Craftsman 917.388290 User Manual

Owner's Manual

CRAFTS[MAN+

55 HORSEPOWER
21" REAR DISCHARGE

ROTARY LAWN MOWER

Model No

917.388290

• Safety

• Assembly

• Operation

• Maintenance

• EspaSol

• Repair Parts

CAUTION:

Read and follow all

Safety Rules and Instructions
before operating this equipment

Sears, Roebuck_and Co Hoffman Estates IL 60179

Visit our Craftsman ,{website: www.sears.com/craftsman

Warranty 2 Product Specifications 10

Safety Rules 2 Service and Adjustments 12

Assembly 4 Storage 13

Operation 6 Troubleshooting 15
Maintenance Schedule 9 Repair Parts 32
Maintenance 9 Parts Ordering Back Cover

LIMITED TWO YEAR WARRANTY ON CRAFTSMAN POWER MOWER
For two years from date of purchase, when this Craftsman Lawn Mower is maintained,
lubricated, and tuned up according to the operating and maintenance instructions in

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

ship.
If this Craftsman Lawn Mower is used for commercial or rental purposes, this warranty

applies for only 90 days from the date of purchase.

This Warranty does not cover:

• Expendable items which become worn during normal use, such as rotary mower
blades, blade adapters, belts, air cleaners and spark plug.

• Repairs necessary because of operator abuse or negligence, including bent
crankshafts and the failure to maintain the equipment according to the instructions

contained in the owner's manual.

Warranty service is available by returning the Craftsman power mower to the nearest

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

vary from state to state.
SEARS, ROEBUCK AND CO., D/817 WA, HOFFMAN ESTATES, ILLINOIS 60179

Safety standards require operator
presence control to minimize the risk of
injury. Y_ur unit is equipped with cuch
controls, do not attempt to defeat the
function of the operator presence controls

under any circumstances.

TRAINING:

• Read this operator's manual carefully.
Become familiar with the controls and

know how to operate your mower
properly. Learn how to quickly stop

mower.

• Do not allow children to use your
mower. Never allow adults to use

mower without proper instructions.

• Keep the area of operation clear of all
persogs, especially small children and

pets.

• Use mower only as the manufacturer
intended and as described in this

manu,_l.

• Do not operate mower if it has been
dropped or damaged in any manner.

Always have damage repaired before
using your mower.

• Do not use accessory attachments that
are not recommended by the manufac-

turer. Use of such attachments may be

hazardous.

• The blade turns when the engine is

running.

PREPARATION:

• Always thoroughly check the area to be

mowed and clear it of all stones, sticks,
wires, bones, and other foreign objects.
These objects will be thrown by the

blade and can cause severe injury.

• Always wear safety glasses or eye
shields when starting and while using

your mower.

Dress properly. Do not operate mower

when barefoot or wearing open

2

sandals. Wear only solid shoes with
good traction when mowing.

• Check fuel tank before starting engine.
Do not fill gas tank indoors, when the
engine is running or when the engine is

hot. Allow the engine to cool for several
minutes before filling the gas tank.
Clean off any spilled gasoline before
starting the engine.

• Always make wheel height adjustments
before starting your mower. Never

attempt to do this while the engine is
running.

• Mow only in daylight or good artificial
light.

OPERATION:

• Keep your eyes and mind on your
mower and the area being cut. Do not

let other interests distract you.

• Do not mow wet or slippery grass.
Never run while operating your mower.

Always be sure of your footing - keep a
firm hold on the handles and walk.

• Do not put hands or feet near or under
rotating parts. Keep clear of the

discharge opening at all times.

• Always stop the engine whenever you
leave or are not using your mower, or

before crossing driveways, walks,
roads, and any gravel-covered areas.

• Never direct discharge of material
toward bystanders nor allow anyone
near the mower while you are operating

it.

• Before cleaning, inspecting, or repair-
ing your mower, stop the engine and
make absolutely sure the blade and all
moving parts have stopped. Then

disconnect the spark plug wire and
keep it away from the spark plug to

prevent accidental starting.

• Do not continue to run your mower if
you hit a foreign object. Follow the

procedure outlined above, then repair
any damage before restarting and
operating your mower.

• Do not change the governor settings or
overspeed the engine. Engine damage
or personal injury may result.

• Do not operate your mower if it vibrates
abnormally. Excessive vibration is an

indication of damage; stop the engine,
safely check for the cause of vibration

and repair as required.

• Do not run the engine indoors. Exhaust
fumes are dangerous.

• Never cut grass by pulling the mower

towards you. Mow across the face of
slopes, never up and down or you

might lose your footing. Do not mow
excessively steep slopes. Use caution
when operating the mower on uneven

terrain or when changing directions -

maintain good footing.

• Never operate your mower without

proper guards, plates, grass catcher or

other safety devices in place.

MAINTENANCE AND STORAGE:

• Check the blade and the engine
mounting bolts often to be sure they are

tightened propedy.

• Check all bolts, nuts and screws at

frequent intervals for proper tightness to

be sure mower is in safe working
condition.

• Keep all safety devices in place and

working.

• To reduce fire hazard, keep the engine

free of grass, leaves or excessive

grease and oil.

• Check grass catcher often for deteriora-
tion and wear and replace worn bags.

Use only replacement bags that are
recommended by and comply with

specifications of the manufacturer of
your mower.

• Always keep a sharp blade on your

mower.

• Allow engine to cool before storing in
any enclosure.

• Never store mower with fuel in the tank

inside a building where fumes may
reach an open flame or an ignition

source such as a hot water heater,
space heater, clothes dryer, etc.

Look for this symbol to point out important

safety precautions. It means CAUTION!!!

BECOME ALERT!!! YOUR SAFETY IS
INVOLVED.

CAUTION: Always disconnect spark plug
wire and place wire where it cannot

contact spark plug in order to prevent
accidental starting when setting up,
transporting, adjusting or making repairs.

WARNING: The engine exhaust from this

product contains chemicals known to the
State of California to cause cancer, birth
defects, or other reproductive harm.

3

These accessories were available when this
lawn mower was produced. They are not

shipped with your mower. They are also
available at most Sears retail outlets and

LAWN MOWER PERFORMANCE

CLIPPING DEFLECTOR

FOR REAR DISCHARGE LAWN MOWERS

service centers. Most Sears stores can also

order repair parts for you, when you provide
the model number of your lawn mower. Some

ofthese accessodes may not apply to your

lawn mower.

MULCHER KITS

STABILIZER

GRASS CATCHERS

FOR

REAR DISCHARGE

LAWN MOWERS

LAWN MOWER MAINTENANCE

MUFFLERS AIR FILTERS SPARK PLUGS

BELTS BLADES BLADE ADAPTERS WHEELS ENGINE OIL

Read these instructions and this manual in

its entirety before you attempt to assemble
or operate your new lawn mower.

IMPORTANT: This lawn mower is shipped
WITHOUT OIL OR GASOLINE in the

engine.
Your new lawn mower has been as-
sembled at the factory with the exception of
those parts left unassembled for shipping

purposes. To ensure safe and proper
operation of your lawn mower, all parts and
hardware you assemble must be tightened
securely. Use the correct tools as neces-

sary to ensure proper tightness. All parts
such as nuts, washers, bolts, etc., neces-

sary to complete the assembly have been
placed in the parts bag.

_l GRASS CATCHERS

FOR

LAWN MOWERS

SIDE DISCHARGE

GAS CANS

TO REMOVE LAWN MOWER FROM

CARTON

• Remove loose parts included with

mower.

• Cut down two end corners of carton and
lay end panel down flat.

• Remove all packing materials except
padding between upper and lower
handle and padding holding operator

presence control bar to upper handle.

• Roll lawn mower out of carton and check
carton thoroughly for additional loose

parts.

HOWTO SET UP YOUR LAWN

MOWER

TO UNFOLD HANDLE

IMPORTANT: Unfold handle carefully so

as not to pinch or damage control cables.

• Raise lower handle section to operating

position and squeeze the bottom ends

4

of lower handle towards each other

until the pin in handle can be inserted
into one of the three height adjustment

holes.

• Remove protective padding, raise
upper handle section into place on
lower handle and tighten both handle

knobs.

• Remove any packing material from
around control bar.

• Your handles may be adjusted for your
mowing comfort. Refer to Service and
Adjustments section of this manual.

TO INSTALL A'I-rACHMENTS
Your lawn mower was shipped ready to

be used as a mulcher.

Operator
presence

contml bar

handle

Lift up

Lower
handle

Handle
pin

Mowing
position

3-position
Handle

adjustment
bracket

J

5

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

MOWER. Compare the illustrations with your lawn mower to familiarize yourself with the

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

These symbols may appear on your lawn mower or in literature supplied with the

product. Learn and understand their meaning.

CAUTION ENGINE ENGINE FAST SLOW CHOKE FUEL OIL DANGER, KEEP HANDS

DR WARNING ON OFF AND FEET AWAY

Operator presence control
bar

Engine zone control cable

Grass

cap

Engine oil cap

with dipstick

Lawn mower housing

IMPORTANT: This lawn mower is shipped

WITHOUT OIL OR GASOLINE in the

engine.

Wheel adjuster

(on each wheel)

MEETS CPSC SAFETY REQUIREMENTS
Sears rotary walk-behind power lawn mowers conform to the safety standards of the American

National Standards Institute and the U.S. Consumer Product Safety Commission. The blade
turns when the engine is running.

Operator Presence Control Bar- must be
held down to the handle to start the engine.

Release to stop the engine.

Primer - pumps additional fuel from the
carburetor to the cylinder for use when
starting a cold engine.

Starter Handle - used for starting the engine.

6

The operation of any lawn mower can result

in foreign objects thrown into the eyes, whm_,h

can result in severe eye damage. Always

wear safety glasses or eye shields while

operating your lawn mower or performing any
adjustments or repairs. We recommend a
wide vision safety mask over spectacles or

standard safety glasses.

HOW TO USE YOUR LAWN MOWER
ENGINESPEEDCONTROL

The engine speed was set at the factory for

optimum performance. Speed is not adjust-
able.

ENGINE ZONE CONTROL

CAUTION: Federal regulations require an
engine control to be installed on this lawn

mower in order to minimize the risk of blade
contact injury. Do not under any circum-
stances attempt to defeat the function of the

operator control. The blade turns when the
engine is running.

• Your lawn mower is equipped with an
operator presence control bar which

requires the operator to be positioned
behind the lawn mower handle to start and

operate the lawn mower.

TO ADJUST CU'I-rlNG HEIGHT

• Raise wheels for low cut and lower wheels

for high cut.

• Adjust cutting height to suit your require-
ments. Medium position is best for most

lawns.

• To change cutting height, squeeze adjuster
lever toward wheel. Move wheel up or

down to suit your requirements. Be sure all
wheels are in the same setting.

NOTE: Adjuster is properly positioned when

plate tab inserts into hole in lever. Also, 9-
position adjusters (if so equipped) allow lever

to be positioned between the plate tabs.
Lower Wheels for High Cut

Plate Tab

Lever

Raise Wheels for Low Cut
TOATTACH GRASS CATCHER

• Lift.the rear door of the lawn mower and

place the grass catcher frame side hooks
onto the door pivot pins.

• The grass catcher is secured to the lawn
mower housing when the rear door is

lowered onto the grass catcher frame.

CAUTION: Do not run your lawn mower
without dipping deflector or approved grass

catcher in place. Never attempt to operate the
lawn mower with the rear door removed or

propped open.

il, ." _: "

Pivot pros _'_'\ "--

TO EMPTY'GRASS CATCHER

• Lift up on grass catcher using the frame

handle.

• Remove grass catcher with clippings from

under lawn mower handle.

• Empty clippings from bag using both frame

handle and beg handle.

NOTE: Do not drag the bag when emptyinq;
itwill cause unnecessary wear.

Bag /
handle Grass

catcher frame
handle

BEFORE STARTING ENGINE
OIL

Your lawn mower is shipped without oil in the
engine.

• Be sure mower is level and area around oil
fill is dean.

• Remove engine oil cap and fill to the full
line on the dipstick.

NOTE: Allow oil to settle down into
engine for accurate dipstick reading.

• Engine holds 20 ozs. of oil. For type and

grade of oil to use, see "ENGINE" in
Maintenance section of this manual.

• Pour oil slowly. Do not over fill

• Check oil level before each use. Add oil if

needed. Fillto full line on dipstick.

• To read proper level, tighten engine oil cap

each time.

• Reinstall engine oil cap and tighten.

• Change the oil after every 25 hours of

operation or each season. You may need

to change the oil more often under dusty,

dirty conditions.

GAS

• Fill fuel tank. Use fresh, dean, regular
unleaded gasoline witll a minimum of 87

7 octane. Do not mix oil with gasoline.

Purchasefuel in quantities that can be

used within 30 days to assure fuel

freshness.

WARNING: Experience indicates that alcohol

blended fuels (called gasohol 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 avoid engine problems, the fuel system

should be emptied before storage of 30 days

or longer. Drain the fuel tank, start the engine

and let it run until fuel lines and carburetor are

empty. Use fresh fuel next season. See

Storage Instructions for additional information.

Never use engine or carburetor cleaner

products in fuel tank or permanent damage

may occur.

Engine oil
cap

TO START ENGINE

• To start a cold engine, push primer five (5)
times before trying to start. Use a firm push.
This step is not usually necessary when
starting an engine which has already run

for a few minutes.
Hold operator presence control bar down

to the handle and pull starter handle
quickly. Do not allow starter rope to snap

back.

• To stop engine, release operator presence
control bar.

NOTE: In cooler weather it may be necessary

to repeat priming steps. In warmer weather

over priming may cause flooding and engine

will not start. If you do flood engine, wait a few

minutes before attempting to start and do not
repeat priming steps.

MOWlNGTIPS

• Under certain conditions, such as very tall
grass, it may be necessary to raise the
height of cut to reduce pushing effort and to
keep from overloading the engine and

leaving dumps of grass clippings. It may
also be necessary to reduce ground speed

and/or run the lawn mower over the area a
second time.

• For extremely heavy cutting, reduce the
width of cut by overlapping previously cut

path and mow slowly.

• For better grass bagging and most cutting
conditions, the engine speed should be set

in the fast position.

cap

• Pores in cloth grass catchers can become
filled with dirt and dust with use and

catchers will collect less grass. To prevent
this, regularly hose catcher off withwater

and let dry before using.

• Keep top of engine around starter clear

and dean of grass clippings and chaff.

This will help engine air flew and extend

engine life.

MULCHING MOWING TIPS
IMPORTANT: For best performance, keep

mower housing free of built-up grass and

trash. Clean UNDERSIDE OF MOWER

HOUSING after each use. See "Cleaning" in
MAINTENANCE section of this manual.

• The special mulching blade will recut the
grass dippings many times and reduce

them in size so that as they fall onto the
lawn they will disperse into the grass and
not be noticed. Also, the mulched grass will
biodegrade quickly to provide nutrients for
the lawn. Always mulch with your highest
engine (blade) speed as this will provide

the best recutting action of the blades.

• Avoid cutting your lawn when it iswet. Wet

grass tends to form dumps and interferes
with the mulching action. The best time to
mow your lawn is the early aftemoon. At
this time the grass has dried and the newly

cut area will not be exposed to the direct
sun.

• For best results, adjust the lawn mower
cutting height so that the lawn mower cuts
off only the top one-third of the grass
blades. If the lawn is overgrown itwill be

necessary to raise the height of cut to
reduce pushing effort and to keep from
overloading the engine and leaving
dumps of mulched grass. For extremely
heavy mulching, reduce your width of cut,
mow slowly and raise the rear of the lawn

mower one wheel adjuster setting higher
than the front.

• Certain types of grass and grass conditions
may require that an area be mulched a

second time to completely hide the
clippings. When doing a second cut, mow
across or perpendicular to the first cut path.

• Change your cutting pattern from week to

week. Mow north to south one week then

change to east to west the next week. This

will help prevent matting and graining of_

the lawn.

Max 1/3

8

AsYouCOMPLETE

.EGU ,.SE.V,C ySERV'CEOATES

Check for Loose Fasteners I_ ll/

Clean/Inspect Grass Catcher

M Clean Lawn Mower

O Clean Under Drive Cover(Power-PropelledMowers)

Check ddve belt/pulleys

CheckJSharpen/Replace Blade 3

E (P0wer-Pr0pelled Mowers)

Lubrication Chart V'

Clean Battery/Recharge
(Electric Start Mowers) I_ _4

E Check Engine Oil Level !/

N Change Engine Oil Ij/1,2

G Clean Air Filter ii/ =

I Inspect Muffler i##

N Clean or Replace Spark Plug

E ReplaceAirFilterPaperCartridge I/2

1 - Change rr_ceonen when operatingundera heavyloadof inh_ghambienttemperatures.

2 - _ mcre often whenoper_ng Ind_dyordusly cond_Jons.
3 - Replace blades rnoreoftenwhen rno_ng in sandysoil.

4 - Charge48 hoursedendof w.

GENERAL RECOMMENDATIONS
The warranty on this lawn mower does not

cover items that have been subjected to
operator abuse or negligence. To receive full
value from the warranty, operator must

maintain mower as instructed in this manual.
Some adjustments will need to be made
periodically to properly maintain your unit.

All adjustments inthe Service and
Adjustments section of this manual should be

checked at least once each season.

• Once a year, replace the spark plug,
replace air filter element and check blade

for wear. A new spark plug and dean/new
air filterelement assures proper air-fuel
mixture and helps your engine run better
and last longer.

• Follow the maintenance schedule in this

manual.

BEFORE EACH USE

• Check engine oil level.

• Check for loose fasteners.

LUBRICATION

Keep unit well lubricated (See "LUBRICATION
CHART'S.

LUBRICATION CHART
Wheel
adjusters

Brake spring

_gineoil

(_) Rear

door (_) Handle bracket

hinge mountingpin

(_ SPRAY LUBRICANT

(_) SAE 30 MOTOR OIL. REFER TO

ENGINE - MAINTENANCE SECTION.

IMPORTANT: Do not oil or grease plastic

wheel bearings. Viscous lubncants will attract

dust and dirt that will shorten the life of the self
lubricating bearings. If you feel _ey must be

,lubricated, use only a dry, powdered graphite

type lubricant sparingly.

9

PRODUCT SPECIFICATIONS

MODEL NUMBER 917.388290

SERIAL NUMBER
DATE OF PURCHASE

HORSEPOWER: 5.5

GASOLINE CAPACITY/TYPE: 1.5 QUARTS

UNLEADED REGULAR

OIL TYPE (API-SF/SG/SH): SAE 30 (ABOVE 32°F)

SAE 5W-30 (BELOW 32°F)

OIL CAPACITY: 20 OZS.

SPARK PLUG(GAP: .030") CHAMPION RJ19LM OR J19LM

VALVE CLEARANCE: INTAKE: .004 - .008

EXHAUST: .004 - .008

SOLID STATE IGNITION

AIR GAP: .0125 IN.

BLADE BOLT TORQUE: 35-40 FT. LBS.

The model and serial numbers will be found on a decal attached to the rear of the
lawn mower housing.Record both serial number and date of purchase in space

provided above.

LAWN MOWER

Always observe safety rules when performing

any maintenance.

TIRES

• Keep tires free of gasoline, oil, or insect
control chemicals which can harm rubber.

• Avoid stumps, stones, deep ruts, sharp
objects and other hazards that may cause

tire damaqe.

BLADE CARE

For best results, mower blade must be
kept sharp. Replace bent or damaged

blades.
TO REMOVE BLADE

• Disconnect spark plug wire from spark
plug and place wire where it cannot

come in contact with spark plug.

• Turn lawn mower on its side. Make
sure air filter and carburetor are up.

• Use a wood block between blade and
mower housing to prevent blade from
turning when removing blade bolt.

• Protect your hands with gloves and/or
wrap blade with heavy cloth.

• Remove blade bolt by turning counter-
clockwise.

Remove blade and attaching hardware

(bolt, lock washer and hardened

washer).

NOTE: Remove the blade adapter and
check the key inside hub of blade adapter.
The key must be in good condition to work

properly. Replace adapter if damaged.
TO REPLACE BLADE

• Position the _olade adapter on the
engine crankshaft. Be sure key in

adapter and crankshaft keyway are
aligned.

• Position blade on the blade adapter
aligning the two (2) holes in the blade

with the raised lugs on the adapter.

• Be sure the trailing edge of blade

(opposite sharp edge) is up toward the

engine.

• Install the blade bolt with the lock
washer and hardened washer into

blade adapter and crankshaft.

• Use block of wood between blade and

lawn mower=housing and tighten the
blade bolt, turning clockwise.

• The recommended tightening torque is

35-40 ft. Ibs."

10

IMPORTANT: Blade bolt is grade 8 heat
treated.

TO SHARPEN BLADE

NOTE: We do not recommend sharpen-

ing blade - but if you do, be sure the blade

is balanced.
Care should be taken to keep the blade

balanced. An unbalanced blade will
cause eventual damage to lawn mower or

engine.

• The blade can be sharpened with a file
or on a grinding wheel. Do not attempt

to sharpen while on the mower.

• To check blade balance, drive a nail
into a beam or wall. Leave about one

inch of the straight nail exposed. Place
center hole of blade over the head of

the nail. If blade is balanced, it should
remain in a horizontal position. If either

end of the blade moves downward,
sharpen the heavy end until the blade

is balanced.

Crank shaft

Blade keyway

Ke

Bolt Crank

Lockwasher Hardened Blade shaft

washer Trailing adapter

edge

GRASS CATCHER

• The grass catcher may be hosed with

water, but must be dry when used.

• Check your grass catcher often for damage

or detedoration. Through normal use it will
wear. If catcher needs replacing, replace

only with a manufacturer approved
replacement catcher. Give the lawn mower

model number when ordedng.

ENGINE
LU BRICATION

Use only high quality detergent oil rated
with API service classification SF, SH or

SG. Select the oil's SAE viscosity grade
according to your expected operating

temperature.

SAE VISCOSITY GRADES

-20"

TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

NOTE: Although multi--viscosity oils
(5W30, 10W30 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.

Change the oil after every 25 hours of

operation or at least once a year if the

lawn mower is not used for 25 hours in

one year.

Check the crankcase oil level before

starting the engine and after each five (5)

hours of continuous use. Tighten oil plug

securely each time you check the oil level.

TO CHANGE ENGINE OIL

NOTE: Before tipping lawn mower to
drain oil, drain fuel tank by running

engine until fuel tank is empty.

• Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.

• Remove engine oil cap; lay aside on a
clean surface.

• Tip lawn mower on its side and drain oil
into a suitable container. Rock lawn

mower back and forth to remove any oil
trapped inside of engine.

• Wipe off any spilled oil on lawn mower
and on side of engine.

• Fill engine with oil. Fill only to the
"FULL" line on the dipstick. DO NOT

OVER FILL.

• Replace engine oil cap.

• Reconnect spark plug wire to spark

plug.

Container

AIR FILTER
Your engine will not run properly and may

be damaged by using a dirty air filter.
Replace the air filter every year, more

often if you mow in very dusty, dirty
conditions. Do not wash air filter.

TO CHANGE AIR FILTER

• Remove the air filter cover by turning
counterclockwise to the stop and pull
away from collar.

• Remove filter from inside of cover.

11

• Clean the inside of the cover and the

collar to remove any dirt accumulation.

• Insert new filter into cover.

• Put air filter cover and filter into collar

aligning the tab with the slot.

• Push in on cover and turn clockwise to
tighten.

Collar

Slot

MUFFLER

Inspect and replace corroded muffler as it

could create afire hazard and/or damage.
SPARK PLUG

Change your spark plug each year to
make your engine start easier and run

better. Set spark plug gap at .030 inch.

Clip

Air filter cover to tighten

Turn
counter--
ctockwise to

remove

clockwise

CLEANING
IMPORTANT: For best performance, keep

mower housing free of built--up grass
and trash. Clean underside of mower

housing after each use.
CAUTION: Disconnect spark plug wire

from spark plug and place wire where it
cannot come in contact with the spark

plug.

• Turn lawn mower on its side. Make sure
air filter and carburetor are up. Clean

the underside of your lawn mower by

scraping to remove build--up of grass

and trash.

• Clean engine often to keep trash from

accumulating. A clogged engine runs

hotter and shortens engine life.

• Keep finished surfaces and wheels free

of all gasoline, oil, etc.

• We DO NOT recommend using a

garden hose to clean lawn mower
unless the electrical system, muffler, air

filter and carburetor are covered to

keep water out. Water in engine can
result in shortened engine life.

CAUTION: Before performing any

service or adjustments:

• Release control bar and stop engine.

• Make sure the blade and all moving
parts have completely stopped.

• Disconnect spark plug wire from spark
plug and place where it cannot come in

contact with plug.

LAWN MOWER

TO ADJUST CUTTING HEIGHT

See "TO ADJUST CUTTING HEIGHT" in
the Operation section of this manual.

REAR DEFLECTOR
The rear deflector, attached between the

rear wheels of your lawn mower, is
provided to minimize the possibility that
objects will be thrown out the rear of the

lawn mower into the operator's mowing
position.

If the rear deflector becomes damaged, it
should be replaced.

TO ADJUST HANDLE

The handle on your lawn mower has
three (3) height positions - adjust to height

that suits you.

• Squeeze the bottom ends of lower
handle towards each other until the pin

in handle can be inserted into one of
the three height adjustment holes.

Handle pin

Low

J

3-position
Handle

adjustment
bracket

12

ENGINE
CARBURETOR

Your carburetor has a non-acljustable fixed
main jet for mixture control. Ifyour engine

does not operate properly due to suspected
carburetor problems, take your lawn mower to

an authorized service center for repair or
adjustment.

IMPORTANT: Never tamperwith 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 AUTHORIZED service center, which
has proper equipment and experience to

make any necessary adjustments.
ENGINE SPEED

Your engine speed has been factory set. Do

not attempt to increase engine speed or it
may result in personal injury. If you believe

that the engine is running toe fast ortoo slow,
take your lawn mower to an authorized

service center for repair and adjustment.

Immediately prepare your lawn mower for
storage at the end of the season or if the unit
will notbe used for 30 days or more.

LAWNMOWER

When lawn mower is to be stored for a period
of time, clean itthoroughly, remove all dirt,

grease, leaves, etc. Store in a clean, dry area.

• Clean entire lawn mower (See "CLEAN-

ING" in the Maintenance section of this

manual).

• Lubricate as shown in the Maintenance

section of this manual.

• Be sure that all nuts, bolts, screws, and pins
are securely fastened. Inspect moving

parts for damage, breakage and wear.

Replace if necessary.

• Touch up all rusted or chipped paint
surfaces; sand lightty before painting.

HANDLE

• You can fold your lawn mower handle
for storage.

• Loosen the two (2) handle knobs on
sides of the upper handle and allow
handle to fold down to the i'ear.

• Squeeze the bottom ends of lower
handle toward each other until pins in
handle clear the brackets and pivot

entire handle assembly forward and
allow it to rest on mower.

• When setting up your handle from the
storage position, the lower handle will

require manually locking into the
mowing position.

IMPORTANT: When folding the handle for
storage or transportation, be sure to fold

the handle as shown or you may damage
the control cables.

Med.

Low

J Handle

pin

3-position

adjustment
I_racket

Operator Presence

Control Bar

Upper
Handle

Fold Forward
For Storage

Mowing

, Position

Lower
Handle

:old

Backward

ENGINE
FUELSYSTEM

IMPORTANT: Itis important to prevent gum
deposits from forming in essential fuel system
parts such as carburetor, fuel tilter, fuel hose,

or tank during storage.

Also, experience indicates that alcohol

blended fueLs (called gasohol or using
ethanol ormethanel) can attract moisture

which leads to separalion end formation of
acids during storage. Acidic gas can damage

the fuel system of an engine while in storage.

• Drain the fuel tank.

• Start the engine and let it run until the fuel
lines and carburetor are empty.

• Never use engine or carburetor cleaner

products in the fuel tank or permanent
damage may occur.

• Use fresh fuel next season.

NOTE: Fuel stabilizer is an acceptable

altemative in minimizing the formation of fuel
gum deposits during storage. Add stabilizer
to gasoline in fuel tank or storage container.

Always follow the mix ratio found on stabilizer
container. Run engine at least 10 minutes

after adding stabilizer to allow the stabilizer to
reach the carburetor. Do not drain the gas
tank and carburetor if using fuel stabilizer.

13

ENGINEOIL
Drain oil (with engine warm) and replace with

clean engine oil (See "ENGINE" in the
Maintenance section of this manual).

CYLINDER

• Remove spark plug.

• Pour one ounce (29 ml) of oil through spark

plug hole into cylinder.

• Pull starter handle slowly a few times to

distribute oil.

• Replace with new spark plug.
OTHER

• Do not store gasoline from one season to

another.

• Replace your gasoline can if your can

TROUBLESHOOTING CHART

PROBLEM CAUSE

starts to rust. Rust and/or dirt in your
gasoline will cause problems.

• Ifpossible, store your unit indoors and
cover it to give protection from dust and dirt.

• Cover your unit with a suitable protective
cover that does not retain moisture. Do not

use plastic. Plastic cannot breathe which
allows condensation to form and will cause

your unitto rust.

IMPORTANT: Never cover mower while

engine and exhaust areas are stillwarm.

CAUTION: Neverstorethe lawnmowerwith
gasolineinthe tank insidea buildingwhere

fumes may reachan open llama orspark.
Allowthe engineto coolbeforestoring in any

enclosure.

CORRECTION

Does not start

Loss of power

1. Dirty air fiiter.

2. Out of fuel.

3. Stale fuel.

4. Waterinfuel.

5. Spark plug wire is

disconnected.

6. Bad spark plug.

7. Loose blade or broken blade

adapter.

8. Control bar in released
position.

9. Control bar defective.

1. Rear of lawn mower housing
or cutting blade dragging
in heavy grass.

2. Cutting too much grass.

3. Dirty air filter.

4. Buildup of grass, leaves,
and trash under mower.

5. Too much oil in engine.

6. - Walking speed too fast.

1. Clean/replace air filter.

2. Fill fuel tank.

3. Drain tank and refill with
fresh dean fuel.

4. Drain fuel tank and

carburetor and refill tank

with fresh gasoline.

5. Connect wire to plug.

6. Replace spark plug.

7. Tighten blade bolt or
replace blade adapter.

8. Depress control bar to

handle.

9. Replace control bar.

1. Set to "Higher Cut"

position.

2. Set to "Higher Cut"
position.

3. ClearYreplace air fiiter.

4. Clean underside of mower

housing.

5. Check oil level.

6. Cut at slower walking
speed.

14

TROUBLESHOOTINGCHART

PROBLEM CAUSE CORRECTION

Poor cut - uneven

Excessive

vibration

Starter rope hard
topull

Graes catcher
not filling (if so

equipped)

1. Wom, bent or loose blade.

2. Wheel heights uneven.

3. Buildup of grass, leaves
and hash under mower.

1. Worn, bent or loose blade.

2. Bent engine crankshaft.

1. Engine flywheel brake is on
when control bar is released

2. Bent engine crankshaft.

3. Blade adapter broken.

4. Blade dragging in grass.

1. Cutting height too low.

2. Lift on blade worn off.

3. Catcher not venting air.

1. Replace blade. Tighten
blade boll

2. Set all wheels at same
height

3. Clean underside of

mower housing.

1. Replace blade.T'_hten

blade belt.

2. Contactan authorized

servicecenter.

1. Depress control bar to

upper handle before
pulling starter rope.

2. Contact an authorized

service center.

3. Replace blade adapter.

4. Move lawn mower to cut
grass or to hard surface
to start engine.

1. Raise cutting height.

2. Replace blade.

3. Clean grass catcher.

Hard to push

1. Grass is too high orwheel
height is too low.

2. Rear of lawn mower
housing or blade dragging

in grass.

3. Grass cetcher too full.

4. Handle height position not

right for you.

1. Raise cuttingheight.

2. Raise rear of lawn mower

housing one (1) setting

higher.

3. Empty grass cetcher.

4. Adjust handle height to

suit.

15

CRAFTSMAN ROTARY LAWN MOWER -- MODEL NO. 917.388290

44 31

u 33

,, J

CRAFTSMAN ROTARY LAWN MOWER-- MODEL NO. 917.388290

KEY
NO.

1
2
3
4

5
6

7

8

9

10

11

12
13
14
15

16
17
18
19

20
21

22
23
24

25
25

PART
NO,

131696

166860X479
161105X479

132001

63601

131959
66426

74780512
166785

164362

168552
750097
850733X004

136376
51793

147286

165946X479
17600406
167132X004
167133X004

165858
168360X004
166875
751153

166236X479
165243X479

KEY PART

DESCRIPTION NO. NO. DESCRIPTION

Control Bar 27 851856 Screw 1/4-20 x 3/8
UpperHandle 28 63124 Nut

LowerHandle 29 160835X007 Wheel AdjustingBracket - Front
RopeGuide 30 19112222 Spacer

Locknut 1/4-20 31 151161 Wheel
HandleBolt 33 87877 SelectorKnob

WireTie 34 167130X004 AxleArm Assembly- LR

Hex Bolt5/16-18 x 3/4 35 57143 Wavewasher
Locknut5/16-18 35 160828 ShoulderBolt 5/16-18

ShoulderBolt 37 151162 Wheel Assembly
Engine Zone ControlCable 38 73990500 Nut

Hex Washer Head Screw #10-24 x 1/2 39 83923 FlangedLocknut
Up-Stop Bracket 40 77400 Hubcap
HandleKnob 41 88652 HingeScraw
HairpinCotter 42 165766 Spdng(LH)

HingeRod 43 165767 Spdng(RH)

Support Bracket 44 165912 DoorBolt

Screw 45 150406 HexHead Thread Rolling Screw 3/8-16 x 1
Axle Arm Assembly - LF 46 85463 DangerDecal

Axle Arm Assembly - RF 47 161551 Adjustment Bolt
Rear Skirt 48 167131X004 Axle Arm Assembly - RR
Selector Spring 52 166872 Housing Assembly (Incl. Ref. #17, 18 & 46)
Rear Door Assembly Kit (Incl. Springs) 53 851084 Hex Head Screw 3/8-24 x 1-3/8 Grd. 8
Locknut 5/16-18 54 850263 Helical Lockwasher

Handle Bracket Assembly (Left) 55 851074 HardenedWasher
Handle Bracket Assembly (Right) 56 165833 21" Blade

57 851514 Bleda Adapter

67 166113 Grass Bag

68 165755 CatcherFrame

70 ...... Engine- (See Breakdown)

Craftsman143.995502

- - 161058 Warning Decal (NotShown)

- - 166881 Owner'sManual

CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.995502

298

,3O0

!

370C

4O0

416

182

130

135

178

120

119

275

38O 2O7

61"-.292

7

126

125

310

172

46

52

238 25O

CRAFTSMAN 4-CYCLE ENGINE

MODEL NUMBER 143.995502

KEY PART
NO, NO. DESCRIPTION

1 37266
2 26727

6 33734
7 36557

12 36775

1ZA 36558
12B 36694

!4 28277
15 30589
16 34839A
17 31335

18 651018

19 36281
20 32600
30 36776
40 40004

40005

41 36070

36071

42 40006

40007
43 20381
45 36777

46 32610A
48 27241

50 36778
52 29914

69 35261
70 34311E

72 36083
75 27897

80 30574A
81 30590A

82 30591
83 30588A

86 650488
89 611004

90 611112
92 650815

93 650816
100 34443B
101 610118
103 651007

110 37047
119 36787
120 36825

125 37288
126 37289

130 6021A
135 35395

150 31672
151 31673

151A 40017

169 36783

Cylinder 172 36784
(Ind. 2,20 & 150) 174 30200

DowelPin 178 29752
BreatherElement

Breather Ass'y. 182 6201
(Incl. 6 & 12A) 184 26756

BreatherTube
Breather Cover &Tube 185 36785
(Ind. 12B) 186 32653

BreatherTube Elbow 189 650839

Washer 191 36559A

Governor Rod (Ind. 14)
Govemor Lever 195 610973

Governor Lever Clamp 207 34336
Screw, Torx "I"-15,8-32 x 216 33086
19/64" 223 650451
Extension Spring 224 36786

Oil Seal 238 650932
Crankshaft 239 34338
Piston, Pin & Ring Set 241 35797
(Std.) 245 35O66
Piston, Pin & Ring Set 250 35065
(.010" OS) 260 36980

Piston& Pin Ass'y. 261 30200

(Std.) (Incl. 43) 262 650831

Piston& Pin Ass'y. 275 36790A

(.010" OS) (Ind. 43) 277 650988

Ring Set (StdJ 285 35000A
Ring Set (.010" OS) 287 650926
PistonPin Retaining Ring 290 29774

Connecting Rod Ass'y. 292 26480

(Incl 46) 298 28763
ConnectingRod Bolt 300 36916

Vatve Lifter

Camshaft(MCR) 301 36246
Oil Pump Ass'y. 305 35647

* MountingFlange Gasket 306 36998

Mounting Flange (Ind. 72 307 35499

thru 83,306) 309 650562

OilDrain Plug 310 35648
OilSeal 313 34080
Governor Shaft 325 37152

Washer 370A 36261

Governor Gear Ass'y. 370C 37199
(Incl. 81) 370K 36695
Governer Spool 380 640174

Screw, 1/4-20 x 1-114" 390 590737
Flywheel Key 400 36792B
Flywheel
BelleviltaWasher 416 36085
FlywheelNut
Solid State ignition 417 650821
Spark Plug Cover

Screw, Torx T-15, 10-24 900
x 15116"

GroundW=re

* Cylinder Head Gasket 900

CylinderHead
Exhaust Valve (Std.)

(Incl. 151)
Intake Valve

(Std.) (Incl. 151)
Screw, 5116-18 x 1o1/2"
Resistor Spark Plug
(RJ19LM)
Valve Spring
Valve Spring Cap

Intake Valve Seal

* Valve Cover Gasket

KEY
NO.

NOTE: This engine could have been builtwith 590694
starter

NOTE: All componentdimensions given in U.S. inches

1inch = 25.4 mm

PART
NO. DESCRIPTION

Valve Cover
Screw, 10-24 x 9/16"

Nut & Lock Washer, 1/4-
28

Screw, 114-28 x 7/8"

• Carburetor To Intake
Pipe Gasket

Intake Pipe
Governor Link

Screw, 1/4-20 x 3/8"
S.E. Brake Bracket (Incl.

195)

Terminal
Throttle Link

R.PM. AdjustingLever
Screw, 114-20x 1"

* Intake Pipe Gasket

Screw, 10-32 x 49/64"

• Air Cleaner Gasket
Air Cleaner Collar
Air Cleaner Filter
Air Cleaner Cover

BlowerHousing
Screw, 10-24 x 9116"
Screw, 114-20x 1/2
Muffler

Screw, 114-20x 2-5/16"
Starter Cup
Screw, 8-32 x 21164"

FuelLine
FuelLineClamp

Screw, 10-32 x 35164"

FuelTank (Incl. 292 &

301)
FuelCap

OilFill Tube

* =O'-Ring

"O'-Ring

Screw, 10-32 x 112"

Dipstick
Spacer
SpringClip

Lubrication Decal
PdmerDecal
Starter Decal

Carburetor (Ind. 184)
RewindStarter

Gasket Set (Incl. Items
Marked *)
Spark Arrestor Kit (Incl.

417)(Optional)
Screw, 10-32 x 112"

(Optional)
ReplacementEngine
750826A, order from 71-

999
Replacement ShortBlock

750796B, order from 71-
999

RPM High 2900 to 3200

35

CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.995502

I

KEY
NO.

16

17

18

2O

2OA

25
27
28

29
3O
31
35
36

3OA

37
40
44
47
48

48A

6O

1

2
4

5

6
7

PART
NO.

640174
631615

631767

631184
831183
64OO7O

65O5O6

631807
651025
630786

64OO18

640053

631867

631024
632019
631028
631021

631022

36045A
640080

632766
632547
640175
27110A
63O746
631027

631027
632760

DESCRIPTION

Cacbum_x:(Ind.1_, _ EnginePartsLie0

_ ShaR & Lever AssemlW
_ P.elumSpdug

* DustSealWasher

"DustSe__)

11va_e Stlugm"

"Shut_r Scm,w

FuaiF_r_,_

Crack Screw/Idle Speed Screw

TensionSlxing
Idle Resb_tar Screw .

Mle Resfficto( Screw Cap
Roar Bo_

* Float Shaft

Float

* Roar Bo._ "O"Ring
* Inlet Needle, Seat. & Clip (Incl. 31)

Spr_ugCap

PdmerBulb/RetainerRing
Main Nozzle Tube

CarburetorTube

* "O" Ring,Main Nozzle Tube

HighSpeed BowlNut
BowlNut Washer

* Welch Plug, Idle MixtureWell
* Welch Plug.Atmoephe_icVent
* Welch Plug

Repair kit (Incl. Items Marked *)

36

CRAFTSMAN 4-CYCLE ENGINE

MODEL NUMBER 143.995502

B--5

O--2

KEY
NO.

11

12

13

PART
NO. DESCRIPTION

590694 Recoil Starter

1

590599A Spdng Pin (Incl. 4)

2

590600 Washer

3

590696 Retainer

4

590601 Washer

5

590697 BrakeSpdng

6

590698 Starter Dog

7

590699 DogSpnng

8

590700 Pulley& Rewind Spring

590695 Starter Housing Ass'y.

590535 Starter Rope ( 98" X 91
590701 StarterHandle

Ass'y.

(40degree

grommet)

64"dia.)

KEY
NO,

m__

3
6
7

8
11

PART
NO. DESCRIPTION

590737 RewindStarter
590740 Retainer

590616 Starter Dog
590617 DogSpdng
590618A Pulley & RewindSpring

Ass'y

590687A Starter HousingAss'y

(40 degreegrommet)

13

12

590535 Starter Rope (Length 98"

x 9/64" dia.)

13
14

I_i i,, --6

T

590701 Starter Handle
590760 SpdngClip

37

38

39

Por in-home major brand repair service:

Call 24 hours a day, 7 days a week

1-800-4-MY-Home sM(1-800-469-4663)

Para pedir servicio de reparacibn a domicilio

1-800-676-5811

In Canada for all your service and parts needs call

Au Canada pour tout le service ou les pieces

1-800-665-4455

For the repair or replacement parts you need:

Call 6 am-1 lpm CST, 7 days a week

PartsDirect sM

1-800-366-PART (1-800-366-7278)

Para ordenar piezas con entrega a domicilio

1-800-659-7084

For the location of a Sears Parts and Repair Center

in your area:

Call 24 Hours a day, 7 days a week

1-800-488-1222

For information on purchasing a Sears Maintenance Agree

ment or to inquire about an existing Agreement:

Call 9 am-5 pm, Monday - Saturday

1-800-827-5655

166881 03.22.99 VB Printedin U.S.A.