Craftsman 917388360 User Manual 6.25HP 21 ROTARY LAWN MOWER Manuals And Guides L0010029

CRAFTSMAN Walk Behind Lawnmower, Gas Manual L0010029 CRAFTSMAN Walk Behind Lawnmower, Gas Owner's Manual, CRAFTSMAN Walk Behind Lawnmower, Gas installation guides

User Manual: Craftsman 917388360 917388360 CRAFTSMAN CRAFTSMAN 6.25HP 21 ROTARY LAWN MOWER - Manuals and Guides View the owners manual for your CRAFTSMAN CRAFTSMAN 6.25HP 21 ROTARY LAWN MOWER #917388360. Home:Lawn & Garden Parts:Craftsman Parts:Craftsman CRAFTSMAN 6.25HP 21 ROTARY LAWN MOWER Manual

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Owner's Manual

[RRFTSMRN
6.25 HORSEPOWER
21" MULTI-CUT
ROTARY LAWN MOWER

Model No.
917.388360

•
•
•
•

Safety
-Assembly
Operation
Maintenance

•
•

Eepafiol
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 ...............................................
Safety Rules .........................................
Assembly ..............................................
Operation .............................. ;...............
Maintenance Schedule ........................
Maintenance .........................................

2
2
4
6
10
10

Product Specifications .......................... 11
Service and Adjustments ...................... 13
Storage ................................................. 15
Troubleshooting ................................... 16
Repair Parts .......................................... 34
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 workmanship.
If this Craftsman Lawn Mower is used for commereial 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/Depadment 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, ROEBUCKAND CO., D/817 WA, HOFFMAN ESTATES, ILLINOIS 60179

Safety standards require operator
presence control to minimize the risk of
injury.Your 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. Leam 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
persons, especially small children and
pets.
• Use mower only as the manufacturer
intended and as described in this
manual.

• 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 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

sandals. Wear only solid shoes with
good traction when mowing.
• Check fuel tank before starling 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 properly.
• Check all bolts, nuts and screws at
• Keep your eyes and mind on your
frequent intervals for proper tightness to
mower and the area being cut. Do not
be sure mower is in safe working
• condition.
let other interests distract you.
• Do not mow wet or slippery grass.
• Keep all safety devices in place and
working.
Never run while operating your mower.
Always be sure of your footing - keep a
• To reduce fire hazard, keep the engine
firm hold on the handles and walk.
free of grass, leaves or excessive
• Do not put hands or feet near or under
grease and oil.
rotating parts. Keep clear of the
• Check grass catcher often for deterioradischarge opening at all times.
tion and wear and replace worn bags.
Use only replacement bags that are
• Always stop the engine whenever you
leave or are not using your mower, or
recommended by and comply with
before crossing driveways, walks,
specifications of the manufacturer of
reads, and any gravel-covered areas.
your mower.
• Always keep a sharp blade on your
• Never direct discharge of material
mower.
toward bystanders nor allow anyone
near the mower while you are operating • Allow engine to cool before storing in
it.
any enclosure.
• Never store mower with fuel in the tank
• Before cleaning, inspecting, or repairing your mower, stop the engine and
inside a building where fumes may
make absolutely sure the blade end all
reach an open flame or an ignition
source such as a hot water heater,
moving parts have stopped. Then
disconnect the spark plug wire and
space heater, clothes dryer, etc.
keep it away from the spark plug to
ALook for this symbol to point out
prevent accidental starting.
important safety precautions. It means
• Do not continue to run your mower if
CAUTIONII!
BECOMEALERTf!!
YOUR
you hit a foreign object. Follow the
SAFETY IS INVOLVED.
procedure outlined above, then repair
ACAUTION:
Always disconnect spark
any damage before restarting and
plug wire and place wire where it cannot
operating your mower.
contact spark plug in order to prevent
• Do not change the governor settings or
accidental starting when setting up,
overspeed the engine. Engine damage
transporting, adjusting or making repairs.
or personal injury may result.
• Do not operate your mower if it vibrates
_I, WARNING:
The engine exhaust from
abnormally. Excessive vibration is an
this product contains chemicals known to
indication of damage; stop the engine,
the State of California to cause cancer,
safely check for the cause of vibration
birth defects, or other reproductive harm.
and repair as required.
• Do not run the engine indoors. Exhaust
fumes are dangerous.

These accessorieswere availablewhen this lawn mower was produced. They are not
shipped with your mower. They are also availableat most Sears retailoutletsand service
centers. Most Sears storescan alsoorder repair partsfor you, when you providethe model
numberof your lawnmower. Some of these accessoriesmay not applyto your lawn mower.
LAWN MOWER PERFORMANCE

CLIPPING DEFLECTOR
FOR REAR DISCHARGE LAWN MOWERS

MULCHER

GRASS CATCHERS
FOR
REAR DISCHARGE
LAWN MOWERS

KITS

GRASS CATCHERS
FOR
SIDE DISCHARGE
LAWN MOWERS
GAS CANS

LAWN MOWER MAINTENANCE

MUFFLERS

BELTS

AIR FILTERS

BLADES

BLADE ADAPTERS

Read these instructionsand 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 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.

SPARK PLUGS

WHEELS

ENGINE OIL

TO REMOVE LAWN MOWER FROM
CARTON
• Remove loose parts included with
mower.
• Cut downtwo end comers 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

Operator
presence
Control bar

HANDLE

IMPORTANT:
Unfold handle carefully so
as not to pinch or damage control cables.

handle
Liftup

• Raise lower handle section to operating
position and squeeze the bottom ends
of lower handle towards each other
until the pin in handle can be inserted
into one of the throe height adjustment
holes.

Mowing
posi_on

Lower
handle

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

Handle
pin
adjustment
/bracket

• 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 ATTACHMENTS
Your lawn mower was shipped ready to
be used as a mulcher. To convert to
bagging or discharging, see =To convert
moweP in the OPERATION section of thi,,
manual.

KNOW YOUR LAWN MOWER
READ THIS OWNER'S MANUALAND SAFETY RULES BEFORE OPERATING YOUR LAWN
MOWER. Compare the illustrationswith your lawn mower to familiarizeyourselfwiththe
iocation of variousconb'oleand adiustmants. Save this manualforfuture reference.
These symbols may appear on your lawn mower or in literature supplied with the
product. Learn and understand their meaning.

CAUTION
OR WARNING

ENGINE
ON

ENGINE
OFF

FAST

SLOW

CHOKE

FUEL

OIL

DANGER, KEEP HANDS
AND FEET AWAY

presence control
bar

control cable

Handle

Primer

with dipstick
Mulcher door

Lawn mower housing

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

Wheel adjuster

en_line.

(on each wheel)

MEETS CPSC SAFETY REQUIREMENTS
Sears rotary walk-behind power lawn mowers conform to the safety standards of the
National Standards Institute and the U.S. Consumer Product Safety Commission. The blade
turns when _ engine is running.

Operator Presence Control Bar- must be
held down to the handleto startthe engine.
Release to stop the engine.

Pflmer - pumps additional fuel from the
carburetor to the cylinder for use when
staring a cold engine.
Starter Handle - used for starting the engine,

REAR BAGGING
The opem..U.orl
of any lawn mower
can resulttnforeign objectsthrown • Liftreardoor ofthe lawn mower and plao
intotheeyes, whichcan resultin
the grass catcher frame hooks onto the
asvere eye damage. Always wear safety
door
pivot
l ns.
glasses or eye shieldswhile operatingyour
• To convert to mushing or discharging
lawn mower or performingany adjustments ' operation, remove grass catcher and
or repairs. We recommenda wide vision
rear door.
s_ety mask over spectaclesor standmd
safety glasses.
HOW TO USE YOUR LAWN MOWER
ENGINE SPEED CONTROL

The engine speed was set at the factoryfor
optimumperformance. Speed is not adjustable.
ENGINE

ZONE CONTROL

•,CAUTION:
Federal regulations require
an engine control to be installed on this
lawn mower in order to minimize the dsk
of blade contact injury.
circumstances attempt
function of the operator
turns when the engine

Do not under any
to defeat the
control, The blade
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

Pivotpins

SIDE DISCHARGING
• Rear door must be closed.
• Open mulcher door and installdischarge
deflectorunder guard as shown.
• Mower is now ready for discharging
operation.
• To convert to mulchingor bagging
operation,dischargedeflectormust be
removed and mulcher doormust be
closed,
SIMPLE STEPS TO REMEMBER
WHEN CONVERTING YOUR LAWN
MOWER

operate the lawn mower.
TO ADJUST cu'rlrlNG HEIGHT
• Raise wheels for low cut and lower wheels

FOR MULCHING

• Rear door cloesd.
• Mulcher door closed.

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

FOR REAR BAGGING• Grass catcher installed.
• Muicher door dosed.

• 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.
Plate Tab
Lower Wheels for High Cut

FOR SIDE DISCHARGING

• Rear door closed.
• Side discharge deflector installed.
ACAUTION:
Do not run your lawn mow(
without rear door closed or approved
grass catcher in place. Never attempt to
operate the lawn mower with the rear
door removed or propped open.

Lever

Raise Wheels for Low Cut

TO CONVERT MOWER
Your lawn mower was shippedready to be
used as a mulcher. To convertto baggingor
discharging:

door

Open
Mulcher Door

Discharge
deflector

BEFORE STARTING ENGINE
OIL
Your lawn mower is shippedwithoutoil in the
engine.
• Be sure mower is leveland area around oil
fillis clean.
• Remove engine oil cap and fillto the full
lineon the dipstick.
NOTE: Allow oil to settle down into
engine for accurate dipstick reading.
• Engine holds 20 ozs. of oil. Fortype and
grade of oilto use, see =ENGINE" in
Maintenance sectionof this manual.
• Pour oilslowly. Do not over fill
• Check oil level before each use. Addoilif
needed. Fillto fulllineon dipstick,
• To read properlevel,tighteneng'vneoil cap
each time.
• Reinstall engine oil cap and tighten.
• Change the oil after every 25 hours of
operationor each season. You may need
to changethe oil more often under dusty,
dirtyconcrdions.
ADD GASOMNE
• Fillfuel tank. Use fresh, clean, regular
unleaded gasolinewith a minimumof 87
octane. Do not mix oil with gesoi'me.
Purchasefuel in quantitiesthatcan be
used within30 days to assurefuel
freshness.

_WARNING:
Expedence 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 gas tank, start the
engine and let it run until the 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 the fuel
tank or permanent damage may occur.
_I_CAUTION:
Fill to bottom of gas tank
filler neck, Do not overfill, Wipe off any
spilled oil or fuel. Do not store, spill or use
gasoline near an open flame.
TO START ENGINE
• To start a cold engine, push primer three
(3) 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 stader handle
quictdy. Do not allow starter rope to snap
beck.
• To stop engine, release operator presence
control bar.
NOTE: In cooler weather it may be
necessary to repeat pdming 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 aiid do not repeat
priming steps,
Gasoline filler
cap
Engine oil
cap

MOWINGTIPS
• Under certain conditions,such as very taU
grass,it may be necessaryto raisethe
heightof cutto reduce pushingeffortand to
keep from overloadingthe engine end
leavingdumps of grass dippings. It may
also be necessaryto reduce groundspeed
and/or runthe lawn mower overthe area a
second time.
• For extremelyheavy cutting,reducethe
widthof cut by overlappingpreviouslycut

pethandmowstowly.
• Forbetter grass baggingand mostcutting
conditions,the engine speed shouldbe set
in thefast position.
• Pores in doth grass catcherscan become
filladwithdirtand dustwith use and
catchers will collectless grass. To prevent
this,regularlyhose catcher off withwater
and let dry before using.
• Keep top of engine around starterclear
and claan of grass clippingsand chaff.
This willhelp engine air flow and extend
engine life.

MULCHING MOWING TIPS
IMPORTANT: For best performance, ke_
mower housing free of built-up grass ant
trash. Clean UNDERSIDE OF MOWER
HOUSING after each use. See "Cleanin.€
in MAINTENANCE section of this manu_
• The special mulching blade will recutthe
grass clippingsmany times and reduce
them in size so t_%_t
_s theyfall ontothe
lawn they will d_sperseintothe grassand
not be noticed.Also, the mulchedgrassw
biodegrade quicklyto providenutrientsto1
the lawn. Always mulchwith your highest
engine (blade) speed as this will provide
the best recuttingac'donofthe blades.
• Avoidcuttingyour lawn when it iswet. We
grass tendsto form dumps and interferes
with the mulching action.The besttime to
mow your lawn is the early afternoon.At
this time the grass has driedand the newl
cut area will not be exposedto the direct
SUn.

• For best results,adjust the lawn mower
cuttingheightso that the lawn mowercuts
off onlythe top one-thirdof the grass
blades. If the lawn is overgrownitwillbe
necessaryto raisethe heightof cutto
reduce pushingeffortand to keep from
overloadingthe engine and leaving
dumps of mulchedgrass. Forextremely
heavy mulching,reduceyour width of cut,
mow slowlyand raise the rear of the lawn
mower c_e wheel adjustersettinghigher
tban the front.
• Certaintypes of grass and grass corditior_
may requirethat an area be mulcheda

s :ond
_.

to
Whendeinga _xmd out,mow

acrossor peq_x_rDcular
to the firstout path
• Change your cutSngpattem from week to
+week. MOw northto southene week than
changeto east to weet the next week. This
willhelp preventmaffingand grainingof
the lawn.

1/3

MA,
N,E,ANCESCHEOULE
AS YOU COMPLETE

/__-_'_.

Check for Loose Fastenem
Clean/inspect Grass Catcher

(ffEquipped)

O___

Clean
Mower Cover
Clean Lawn
UnderDrive

Check
ddve belt_0ulleys
IPower-PropenedMowem)
(Power.Propelled Mowers)

Check/Sharpen/Replace

I_s

Blade

Lubrication Chart

C;ean Battery/RecharQe
IElectdc Start Mowers_

E Check
Level
ChangeEnQine
EngineOilOil

.....

I_'

1_4

I/1.2

Inspect Muffler
Clean Air Filter

N Clean
or ReplaceSparkPlug
ReplaceAir
RlterPaperCadddge

IS'=

1 ÷Change mornoftml when operasng under a heavy load or in high artY_enttemperatdres,
2 - Service more oftenwhen opemffng In dkty or _
conditions.
3 ° Replace bladu rnore often when mowing In samly =ol
4. Charge 48 hoursal end of season.

GENERAL

RECOMMENDATIONS

LUBRICATION

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

CHART

Wheel
adjusters

intheSew e and

Adjt_Vnentssectionofthismanual ,shouldbe
checked at least once each season.
3rake spdng
bracket

• Once a year, replace the spark plug,
replace air filter element and check blade
for wea'. A new spark plug and clean/new
air filter element assures proper air-fuel
mixture and helps your engine run better

aed

(_ Rear
door
hinge

nger.

• Follow the maintenance schedule in this
manual.
BEFORE EACH USE
• Check engine oil level
• Check for loose faateners.
LUBRICATION
Keep unit well lubricated (See 'LUBRICATION
CHART").

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 lubricants will
attract dust and dirt that will shorten the
life of the self lubricating bearings. If you
feel they must be lubricated, use only a
dry, powdered graphite type lubricant
sparingly.

PRODUCT SPECIFICATIONS
MODEL

NUMBER

917.388360

SERIAL NUMBER
DATE OF PURCHASE
GASOLINE
I

CAPACITY/TYPE:

1_5 QUARTS
UNLEADED

OILTYPE

(API-SF/SG/SH):

REGULAR

SAE 30 (ABOVE 32°F)
SAE 5W-30 (BELOW 32°F)

OIL CAPACITY:

20 OZS.

SPARK PLUG(GAP:

.030")

CHAMPION

VALVE CLEARANCE:

INTAKE:
EXHAUST:

SOLID STATE IGNITION
AIR GAP:

RJ19LM

OR Jt 9LM

.004 - .008
.004 - .008

.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
provided above.

both serial number and date of purchase in space

LAWNMOWER

TO REPLACE BLADE

Always observe safety rules when performing
any maintenance.

• Position the blade 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.
o The recommended tightening torque is
35-40 ft. Ibs.
IMPORTANT: Blade bolt is grade 8 heat
treated.

TIRES
• Keep tires free of gasoline,oil,or insect
controlchemicalswhk_hcan harm rubber.
• Avoidstumps,stones,deep ruts,sharp
objectsand other hazards that may cause
tire damage.
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 tuming counterclockwise.

• 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.
11

TO SHARPEN 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
keyway
Blade

Bolt
crank
Lockwashar Hardened
Blade shaft
washer
Trailing adapter
edge
GRASS CATCHER

• The grass _
may be heaed with
water, but mustbe dry when used.
• Check your grass catcher often for damage
or deterioration.Through normal use it will
wear. If catcher needs replacing,replace
only with a manufacturerapproved
replacementcatcher.Give the lawn mower
model number when ordering.
ENGINE
LUBRICATION
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

"30'
-2O"
-10"
O'
TEMPERATURE RANGE ANTICIPATED

GRADES

10"
20"
30"
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 revel
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 willnot 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 tuming
counterclockwise to the stop and pull
away from collar.
• Remove filter from inside of cover.

• 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

Clip

Tum
counter-to
remove
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.

ACAUTION:
Before performing any
service or adjustmentsL
• 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 cu'rrlNG HEIGHT
See "TO ADJUST CUTTING HEIGHT" in
the Operation section of this manual.
REAR DEFLECTOR
The rear defi_or,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.

CLEANING
IMPORTANT: For best performance, ke_
mower housing free of built--up grass
and trash. Clean underside of mower
housing after each use.
_CAUTION:
Disconnect spark plug wit
from spark plug and place wire where it
cannot come in contact with the spark
plug.
• Turn lawn mower on its side. Make sL
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 fr_
of all gasoline, oil, etc.
• We DO NOT recommend using a
garden hose to clean lawn mower
unless the electrical system, muffler, 8
filter and carburetor arecovered to
keep water out. Water in engine can
result in shortened engine life.

TO ADJUST HANDLE
The handle on your lawn mower has
three (3) height positions - adjust to heig
that suits you,
• Squeeze the bottom ends of lower
handle towards each other until the pir
in handle can be inserted into one of
the three height adjustment holes.

Handle pin
Low
3-posttiol
adjustrnel
bracket

TO ASSEMBLE GRASS CATCHER
• Put grass catcher frame into grass bag
with dgid part of bag on the bottom.
Make sure the frame handle is outside
of the bag top.
• Slip vinyl bindings over frame.
NOTE: If vinyl bindings are too stiff, hold
them in warm water for a few minutes. If
bag gets wet, let it dry before using.
ACAUTION:
Do not run your lawn mower
without clipping deflector or approved
grass catcher in place. Never attempt to
operate the lawn mower with the rear
door removed or propped open.
Catcher

.--_

handle _

_/'_

./k\\

ENGINE
CARBURETOR
Your carburetorhas a non-adjustsblefixed
main jet for mixturecontrol. Ifyour engine
does not operate properlydue to suspected
carburetorproblems,take your lawn mowerto
an authorizedservicecenterfor repairor
adjustment.
IMPORTANT: Never tamper with 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 enginespeed has been factoryset Do
not attemptto increaseenginespeed or it
may resultin personal injury. If you believe
that the engineis running too fast or too slow,
take your lawn mowerto an authonzed
service center for repairand adjustment.

opening

Immediately prepare your lawn mower(or
Operator Presence
storageat the end of the season or ifthe unit
willnot be used for 30 days or more.
Upper
LAWN MOWER
• Handle
When lawn mower isto be storedfora period
Fold Forward'-'_
of time, clean it thoroughly,removeall dirt,
grease, leaves,etc. Store in a clean, dryarea.
Control Bar
• Clean entire lawn mower (See "CLEANING" in the Maintenancesectionof this
Mowing
manual).
Position
• Lubricateas shown in the Maintenance
sectionof this manual.
Lower
• Be surethat all nuts,belts, screws, and pins
Handle
are securelyfastened. Inspect moving
ENGINE
partsfor damage, breakage and wear.
Replace if necessary.
FUEL SYSTEM
• Touch up all rustedor chippedpaint
IMPORTANT:
tt is important to prevent
surfaces;sand lightlybefore painting.
gum
deposits
from
forming in essential
HANDLE
fuel system parts such as carburetor, fue!
• You can fold your lawn mower handle
filter, fuel hose, or tank during storage.
for storage.
Also, experience indicates that alcohol
• Loosen the two (2) handle knobs on
blended fuels (called gasohol or using
sides of the upper handle and allow
ethanol or methanol) can attract moistur_
handle to fold down to the rear.
which leads to separation and formation
• Squeeze the bottom ends of lower
of acids during storage. Acidic gas can
handle toward each other until pins in
damage the fuel system of an engine
handle clear the brackets and pivot
while in storage.
entire handle assembly forward and
• Drain the fuel tank.
allow it to rest on mower.
• Start the engine and let it run until the
• When setting up your handle from the
fuel lines and carburetor are empty.
storage position, the lower handle will
• Never use engine or carburetor cleane
require manually locking into the
products in the fuel tank or permanent
mowing position.
damage may occur.
IMPORTANT: When folding the handle for • Use fresh fuel next season.
storage or transportation, be sure to fold
NOTE:
Fuel stabilizer is an acceptable
the handle as shown or you may damage
alternative in minimizing the formation of
the control cables.
fuel gum deposits during storage. Add

pin
/

3-position
Handle
adjustment
bracket

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.

ENGINEOIL

OTHER

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.

• Do not store gasoline from one season
to another.
• Replace your gasoline can if your can
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.
_I_CAUTION:
Never store the lawn mower
with gasoline in the tank inside a building
where fumes may reach an open flame or
spark. Allow the engine to cool before
storing in any enclosure.

TROUBLESHOOTING
PROBLEM
Does not start

CHART
CAUSE

CORRECTION

1.
2.
3,

Dirtyair filter.
Out offuel.
Stale fuel.

1.
2.

Clean/replace air filter.
Fill fuel tank.

Water in fuel.

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

Spark plugwire is
disconnected.
Bad spark plug.
Loose blade or brokenblade
adapter.
Controlbar in released
pceltJm.
Controlbar defective.

Connect wire to plug.

6.
7.

Replace spark plug.
Tightenblade boitor
replaceblade adapter.
Depresscontrolbar to
handle.
Replace controlbar.

withesh gas .
6.
7.
8.
9.
Loss of power

2.
3.
4.
5.
6.

8.
9.

Rear of lawn mower housing 1.
or cuttingblade dragging
in heavy grass.
Cuttingtoo much grass.
2.
Dirtyair filter.
Buildupof grass, leaves,
and trash under mower.
Too much oil in engine.
Walking speed too fast.

Set to =Higher Cut"
position.

Setto =Higher Cut"
position.
3. Clean/replaceair filter.
4. Clean undersideof mower
housing.
5. Check oil level.
8. Cut at slower walking
speed.

TROUBLESHOOTING

CHART

PROBLEM

Poor cut- uneven

Excessive
vibration

CAUSE

CORRECTION

1. Worn, bent or loose blade.

Wheel heights uneven.

Replace blade. Tighten
blade bolt.
Set all wheeis at same

Buildupof grass, leaves
and trash under mower.

height
Clean underside of
mower hou_ng.

1. Worn, bent or loose blade.

Bent engine crankshaft.

Replace blade. TKjhten
blade bolt.
Contact an authorized
service center.

Starter rope hard
to pull

Engine flywheel brake is on
when control bar is released

Bent engine cranksh_t.

3.
4.

Blade adapter broken.
Blade dragging in grass.

3,
4.

Depress contro! 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

Grass catcher
not filling (if so

1.
2.

Cutting height too low.
Lift on blade wom off.

equipped)

Catcher not venting _r.

Hard to push

1. " Grass is too high or wheel
h_ight is too low.
• I 2. Rear of lawn mower

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

4. Handlet_ght pes_onnot
rightforyou.

1.
2.
3.

Raise cutting height.
Replace blade.
Clean grass catcher.

Raise cutting height.
.

3.
4.

Raise rear of lawn mower
housingone (1) setting
higher.
Emptygrass catcher.
Adjusthendle heightto
suit.

CRAFTSMAN ROTARY LAWN MOWER--

MODEL NO. 917.388360

34
4O
87

I
I

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
2O
21
22
23
24
25
26
27
28
29
30
31
33

PART
NO.
131696
166860X479
161105X479
132001
636O1
131959
66426
74780512
154132
165754
156577
750097
850733X004
136376
51793
147286
165946X479
17600406
167132X004
167133X004
165858
168360X004
166875
751153
166236X479
166243x479
851856
152124
160835X007
19112222
165760
87877

DESCRIPTION
ControlBar
Upper Handla
LowerHandle
RopaGuido
Locknut 1/4-20
Handle Bolt
WlreTie
Hex Bolt 5/16-18 x 3/4
Hinge Bracket
MulcherDoor
Engine Zone ControlCable
Hex Washer Head Screw #10-24 x 1/2
Up-Stop Bracket
HandleKnob
HairpinCotter
HingeRod
Support Bracket
Screw
Axle Arm Assembly. LF
Axle Arm Assembly - RF
Roar Skirl
Selsctor Spring
Rear Door AssemblyKit (Incl. Spdngs)
Locknut 5/16-18
Handle Brecket Assembly (Left)
Handle BracketAssembly (Right)
Screw 1/4-20 x 3/8
HingeSpdng
Wheel AdjustingBracket - Front
Spacer
Clip on Discharge Guard
Selector Kncb

KEY
NO.

MODEL NO. 917.388360

PART
NO.

34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
56
56
57
58
67
68
70

167130X004
166785
160828
151162
164362
83923
77400
88652
165766
165767
165912
150406
85463
63124
167131X004
151161
57143
73990500
166878
851064
850263
851074
165833
851514
161551
166113
165755
......

---

161058
171200

DESCRIPTION
Axle Arm Assembly - LR
Locknut 5/16-18
ShoulderBolt 5/16-18
Wheel Assembly
Shoulder Boit
Flanged Locknut
Hubcap
HingeScrew
Spdng (LH)
Spring(RH)
Door Bolt
Hex Head Thread Rolling Screw 3/8-16 x 1
DangerDecal
Nut
Axle Ann Assembly - RR
Whee_
WaveWasher
Nut
Housing Assembly (Incl. Ref. #17, 18 & 46)
Hex Head Screw 3/8-24 x 1-3/8 Grd. 8
Helical Lockwasher
HardenedWasher
21" Blade
Blade Adapter
Adjustment Bolt
Grass Bag
Catcher Frame
Engine - (See Breakdown)
Craftsman 143.006200
Waming Decal (Not Shown)
Owner'sManual

CRAFTSMAN

4-CYCLE

ENGINE

MODEL NUMBER 143.006200

_--370K

4OO

130
126

120
119
416

313
125

185

178

238

25O

1897

CRAFTSMAN
KEY
NO.

4-CYCLE

PART
NO.

1
2
6
7
12
12A

37266
26727
33734
36557
36775
36558

12B
14
15
16
17
18

36694
28277
30589
34839A
31335
651018

19
20
30
40

36281
32600
36776
40004
40005

36070

DESCRIPTION

36071
42
43
45

40006
40007
20381
36777

46
48
50
52
69
70

32610A
27241
37460
29914
35261
34311E

72
73
75
80
81
82
83
86
89
90
92
93
100
101
103

30572
28833
27897
30574A
305g0A
30591
30568A
650488
611004
611112
650815
650816
34443B
610118
651007

110
119
120
125

37047
36787
36825
37288

126
130
135
150
151
151A

37289
6021A
35395
31672
31673
40017

ENGINE

Cylinder (Incl. 2,20 & 150)
Dowel Pin
Breather Element
Breather Ass'y. (Incl. 6 & 12A)
Breather Tube
Breather Cover & Tube 0nd.
12B)
Breather Tube Elbow
Washer
Governor Rod (Incl. 14)
Governor Lever
Governor Lever Clamp
Screw, Torx T-15, 8-32x 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.(.0t0"
OS)(Incl. 43)
Ring Set (Std.)
Ring Set (.010" OS)
Piston Pin Retaining Ring
Connecting Rod Ass'y. (Incl.
46)
Connecting Rod Bolt
Valve Lifter
Camshaft (MCR)
Oil Pump Ass'y.
Mounting Flange Gasket
Mounting Flange (Incl. 72 thru
83,306).
Oil Drain Plug (Incl. 73)
Drain Plug Gasket
Oil Seal
Governor Shaft
Washer
Governor GearAss'y. (Incl. 81)
Governor Spool
Screw, 1/4-20 x 1-1/4"
Flywheel Key
Flywheel
Belleville Washer
Flywheel Nut
Solid State Ignition
SparkPlug Cover
Screw, TorxT-15, 10o24X15/
16"
Ground Wire
Cylinder Head Gasket
Cylinder Head
Exhaust Valve (Std.) (Incl.
151)
Intake Valve (Std.) (Incl. 151)
Screw, 5/16-18 x 1-1/2"
Resistor Spark Plug (RJ19LM)
Valve Spdng
Valve Spring Cap
Intake Valve Seal

MODEL NUMBER 143.006200
KEY
NO.

PART
NO.

169
172
174
178
182
184

36783
36784
30200
29752
6201
26756

185
186
189
191
195
207
216
223
224
238
239
241
245
250

36785
32653
650839
36559A
610973
34336
33086
650451
36786
650932
34338
35797
35066
35065

280
261

36980
30200

282
275
277
285
287
290
292
298
300
301
305
306
307
309
310
313
325
355
370A
370C
370K
370R
371
380
390
400

650831
36790A
650988
35000A
650926
29774
26460
28763
36916
36246
35647
36996
35499
650562
35648
34080
37152
590701
36261
37318
36695
37317
37269
640262
590737
36792B

416

36085

417
900
900

650821

DESCRIPTION
*

Valve Cover Gasket
Valve Cover
Screw, 10-24 x 9/16"
Nut & Lock Washer, 1/4-28
Screw, 1/4-28 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)
Termthal
Throttle Link
R.P.M. AdjustingLever
Screw, 1/4-20 x 1"
Intake Pipe Gasket
Screw, 10-32 x 49164"
Air Cleaner Gasket
Air C_eanerCollar
Air Cleaner Filter
Air Cleaner Cover
Blower Housing
Screw, 10-24 x 9/16"
Screw, 1/4-20 x 1/2"
Muffler
Screw, 1/4-20 x 2-5/16"
Starter Cup
Screw, 8-32 x 21/64"
Fual Line
Fuel Line Clamp
Screw, 10-32 x 35/64"
Fuel Tank (Incl. 292 & 301)
Fuel Cap
Oil FillTube
uO'-Ring
=O"-Ring
Screw, 10-32 x 1/2'
Dipstick
Spacer
Spdng Clip
Starter Handle (Black)
Identification Decal
Primer Decal (3 X)
Starter Decal
Warning Decal
6.5 H.P. Craftsman Decal
Carburetor (Incl. 184)
Rewind Starter
Gasket Set (Incl. Items
Marked *)
Spark ArrestorKit (Incl.
417)(Optional)
Screw, 10-32 x 1/2" (Optional)
Replacement Engine NONE
Replacement S/B 750860,
order tram 71-999
RPM High 2900 to 3200

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

CRAFTSMAN

4-CYCLE

ENGINE

MODEL

NUMBER
III

KEY
NO.

PART
NO,

DESCRIPTION

640262
1
2
4
5
6
7
16
17
18
2O
2OA
25
27
28
29
3O
31
35
36
36A
37
4O
44
47
48
6O

631615
631767
631184
631183
640070
650506
631807
651025
630766
640018
640200
631867
631024
632019
631028
631021
631022
640259
640080
632766
632547
640175
27110A
630748
631027
6327608

*
*
*

*
•
*
*

Carburetor
(Incl. 184 of Engine Parts List)
Throttle Shaft & Lever Assembly
Throttle Return Spdng
Dust Seal Washer
Dust Seal (Throttle)
Throttle Shutter
Shutter Screw
Fuel Fitting
Throttle Crack Screw/Idle Speed Screw
Tension Spring
Idle Restrictor Screw
Idte Restrictor Scrwe Cap (Bracts)
FloatBow1
Float Shaft
Roat
Float Bowl "O"Ring
tn_etNeedle, Seat, & C_p (Incl. 31)
SpringCllp
PdmerBulb/Retainer Ring
Main Nozzle Tube
CarburetorTube
=(3"Ring, Maln Nozzle Tube
High Speed Bowl Nut
Bowl NutWasher
Welch Plug, Idle Mixture Well
Welch Plug, Atmospheric Vent
Repak kit (tnc_.
Rerns Marked *)

143.0062_

CRAFTSMAN

4-CYCLE ENGINE

MODEL NUMBER 143.006200

KEY
NO.

PART
NO.

1
2
3
4
5
6
7
8
11

590694
590599A
59O6OO
59O696
59(To01
59O697
590698
59O699
590700
590695

12
13

590535
590701

DESCRIPTION
Recoil Starter
Spdng Pin (Incl. 4)
Washer
Retainer
Washer
BrakeSpdng
Starter Dog
DogSpdng
Pulley & Rewind Spnng Ass'y.
Starter Housing Ass'y.
(40 degree grommet)
Starter Rope ( 98* X 9/64" dia.)
StaRer Handle

_-5
O_2

_--lJl

KEY
NO.

PART
NO.

3
6
7
8
11

59O737
590740
590616
590617
590618A
590687A

59O535

13
14

590701
59O760

tl1-7

DESCRIPTION
Rewind Starter
Retainer
Starter Dog
DogSpdng
Pulley & Rewind Spdng Ass'y
Starter Housing Ass'y
(40degree grommet)
StarterRope
(Length 98" x 9/64' dia.)
Starter Handte
SpringClip

For 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 reparaci6n a domicilio
1-800-676-5811
In Canada for all your service and parts needs call
Au Canada pour tout le service ou les pi_ces
1-800-665-4455
For the repair or replacement parts you need:
Call 6 am-11pm 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
Agreement or to inquire about an existing Agreement:
Call 9 am-5 pm, Monday - Saturday
1-800-827-6655

SEAR8

171200

Rev.1

11.18.99

Printedin

U.S.A,

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Page Layout                     : SinglePage
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Subject                         :

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Craftsman 917388360 User Manual 6.25HP 21 ROTARY LAWN MOWER Manuals And Guides L0010029

CRAFTSMAN Walk Behind Lawnmower, Gas Manual L0010029 CRAFTSMAN Walk Behind Lawnmower, Gas Owner's Manual, CRAFTSMAN Walk Behind Lawnmower, Gas installation guides

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