Owner's Manual
CRAFTSMAN+
6.0 HORSEPOWER
22" EZ MULCH
POWER PROPELLED
ROTARY LAWN MOWER
Model No.
917.377401
• Safety
• Assembly
• Operation
• Maintenance
• EspaSol
• Repair Parts
CAUTION:
Read and followall
Safety Rules and Instructions
beforeoperating this equipment
Sears, Roebuck and Co., Hoffman Estates, IL 60179
Warranty 2 Product Specifications 10
Safety Rules 2 Service and Adjustments 13
Assembly 4 Storage 14
Operation 5 Troubleshooting 15
Maintenance Schedule 9 Repair Parts 33
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 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 crank-
shafts and the failure to maintain the equipment according to the instructions con-
tained 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 pres-
ence controls to minimize the risk of injury.
Your unit is equipped with such 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
persons, especially small children and
pets.
• Use mower only as the manufacturer
intended and as described in this manual.
• Do not operate mower if ithas 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.
2
• 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 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
runwhile 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 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 ifyou
hit a foreign object. Follow the procedure
outlined above, then repair any damage
before restarting and operating you
mower.
• Do not change the governor settings or
overspeed the engine. Engine damage or
personal injury may result.
• Do not operate your mower if itvibrates
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 pullingthe mower
towards you. Mow across the face of
slopes, never up and down oryou might
lose your footing. Do not mow exces-
sively 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 mount-
ing bolts often to be sure they are
tightened properly.
• 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 wom bags.
Use only replacement bags that are
recommended by and comply with
specifications ofthe 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.
ACAUTION: 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 also
available at most Sears retail outlets and service centers. Most Sears stores can also
order repair parts for you, when you provide the model number of your lawn mower.
Some of these accessories may not apply to your lawn mower.
LAWN MOWER PERFORMANCE
CLIPPING DEFLECTOR
FOR REAR DISCHARGE LAWN MOWERS
GRASS CATCHERS
FOR
REAR DISCHARGE
LAWN MOWERS
MULCHER KITS
GRASS CATCHERS
FOR
SIDE DISCHARGE
LAWN MOWERS
Fl
STABIUZER
GAS CANS
LAWN MOWER MAINTENANCE
MUFFLERS AIR FILTERS SPARK PLUGS
BELTS BLADES BLADE ADAPTERS
WHEELS
ENGINE OIL
Read these instructions and this manual in • Remove all packing materials except
its entirety before you attempt to assemble
or operate your new lawn mower. Your
new lawn mower has been assembled at
the factory with the exception of those
parts left unassembled for shipping
purposes. All parts such as nuts, washers,
bolts, etc., necessary to complete the
assembly have been placed in the parts
bag. To ensure safe and proper operation MOWER
of your lawn mower, all parts and hardware TO UNFOLD HANDLE
you assemble must be tightened securely.
Use the correct tools as necessary to
ensure proper tightness.
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.
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.
HOW TO SET UP YOUR LAWN
IMPORTANT: Unfold handle carefully so
as not to pinch or damage control cables.
• Raise handles until lower handle section
locks into place in mowing position.
• Remove protective padding, raise upper
handle section into place on lower
handle and tighten both handle knobs.
• Remove handle padding holding
operator presence control bar to upper
handle.
4
• Your lawn mower handle can be
adjusted for your mowing comfort.
Refer to =Adjust Handle" in the Service
and Adjustment section of this manual.
Operatorpresencecontrolbar
Upperhandle
Liftup
position
Lower
handle
KNOW YOUR LAWN MOWER
READ THIS OWNER'S MANUALAND 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 HANOS
OR WARNING ON OFF ANO FEET AWAY
Operator presence control
control lever
Engine zone control cable
Starter handle control
Handle knob
Engineoilcap withdipstick
Mulcher door Drivecover
(on eachwheel)
i
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 Commis-
sion. The blade tums when the engine is running.
Operator presence control bar - mustbe
held down tothe handle to startthe engine.
Release to stop the engine.
Primer - pumps additionalfuel from the
carburetorto the cylinderfor use when starting
a coldengine.
Starter handle- used for starting the engine.
Drive control lever - used toengage power-
propelledforward motionof lawn mower.
Mulcher- allowsconversiontodischarge or
bagging operation.
5
Theoperationofanylawnmowercanresultin
foreign objectsthrown intothe eyes, whichcan
resultin severe eye damage. Always wear
safetyglasses or eye shieldswhile operating
your lawn mower or performingany adjust-
mentsor repairs. We recommend a wide
visionsafety mask over spectacles or standard
safety glasses.
HOW TO USE YOUR LAWN MOWER
ENGINE SPEED CONTROL
The engine speed was set at the factory
for optimum performance: Speed is not
adjustable.
ENGINE ZONE CONTROL
_CAUTION: Federal regulationsrequirean
engine controlto be installedon thislawn
mower in order to minimizethe riskofblade
contact injury.Do not under any circumstances
attemptto defeat the functionofthe operator
control. The blade turnswhen the engine is
running.
• Your lawn mower isequipped with an
operator presence control bar which
requiresthe operatorto be positioned
behind the lawn mower handle tostartand
operate the lawn mower.
DRIVE CONTROL
• Serf-prepellingis controlled by holdingthe
operator presence control bar down to the
handle and pushingthe drivecontrol lever
forward untilitclicks;then release the lever.
• Forward motion w_llstop when the operator
presence control bar is released. To stop
forward motionwithoutstopping engine,
release the operator presence control bar
slightlyuntilthe drivecontroldisengages,
Hold operator presence control bardown to
handle tocontinue mowing withoutself-
propelling.
• To keep drivecontrol engaged when turning
comers, pushdown on handle and liftfront
wheals offground while turninglawn
mower.
Operator presencecontrol Ddve
bar ._ "_\ t cQntml
To engage drivecontrol disengaged
TO ADJUST CUTI'ING HEIGHT
• Ra'_e wheels for low cutand lowerwheels
for highcut.
• Adjust cutting height to suityour require-
ments. Medium position is best for most
lawns.
• To change cutting height, squeeze adjuster
lever toward wheel. Move wheal up or
down to suit your requirements. Be sure all
wheels are in the same setting.
NOTE: Adjuster Lsproperly pos_oned when
plate tab inserts into hole in lever. Also, 9-
positionadjusters ('ifsoequipped) allow lever
to be pos_ between the plate tabs.
Lowerwheelsfor Plate tab
highcu . ever
Raise wheels for low
cut
NOTE: Your lawn mower has been
shipped ready for mulching operation. To
convert to discharging operation, you must
install the discharge deflector attachment
included with your mower.
TO INSTALL DISCHARGING
DEFLECTOR
• Lift door upward on it's hinge until the
deflector frame can be hooked over the
door mounting bracket as shown.
• Release the door to rest against
deflector frame.
• To return to mulching operation, reverse
the above steps and be sure door is in
closed position.
_.._,_X__--_ MuleherDoor
Deflector
__ Mounting
"x...__. Bracket
ACAUTION: Do not operate your lawn
mower without mulcher door in closed
position, discharge deflector in place, or
approved grass catcher in place.
6
BEFORESTARTINGENGINEOIL
Yourlawnmowerisshippedwithoutoilinthe
engine.
• Be sure mower is level and area aroundoil
fillisclean.
• Remove engine oilcap and fill tothe full line
on thedipstick.
• Use 20 ozs. of oil. For type end grade of oil
touse, see =ENGINE" in Maintenance
sectionof this manuel.
• Pour oilslowly. Do not over fill.
• Check oillevel before each use. Add oil if
needed. Filltofurlline on dipstick.
• To read properlevel, tightenengine oilcap
each time.
• Reinstallengine oilcap and tighten.
• Change the oilafterevery 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, clean, regular
unleaded gasoline with a minimum of 87
octane. Do not mix oil with gasoline.
Purchase fuel in quantities that can be
used within 30 days to assure fuel
freshness.
WARNING: Experience incrKT.atesthat alcohol
blendedfuels (called gasohol or usingethanol
or methanol) can attractmoisture which leads
toseparationand formationof acids during
storage. Acidic gas can damage the fuel
system of an enginewhile in storage. To avoid
engine problems, the fuel system shouldbe
ampSed before storage of30 days or longer.
Drain the fuel tank, startthe engine and let it
run untilfuel linesand carburetor are empty.
Use freshfuel nextseason. See Storage
Instructionsfor additionelinformation. Never
use engine or carburetor cleaner productsin
fuel tank or permanent damage may occur.
TO START ENGINE
• To start a cold engine, pus.hprimer 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.
Engine oilcap
cap
MOWING TIPS
• Under certain conditions, such asvery
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 clumps 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.
• For side discharge lawn mowers, cutting
in a counter-clockwise direction, starting
at the outside of the area to be cut,
spreads grass clippings more evenly
and puts less load on the engine. To
keep clippings off of walkways, flower
beds, etc., make the first cuts in a
clockwise direction.
• 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 clean of grass clippings and chaff.
This will help engine air flow and extend
engine life.
7
MULCHINGMOWINGTIPS
IMPORTANT:Forbestperformance,keep
mowerhousingfree of built-upgrass and
trash. See "Cleaning" in MAINTENANCE
sectionof this manual.
• The specialmulching blade willrecut the
grass clippingsmany times and reduce
them in size sothat as they fall ontothe
lawn they will disperse intothe grass and
not be noticed. A/so, the mulched grass will
biodegrade quicklyto providenutrientsfor
the lawn. Always mulch w_hyour highest
engine (blade) speed as this will provide the
best recuttingaclion 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 newiy
cut area will not be exposed to the direct
sun.
• ForI_ ra_lts, adjust_'zelawn mower
cut_ngheight sothat the lawn mower cuts
offonly thetop one-third ofthe grass blades.
Ifthe lawn isovergrownitwill be necessary
to raise the heightofcutto reduce pushing
effort and to keepfrom overloadingthe
engine and leavingdumps ofmulched
grass. For extremely heavy mulching,
reduce yourwidth ofcut byovedapping
previouslycutpath and mow slowly.
• Certain types of grass and grass conditions
may requirethat an area be mulched a
second timeto completelyhidethe
dippings. When deinga socondcut, mow
across or perpencr_ulartothe first cutpath.
• Change yourcuttingpattern from week to
week. Mow northtosouth one week then
change to east towest the nextweek. This
will helpprevent mattingand grainingofthe
lawn.
,_,_,_.€_,_'_'---3 Max.1/3
!_, ,,
8
CheckforLooseFasteners _
Clean/Inspect Grass Catcher
(ffEquipped) _ _ _
a Clean LawnMower
V,_ Claan Under Drive Cover
(Powet-Propened Mowers)
Check drivebek/pugeys
ER {power-Propelled Mowers) I_
Check/Sharpen/Replace Blade t_ 3
LubdcationChart ik/
Claan Battery/Recharge
IElectdc Start MowersI I_ V'4
E Check Engine Oil Level I_
N Change Engine Oil V't.2
G Clean Air Filter ll/z
| Inspect Muffler
a Clean or Replace Spark Plug
E RepleceAirFilterPaperCartddge If=
1. Ctmngemornoftenwhen ope_tlngtmdw, hHvy loado¢b highand:ierdreinsures.
2. Se=vicemo_ o(tenwhextoperating_ didyordu_y c_*_dilJon_
S- R_ blad_ mornolten_ _ Inaandyaoa
4 - Cha,se48 hoursat a_d ¢4u
GENERAL RECOMMENDATIONS
The warrantyon thislawn mower does not
cover itemsthat have been subjected to
operatorabuse or negligence. To receive full
value from the warranty,operator must
maintain mower as instructedinthis manual.
Some adjustments willneed to be made
periodicallyto properlymaintain your unit.
All adjustments inthe Service and Adjust-
ments section of this manual should be
checked at leastonce each season.
• Once a year, replacethe spark plug, clean
or replace airfilterelement and check blade
forwear. A new spark plug and clean/new
air filter element assures properair-fuel
mixtureand helpsyour engine runbetter
and lastlonger.
• Followthe maintenance schedule in this
manual.
BEFORE EACH USE
• Check engine oillevel.
• Check for loosefasteners.
LUBRICATION
Keep unitwell lubricated(See "LUBRICATION
CHART").
LUBRICATION CHART
(_) Wheel (_) Mulcherdoor
adjuster
(_) Brakespring
(_ bracket
Handle bracket
mountingpin
(_) Spray lubricante
(_) Referto MAINTINANCE "ENGINE"
SECTION.
IMPORTANT: Do notoilor grease plastic
wheel bearings. Viscouslubricantswilt attract
dust and dirt that willshortenthe lifeofthe self
lubricatingbearings. Ifyou feel they mustbe
lubricated,use onlya dry,powdered graphite
type lubricantsparingly.
9
PRODUCT SPECIFICATIONS
MODEL NUMBER 917.377401
SERIAL NUMBER
DATE OF PURCHASE
HORSEPOWER: 6.0
DISPLACEMENT: 11.5 CU. IN.
GASOLINE CAPACITY/TYPE: 1.5 QUARTS
UNLEADED REGULAR
OIL TYPE (API-SF/SG/SH): SAE 30 (ABOVE 32°1=)
SAE 5W-30 (BELOW 32°F)
OIL CAPACITY: 20 OZS.
SPARK PLUG(GAP: .030") CHAMPION RJ19LM OR J19LM
VALVECLEARANCE: 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 • Remove blade and attaching hardware
(bolt, lock washer and hardened
Always observesafety ruleswhen performing
any maintenance.
TIRES
• Keep tires free of gasoline, oil,or insect
controlchem'_ls which can harm rubber.
• Avoid stumps, stones, deep ruts,sharp
objects and other hazards thatmay 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 sidd. 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.
washer).
NOTE: Remove the blade adapter and
check the key inside hub of blade adapter.
The key must be in good condition to work
propedy. Replace adapter if damaged.
TO REPLACE BLADE
• 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.
• The recommended tightening torque is
35-40 ft. Ibs.
10
IMPORTANT:Bladeboltisgrade 8 heat
treated.
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.
Blade
Key adapter Crankshaft
keyway
Blade
Lockwasher
\
Blade shaft
bolt Hardened Trailing
washer edge Bladeadapter
GRASS CATCHER
(If purchased as an accessory)
• The grass catcher may be hosed with
water, but must be dry when used.
• Check your grass catcher often for
damage or deterioration. Through
normal use itwill wear. If catcher needs
replacing, replace only with a manufac-
turer approved replacement catcher.
Give the lawn mower model number
when ordering.
• If lubricant is required, use only Texaco
Starplex Premium Grease, part no.
750369. Do not substitute.
DRIVE WHEELS
Check front drive wheels each time before
you mow to be sure they move freely.
The wheels not tuming freely means trash,
grass cuttings, etc. are in the drive wheel
area and must be cleaned to free drive
wheels.
If necessary to clean the drive wheels,
check both front wheels.
• Remove hubcaps, hairpin cotters and
washers.
• Remove wheels from wheel adjusters.
• Remove any trash or grass cuttings from
inside the dust cover, pinion and/or drive
wheel gear teeth.
• Put wheels back in place.
• If after cleaning, the drive wheels do not
turn freely, contact your nearest
authorized service center.
ENGINE
LUBRICATION
Use only highqual'_ detergent oilrated with
API service dassh3cationSF, SG orSH.
Select the oil'sSAE viscos'_ygrade according
to yourexpected operatingtemperature.
SAE V_ GP,ADES
,c .30_ €*
"tEMPERATURE RANGE ANTICIPATED BEFORE NEXT OR.
NOTE: Althoughmulti-viscosityoils(5W30,
10W30 etc.) improve startingincoldweather,
these multi-viscosity oilswillresultin increased
oilconsumptionwhen used above 32°R
Check yourengine oillevel more frequently to
avoid possibleengine damage from running
low on oil.
Change the oilafterevery 25 hours of
operation orat leastonce a year ifthe lawn
mower isnot used for 25 hoursin one year.
GEAR CASE
• To keep your drive system working
preperly, the gear case and area around
the drive should be kept clean and free
of trash build-up. Clean under the drive
cover twice a season.
• The gear case is filled with lubricant to
the proper level at the factory. The only
time the lubricant needs attention is if
service has been performed on the gear
case.
11
Check the crankcase oillevel beforestarting
the engine and aftereach five (5) hours of
continuoususe. TK:jhtenoil plug securelyeach
time you checkthe oillevel.
TOCHANGEENGINEOIL
NOTE:Beforetipping 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 sudace:
• Tip lawn mower on its side as shown
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 runproperlyand may be
damaged by usinga dirtyair filter.
Replace the air filter overy year, more oftenif
you mow invery dusty,dirtycondC_ions.Do not
wash airfilter.
TO CHANGEAIR RLTER
• Remove the air tilter byturningcounter-
clockwiseto the stopand pull awayfrom
collar.
• Remove filterfrom inside of cover.
• Clean the inside of the cover and the collar
to remove any dirtaccumulation.
• Insertnew filterintocover.
• Put air filtercover and filterintocollar
aligningthe tab withthe slot.
• Push in on cover and turn clockwiseto
tighten.
Tum
counter-
clockwise
toremove
MUFFLER
Inspectand replace correded.muffier as it
could create a fire hazard and/or damage.
SPARK PLUG
Change your spark plug each year to make
your engine starteasier and runbetter. Set
spark plug gap at .030 inch.
CLEANING
IMPORTANT: For best performance, kiip
mower housing free of built-grass and trash.
Clean the underside of your mower after each
use.
ACAUTION: Disconnectspark plug wire
fromspark plug and place wire where itcannot
come in contact with the spark plug.
• Turn lawn mower on itsside. Make sure air
filterand carburetor are up. Clean the
underside of your lawnmower by scraping
to remove build-up ofgrass and trash.
• Clean engine often to keep trash from
accumulating. A dogged engine runshotter
and shortens engine life.
• Keep finished surfaces and wheels free of
all gasoline,oil,etc.
• We de not recommend usinga garden
hose toclean lawn mower unlessthe
electricalsystem, muffler, airfilter and
carburetor are covered to keep water out.
Water in engine can resultin shortened
engine life.
CLEAN UNDER DRIVE COVER
Clean under dnve cover at leasttwice a
season. Serape underside ofcover withputty
Imifeor similartoolto remove any build-upof
trash or grass on underside of drivecover.
Slot
Airfilter
"rum
Tab clockwise
Air filter cover to tighten
12
ACAUTION: Beforeperformingany
service and 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 cu'n'ING HEIGHT
See "TO ADJUST CUTTING HEIGHT" in
the Operation section of this manual.
DISCHARGE GUARD
The discharge guard, attached to the
discharge opening of your lawn mower, is
provided to prevent the possibility of injury
resulting from objects being thrown out of
the discharge opening into the operator
mowing position. Ifthe discharge guard
becomes damaged, itshould be replaced.
REAR DEFLECTOR
The rear deflector, attached between the
rear wheels of your mower, is provided to
minimize the possibility that objects will be
thrown out of the rear of the mower into
the operator mowing position. If the
deflector becomes damaged, it should be
replaced.
TO REMOVE/REPLACE DRIVE BELT
• Remove drive cover. Remove belt by
pushing down on gear case pulley and
rolling belt off it.
• Turn lawn mower on its side with
carburetor and fuel cap up.
• Remove blade.
• Remove debris shield.
• Remove belt from engine pulley on
crankshaft.
• Install new belt by reversing above
steps,
• AlWays use factory approved belt to
assure fit and long life.
cover
Push
down Iit
TO ADJUST HANDLE
Your lawn mower handle can be raised or
lowered for your mowing comfort. Four
(4) positions are available: high, medium
high, medium low and low. Handles are
shipped mounted in the medium low
position.
• To change from medium low to medium
high position, the upper and lower
handle sections will have to be turned
over.
• Remove the cable clips.
• Remove the controls and operator
presence control bar from the upper
handle.
• Remove the starter rope guide from the
upper handle.
• Remove hairpin cotters.
• Disconnect the lower handle from the
handle brackets.
•Tum the handle over and reassemble
the hairpin cotters that have been
removed.
• Reassemble the starter rope guide.
• Reassemble the controls and the
operator presence control bar to the
upper handle.
_CAUTION- The operator presence
control bar must pivot freely to permit
blade/brake engagement when control bar
is released. Do not overtighten the
fasteners holding the controls to the upper
handle.
• To change from medium low to high
position only the upper handle section
will have to be turned over.
• To change from medium low to low
position, only the lower handle section
will have to be turned over.
ShippingPosition
Mediumlow
Medium high
\
Low
ACAUTION; The operator presence
control bar must pivot freely to permit
blade/brake engagement when control bar
is released. Do not overtighten the
fasteners holding the controls to the
upper handle.
• To change from medium low to high
position only the upper handle section
will have to be turned over.
• To change from medium low to low
position, only the lower handle section
will have to be turned over.
\
Lowerhandle
Squeeze to
remove
ENGINE •
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 engine is running too fast or
too slow, take your mower to an authorized
service center for repair and adjustment.
CARBURETOR
Your carburetor has a non-adjustable fixed
main jet for mixture control; If your engine
does not operate properly due to sus-
pected carburetor problems, take your
lawn mower to an authorized service
center for repair and/or adjustment.
Hairpincotter
Handle bracket
Immediately prepare your lawn mower for
storage at the end ofthe season or ifthe unit
willnot be used for 30 days or more.
LAWN MOWER
When lawn mower isto be storedfor a period
oftime, clean itthoroughly,remove alldirt,
grease, leaves, etc. Store in a dean, dry area.
• Clean entire lawn mower (See "CLEANING"
in the Maintenance sectionof this manual).
• Lubricateas shown in the Maintenance
sectionof this manual.
• Be sure that all nuts,belts, screws, and pins
are securelyfastened. Inspect moving
parts for damage, breakage and wear.
Replace ifnecessary.
• Touch up all rusted or chipped paint
surfaces; sand lightlybefore painting.
HANDLE
You can foldyourlawn mower handle for
storage.
• Squeeze the bottomands of the lower
handle toward each other untilthe lower
hand_ dears the handle bracJ(et, then
move handle forward.
• Loosen upper handle mounting bolts
enough to allow upper handle to be folded
back.
IMPORTANT: When folding the handle for
storage or transportation, be sure to fold the
handle asshown oryou may damage the
control cables.
• When settingup yourhandle fromthe
storage position,the lower handle will
automatically lockintothe mowing position.
Lowerhandle
Squeeze to
remove
i"
Hairpin pin
cotter
Operatorpresencecontrol
bar
Upper handle
Foldforwardfor
storage •
Lower handle
Fold
backward
Mowing
position
14
ENGINE
FUELSYSTEM
IMPORTANT:It isimportanttoprevent gum
deposits from formingin essential fuel system
parts such as carburetor, fuel filter,fuel hose,
or tank during storage. Also, expedenoe
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.
• Drain the fuel tank.
• Start the engine and let itrun 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
aitemative 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.
ENGINE OIL
Drain oil(with engine warm) and replace with
clean engine oil. (See "ENGINE" in the
Maintenance sectionofthis manual).
CYLINDER
• Remove spark plug.
• Pour one ounce (29 ml) ofoilthrough spark
plug hole intocylinder.
• Pullstarterhandle slowlya few times to
distributeoil.
• Replace with new spark plug.
OTHER
• Do not storegasolinefrom one season to
another.
• Replace yourgasoline can if yourcan starts
to rust. Rust and/or dirt in your gasoline will
cause problems.
• If possible, store your unit indoors and cover
itto give protection from dust and dirt.
• Cover your unit with a suitable protective
ccver 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.
A, 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 CHART
PROBLEM
Does n_start
CAUSE
• Dirty airfilter.
• Out of fuel.
• Stale fuel.
• Water infuel.
• Spark plug wire is
disconnected.
• Bedsparkplug.
• Loose blade or broken blade
adapter.
• Control bar in released
position.
• Control bar defective.
CORRECTION
• Clean/replaco air filter.
• Fillfuel tank.
• Drain tank and re_llwith
fresh clean fuel.
• Drain fuel tank and
carburetorand refilltank
withfresh gasoline.
• Connect wire to plug.
• Replace spark plug.
• T_jhten blade boltor
replace blade adapter,
• Depress ccntrol bar to
handle.
• Replace controlbar.
15
TROUBLESHOOTING CHART
CAUSE
PROBLEM
Loss_pow_r
Poor cut- uneven
Excessive
vibration
Starter rope herd
to pull
Grass catcher
not filling (if so
equipped)
Hard to push
• Rear of lawn mower housing
or cutting blade dragging
in heavy grass
• Cutting too much grass
• Dirty air filter.
• Buildupofgrass, leaves,
and trash under mower.
• Toomuch oilin engine.
• Waildng speed too fast.
• Wom, bent or loose blade.
• Wheel heights uneven.
• Buildupof grass,leaves
and trash under mower.
• Worn,bent orlooseblade.
• Bentenginecrankshaft.
• Engine fiywheelbrake is on
when controlbar is released.
• Bent engine crankshaR.
• Blade adapter broken.
• Blade draggingingrass.
• Cuttingheight too low.
• Li{ton blade wom off.
• Catcher not ventingair.
• Grassistoo blgh or whee!
height istoo low.
• Rear oflawn mower
housing or blade dragging
ingrass.
• Grass catcher toofull.
• Handle height positionnot
rightfor you
CORRECTION
• Set to "Higher Cur'
position.
• Set to"Higher Cut"
position.
• Clean/replace air filter.
• Clean underside ofmower
housing.
• Check oillevel.
• Cut at slowerwall_ng
speed.
• Replace blade. T_ghten
bladebolt.
• Set all wheels at same
height
• Clean undersideof
mower housing.
• Replace blade Tighten
blade bolt
• Contact an authorized
sewice center
• Depress oontml bar to
upper handle before
pulling starter rope.
• Contact an authorized
service center.
• Replace blade adapter.
• Move lawn mower tocut
grass or to hard surface
• Raise cuttingheight.
•Rep_ceb_de.
• Clean grass catcher.
• Ra_ ct._'_r_jheight.
• Raise rear of lawn mower
ho_r_gone(1) se_ng
higher.
• Empty grass catcher.
• Adjusthandle height to
suit.
16
32
ROTARY LAWN MOWER - - MODEL NO. 917.377401
GEAR CASE ASSEMBLY PART NUMBER 702511
a7
I$
1
I
KEY PART
NO. NO. DESCRIPTION
1 17490416 Tapping Screw 1/4-20 x 1-114
2 137055X004 Engagement Bracket
3 137053 Shifter
4 57072 Seal
6 48373 Gear Case Halves Kit (Includes Key Nos. 4. 6, and 7)
7 77881 Bearing
8 137051 Worm Shaft
9 137074 Drive Shaft
10 57079 Hardened Washer
11 131484, Clutch Yoke
12 700343 Bushing
13 86447 Plug
14 137050 Helical Gear
15 750436X Clutch Jaw
16 750369 Grease
17 12000003 E-Ring
18 850848 Hi-Pro Key
19 81585X004 Spring Bracket
NOTE: All component dimensions given
in U.S. inches. 1 inch = 25.4 mm
33
=
0
/
34
HU fARY LAWN MOWER - MODEL NO. 917.377401
ol
KEY
NO.
1
3
5
6
7
8
g
10
12
18
19
22
23
24
25
27
28
29
33
35
36
38
39
40
41
42
43
44
45
46
48
PART
NO
165451X479
156577
153638
145793
131959
66426
51793
136376
157081X479
151667X479
151665X479
140540
750097
87584X004
151889
147286
154132
152124
150182
750085X007
146630
700331X004
701037
145935X004
62335
142748
150339
83923
751592
85463
149741
DESCRIPTION
UpperHandle
Zone ControlCable
RopeGuide
ControlBar
HandleDolt
Wire Tie
HairpinCotter
Handle Knob
LowerHandle
HandleBracketAssembly(Left)
HandleBracketAssembly(Right)
Rear Deflector
HexWasher Head Screw #10-24 x 1/2
DeflectorBracket
DischargeGuard
Hinge Rod
HousingBracket
TorsionSpring
Hubcap
WheelAdjustingBracket
Spacer
SelectorSpring
SelectorKnob
AxleArmAssembly
BellevilleWasher
ShoulderBolt
Wheel& Tire Assembly
HexNut
Locknut3/8-16
DangerDecal
Thread CuttingScrew 5/16-18 x3/4
KEY PART
NO, NO
49 63601
51 134612
52 150406
53 851084
54 850263
55 851074
56 152202
57 851514
58 129715
62 156516
63 85543
64 87677
68 ......
69 153350X479
70 153282X479
71 63601
- - 161058
- - 166053
DESCRIPTION
HexLocknut
Debris Shield
HexHead Thread RoilingScrew3/8-16
x 1-1/8
HexHead Screw 3/8-24 x 1-3/8 (Grd.
8)
HelicalLockwasher
HardenedWasher
Blade22=
BladeAdapter
DeflectorAssembly
LawnMower Housing(Incl,Ref. #46)
EnginePulley
HI-Pro Key#HP 505
Engine- (See Breakdown)Craftsman
Model 143.996004
SupportBrktHandle RH
SupportBrktHandleLH
LocknutKeps
WarningDecal(Not Shown)
Owner'sManual(English/Spanish)
Availableaccessoriesnot includedwithlawnmower:
71 33072 GrassCatcher
7133623 Gas Can (2.5 gal.)
7133500 FuelStabilizer
7133000 SAE30W Oil (20 oz,)
71 33316 MowerCover
\
36
ROTARY LAWN MOWER - MODEL NO. 917.377401
co
KEY
NO.
1
3
4
6
5
7
8
11
12
13
14
15
t6
18
PART
NO
146323
751152
158755
150495
146527
145212
150182
150349
12000058
137054
88080
88118
67725
701037
DESCRIPTION
ControlCableAssembly
Locknut 114-20
HexWasher HeadScrew
SpringRetainer
V-Belt
Hex Nut
Hubcap
Wheel& Tire Assembly
E-Ring
Pinion
OustCover
Felt Washer
Washer 1/2 x 1-1/2 x .134
SelectorKnob
#10-24 x 2-1/8
KEY PART
NO. NO
26
28
31
32
35
36
37
38
40
41
55
143603
154990
132010
137052
152018
702511
137090
63601
75192
152019
86012
DESCRIPTION
Pan HeadTapping Screw #10-24
DriveCover
Hex FlangeNut
DrivePulley
Wheel AdjusterAssembly (Left)
Gear Case Assembly
Spring
Locknut 1/4-20
Spring
Wheel AdjusterAssembly(Right)
DriveshaftCover
CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.996004
O--3"/0K
40O
120
18_ 19
178
126
119
125
46
296
"3O5
38
CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.996004
KEY PART
NO. NO. DESCRIPTION
1 37266
2 26727
6 33734
7 36557
12 36775
12A 36558
12B 36694
14 28277
15 30589
16 34839A
17 31335
18 651018
19 36281
20 32600
30 36776
40 40004
4O0O5
41 36070
36071
42 4OOO6
42 40007
43 20381
45 36777
46 32610A
48 27241
50 36778
52 29914
69 35261
70 34311E
72 30572
73 28833
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 3704-7
119 36787
120 36825
125 37288
126 37289
130 6021A
135 35395
150 31672
151 31673
KEY PART
NO. NO. DESCRIPTION
Cylinder (Incl. 2,20 & 150) 151A 40017
Dowel Pin 169 36783
Breather Element 172 36784
Breather Ass'y. (Incl. 6 & 12A) 174 30200
Breatber Tube 178 29752
Breather Cover & Tube (Incl. 182 6201
12B) 184 26756
Breather Tube Elbow
Washer 185 36785
Governor Rod (Incl. 14) 186 32653
Govemor Lever 189 650839
Governor Lever Clamp 191 36559A
Screw, Torx T-15, 8-32 x 19/64 • 195 610973
Extension Spring 207 34336
Oil Seal 216 33086
Crankshaft 223 650451
Piston, Pin & Ring Set (Std,) 224 36786
Piston, Pin & Ring Set (.010" 238 650932
OS) 239 34338
Piston & Pin Ass'y. (Std.) (Incl. 241 35797
43) 245 35066
Piston & Pin Ass'y, (.010 • OS) 250 35065
(Incl.43) 260 36980
Ring Set (Std.) 261 30200
Ring Set (.010" OS) 262 650831
Piston Pin Retaining Ring 275 36790A
Connecting Rod Ass'y. (Incl. 277 650988
46) 285 35000A
Connecting Rod Bolt 287 650926
Valve Lifter 290 29774
Camshaft (MCR) 292 26460
Oil Pump Ass'y. 298 28763
• Mounting Flange Gasket 300 36916
Mounting Flange (Incl. 72 thru 301 36246
83,306) 305 35647
Oil Drain Plug (Incl. 73) 306 36996
Drain Plug Gasket 307 35499
Oil Seal 309 650562
Governor Shaft 310 35648
Washer 313 34080
Govemor Gear Ass'y. (IncL 81 ) 370A 36261
Gevemor Spool 370C 37199
Screw, 1/4-20 x 1-1/4 • 370K 36695
Flywheel Key 380 640174
Flywheel 390 590737
Belleville Washer 400 36792B
Flywheel Nut
Solid State Ignition 416 36085
Spark Plug Cover
Screw, Torx T-15, 10-24 x 15/ 417 650821
16• 900 -- --
Ground Wire 900 ----
* Cylinder Head Gaske
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 Spring
Valve Spring Cap
Intake Valve Seal
* 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)
Terminal
Throttle Link
R.P.M. Adjusting Lever
Screw, 1/4-20 x 1•
• Intake Pipe Gasket
Screw, 10-32 x 49/64"
• Air Cleaner Gasket
Air Cleaner Collar
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 21164"
Fuel Line
Fuel Line Clamp
Screw, 10-32 x 35/64"
Fuel Tank (Incl. 292 & 301)
Fuel Cap
Oil Fill Tube
• ,,O"-Ring
-O"-Ring
Screw, 10-32 x 1/2*
Dipstick
Spacer
Lubrication Decal
Primer Decal
Starter Decal
Carburetor (Incl. 184)
Rewind Starter
Gasket Set (Incl. Items Marked
•)
Spark Arrestor Kit (Incl.
417)(Optional)
Screw, 10-32 x 1/2" (Optional)
Replacement Engine NONE
Replacement S/B 750796A,
order flora 71-999
RPM High 2900 to 3200
NOTE: This enginecouklhavebeen builtwith590694
starter
NOTE: AJIcomponent dimensions given in U.S. inches
1 inch = 25.4 mm
39
CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.996004
,p--_
KEY
NO.
B--
1
2
4
5
6
7
16
17
18
20
20A
25
27
28
29
30
31
35
36
36A
37
4O
44
47
48
48A
6O
PART
NO.
640174
631615
631767
631184
631183
64OO70
65O5O6
631807
651025
630766
64OO18
64OO53
631867
631024
632019
631028
631021
631022
36045A
640O8O
632766
632547
640175
27110A
630748
631027
631027
632760
DESCRIPTION
Carburetor(Incl.184 of EnginePartsList)
ThrottleShaft & LeverAssembly
Throttle Retum Spdng
• DustSeal Washer
• DustSeal (Throttler
ThrottleShutter
• Shutter Screw
FuelFitting
Throttle Crack Screw/IdleSpeed Screw
TensionSpring
IdleRestrictorScrew
IdleRest_ctorScrewCap
Roat Bowl
• Roat Shaft
Float
• FloatBowl"O"Ring
• InletNeedle, Seat, & Clip (Ind. 31)
SpringClip
PrimerBulb/RetainerRing
MainNozzleTube
CarburetorTube
• "O"Ring,Main Nozzle Tube
HighSpeed Bowl Nut
BowlNutWasher
• WelchPlug, IdleMixtureWell
• WelchPlug,AtmosphericVen
* WelchPlug
Repairkit (Incl.ItemsMarked')
40
CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.996004
O--2
KEY
NO.
1
2
3
4
5
6
7
8
11
12
13
PART
NO.
---- 590694
590599A
590600
59O696
590601
590697
590698
590699
590700
590695
590535
590701
DESCRIPTION
Recoil Starter
Spring Pin (Incl. 4)
Washer
Retainer
Washer
Brake Spring
Startar Dog
Dog Spring
Pulley & Rewind Spring
Ass'y.
Starter Housing Ass'y.
(40 degree grommet)
Starter Rope ( 98" X 9/
64" dia,)
Starter Handle
KEY
NO.
--D
3
6
7
8
11
12
13
14
PART
NO.
59O737
590740
590616
590617
590618A
590687A
590535
590701
590760
DESCRIPTION
Rewind Starter
Retainer
Starter Dog
Dog Spdng
Pulley & Rewind Spring
Ass'y
Starter Housing Ass'y
(40 degree grommet)
Starter Rope (Length 98"
x 9/64" dia.)
Starter Handle
Spring Clip
41
2
42
43
For the repair or replacement parts you need
delivered directly to your home
Call 7 am - 7 pro, 7 days a week
1-800-366-PART
(1-800-366-7278)
Para ordenar piezas con entrega a
domicilio - 1-800-659-7084
For in-house major brand repair service
Call 24 hours a day, 7 days a week
1-800-4-REPAIR
(1-800-473-7274)
Para pedir servicio de reparaci6n a
domicilio - 1-800-676-5811
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
When requesting sewice or ordering
parts, always provide the following
information:
• Product Type • Part Number
• Model Number • Part Description
%
SE ARS
America's Repair Speciatlsfs
166053 10.05.98 VB Printed in U.S.A.
