Craftsman 917388290 User Manual 5.5 HP 21 REAR DISCHARGE ROTARY LAWN MOWER Manuals And Guides 99040584

CRAFTSMAN Walk Behind Lawnmower, Gas Manual 99040584 CRAFTSMAN Walk Behind Lawnmower, Gas Owner's Manual, CRAFTSMAN Walk Behind Lawnmower, Gas installation guides

User Manual: Craftsman 917388290 917388290 CRAFTSMAN 5.5 HP 21 REAR DISCHARGE ROTARY LAWN MOWER - Manuals and Guides View the owners manual for your CRAFTSMAN 5.5 HP 21 REAR DISCHARGE ROTARY LAWN MOWER #917388290. Home:Lawn & Garden Parts:Craftsman Parts:Craftsman 5.5 HP 21 REAR DISCHARGE ROTARY LAWN MOWER Manual

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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
Visit our Craftsman

Hoffman Estates IL 60179

,{website: www.sears.com/craftsman

Warranty
Safety Rules
Assembly
Operation
Maintenance
Maintenance

2
2
4
6
9
9

Schedule

Product Specifications
Service and Adjustments
Storage
Troubleshooting
Repair Parts
Parts Ordering

10
12
13
15
32
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 workmanship.
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
Become familiar with
know how to operate
properly.
Learn how
mower.
• Do not allow children
mower.
Never allow

manual carefully.
the controls and
your mower
to quickly stop

• 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 manufacturer. Use of such attachments
may be
hazardous.
• The blade turns when the engine
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

to use your
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.
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:

• 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 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.

• 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 deterioration 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

• Before cleaning, inspecting, or repairing 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.

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.

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

service centers.

PERFORMANCE

CLIPPING DEFLECTOR
FOR REAR DISCHARGE LAWN MOWERS

MULCHER

GRASS CATCHERS
FOR
REAR DISCHARGE
LAWN MOWERS

LAWN

MOWER

KITS

STABILIZER

GRASS FOR
CATCHERS
LAWN MOWERS
SIDE DISCHARGE

GAS CANS

MAINTENANCE

MUFFLERS

BELTS

Most Sears stores can also

order repair parts for you, when you provide
the model number of your lawn mower. Some
of these accessodes may not apply to your
lawn mower.

AIR FILTERS

BLADES

BLADE ADAPTERS

SPARK PLUGS

WHEELS

Read these instructions and this manual in

TO REMOVE

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

CARTON

ENGINE OIL

LAWN

MOWER

FROM

• Remove loose parts included with
mower.
• Cut down two end corners of carton and

engine.
Your new lawn mower has been assembled 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 necessary to ensure proper tightness. All parts
such as nuts, washers, bolts, etc., necessary to complete the assembly have been
placed in the parts bag.

lay end panel down flat.
• Remove all packing materials
padding between upper and
handle and padding holding
presence control bar to upper
• Roll lawn mower out of carton
carton thoroughly
parts.
HOWTO
MOWER

for additional

SET UP YOUR

TO UNFOLD

except
lower
operator
handle.
and check
loose

LAWN

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

of lower handle towards each other

Operator
presence
contml bar

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

handle

• 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.

Lift up
Mowing
position

Lower
handle

• Your handles may be adjusted for your
mowing comfort. Refer to Service and
Adjustments section of this manual.
TO INSTALL A'I-rACHMENTS

3-position
Handle
adjustment
bracket

Handle
pin

Your lawn mower was shipped ready to
be used as a mulcher.

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
product. Learn and understand their meaning.

CAUTION
DR WARNING

ENGINE
ON

ENGINE
OFF

FAST

SLOW

CHOKE

FUEL

OIL

supplied

with the

DANGER, KEEP HANDS
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

Wheel adjuster
(on each wheel)

engine.
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.

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.

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

il,

." _: "

ENGINESPEEDCONTROL
The engine speed was set at the factory for
optimum performance. Speed is not adjustable.

Pivot pros
TO

_'_'\

"--

EMPTY'GRASS CATCHER

ENGINE ZONE CONTROL

• Lift up on grass catcher using the frame
handle.

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 circumstances 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

• 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;
it will cause unnecessary wear.
Bag
handle

for high cut.
• Adjust cutting height to suit your requirements. Medium position is best for most
lawns.

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

NOTE: Adjuster is properly positioned when
plate tab inserts into hole in lever. Also, 9position adjusters (if so equipped) allow lever
to be positioned between the plate tabs.

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.

Lower Wheels for High Cut
Plate Tab

• Pour oil slowly. Do not over fill
• Check oil level before each use. Add oil if
needed. Fill to full line on dipstick.
• To read proper level, tighten engine oil cap
each time.

Lever

• 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.

Raise Wheels for Low Cut
GRASS

Grass
catcher frame
handle

BEFORE STARTING ENGINE
OIL

• 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.

TOATTACH

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.

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

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.
8

• 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 with water
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 is wet. 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 it will 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

As
You
COMPLETE
.EGU
SE.V,C
,.
Check for Loose Fasteners
Clean/Inspect Grass Catcher
M

Clean Lawn Mower

Clean Under DriveMowers)
(Power-Propelled
Cover

ySERV'CE
OATES
I_

ll/

Check ddve belt/pulleys

CheckJSharpen/Replace Blade
(P0wer-Pr0pelled Mowers)
Lubrication Chart
Clean Battery/Recharge
(Electric Start Mowers)

3
V'
I_

Check Engine Oil Level

Change Engine Oil

Ij/1,2

Clean Air Filter
Inspect Muffler
Clean or Replace Spark Plug

ii / =
i##

I
N

E Replace
AirFilterPaperCartridge
12 3 4 -

I/2

Change rr_ceonen when operatingunder a heavyload of in h_ghambient temperatures.
_
mcre often when oper_ng In d_dyor dusly cond_Jons.
Replace blades rnoreoftenwhen rno_ng in sandysoil.
Charge48 hoursedend of w.

GENERAL

RECOMMENDATIONS

LUBRICATION
Wheel
adjusters

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 in the 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 filter element assures proper air-fuel
mixture and helps your engine run better
and last longer.
• Follow the maintenance schedule in this
manual.
BEFORE EACH USE

CHART

Brake spring
_gineoil
(_) Rear
door
hinge

• Check engine oil level.
• Check for loose fasteners.
LU BRICATION

(_) Handle bracket
mounting pin

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

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

lubricating bearings. If you feel _ey must be
,lubricated, use only a dry, powdered graphite
type lubricant sparingly.

PRODUCT
MODEL

NUMBER

SERIAL

NUMBER

SPECIFICATIONS
917.388290

DATE OF PURCHASE
HORSEPOWER:

5.5

GASOLINE

1.5 QUARTS

CAPACITY/TYPE:

UNLEADED
OIL TYPE (API-SF/SG/SH):

SAE 30 (ABOVE
SAE 5W-30

OIL CAPACITY:
SPARK PLUG(GAP:

REGULAR
32°F)

(BELOW

32°F)

20 OZS.
.030")

CHAMPION

VALVE CLEARANCE:

RJ19LM

OR J19LM

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

lawn mower housing.Record
provided above.

will be found on a decal attached
both serial

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 counterclockwise.

number

to the rear of the

and date of purchase

in space

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."

IMPORTANT:
treated.
TO SHARPEN

Blade bolt is grade 8 heat
BLADE

NOTE: We do not recommend sharpening 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
Lockwasher

Crank
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

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

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.

-20"

TEMPERATURE

ENGINE

RANGE ANTICIPATED

BEFORE NEXT OIL CHANGE

• Clean the inside of the cover and the

CLEANING

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

IMPORTANT:
For best performance,
keep
mower housing free of built--up
grass
and trash. Clean underside of mower
housing after each use.

tighten.
Collar

Clip

Turn
counter-ctockwise to
remove

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.

Slot
clockwise
Air filter cover

to tighten

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.

• 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

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.

MOWER

TO ADJUST

CUTTING

HEIGHT

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

Handle pin

in
Low
J

3-position
Handle
adjustment
bracket

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.

ENGINE
CARBURETOR

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 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

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.

Operator Presence
Control Bar

Immediately prepare your lawn mower for
storage at the end of the season or if the unit
will not be 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 "CLEANING" 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.
pin

Med.
Low
J

3-position
Handle

Upper
Handle
Fold Forward
For Storage

:old
Backward
Mowing
, Position
Lower
Handle

ENGINE
FUELSYSTEM
IMPORTANT:
It is 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.

adjustment
I_racket

ENGINEOIL

starts to rust. Rust and/or dirt in your
gasoline will cause problems.
• If possible, 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 unit to rust.
IMPORTANT: Never cover mower while
engine and exhaust areas are still warm.

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

CAUTION: Never store the lawn mowerwith
gasoline in the tank inside a buildingwhere
fumes may reach an open llama orspark.
Allowthe engineto cool before storing in any
enclosure.

• Do not store gasoline from one season to
another.
• Replace your gasoline can if your can

TROUBLESHOOTING
PROBLEM
Does not start

Loss of power

CHART
CAUSE

CORRECTION

1.
2.
3.

Dirty air fiiter.
Out of fuel.
Stale fuel.

1.
2.

Clean/replace
Fill fuel tank.

air filter.

Waterinfuel.

Drain tank and refill with
fresh dean fuel.
Drain fuel tank and
carburetor and refill tank

Spark plug wire is
disconnected.

6.
7.
8.

Bad spark plug.
6.
Loose blade or broken blade 7.
adapter.
Control bar in released
8.

position.
Control bar defective.

with fresh gasoline.
Connect wire to plug.
Replace spark plug.
Tighten blade bolt or
replace blade adapter.
Depress control bar to
handle.

Replace control bar.

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

Set to "Higher Cut"
position.

Cutting too much grass.

Set to "Higher Cut"
position.

3.
4.

Dirty air filter.
Buildup of grass, leaves,
and trash under mower.

3.
4.

ClearYreplace air fiiter.
Clean underside of mower

housing.
Check oil level.

5. Too much oil in engine.
6. - Walking speed too fast.

Cut at slower walking
speed.

TROUBLESHOOTING CHART
PROBLEM
CAUSE
Poor cut - uneven

Wom, bent or loose blade.

Wheel heights uneven.

Replace blade. Tighten
blade boll
Set all wheels at same

Buildup of grass, leaves
and hash under mower.

height
Clean underside of

Worn, bent or loose blade.

Bent engine crankshaft.

Engine flywheel brake is on
when control bar is released

Bent engine crankshaft.

3.
4.

Blade adapter broken.
Blade dragging in grass.

3.
4.

Excessive
vibration

Starter rope hard
to pull

CORRECTION

mower housing.

Replace blade. T'_hten
blade belt.
Contact an authorized
servicecenter.
Depress control bar to
upper handle before
pulling starter rope.
Contact an authorized
service center.
Replace blade adapter.
Move lawn mower to cut
grass or to hard surface
to start engine.

Graes catcher
not filling (if so

1.
2.

Cutting height too low.
Lift on blade worn off.

1.
2.

Raise cutting height.
Replace blade.

equipped)

Catcher not venting air.

Clean grass catcher.

Hard to push

Raise cuttingheight.

Grass is too high orwheel
height is too low.
Rear of lawn mower

housing or blade dragging
in grass.
Grass cetcher too full.

Raise rear of lawn mower
housing one (1) setting
higher.
Empty grass cetcher.
Adjust handle height to
suit.

Handle height position not
right for you.

3.
4.

CRAFTSMAN ROTARY LAWN MOWER -- MODEL NO. 917.388290

CRAFTSMAN ROTARY LAWN MOWER-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

DESCRIPTION
Control Bar
UpperHandle
LowerHandle
RopeGuide
Locknut 1/4-20
Handle Bolt
WireTie
Hex Bolt5/16-18 x 3/4
Locknut 5/16-18
Shoulder Bolt
Engine Zone ControlCable
Hex Washer Head Screw #10-24 x 1/2
Up-Stop Bracket
Handle Knob
HairpinCotter
HingeRod
Support Bracket
Screw
Axle Arm Assembly - LF
Axle Arm Assembly - RF
Rear Skirt
Selector Spring
Rear Door Assembly Kit (Incl. Springs)
Locknut 5/16-18
Handle Bracket Assembly (Left)
Handle Bracket Assembly (Right)

KEY
NO.

MODEL NO. 917.388290

PART
NO.

27
28
29
30
31
33
34
35
35
37
38
39
40
41
42
43
44
45
46
47
48
52
53
54
55
56
57
67
68
70

851856
63124
160835X007
19112222
151161
87877
167130X004
57143
160828
151162
73990500
83923
77400
88652
165766
165767
165912
150406
85463
161551
167131X004
166872
851084
850263
851074
165833
851514
166113
165755
......

- - -

161058
166881

DESCRIPTION
Screw 1/4-20 x 3/8
Nut
Wheel Adjusting Bracket - Front
Spacer
Wheel
Selector Knob
Axle Arm Assembly - LR
Wavewasher
Shoulder Bolt 5/16-18
Wheel Assembly
Nut
Flanged Locknut
Hubcap
HingeScraw
Spdng(LH)
Spdng(RH)
Door Bolt
Hex Head Thread Rolling Screw 3/8-16 x 1
DangerDecal
Adjustment Bolt
Axle Arm Assembly - RR
Housing Assembly (Incl. Ref. #17, 18 & 46)
Hex Head Screw 3/8-24 x 1-3/8 Grd. 8
Helical Lockwasher
HardenedWasher
21" Blade
Bleda Adapter
Grass Bag
Catcher Frame
Engine - (See Breakdown)
Craftsman 143.995502
Warning Decal (Not Shown)
Owner'sManual

CRAFTSMAN

4-CYCLE

ENGINE

MODEL NUMBER 143.995502

298

,3O0

370C
4O0

135

61"-.292

130

126
120

119
125

416

275

310

172

46
38O

2O7

182

178

238

25O

CRAFTSMAN
KEY
NO,

PART
NO.

37266

2
6
7

26727
33734
36557

12
1ZA

36775
36558

12B
!4
15
16
17
18

36694
28277
30589
34839A
31335
651018

19
20
30
40

36281
32600
36776
40004
40005

36070
36071

42
43
45

40006
40007
20381
36777

46
48
50
52
69
70

32610A
27241
36778
29914
35261
34311E

72
75
80
81
82

36083
27897
30574A
30590A
30591

83
86
89
90
92
93
100
101
103

30588A
650488
611004
611112
650815
650816
34443B
610118
651007

110
119
120
125

37047
36787
36825
37288

126

37289

130
135

6021A
35395

150
151
151A
169

31672
31673
40017
36783

4-CYCLE

MODEL NUMBER 143.995502

ENGINE

DESCRIPTION
Cylinder
(Ind. 2,20 & 150)
DowelPin
Breather Element
Breather Ass'y.
(Incl. 6 & 12A)
Breather Tube
Breather Cover & Tube
(Ind. 12B)
Breather Tube Elbow
Washer
Governor Rod (Ind. 14)
Govemor Lever
Governor Lever Clamp
Screw, Torx "I"-15,8-32 x
19/64"
Extension Spring
Oil Seal
Crankshaft
Piston, Pin & Ring Set
(Std.)
Piston, Pin & Ring Set
(.010" OS)
Piston & Pin Ass'y.
(Std.) (Incl. 43)
Piston & Pin Ass'y.
(.010" OS) (Ind. 43)
Ring Set (StdJ
Ring Set (.010" OS)
Piston Pin Retaining Ring
Connecting Rod Ass'y.
(Incl 46)
Connecting Rod Bolt
Vatve Lifter
Camshaft(MCR)
Oil Pump Ass'y.
* Mounting Flange Gasket
Mounting Flange (Ind. 72
thru 83,306)
Oil Drain Plug
Oil Seal
Governor Shaft
Washer
Governor Gear Ass'y.
(Incl. 81)
Governer Spool
Screw, 1/4-20 x 1-114"
Flywheel Key
Flywheel
BelleviltaWasher
Flywheel Nut
Solid State ignition
Spark Plug Cover
Screw, Torx T-15, 10-24
x 15116"
GroundW=re
* Cylinder Head Gasket
Cylinder Head
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.

PART
NO.

172
174
178

36784
30200
29752

182
184

6201
26756

185
186
189
191

36785
32653
650839
36559A

195
207
216
223
224
238
239
241
245
250
260
261
262
275
277
285
287
290
292
298
300

610973
34336
33086
650451
36786
650932
34338
35797
35O66
35065
36980
30200
650831
36790A
650988
35000A
650926
29774
26480
28763
36916

301
305
306
307
309
310
313
325
370A
370C
370K
380
390
400

36246
35647
36998
35499
650562
35648
34080
37152
36261
37199
36695
640174
590737
36792B

416

36085

417

650821

900
900

DESCRIPTION
Valve Cover
Screw, 10-24 x 9/16"
Nut & Lock Washer, 1/428
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. Adjusting Lever
Screw, 114-20 x 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, 114-20 x 1/2
Muffler
Screw, 114-20 x 2-5/16"
Starter Cup
Screw, 8-32 x 21164"
Fuel Line
Fuel LineClamp
Screw, 10-32 x 35164"
Fuel Tank (Incl. 292 &
301)
Fuel Cap
Oil Fill Tube
* =O'-Ring
"O'-Ring
Screw, 10-32 x 112"
Dipstick
Spacer
SpringClip
Lubrication Decal
Pdmer Decal
Starter Decal
Carburetor (Ind. 184)
RewindStarter
Gasket Set (Incl. Items
Marked *)
Spark Arrestor Kit (Incl.
417)(Optional)
Screw, 10-32 x 112"
(Optional)
Replacement Engine
750826A, order from 71 999
Replacement Short Block
750796B, order from 71999
RPM High 2900 to 3200

NOTE: This engine could have been built with 590694
starter
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm

CRAFTSMAN

4-CYCLE

ENGINE

MODEL NUMBER 143.995502

KEY
NO.
1
2
4
5
6
7
16
17
18
2O
2OA
25
27
28
29
3O
31
35
36
3OA
37
40
44
47
48
48A
6O

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
* Dust SealWasher

"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

*
*
*
*

Pdmer Bulb/RetainerRing
Main Nozzle Tube
CarburetorTube
"O" Ring, Main Nozzle Tube
High Speed Bowl Nut
Bowl Nut Washer
Welch Plug, Idle MixtureWell
Welch Plug. Atmoephe_icVent
Welch Plug
Repair kit (Incl. Items Marked *)

CRAFTSMAN

4-CYCLE

MODEL NUMBER 143.995502

ENGINE

KEY
NO.

PART
NO.

1
2
3
4
5
6
7
8

590694
590599A
590600
590696
590601
590697
590698
590699
590700

590695

590535

590701

DESCRIPTION
Recoil Starter
Spdng Pin (Incl. 4)
Washer
Retainer
Washer
Brake Spdng
Starter Dog
Dog Spnng
Pulley & Rewind Spring
Ass'y.
Starter Housing Ass'y.
(40 degree
grommet)
Starter Rope ( 98" X 91
64" dia.)
Starter Handle

B--5
O--2

KEY
NO,
3
6
7
8

590737
590740
590616
590617
590618A

590687A

590535

13
14

590701
590760

m__

I_i

i,, --6

PART
NO.

DESCRIPTION
RewindStarter
Retainer
Starter Dog
DogSpdng
Pulley & Rewind Spring
Ass'y
Starter Housing Ass'y
(40 degree grommet)
Starter Rope (Length 98"
x 9/64" dia.)
Starter Handle
Spdng Clip

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
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

Printedin

U.S.A.

Source Exif Data:

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File Type Extension             : pdf
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PDF Version                     : 1.2
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Page Count                      : 24
Page Layout                     : SinglePage
Page Mode                       : UseNone
Producer                        : Goby Monitor Application version 3, 2, 1, 4
Create Date                     : Mon Apr 02 11:35:09 2007
Author                          : 
Title                           : 
Subject                         :

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Craftsman 917388290 User Manual 5.5 HP 21 REAR DISCHARGE ROTARY LAWN MOWER Manuals And Guides 99040584

CRAFTSMAN Walk Behind Lawnmower, Gas Manual 99040584 CRAFTSMAN Walk Behind Lawnmower, Gas Owner's Manual, CRAFTSMAN Walk Behind Lawnmower, Gas installation guides

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