

Blade fails to cut Damaged or worn blade Replace blade

properly

Excessive Loose parts Stop engine immediately; tighte_

vibration all bolts. If vibration continues,

take the unit into the nearest

Sears Service Center

CRAFTSMAN 9" - 3.8 H.P. EDGER/TRIMMER 536.797480

ENGINE ASSEMBLY

Note: Nways use original equipment €

parts. Use of sewice/replacement

partsothar than odginal parts may void

your warranty.

REF. !

NO. PART NO.

.10 ENGINE

48148

314781

181608

120638

456O2

32668

313011

51600

PART NAME

3.8 hp. 143.963509

(See Enginepages)

Screw, 3/8-16 x 1.00

Pulley,Half V3L

Screw, 5/16-24x 1.00 HHC

Washer, SPTL_

.328x.60x.09

Washer, Flat .333x.87x.119

Belt, V 4L 32.60LG

:Screw and Washer Ass]/

Guide, Belt

All unnumbered items ere

interchangeable with opposite

side

REF.

NO. PART NO. PART NAME

40 331281-848

41 181624

42 315095

43 173030

44 308237

45 315095

80 323534-848

81 308154-848

339908

Cover, Engine Pulley

Screw, 5/16-24x3.00 HHC

Spacer, Sleeve

.335x.431x2.50

Screw, 5/16-24x3.75

Spacer, .3221D.562 OD

Spacer, Sleeve

.335x.431x2,50

Frame, Assy Edger

Strap

Owner'sManual

323095D

CRAFTSMAN 9" -3.8 H.P. EDGER/TRIMMER 536.797480

BLADE GUARD ASSEMBLY O

REF.

NO. PART NO. PART NAME

1 331076-848 Blade Guard

2 57072 Cart. Bolt 5/16-18x.63

3 120393 Flatwasher .344x.69x.065

4 1498 Nut, 5/16-18 Reghexctrlk

5 326748-848 Guide, BertFront

332247D

PART NAME

!REF.

NO. PART NO.

6 995346

8 53405-848

9 411666

10 _5Ol

Screw, 1/4-20x.50 Tap

Cover, Quil| Pultey

Screw, 10-24x.50 Tap

Flatwasher .203x.56x.040

FRONT WHEEL BRACKET ASSEMBLY

REF

NO. PART NO. PART NAME

150 339299-848

151 331422

152 338614

153 325892

154 331421

155 332002

156 331419

157 20252

158 22265

159 45905

160 51333

161 331394-84_

162 I 120393

163 339388

164 1498

Arm, FrontWheel

Rod, Front MountCurb Hopper

Pushnut,Washer

Washer, Plastic

Spacer, HeightAdjust

Pin, Spring .187Diax1.50Lg

Lever, HeightAdjust

Knob, Rectangle

Flatwasher .515x 1.38x.119PL

Nut, 3/8-16 HwdfllkMack

Screw. 5/16-18x.63

Plate, HeightAdjustQuad

Flatwasher, .344x.69x.065

Knob,W/5/16-18 Stud

Nut, 5/16-18 Reghexctr_

CRAFTSMAN 9" - 3.8 H.P. EDGER/TRIMMER 536.797480

CURB HOPPER ASSEMBLY

REF.

NO. PART NO.

L17o 6842

171 18oo77

172 1498

18o 126380

181 8082

182 45222

183 12o393

184 13527

185 t20376

186 310896

PART NAME

Bracket, Curb Hop Mnt

Screw, 5/16- t8x.75

Nut, 5/16-18 Reghexctrlk

Cart. Bolt,5/16-18x2.00

Clevis

Spacer, Slev .356x.63x1.01

Flatwasher .344x.69x.065

Knob, T

Nut, 5/16-18 Reghex

Rod, Wheel Support

323179D

BLADE ASSEMBLY

REF

NO.

3OO

301

302

305

310

311

312

320

PART NO.

120396

338656-848

308254

1499

308243

411666

1501

51603

PART NAME

Flatwasher, .53lx 1.06x.095

QuillSuppt.Assy.

ShoulderBolt3/8-16

Nut, 3/8-16 Reghexctdk

Deflector,Rubber

Screw, 10-16x.50 Tap

Flatwasher, .203x.56x.040

CompressionStodng

REF.

NO.

321

322

323

325

329

330

331

323129C

PART NAMEPART NO.

338070

308466

308155

1498

22265

334056-853

46023

Quill Assembly, LrgSuppt.

Index Lever

TorsionSpring

Nut, 5/16-18 Reghexctrlk

Flatwasher, .515x1.38x.119

Blade Edger

Nut, 1/-20 Wdfl

CRAFTSMAN 9" -:_.8 H.P. EDGER/TRIMMER 536.797480

HANDLE ASSEMBLY

REF.

'NO.

PART NO.

51333

1498

56199

36368

332232-853

580292-853

1498

PART NAME

Screw, 5/16-18x.63

Nut, 5/16-18 Reghexctrlk

CarT.Bolt, 5/16-18xl .63

Hair Pin .072Diax1.13Lg

Lower Handle

ControlRod

Nut, 5/16-18 Rehexctrlk

_2_7C

UPPER HANDLE ASSEMBLY

°7

REF.

NO. PART NO.

725 332239

731 310052-85_

732 180024

735 1502

737 310050-85_

738 180081

739 25644

740 1498

741 307017

743 !310053

745 1499

PART NAME

Upper Handle & Foam

Plate Selector

Screw, 1/4-2Oxl .25

Nut, 1/4-20 Reghexctrlk

Handle, Depth Adjust

Screw, 5/16-18xl.25

Spring

Nut, 5/16-18 Reghexctrlk

Grip, Hand

Stud

Nut, 3/8-16 Reghexctdk

323136E

CRAFTSMAN 9" - 3.8 H.P. EDGER 536.797480

TIRE ASSEMBLY

REF.

NO. PART NO.

650 336556

651 55273

653 190628

654 120393

655 51887

667 310716

668 1310715

669 45171

670 2968

680 121222

PART NAME

Tire & Rim w/Brg8xl .75

Nut, 5/16-18 Wdflik

Screw, 5/16-18x4.50

Flatwasher, .344x.69x.065

Spacer, Slev .328x.495x1.39

Shoulder Bolt,3/8-16

Spacer, Slev .390x.70x.70

Nut, 3/6-16 Whiz-lock

Flatwasher.504x.75x,059

Cotter Pin .090Diax.75Lg

332244B

HANDLE PANEL ASSEMBLY

REF,

NO. / PART NO. PART NAME

760 I 331697-853 Handle Panel Assembly

332228B

CRAFTSMAN 9" - 3.8 H.P. EDGER 536397480

DECALS

REF.

NO. PART NO,

820 339122

821 69711

822

823 338983

824 402881

825 312548

826 402871

829 338979

PART NAME

Decal, RecoilCover

Decal, Informalion Danger

Reference Only

Decal, 3.8 Sears Edger

Decal, Angle Indicator

Decal, Quadrant Selector

Decal, Blade Guard

Decal, Panel Sears

332240C

CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER: 143.963509

REF.

NO.

25A

26A

100

102

103

110

119

120

125

126

130

130A

PART NO.

36591

26727

28277

31334

31336

31335

350548

34593

3260O

36552

35883

350802

550926

35902

34614

34515

34516

32538B

32548B

32549B

28986

28987

28988

20381

3O963B

32610A

27241

28594

33149A

29745

650128

27677A

34683A

27642

26208

30574A

3059OA

30591

6O588A

650488

610961

611195

850815

650816

34443A

650872

651007

35182 o"

36437

36438

36471

36472

29314B

29315C

650694

6021A

PART NAME

Cylinder

(incL2, 20, 72, & 125)

Dowel

Washer

GovernorRod

GovernorLever

GovernorLeverClamp

Screw, 8-32 x 5/16"

ExtensionSpring

Oil Seal

Blower HsingBaffle

(incl. 262)

BaffleExtension

Scrow, 1/4-20 x 5/8"

Screw,8-32 x 21164"

Crankshaft

Piston,Pin& Ring Set

Piston,Pin& RingSet

(0.010 OS)

Piston,Pin& RingSet

(0.020OS)

Piston& Ring Assy

(Std) (Inc143)

Piston& Pin Assy

(.010"OS) Inc143

PisTon& Pin Assy

(.02O"OS (inc143)

RingSet (Std)

RingSet (.010" OS)

RingSet (.O2O"OS)

PistonPin Retain Ring

ConnectingRod Assy

(inc146 & 49)

ConnectingRod Boll

Valve Lifter

Oil Dipper

Camshaft (BCR)

BlowerHousingExt.

Screw, 10-24 x 1/2-

CylinderCover Gasket

CylinderCover (Inc175

Inru 83)

Oil Drain Plug

Oil Seal

GovernorShaft

Washer

GovernorGear Assy

(Inc181)

GovernorSpool

Screw 1/4-20 x 1-1/4"

FlywheelKey

Flywheel

BellavilleWasher

Rywheel Nut

SoLidState Ignition

Solid State MflngStud

Screw. TorxT-15, 10-24

x 15/16"

GroundWire

CylinderHead Gasket

CylinderHead (inc1130)

ExhaustValve (Std)

(Inc1.151)

ExhaustValve (1/32" OS)

(Inc1151)

Intake Valve (Std)

(inc1151}

Intake Valve (1/32" OS)

(inc1151)

Screw 5/16-18 x 2"

Screw 5/16-18 x 1-112"

REF.

NO. PART NO.

650708

33636

31672

31673

27234A

27666

31410

34146

35350

3O2OO

29752

3O593

6201

26756

36703

31341

36677

31342

650549

610973

650139

30322

32410

650451

26754A

650932

34338

35797

35066

35O65

35585

650737

36493

650988

36487A

650926

29774

2646O

650665

35591

35335

35554

35499

35539

35556

34080

28212

35926

650751

32664

36261

35703

36695

632589

590732

36439

36O85

650760

PART NAME

Washer

ResistorSpark Plug

(CJ8)

Valve Spring

Valve SpringCap

Valve Cover Gasket

BreatherBody

BreatherElement

Valve Cover

BreatherTube

Screw 10-24 x 9116"

Nut & Lock Washer

1/4.28

Retainer Clip

Screw 114-28x 7/8"

Carburetorto intake

Pipe Gasket

Intake Pipe

(Ind 182, 184,224)

GovernorLink

ControlBracket(Incl.

203 thru 209A)

CompressionSpring

Screw 5-40 x 7/16"

TerminaJ

Screw 8-32 x 1/2"

Locknut,8-32

ControlKnob

Screw 114-20x 1"

Intake Pipe Gasket

Screw 10-32 x 4g/64"

AirCleaner Gasket

AirCleaner Collar

AirCleaner Filter

Air Cleaner Cover

BlowerHousing

Screw 1/4-20 x 1,2"

Muffler (Inc1277)

Screw 114-20x 2-5/16"

StarterCup

Screw 8-32 x 21/64"

Fuel Line

Fuel LineClamp

Screw 114-15K7/8'

Fuel Tank

(Inc1292 & 301)

Fuel Cap

Oil Fill Tube

"O" Ring

FillTube Clip

Dipstick

Spacer

Fuel Tank Bracket

Screw 1/4-20 x7/16"

BaffleHeat

LubricationDecal

ControlDecal

StarterDecal

Carburetor(Inc1184)

RewindStarter

Gasket Set

SparkArrestorKit (ind

417)(opt)

Screw,8-32x3/8" (opt)

s enginecouldhavebeenbuiltwith590738

slader.Referto the designol the ropepulley

strengthdbsforpartidentification.Individualstarte

ipartsdonotinterchange'

CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER: 143.963509

Carburetor No,632589

® j _- /I

'--" °

REF. PART

NO. NO.

632589

1• 631615

2 631767

4 631184

5 631183

6 632590

6 650506

'632164

25 631867

27 631024

28 632019

29 631028

30 631021

PART NAME

Carburetor

(_l_d. 184 of EngineParts List

rottle Shaft &LeverAss'y.

Throttle ReturnSpring

Dust Seal Washer

DustSeal (Throttle)

ThrotterShutter

Shutter Screw

Fuel Fitting

Float Bowl

FloatShaft

Float

Float Bowl"O" Ring

inlet Needle, Seat, Clip

(in¢l31)

REF. PART

NO. N° .

31 631022

35 36045

35A 632647

40 632591

41 630740

42 630739

43 630738

44 27110

46 631027

60 632592

PART NAME

SpringCip

Primer Bulb/RetainerRing

Primer Bulb Filter

Main Adj. Screw Ass]_

HighSpeed Mixture_Screw

"O" Ring

High Speed MixtureScrew

Washer

High Speed MixtureScrew

Tension Spring

BowlNut Washer

WelchPlugAlmosphericVenl

RepairKi|

CRAFTSMAN 4-CYCLE EN(_INE MODEL

Starter No. 590732 REF_

NO.

1;2 3

Starter No. 590738

lUMBER: 143.963509

PART

NO. PART NAME

590372 Rewind Starter

590599,_ Spring Pin (Incl.4)

590600 Washer

590696 Retainer

590601 Washer

590697 Brake Spring

590698 Starter Dog

590699 Do_ Spring

590700 _ugey & Rewind Sprg Assy

590695 Starter HousingAssy

(40" grommet)

590535 Starter Rope

590701 Starter Handle

• ," t,___i.._ r

)k ,,.. s"

.f.-

m = 7

REF. PART

NO, NO. PART NAME

590738 Rewind Starter

3 590740 Retainer

6 590616 Starter Dog

7590617 DOgSpring

5 590618h Pulley&RewindSpring Ass_

11 590687A Starter HousingAssy

12 590535 Starter Rope

13 590701 Starter Handle

14 590741 LockingTab

For t_e repair or replacement parts you

need delivered directly to your home

Call 7 am-7 pm, 7 days a week

1-800-366-PART

(1-800-366-7278)

Para ordenar piezas con entrega

a domicilio -1-800-659-7084

For in-house major brand repair service

Call 24 hours a day, 7 days a week

1-800-4-REPAIR

(1-800-473-7247)

Para.pedir servicio de reparacion a

domicilio -1-800-676-5811

For the location of a Sears Parts and

Repair Cdnter in your area

Call 24 hours a day, 7 days a week

1-800-488-1222 i1[][]ll

For information on purchasing a Sears

Maintenance Agreement or to inquire

about an existing Agreement

Call 9 am -5pm, Monday-Saturday

1-800-827-6655

When requesting service or ordering

parts, always provide the following

information:

•_roduct Type •Part Number

•Model Number • Part Description

8!/ 8

Am_ca'sR_irSpedalists Printed in U.S.A.

Craftsman 536797480 User Manual 3.8 HP 9 EDGER/TRIMMER Manuals And Guides L9050211

CRAFTSMAN Edger Manual L9050211 CRAFTSMAN Edger Owner's Manual, CRAFTSMAN Edger installation guides

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