Craftsman 917.387321 Owner's manual

Brand: Craftsman

Model: 917.387321

Category: Lawnmowers

Type: Owner's manual

Owner's Manual

£RIIFTSMAMo

6.0HORSEPOWER

20" REAR DISCHARGE

ROTARY LAWN MOWER

Model No.

917.387321

• Safety

• Assembly

• Operation

• Maintenance

• Espafiol

• Repair Parts

CAUTION:

Read and follow all

Safety Rules and Instructions

before operating this equipment

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

Warranty 2 Product Spec'_calions 11

Safety Rules 2 Service and Adjustments 13

Assembly 4 Storage 14

Operation 6 Troubleshooting 15

Maintenance Schedule 10 Repair Parts 32

Maintenance 10 Parts Ordering Back Cover

L]MITED TWO YEAR WARRANTY ON CRAFTSMAN POWER MOWER

For two years from date of purchase, whenthis 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.

Ifthis 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 duflng normal use, such as rotarymower

blades, blade adapters, belts, air cleaners and spark pJug.

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

shafts and the failure to maintain the equipment according to the instructionscon-

tained inthe 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 whi[e

this product is in use in the United States.

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

vary from state to state.

SEARS, ROEBUCKAND CO., D/817 WA, HOFFMAN ESTATES, ILLINOIS 60179

TRAINING:

• Read this operator'smanual carefully.

Become familiarwiththe controlsand

knowhowto operate yourmower

properly.Learn howto 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 dear of all

persons, especially small ehi[dren 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.

A{ways have damage repaired before

using your mower.

• Do not use accessoryattachments that

are not recommended bythe manufac-

lurer. Use of suchattachments may be

hazardous.

• The btade tums when the engine is

running.

PREPARATION:

• Always thoroughly check the area to be

mowed and clear itof 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 withgood traction

whenmowing.

• 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 coolfor several

minutes before filling the gas tank. Clean

off any spilledgasoline before starting the

engine.

• Always make wheel height adjustments

before starting your mower. Never

attempt todo thiswhile the engine is

running.

• Mow onlyin daylightor good artificial

_ght.

OPERATION:

• Keep your eyes and mindon your mower

and the area being cut. Do not let other

interestsdistractyou.

• Do not mow wet or slipperygrass. Never

runwhile operatingyour mower. Always

be sure of yourfooting -- keep afirm

holdon the handles and walk.

• Do not put hands orfeet near orunder

rotating parts. Keep clear of the discharge

openingat alltimes.

• Alwaysstopthe engine whenever you

leave or are notusing your mower, or

beforecrossingdriveways,walks, roads,

and anygravel--covered areas.

• Never direct discharge of materia_toward

bystandersnorallow anyone nearthe

mower whileyou are operating it.

• Before cleaning, inspecting, or repairing

your mower, stopthe engine and make

absolutely sure the blade and all moving

partshave stopped.Then disconnectthe

spark plugwire and keep itaway from the

spark plugto prevent accidental starting.

• Do not continueto run your mowerifyou

hita foreign object. Follow the procedure

outlinedabove, then repair any damage

beforerestartingand operatingyou

mower.

• Do not change the governor settingsor

overspeed the engine. Engine damage or

personal injurymay result.

• Do not operate your mower if itvibrates

abnormally. Excessive vibration is an

indication of damage; stop the engine,

safely check for the cause ofvibration

and repair as required.

• Do not run the engine indoors. Exhaust

fumes are dangerous.

° Never cut grass by pullingthe mower

towards you. Mow aorosethe faoeof

slopes, never up and downoryou might

loseyour footing.Do notmow exces-

sively steep slopes.Use cautionwhen

operatingthe mower onuneven terrain

or .whenchangingdirections-- maintain

goodfooting.

• Never operateyour mowerwithout

proper guards,plates,grass catcheror

othersafety devices in place.

MAINTENANCE AND STORAGE;

• Check the blade and the engine mount-

ingboltsoftento be sure they are

tightenedproperly.

• Check allbolts,nutsand screwsat

frequent intervalsfor propertightnessto

be sure mowerisin safe working

condition.

• Keep all safetydevices in placeand

working.

• To reducefire hazard, keep the engine

free ofgrass, leaves or excessivegrease

and oil.

• Check grass catcher often for deteriora-

tion and wear and replace wornbags.

Use only replacement bags that are

recommended by and complywith

specifications ofthe manufacturer of your

mower.

• Always keep a sharp blade on your

mower+

• Allow enginetocoolbefore storing inany

enclosure.

• Never store mowerwithfuel inthe tank

insidea buildingwhere fumes may reach

an open flame or an ignition source such

as a hot water heater, space heater,

clothes dryer, etc.

CAUTION: Always disconnect spark piug

wire and place wire where it cannot

contact spark plug in order to prevent

accidental starting when se_ng up,

transporting, adjusting or making repairs.

WARNING

The engine exhaust from this product

contains chemicals known to the State of

CaJJfomiato cause cancer, birth defects,

or ether reproductive harm.

These accessorieswere availablewhenthis

lawn mower was produced.They are also

available at mostSears retailoutlets and

servicecenters. MostSears storescan also

LAWN MOWER PERFORMANCE

order repairpartsforyou, when you provide

the modelnumber ofyour lawn mower.

Some ofthese accessories may notapply

toyour lawn mower.

CUPPING DEFLECTOR

FOR REAR DISCHARGE LAWN MOWERS,

GRASS CATCHERS

FOR

REAR DISCHARGE

LAWN MOWERS

MULCHER,KFrS

GRASS CATCHERS

FOR

SIDE DISCHARGE

LAWN MOWERS

STABIL,IZER

GAS CANS

LAWN MOWER MAINTENANCE

MUFFLERS

BELTS BLADES

AIR FILTIERS

BLADE ADAPTERS WHEELS

SPAI_,,,K PLUGS,

ENGINE OIL

IMPORTANT: This cuttingmachine is

capable ofamputating hands and feet and

throwing objects. Failure to observethe

following safety instructionscould resultin

seriousinjury or death.

Safety standards requireoperator pres-

ence controls to minimize the risk ofinjury.

Your unitis equipped withsuch controls.

Do not attempt to defeat the functionofthe

operator presence controlsunder any

circumstances.

Read these instructionsandthismanualin its

enl_retybeforeyou attemptto assemble or

operate your new lawnmower.Your new lawn

mower hasbeen assembled atthe factory

withthe exceptionof thoseparts left

unassembledfor shipping purposes AI[parts

such as nuts, washers, bolts,etc., necessary

tocompletetheassemblyhavebeen placedin

theparts bag.Toensuresafe andproper

operationofyourlawnmower,allpartsand

hardwareyouassemblemust betightened

securely. Usethe correcttoolsasnecessaryto

ensureproper tightness.

TO REMOVE LAWN MOWER FROM

CARTON

• Remove loose partsincludedwith mower.

• Cutdown twoend comers of carton and lay

endpanel downflat.

• Remove allpacking materials except

paddingbetween upper and lower handle

andpadding holdingoperator presence

control barto upperhandIe

• Roll lawnmower outof cartonand check

cartonthoroughIyfor addrtionalloose parts.

HOW TO SET UP YOUR LAWN

MOWER

TO UNFOLD HANDLE

IMPORTANT: Unfold handles carefully so

as not to pinch or damage control cables.

- Raise handles untillower handle section

locks into place in mowing pos_on.

° Remove protective padding, raise upper

handle section intoplace on lower

handles and tighten both handle knobs.

• Remove handle padding holding

operator presence control bar to upper

handle.

• Your lawn mower handle can be

adjusted for your mowing comfort. Refer

to "Adjust Handle" in the Service and

Adjustment section of this manual.

control bar

Lift up

Lower

handJe

Mowing

position

TO INSTALL AI-I'ACHMENTS

Your lawn mower was shipped ready to be

used as a mulcher. Toconvert to begging

or discharging:

• Open rear doorand remove mulcher

plug. Store mulcher plug in a safe place.

• You can now installcatcher or opt_onat

clippingdeflector.

° To return to mulching operation,install

mulcher plug into discharge opening of

mower.

Mulcherplug

CAUTION: Do not run your lawn mower

without mulcher plug in place or approved

clipping deflector or grass catcher in

place. Never attempt to operate the lawn

mower with the_'rear door removed or

propped open,

KNOW YOUR LAWN MOWER

READ THIS OWNER'S MANUALAND SAFETY RULESBEFORE OPERATING YOUR LAWN

MOWER. Compare theillustrationswith your lawnmower tofamiliarize yourseffwiththe

locationof various controls and a_ustments. Save this manuaJfor future refer.

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

product. Learn and understand their meaning.

CAL'q'tON ENGINE ENGINF- FAST 8;LOW CHOKE FUEL OIL DANGER, KEEP HANDS

OR WARNING ON OFF AND FEET AWAY

Operator presence control bar

Engine zone controJcab]e

Handle

Grass catcher

Air filter

MuJcher plug

Engine oil cap

with dipstick

Lawnmowerhousing

Wheeladjuster

(oneachwheel)

iii

MEETS CPSC SAFETY REQUIREMENTS

Sears rotarywalk-behind power lawnmowers conform tothe safetystandards of theAmerican

NationalStandards Inst_uteand the U.S.Consumer ProductSafety Commission, The blade

turnswhentheenqine is runnin,_. ,,,

Operator Presence ControlBar- must be

helddown tothe handle tostarttheengine.

Releaseto stop theengine.

Primer - pumps addilJonalfuelfrom the

carburetorto the cylinderfor usewhen staring

acoldengine.

i i

Starter Handle- used for starting the engine.

Mulcher Plug - locatedatthe discharge

openingmustbe removedwhenconvertingto

baggingordischargingoperation.

The operationof anylawnmowercan resuttin

foreignobjectsthrownintothe eyes,whichcan

res_ insevereeye damage. Always wear

safetyglassesoreye shieldswhiteoperating

yourlawn moweror performinganyadjust-

meritsor repairs,We recommenda wide

visionsate_ maskoverthesr_ctactesor

standardsafetyglasses.

HOW TO USE YOUR LAWN MOWER

ENGINE SPEED CONTROL

The engine speed was set at the factory

for optimumperformance. Speed is not

adjustable.

ENGINE ZONE CONTROL

CAUTION: Federal reguIations require

an enginecontroltobeinstalledonthis

lawn mower in order to minimize the risk

of blade contact injury. Do not under any

circums'_tnces attempt to defeat the

function of the operator control. The blade

turns when the engine isrunning.

• Your lawnmower is equippedwithan

operator presence controlbarwhich

requiresthe operatortobe posHoned

behindthe lawnmowerhandletostartand

operatethe lawnmower.

TO ADJUST cLrn3NG HEIGHT

• Raisewheelsfor low cutand lower wheels

for highcut.

• Adjust cutting heighttosuit your require-

merits. Medium position isbest formost

lawns.

• To change cuffing hek3ht,squeezeadjuster

levertoward wheel Movewheel up or down

tosuityour requirements, Besure allwheels

are inthe same set,rig.

NOTE: Adjuster is property positionedwhen

platetab insertsinto hole in lever.ALso,9-

posifion adjusters (ifso equipped)_ow lever

to be pos'_ionedbetween the plate tabs.

Lower Wheels for High Cut

_ Lever

Raise Wheels for Low Cut

TO ATTACH GRASS CATCHER

• Closetheflip lid. Eliplid mustbe dosed

whgeoperatinglawn mower

• Liftthe reardoor onthe mowerhousingand

placethegrasscatcherframe ontothe

formedtabsonthe reardoorhingebracket.

• The grasscaltlcherisse_re dtothelawn

mowerhousingwhen the mardoor _s

lowered ontothe grasscatcherframe.

CAUTION: Do not runyour Iawnmower

withoutdippingdeflector orapproved grass

catcherinplace.Never attempttooperatethe

lawn mowerwiththe reardoorremovedor

proppedopen.

Hinge

bracket

Grass catcher

Formed

tabs

TO EMPTY GRASS CATCHER

• To removegrasscatcher, releaseoperator

presencecontrol barto stopengine.

• Liftup reardoor andremove the grass

catcher by the handle.

NOTE: Do not drag the bag when emptying;

itwilIcauseunnecessarywear.

BEFORE STARTING ENGINE

OIL

Yourlawnmower issh_ed withoutoil inthe

engine.

• Besuremowerislevelandarea aroundoil

fillisclean.

• Removeengineoilcapw/dipstickandfilIto

thefullI_neon the d'_ostick.

• Use20 ozs.of oil.Fortypeand gradeofoil

to use,see "ENGINE"in Maintenance

sectionofthismanual.

• Pour oilslewty.Do notoverfill

• Checkoil level beforeeachuse. Add oiIif

needed. RI[to fulllineon d_s_ck.

• To read proper level,tighten engineoil cap

each time.

• Reinstallengineoilcapandtighten.

° Changethe oilaftereve]y25 hoursof

operationoreach season. Youmayneed

tochangetheoilmore oftenunderdusty,

dirtyconcr_ons.

GAS

• Fillfuel tank. Use fresh, clean, regular

unleaded gasolinewith a minimumof 87

octane. (Use of leaded gasoline wig

increasecarbon and lead oxidedeposits

and reduce valve life). Do not mix oil

with gasoline. Purchase fuel in quanti-

ties that can be used within30 days to

assure fuel freshness.

IMPORTANT: WHEN OPERATING IN

TEMPERATURES BELOW 32°F(0°C), use

fresh, clean winter grade gasoline to help

insure good cold weather starting.

WARNING: Experience indicates that

alcohol blended fuels (caited gasohol or

using ethanol or methanol) can attract

moisture which leads to separation and

formation of acids dudng 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 productsin the fuel

tank or permanent damage may occur.

CAUTION: Fillto bottom of gas tank filler

neck. Do notoverfill. Wipe off any spilled

oil or fuel. Do not store,spill or use

gasoline near an open flame.

TO START ENGINE

• Tostarta coldengine,pushprimerfive(5)

times beforetnjingto start.Useafirmpush.

ThisstepiSnotusuallynecessarywhen

starthgan enginewhichhasalready runfor

afew minutes.

• Holdoperator presencecontrol bardownto

the handleand pullstarterhandlequickly.

Do not allowstarter ropeto snapback.

• To stopengine,releaseoperatorpresence

control bar.

NOTE: Incoolerweatheritmaybe necessary

torepeatpdmingsteps.Inwarmerweather

over priming maycause floodingand engine

willnot start. Ifyou dofloodengine,wait a few

minutesbeforeattempting tostartand do not

repeat primingstep_

MOWING TIPS

• Under certaincond'_ons,suchas very tall

grass,it maybe necessaryto raise the

heightofcuttoreducepush_geffortandto

keepfromoverloadingtheengineand

leavingdumpsof grassclippings.

• For extremelyheavycutting,reducethe

width ofcut and raisethe rear ofthe lawn

mower housingone (1)wheel adjuster

sett_g higherthan the frcntforbetter

discharge ofgrass.

• When using a reardischarge lawn mower in

moist,heavy grass,clumpsofcutgrass

may not enterthegrass catcher.Reduce

groundspeed (pushingspeed)ancVorrun

the lawn mowerover thearea asecond

time.

• Ifa trailofgrassclippingsisleftonthe right

side ofa rearc_schargeIawnmower, mow

in a clockwisedirectionwitha smalloverlap

tocollecttheclippingsonthe nextpass.

• Keeptopofenginearoundstarterclearand

eleanof grassclippingsandchaff.Thiswill

helpengineairflowandextendenginelife.

° Pores in clothgrasscatcherscanbecome

filledwithdirtanddust withuseand

catcherswillcollectless grass.To prevent

this,regularlyhosecatchersoffwithwater

and let drybefore using.

MULCHINGMOWINGTIPS

IMPORTANT:Forbestperformance,•

keep mower housing free of built-up grass

and trash. Clean UNDERSIDE OF

MOWER HOUSING after each use. See

"Cleaning" in MAINTENANCE sec'don of

this manual.

• The special mulchingbladewillrecutthe

grassclippingsmanytimes andreduce

them in size sothat as theyfagontothe

lawnthey witldisperse intothe grass and

notbe noticed. Also,the mulched grasswill

biedegrade quicklyto provide nutrientsfor

the lawn, A_waysmulch withyourhighest

engine (blade)speed as this w=llprovide the

best recut_ng actionof1heblades.

• Avoid curlingyour lawnwhenitiswet.Wet

grasstendsto formdumps andinterferes

withthe mulching amen. The besttime to

mow your lawn Lsthe earlyaJtemoon.Atthis

time the grasshasdriedand thenewlycut

areaw111notbe exposed to thedirectsun.

• For bestresults,adjustthe _awnmower

cullingheightso thatthelawn mowercuts

offonlythetopone-thirdofthe grassblades.

Ifthelawn isovergrownit willbe necessary

to raisethe heightof cutto reducepushing

effoffand tokeep from overloading_ -

engineand leavingclumpsof mulched

grass.Forextremelyheavy mulching,

reduceyour wid_ of cut, mow slowiyand

raisethe rearof the lawnmower one wheel

adjustersettinghigherthanthe front.

• Certaintypesofgrassandgrassconditions

may requirethatan area be mutcheda

secondtimetocompletelyhidethe

clippings.Whendoinga secondcut,mow

acrossorperpendicularto the firstcutpath.

• Changeyourcuttbgpatternfromweekto

week.Mow northtosouthone weekthen

changetoeastto westthenextweek.This

will helppreventmattingand grainingofthe

lawn.

1/3

FELL FN DATES /___#"_._ _._ _,_ _,_-,I,

AS YOU COMPLETE /_/_f-SER--___V

REGULAR SERV}CE ICE DATES

Oheck for Loose Fa.,.steners _ I/

CJean/]nspect Grass Catcher

(If Equipped) V t I_

M Clean La_-i Mower I,/ I_

O Clean Under Drive Cover

{Power-Prope|ted Mowers} ik/

Check drive be_fle_

E {Power:P'ropelled Mowers) II/

g CheckJSharpen/RepTace BJade IV/'=

i Lubr_catio_ Chart tf

CIea.n Battery/Rechmge

'I_e_ st_ M_e_ 1 v' v'4 ......

E c_ E._e o, Leve| !y" i

N Chan@eEr_neOil _,_'_

] [nsl_ct Muffler

N Clean orRepla_ Spark Plug !/"

E Replace Air P_iter Paper C_tddge V'2

I - Ch_lge rnor_ _en when _p_mtmg un_r = h_ load or _ high R._b[ent templra_ums.

2 - _ mote o_en when o_:_em1_g in d_y or du_ _or_s.

4 - Charge 48 houm _t end of l_son.

GENERAL RECOMMEND/_glONS

The warrantyon thislawn mowerdoesnot

coveritemsthathavebeensubjectedto

operatorabuseor neg[igence.Toreceivefull

valuefromthe warranty,operatormust

maintain mower asinstructedinthismanual.

Some adjustments will need to be made

periodicallytoproperly maintain yourun_

Alladjustmentsinthe Service andAdjustments

sectionofthis manual should be checked at

]east once each season.

• Oncea year,replace thesparkplug,replace

airfilterelement and checkbladefor wear.A

newsparkplugand ciearv'newair filter

elementassures properair-fuelmixture and

helpsyourengine runbetterand last longer.

•FoIIow the maintenanceschedule in this

manual

BEFORE EACH USE

• Check engine oil level.

• Checkfor loose fasteners.

LUBRICATION

Keep un'_weI[lubricated (See"LUBRICATION

CHAFrr).

LUBRICAT]ON CHART

Wheel

adjusters

(_ Brake spring

bracket

,gine oil

C) Rear (3_)Handle bracket

door

hinge mounting pin

(_) SPRAY LUBRICANT

_) SAE30 MOTOROL REFERTO

ENGINE - MAINTENANCE SECTION.

IMPORTANT: Donot oilor greaseplastic

whee!bearings.Viscouslubricantswill

attractdust and dirtthat w_lshortenthe

lifeofthe self lubricatingbeatings.Ifyou

feelthey must be lubricated,use onlya

dry,powderedgraphitetype lubricant

sparingly.

PRODUCT SPECIFICATIONS

MODEL NUMBER 917.387321

SERIAL NUMBER

DATE OF PURCHASE

HORSEPOWER: 6.0

DISPLACEMENT." 11.5 CU. IN.

GASOLINE CAPACITY/TYPE: 1.5 QUARTS

UNLEADED REGULAR

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

SAE 5W-30 (BELOW 32°F)

OIL CAPACITY: 20 OZS.

SPARK PLUG(GAP: .030") CHAMPION RJ!9LM OR J19LM

VALVE CLEARANCE: INTAKE: .004 - .008

EXHAUST: .004 - .008

SOLID STATE IGNITION

AIR GAP: .0125 IN.

BLADE BOLT TORQUE: 35-40 FT. LBS.

• The model and serial numbers will be found on a decal attached to the rear of the

lawn mower housing.Record both serial number and date of purchase in space

provided above.

LAWN MOWER

Alwaysobservesafety ruleswhen performing

any maintenance.

TIRES

• Keep_ free ofgasoline, oil,or insect

controlchemicalswhich can harmrubber.

• Avoid stumps, stones, deep ruts,sharp

objectsand other hazards that may cause

tire damage.

BLADE CARE

For bestresults,mower bIade mustbekept

sharp. Replace bent or damaged blades.

TO REMOVE BLADE

• Disconnectspark plug wke from spankplug

andplacewire where itcannot comein

contactwith spark plug.

° Turn lawn mower on its side. Makesure air

filterandcarburetor areup.

• Use a wood blockbetween bladeand

mower housing toprevent bladefrom

turningwhenremoving bladeboll

• Protectyourhands with gloves and/orwrap

bladewithheavycloth.

• Removeblade bolt bytuming counter-

clockwise.Use a 9/t 6" box or open-end

wrench.

• Remove bladeand attachinghardware

(bolt,lockwasherandhardened washer).

NOTE; Removethe bladeadapter and

checkthekey inside hubofbladeadapter.

The key mustbe ingoodconditionto work

properly.Replace adapter ifdamaged.

TO REPLACE BLADE

o Position the blade adapter onthe engine

crankshaft.Be surekey in adapterand

keyway in crankshaft arealigned.

• Positionblade on the bladeadapter

aligningthe two (2) holes inthe bladewith

the raised lugs onthe adapter.

• Be sure thetrailing edge is uptoward the

engine.

• tnstatlthe bladebott v4ththe [ockwasher

and hardened washer intoblade adapter

andcrankshaft.

° Use blockof wood between bladeand

Iawnmower housing andlighten the blade

belt,turningctodevise.

• The recommended _ghteningtorque is35-

40ft. Ibs.

IMPORTANT: Blade bolt is grade 8 heat

treated.

NOTE: We donot recommendsharpening

blade- butifyoudo, besuret_ btadeis

balanced.

TO SHARPEN BLADE

Care shouldbe takentokeepMe blade

balanced.An unbalancedbladewillca:use

eventualdamage tolawnmowerorengine.

• The bladecan besharpenedwith a file or

on a grading wheel Donotattemptto

sharpen while on themower.

• To checkblade balance, d_e anail intoa

beam or wall. Leave about oneinchof_e

straight nail exposed. Race centerholeof

blade overthe head ofthenail.Ifbladeis

balanced, it should remainin ahorizontal

pos_on. Ifeither endof the blademoves

downward, sharpenthe heavyend untilthe

blade is balanced.

GRASS CATCHER

* The grass catchermay be hosedwith

water,butmust be d_ whenused.

• Check yourgrasscatcher oftenfor damage

ordeterioration.Through normaluseit wilt

wear.Ifcatcherneedsreplacing,replace

onlywithamanufacturer approved

replacementcatcher.Givethe lawnmower

model numberwhenordering.

Blade Crankshaft

adaptor

BLoltckwas/her H_ardened\ "_B_ade'sOha_ k

washer Trailing adaptor

edge

ENGINE

LUBRICATION

Use only high quality detergent oil rated

with API service classification SF, SH or

SG. Select the oil'sSAE viscosity grade

according to your expected operating

temperature.

NOTE: Although multi--viscosity oils

(5W30, 10W30 etc.) improve startingin

cold weather, these multi---viscosity oils

will result in increased oil consumption

when usedabove 32°F. Check your

engine ell level more frequently to avoid

possible engine damage from running low

on oil.

Change the oilafterevery25 hoursofopera-

tionorat least oncea year if the lawn mower

is not used for 25 hours in one year.

Check the crankcase oil level before

startingthe engine and after each five(5)

hours of continuous use. _ghten oil plug

securelyeach time you check the oil level.

TO CHANGE ENGINE OIL

NOTE: Before tipping lawnmower to drain

oil,drain fuel tank by running engine until

fuel tank isempty.

• Disconnect spark plug wire from spark

plug and place wire where it cannot

come in contact withspark plug.

• Remove engine oil cap; lay aside on a

clean surface.

° T_p 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.

• Fil!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 wilt not run properly and may

be damaged by using a dirtyair filter.

Replace the air filter every year, more

often ifyou mow invery dusty,dirty

cond_ions. Do not wash air filter.

TO CHANGEAIR FILTER

• Remove the air filter cover by turning

counterclockwise to the stop and pull

away from coIfar.

• Remove filter from inside of cover.

• Clean the inside ofthe cover and the

collar to remove any dirt accumulation.

• Insert new filter into cover.

• Put air filtercover and filter intocollar

aligningthe tab with the slot.

• Push in on cover and turn clockwiseto

Slot

Tum

counter--

:lock'wiseto

remove

to tighten

Air filtercover

MUFFLER

Inspect and replace corroded muffler as it

could create a

fire hazard and!or damage.

SPARK PLUG

Change your spark plug each year to

make your engine start easier and run

better. Set spark pluggap at .030 inch.

CLEANING

IMPORTANT: For best performance,

keep mower housing free of built--up

grass and trash. Clean underside of

mower housing after each use.

CAUTION: Disconnect spark plugwire

from spark plug and placeowirewhere it

cannot come in contactwith the spark

plug.

• Turn lawn mower on itsside. Make sure

air filter and carburetor are up. Clean the

underside of your lawn mower by

scraping to remove build.--upof grass

and trash.

• Clean engine oftento keep trash from

accumulating. A cloggedengine runs

hotterand shortensengine life.

• Keep finished surfaces and wheelsfree

ofa[I gasoline, oil, etc.

• We DO NOT recommend usinga

garden hose to clean lawn mower

unless the electdcEdsystem, muffler, air

filter and carburetor are coveredto kee_:

water out.Water in engine can resultin

shortened engine life.

CAUTION: Before performingany

service or adjustments:

• Release contro! bar.

• Make sure the blade b.ndall moving

parts have completelystopped.

• Disconnect spark plugwire from

spark plug and placewhere itcannot

come in contact with plug.

LAWN MOWER

TO ADJUST cu'n'ING HEIGHT

See "TO ADJUST CUrFING HEIGHT" in

the Operation section of this manual.

REAR DEFLECTOR

The rear deflector, attached between the

rear wheels of your lawn mower, is

provided to minimize the possibility that

objects will be thrown out the rear of the

lawn mower into the operator's mowing

position.

If the rear deflector becomes damaged, it

should be replaced.

TO ADJUST HANDLE

Your lawn mower handle can be raised or

lowered for your mowing comfort. Four

(4) positions are available: high, medium

high, medium towand low. Handles are

shipped mounted inthe medium low

position.

• To change from medium low to medium

high position,the upper and lower

handle sectionswillhave to be turned

over.

• Remove the cable clips.

• Remove the controlsand operator

presence controlbar from the upper

handle.

• Remove hairpin cotters.

• Disconnect the lower handle from the

handIe brackets.

• Turn the handle over and reassemble

the hairpin cotters that have been

removed.

• Reassemble the controls and the

operator presence control bar to the

upper handle.

CAUTION: The operator presence control

bar must pivotfreely to permit blade brake

engagement when control bar is released.

Do not over tighten 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.

• Tochangefrom medium towto low

position, only the lower handlesection

will have to be turned over.

Me_um Low

ShippingPosition

MediumHigh

High__. Low

LowerHandle

;::o:o,o\\ r

Handle

Bracket

HairpinClip

ENGINE

CARBURETOR

Your carburetor has a non-adjustablefixed

mainjet for mixture control. If your engine

does not operate properlydue to sus-

pected carburetor problems, take your

lawn mower to an authorized service

center for repair or adjustment.

ENGINE SPEED

Your engine speed has been factoryset.

Do not attempt to increase engine speed

or it may result inpersonal injury. If you

believe that the engine is running too fast

or too slow, take your lawn mower to an

authorized service center for repair and

adjustment.

Immediatelyprepareyourlawn mowerfor

storageat theend of the season orifthe unit

willnotbe usedfor30 days or more.

LAWN MOWER

When lawn mower isto bestored for a period

of time, cleanit thoroughly,remove alldirt,

grease,leaves,etc.Store in adean, dryarea.

• Clean entirelawn mower (See"CLEANING"

in the Maintenance section ofthis manual).

• Lubricateasshown in the Maintenance

sectionofthis manual.

• Besurethatall nuts,bo_, screws, andpins

are securelyfastened. Inspect moving

partsfor damage, breakage andwear.

Replaceifnecessary.

• Touch up all rustedor chipped paint

surfaces;sand lightlybeforepainting.

HANDLE

Youcanfold your lawn mower handlefor

storage.

• Squeezethebottomendsofthelower

handletoward each other un'dlthelower

handleclearsthe handle bracket,then

movehandle forward.

• Loosen upper handle mounting bolts

enough to allow upper handleto befolded

back.

IMPORTANT: When foldingthe handle

forstorage ortransportation,be sureto

foldthehandleas shown or you may

damage thecontrolcables.

• Whensettingupyourhandlefromthe

storageposillon,thelowerhandlewill

automaticallylockintothemowingpos'_on.

Lower Handle

Handle

Squeeze to ford

Hairpin

Cotter

OperatorPresence

ControlBar _ _,_

y+,,

_ _ MOWi._ Pos'tlo.

FoldForward

ForStorage LowerHandle

ENGINE

FUEL SYSTEM

IMPORTANT: It is important to prevent

gum deposits from forming in essential

fuel system parts such as carburetor, fuel

filter,fuel hose, or tank during storage.

Also, 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.

• Drain the fuel tank.

• Start the engine and let it rununtilthe

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: Fuelstab_T,Terisan acceptable

alternativeinminimizingthe formationoffuel

gum depositsduring storage. Add stabilizerto

gasolinein fueltank or storage container.

Always followthe mix ratiofound onstabiF_zer

container. Run engineat ]east10minutes

after adding stabilizerto allow the stabiFr_erto

reachthe carburetor. Do not drain the gas

tankand carburetorif using fuel stabi_zer.

ENGINEOIL

Drainoil(withengine warm)and replacewith

cleanengineoil. (See "ENGINE" inthe

Maintenancesectionofthismanua]).

CYLINDER

• Removesparkplug.

,. Pouroneounce (29 ml)'of oilthrough-spark

plug hole intocylinder.

• Pugstarterhandle slowly afew times to

distributeoil.

• Replacewith newspark plug.

OTHER

• Do not storegasoline from oneseason to

another.

• Replaceyour gasolinecanifyour can starts

to rust. Rust and/ordirt in your gasolinewill

causeproblerns.

- Ifposs!]_e,store your unit indoorsand cover

itto g'rveprotectionfrom dust anddirt.

• Cover your unitwith a suitableproteclive

coverthat does not retain moisture. Donot

useplastic. Plasticcannotbreathewhich

allows condensationtoform and v@lcause

yourunittorust.

IMPORTANT: Never cover mower while

engine and exhaust areas are still warm.

CAUTION: Neverstore thelawn mowerwith

gasolinein thetank inside a buildingwhere

fumes may reach an openflame orspark.

Allow the engineto cool beforestoring inany

enclosure.

TROUBLESHOOTING CHART

PROBLEM

Doesnot start

CAUSE

• Dirtyair filter.

• Out offuel.

• Stale fuel.

• Water in fuel.

• Spark ptugwire is

disconnected.

• Bad sparkplug.

• Loose blade orbroken blade

adapter.

• Control bar in released

pes_on,

• Controlbardefective.

CORR ECTION

• Clean/replace airfilter.

• Fillfuel tank.

• Draintank and refillwith

fresh cleanfuel.

• Drain fueltank and

carburetorand refilltank

with fresh gasoline.

• Connect wireto plug.

• Replace sparkplug.

• _g_en bladebolt or

replaceblade adapter.

• Depresscontrol bar to

handle.

• Replace control bar.

PROBLEM

Loss of power

TROUBLESHOOTING CHART

CAUSE

• Rearoflawnmowerhousing

orcutt_gblade dragging

inheavygrass.

* Cuttingtoomuch grass

Poor cut- uneven

Excessive

vibration

;Starter mpe hard

to pull

Grass catcher

notfilling ('dso

equipped)

Hard to push

• Dirtyair filter.

• Buildupofgrass, leaves,

andtrashundermower.

• Toomuchoil inengine.

• Walkingspeedtoo fast.

• Worn, bentorlooseblade.

• Wheel heightsuneven.

* Buildupofgrass, leaves

and _rashundermower.

• Worn,bentor looseblade.

• Bent engine crankshaft.

* EngineflywheeIbrakeison

whencontrolbaris released.

• Bentengine crankshaft.

• Bladeadapter broken

• Bfadedragging ingrass.

• Cuffing heighttoo low.

• Liftonbladewornoff.

• Catcher notventing air

• Grass istoo highorwheel

height istoo low.

* Rear of lawn mower

housJngorbladedragging

in grass.

• Grass catcher toofuIL

• Hand[eheight positionnot

rightforyou

CORRECTION

• Setto"HigherCuf'

position.

• Setto'Higher Cut"

position.

• Cleanlreplaceairfilter.

• Clean underside of mower

housing.

• Check oillevel.

• Cut atsIowerwalking

speed

• Replaceblade.-Rghten

bladebolt.

• Set allwheelsat same

height

• Clean undersideof

mowerhousing.

• Replaceblade.Tighten

bladebolt.

• Contactan authorized

service center.

* Depresscontrol barto

upperhandlebefore

pulling starterrope.

* Contact anauthorized

servicecenter.

• Replacebladeadapter.

• Movelawnmower toc_

grassorto hardsurface

tostartengine.

• Raisecuttingheight

• Replaceblade.

• Clean grasscatcher.

• Raisecuttingheight

• Raiserear of lawn mower

housing one (1) setting

higher.

• Empty grasscatcher.

• Adjust handle heightto

suit.

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CRAFTSMAN ROTARY LAWN MOWER - - MODEL NO. 917.387321

KEY

NO.

PART

NO.

86902

16545tX479

150424

132001

157081 X479

131959

66426

51793

136376

156577

750097

850733X004

63601

147613

700357;<479

150050

54583

700063X479

88652

700363X479

14.4875X479

140657

161757)(479

161756X479

15OO78

700325×007

146630

128415

87877

700331X004

145935X004

62335

142748

752063

KEY PART

DESCRIPTION NO. NO. DESCRIPTION

Control Bar 42 83923

Upper Handle 43 77400

Mulcher Plug 44 85463

Rope Guide 45 150406

Lower Handle 46 161857

Handle Bolt 47 751592

Wire Tie 50 700938X479

Hairpin Cotter 51 851084

Handle Knob 52 850263

Engine Zone Centre] Cable 53 851074

Hex Washer Head Screw 10-24 x 112 54 145106

Up-Stop Bracket 55 850977

Keps Locknut 1/4-20 58 144748

Rear Door Assembly' Kit 57 154870

Back Ptate 5B ......

Self Tapping Screw 10-24 x 5/8

Hex Head Tapping Screw I/4-20 x 1/2 59 144747

Rear Baffle 60 74760612

Hinge Screw 1/4-20 x 1-1/4 61 750913X004

Side Baffle 62 61651

Discharge Baffle 63 88348

Rear Deflector 64 148442

Handte Bracket Assembly (Left) 65 57143

Handle Bracket Assembly (Right) - - 161058

Screw 5t16o18 x 3/4 - - 165485

Wheel Adjusting Bracket

Spacer

Pop Rivet

Serector Knob

Selector Spr_ng

Axle Arm Assembly

Bel[evllle Washer

Shoulder Bolt

Wheel and Tire Assembly

Hex Range Locknut

Hubcap

Danger Decal

Hex Head Thread Rolling Screw 3/8-16 x 1

Lawn Mower Housing (Incl. Key #18, 22, 24, 44, 50)

Loeknut 3/8+16

Front Baffle

Hex Head Machine Screw 3f5=24 x 1-3/8 (Grd. 6)

Helical Lockwasher 3/8

Washer

Blade 20"

BTadeAdapter

Tube Frame

Grass Bag

Engine - (See Breakdown) Craftsman

Mode[ 143.986002

Throat Frame

Bolt

Axle Arm

Washer

Wheel .,

Wave WasP;dr

Warning Decal (Not Shown)

Owner's Manual

Available accessories not Included with lawn mower.

71 33623 Gas Can (2.5 gal.)

71 33500 Fuel Stabilizer

71 33000 SAE 30W Oil (20 oz.)

71 3.3417 Dust Shfeld

33318 Mower Cover

71 33303 Chute Deflector

CRAFTSMAN 4.-CYCLE ENGINE MODEL NUMBER.,,, ,,143.986002

_251

135

275.

298

.CRAFTSMA..N4-CYCLE E,,NGINE .... MODELNUMBER143.98600.2,

KEY PART

NO. NO. DESCRIPTION

I 36774

2 26727

6 33734

7 36557

12 36775

12A 36558

128

36694

28277

30589

34839A

31335

651016

36281

32600

36793

40004

40005

36070

36071

40006

4O0O7

20381

36777

46 32610A

48 27241

50 36778

52 29914

69 35261

70 38995

72 38083

75 27897

80 305"74A

81 39590A

82 30591

83 30588A

86 650488

89 61 I004

g0 611112

92 650816

93 656816

100 344438

101 610118

•_03 651OO7

110 37047

119 36787

120 36625

125 36779

125 36780

126 36781

126 36782

t30 6021A

135 35395

150 35991

I5I 31673

151A 40017

KEY

NO.

PART

NO. DESCRIPTION

Cylinder (Incl. 2 & 20) 169 36783

Dowel Pin 172 36784

Breather Element 174 30200

Breather Ass'y. (Incl. 6 & 12A) 178 29752

Breather Tube 182 6201

B_eather Cover & Tube 184 26756

(Incl. 128)

BreatherTube Elbow 185 36785

Washer 186 32653

Governor Rod (Incl. 14} I89 650839

Goverr_orLever 191 36559

Governor Lever C!emp 195 610973

Screw, Torx T-15, 8-32 _ 19/64" 207 34336

Extension Spring 216 33086

Oil Seal 223 650451

Crankshaft 224 36786

Piston, Pin & Ring Set (Std.) 238 650932

Piston, Pin & Ring Set 239 34336

(,010" OS) 241 35797

Piston & Pin Ass'y. (Std.) 245 35066

(Incl. 43) 250 35065

Piston & Pin Ass'y. (,010 ° OS} 260 36980

(Inc_.43) 261 30200

Ring Set (S_.) 262 650831

Ring Set (.010" OS) 275 36790

Piston Pin Retaining Ring 277 650988

Connecting Rod Ass'y. 286 35000A

(IneL 46} 287 650926

Connecting Rod Bolt 290 29774

Valve Litter 292 6460

Camshaft (MCR) 296 28763

Oll Pump Ass'y. 300 36916

Mounting Flange Gasket 301 36246

Mounting Range 305 35647

(incl. 72 thru 83) 306 36996

Oil Drain Plug 307 35499

Oil Seal 309 650562

Governor Shaft 3t0 35648

Washer 313 34060

Governor Gear Ass'y. (lnc}. 81) 370A 36261

Governor Spool 370C ,3696"1

Screw, 1/4-20 x 1-1/4" 370K 36695

Flywheet Key 380 640026

Rywhee[ 390 590694

BeUevil[e Washer 400 36792A

Flywheel Nut

SoLid State Ignition 416 36085

Spark P_ugCover

Screw, Torx T-15, 417 650760

10-24x 15/16 = 900 ---

Ground Wire 900 ----

• Cylinder Head Gasket

Cy|indar Head

Exhaust Valve (Std.} 0ncL 151}

Exhaust Valve (I/32" OS)

(IncL 151)

Intake Valve (Std_) {Incl. 151)

Intake Valve (1/32" OS)

(Incl. 15t)

Screw, 5116-I8 x t-1/2"

Resistor Spark Plug (RJlgLM)

Valve Sp_ing

Valve Spring Cap

Intake Valve Seal

Valve Cover Gasket

Valve Cover

Screw, 4 0-24 x 9/16"

Nut & Lock Wast_er, 1/4-28

Screw, 1/4-28 x7/8"

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, 1t4-20 x 1"

Intake Pipe Gasket

Screw, 10-32 x 49/64"

Air Cleaner Gasket

A{rC{ea,ner Collar

Air Cleaner Filter

Air Cleaner Cover

Blower Housing

Screw, I0-24 x 9/16"

Screw, 1/4-20 x 1/2"

Mumer

Screw, 1/4-20 x 2-5/16"

Starter Cup

Screw, 8-32 x 21/64"

Fuel Line

Fuel Line Clamp

Screw, 10-37.x 35f64"

Fuel Tank (ind. 292 & 301)

Fuel Cap

Oil Fill Tube

"O"-Ring

Screw, 10-32 x 1/2"

Dipstick

Spacer

Lubrication Decal

Primer Decal

Starter Decal

Carburetor (tn{;[. 184}

Rewind Starter

GasKet Set

([nci. Items Marked "in Notes)

Spark Arrestor Kit

(IncL 417)(Optional)

Screw, 8-32 x 3/8" (Optiona_

Replacement Engine NONE

Replacernent S/B 750795A,

order from 71-999

RPM Higt_2900 to 32.00

NOTE: This engine cot_ld have been buitt v-_th

590737

starter.

NOTE: All component dimensions _ven in UoS.

inches

1 inch = 25.4 mm

CRAFT,,SMAN 4-CYCLE ENGINE ...... MODEL NUM,B,,,E,R143.986002

KEY

NO.

20A

PART

NO. DESCRI PTION

640026

631615

631767

631164

631183

631036

650506

631775

650417

630766

640027

640053

631867

631024

632019

631028

631021

631022

36045A

632735

632547

640028

27110

630748

631027

Carburetor (Incl. 184 of Engine Parts List)

ThrotSe Shaft & Lever Assembly

Throttle Return Spring

Dust Seal Washer

Dust Seat (Throttle)

Throttie Shutter

Shutter Screw

Fuel Fitting

Throttle Crack Screw!tdle Speed Screw

Tension Spdng

Idle Restdcter Screw

Id[e Restdetor Screw Cap

Float Bowl

Float Shaft

Float

Float Bowl "O" Ring

Inlet Needle, Seat, & CIip (Incl. 31}

Sprblg Clip

Pdmer Bulb/Retainer Ring

Main Nozzle Tube

"(3" Ring, Main NezzJe Tube

High Speed Bow[ Nut

Bow[ Nut Washer

Welch Plug, Idle Mixture Well

Welch Plug, AtrnospherIc Vent

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Craftsman 917.387321 Owner's manual

Brand: Craftsman

Model: 917.387321

Category: Lawnmowers

Type: Owner's manual

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