Craftsman 917377401 User Manual ROTARY MOWER Manuals And Guides 98120023

CRAFTSMAN Walk Behind Lawnmower, Gas Manual 98120023 CRAFTSMAN Walk Behind Lawnmower, Gas Owner's Manual, CRAFTSMAN Walk Behind Lawnmower, Gas installation guides

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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 follow all

Safety Rules and Instructions

before operating this equipment

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

Warranty 2Product Specifications 10

Safety Rules 2Service 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 it has been

dropped or damaged in any manner.

Always have damage repaired before

using your mower.

•Do not use accessory attachments that

are not recommended by the manufac-

turer. Use of such attachments may be

hazardous.

•The blade turns when the engine is

running.

PREPARATION:

•Always thoroughly check the area to be

mowed and clear it of all stones, sticks,

wires, bones, and other foreign objects.

These objects will be thrown by the blade

and can cause severe injury.

•Always wear safety glasses or eye

shields when starting and while using

your mower.

•Dress properly. Do not operate mower

when barefoot or wearing open sandals.

Wear only solid shoes with good traction

when mowing.

•Check fuel tank before starting engine.

Do not fill gas tank indoors, when the

engine is running or when the engine is

hot. Allow the engine to cool for several

minutes before filling the gas tank. Clean

off any spilled gasoline before starting the

engine.

• Always make wheel height adjustments

before starting your mower. Never

attempt to do this while the engine is

running.

•Mow only in daylight or good artificial

light.

OPERATION:

• Keep your eyes and mind on your mower

and the area being cut. Do not let other

interests distract you.

•Do not mow wet or slippery grass. Never

run while operating your mower. Always

be sure of your footing -- keep a firm

hold on the handles and walk.

•Do not put hands or feet near or under

rotating parts. Keep clear of the discharge

opening at all times.

•Always stop the engine whenever you

leave or are not using your mower, or

before crossing driveways, walks, roads,

and any gravel--covered areas.

•Never direct discharge of material toward

bystanders nor allow anyone near the

mower while you are operating it.

•Before cleaning, inspecting, or repairing

your mower, stop the engine and make

absolutely sure the blade and all moving

parts have stopped. Then disconnect the

spark plug wire and keep it away from the

spark plug to prevent accidental starting.

•Do not continue to run your mower if you

hit a foreign object. Follow the procedure

outlined above, then repair any damage

before restarting and operating 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 it vibrates

abnormally. Excessive vibration is an

indication of damage; stop the engine,

safely check for the cause of vibration

and repair as required.

• Do not run the engine indoors. Exhaust

fumes are dangerous.

•Never cut grass by pulling the mower

towards you. Mow across the face of

slopes, never up and down 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 of the manufacturer of your

mower.

•Always keep a sharp blade on your

mower.

•Allow engine to cool before storing in any

enclosure.

•Never store mower with fuel in the tank

inside a building where fumes may reach

an open flame or an ignition source such

as ahot 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.

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

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.

•Your lawn mower handle can be

adjusted for your mowing comfort.

Refer to =Adjust Handle" in the Service

and Adjustment section of this manual.

Operatorpresence controlbar

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

Engineoil cap withdipstick

Mulcher door Drive cover

(on each wheel) 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 - must be

held down to the handle to start the engine.

Release to stop the engine.

Primer - pumps additional fuel from the

carburetorto the cylinder for use when starting

a cold engine.

Starter handle- used for starting the engine.

Drive control lever - used to engage power-

propelledforward motionof lawn mower.

Mulcher- allows conversionto discharge or

bagging operation.

Theoperationofanylawnmowercanresultin

foreign objects thrown intothe eyes, which can

resultin severe eye damage. Always wear

safetyglasses or eye shieldswhile operating

your lawn mower or performing any adjust-

ments or 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 regulations require an

engine controlto be installedon thislawn

mower in order to minimize the riskof blade

contact injury.Do not under any circumstances

attempt to defeat the functionof the operator

control. The blade turns when the engine is

running.

•Your lawn mower is equipped with an

operator presence control bar which

requiresthe operator to be positioned

behind the lawn mower handle to start and

operate the lawn mower.

DRIVE CONTROL

• Serf-prepellingis controlled by holdingthe

operator presence control bar down to the

handle and pushingthe drive control lever

forward untilit clicks;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 drive control disengages,

Hold operator presence control bar down to

handle to continue mowing withoutself-

propelling.

•To keep drive control engaged when turning

comers, push down on handle and liftfront

wheals off ground while turninglawn

mower.

Operator presence control Ddve

bar ._ "_\t cQntml

To engage drive control disengaged

TO ADJUST CUTI'ING HEIGHT

•Ra'_e wheels for low cut and lower wheels

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 ('ifso equipped) allow lever

to be pos_ between the plate tabs.

Lower wheelsfor 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__--_ Muleher Door

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.

BEFORESTARTINGENGINEOIL

Yourlawnmowerisshippedwithoutoilinthe

engine.

•Be sure mower is level and area around oil

fillis clean.

•Remove engine oil cap and fill to the full line

on the dipstick.

•Use 20 ozs. of oil. For type end grade of oil

to use, see =ENGINE" in Maintenance

sectionof this manuel.

• Pour oilslowly. Do not over fill.

•Check oil level before each use. Add oil if

needed. Fillto furlline on dipstick.

•To read proper level, tightenengine oil cap

each time.

•Reinstallengine oilcap and tighten.

• Change the oil after every 25 hours of

operation or each season. You may need

to change the oil more often under dusty,

dirty conditions.

GAS

•Fill fuel tank. Use fresh, 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

blended fuels (called gasohol or usingethanol

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

ampSed before storage of 30 days or longer.

Drain the fuel tank, start the engine and let it

run untilfuel lines and carburetor are empty.

Use freshfuel next season. See Storage

Instructionsfor additionel information. Never

use engine or carburetor cleaner products in

fuel tank or permanent damage may occur.

TO START ENGINE

•To start acold 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 afew 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.

MULCHINGMOWINGTIPS

IMPORTANT:Forbestperformance,keep

mowerhousingfree of built-upgrass and

trash. See "Cleaning" in MAINTENANCE

section of this manual.

•The special mulching blade will recut the

grass clippingsmany times and reduce

them in size so that as they fall onto the

lawn they will disperse into the grass and

not be noticed. A/so, the mulched grass will

biodegrade quicklyto provide nutrientsfor

the lawn. Always mulch w_h your 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.

• For I_ ra_lts, adjust_'zelawn mower

cut_ng height so that the lawn mower cuts

off only the top one-third of the grass blades.

If the lawn is overgrownitwill be necessary

to raise the heightof cut to reduce pushing

effort and to keep from overloadingthe

engine and leavingdumps of mulched

grass. For extremely heavy mulching,

reduce your width of cut by ovedapping

previouslycut path and mow slowly.

• Certain types of grass and grass conditions

may require that an area be mulched a

second time to completelyhide the

dippings. When deinga socondcut, mow

across or perpencr_ularto the first cut path.

•Change your cuttingpattern from week to

week. Mow northto south one week then

change to east to west the next week. This

will help prevent mattingand graining of the

lawn.

,_,_,_.€_,_'_'---3 Max.1/3

!_, ,,

Checkfor LooseFasteners _

Clean/Inspect Grass Catcher

(ffEquipped) _ _ _

aClean LawnMower

V,_ Claan Under Drive Cover

(Powet-Propened Mowers)

Check drive bek/pugeys

ER {power-Propelled Mowers) I_

Check/Sharpen/Replace Blade t_ 3

LubdcationChart ik/

Claan Battery/Recharge

IElectdc Start MowersII_ V'4

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GENERAL RECOMMENDATIONS

The warranty on thislawn mower does not

cover items that have been subjected to

operator abuse or negligence. To receive full

value from the warranty,operator must

maintain mower as instructedinthis manual.

Some adjustments will need to be made

periodicallyto properlymaintain your unit.

All adjustments inthe Service and Adjust-

ments section of this manual should be

checked at least once each season.

•Once a year, replace the spark plug, clean

or replace air filterelement and check blade

forwear. A new spark plug and clean/new

air filter element assures proper air-fuel

mixture and helps your engine run better

and last longer.

•Follow the maintenance schedule in this

manual.

BEFORE EACH USE

•Check engine oil level.

• Check for loose fasteners.

LUBRICATION

Keep unitwell lubricated(See "LUBRICATION

CHART").

LUBRICATION CHART

(_) Wheel (_) Mulcher door

adjuster

(_) Brakespring

(_ bracket

Handle bracket

mountingpin

(_) Spray lubricante

(_) Referto MAINTINANCE "ENGINE"

SECTION.

IMPORTANT: Do notoil or grease plastic

wheel bearings. Viscous lubricantswilt attract

dust and dirt that will shortenthe lifeof the self

lubricatingbearings. If you feel they must be

lubricated, use only a dry,powdered graphite

type lubricantsparingly.

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 observe safety rules when 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 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 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.

IMPORTANT:Bladeboltis grade 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 Blade adapter

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 it will 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 oil rated with

API service dassh3cationSF, SG orSH.

Select the oil'sSAE viscos'_ygrade according

to your expected operatingtemperature.

SAE V_ GP,ADES

,c .30_€*

"tEMPERATURE RANGE ANTICIPATED BEFORE NEXT OR.

NOTE: Although multi-viscosityoils (5W30,

10W30 etc.) improve startingincold weather,

these multi-viscosity oils will resultin increased

oil consumption when used above 32°R

Check your engine oil level more frequently to

avoid possibleengine damage from running

low on oil.

Change the oil after every 25 hours of

operation orat least once a year ifthe lawn

mower is not 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 oil level before starting

the engine and after each five (5) hours of

continuoususe. TK:jhtenoil plug securely each

time you check the oil level.

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 asuitable container.

Rock lawn mower back and forth to

remove any oil trapped inside of engine.

•Wipe off any spilled oil on lawn mower

and on side of engine.

•Fill engine with oil. Fill only to the

"FULL" line on the dipstick. DO NOT

OVER FILL.

•Replace engine oil cap.

• Reconnect spark plug wire to spark

plug.

Container

AIR FILTER

Your engine will not run properlyand may be

damaged by usinga dirtyair filter.

Replace the air filter overy year, more oftenif

you mow invery dusty,dirty condC_ions.Do not

wash airfilter.

TO CHANGEAIR RLTER

•Remove the air tilter by turningcounter-

clockwise to the stopand pull away from

collar.

• Remove filterfrom inside of cover.

•Clean the inside of the cover and the collar

to remove any dirtaccumulation.

•Insert new filter intocover.

•Put air filtercover and filterinto collar

aligningthe tab withthe slot.

• Push in on cover and turn clockwiseto

tighten.

Tum

counter-

clockwise

to remove

MUFFLER

Inspect and replace correded.muffier 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.

CLEANING

IMPORTANT: For best performance, kiip

mower housing free of built-grass and trash.

Clean the underside of your mower after each

use.

ACAUTION: Disconnect spark plug wire

fromspark plug and place wire where it cannot

come in contact with the spark plug.

•Turn lawn mower on its side. Make sure air

filterand 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 dogged engine runs hotter

and shortens engine life.

•Keep finished surfaces and wheels free of

all gasoline, oil,etc.

•We de not recommend usingagarden

hose to clean lawn mower unless the

electricalsystem, muffler, air filter 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 least twice a

season. Serape underside of cover withputty

Imifeor similartool to remove any build-up of

trash or grass on underside of drive cover.

Slot

Air filter "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. If the discharge guard

becomes damaged, it should 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.

\Lower handle

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 of the season or ifthe unit

will not be used for 30 days or more.

LAWN MOWER

When lawn mower is to be stored for a period

of time, clean it thoroughly,remove alldirt,

grease, leaves, etc. Store in adean, dry area.

•Clean entire lawn mower (See "CLEANING"

in the Maintenance section of this manual).

•Lubricate as shown in the Maintenance

section of this manual.

• Be sure that all nuts, belts, screws, and pins

are securely fastened. Inspect moving

parts for damage, breakage and wear.

Replace if necessary.

•Touch up all rusted or chipped paint

surfaces; sand lightlybefore painting.

HANDLE

You can fold your lawn mower handle for

storage.

•Squeeze the bottom ands 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 setting up your handle fromthe

storage position,the lower handle will

automatically lockinto the mowing position.

Lower handle

Squeeze to

remove

Hairpin pin

cotter

Operatorpresence control

bar

Upper handle

Foldforwardfor

storage •

Lower handle

Fold

backward

Mowing

position

ENGINE

FUELSYSTEM

IMPORTANT:It is importantto prevent gum

deposits from forming in 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 it run until the fuel

lines and carburetor are empty.

•Never use engine or carburetor cleaner

products in the fuel tank or permanent

damage may occur.

• Use fresh fuel next season.

NOTE: Fuel stabilizer is an acceptable

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 section of this manual).

CYLINDER

•Remove spark plug.

• Pour one ounce (29 ml) of oilthrough spark

plug hole intocylinder.

•Pull starterhandle slowly a few times to

distributeoil.

• Replace with new spark plug.

OTHER

• Do not store gasolinefrom 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

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 still warm.

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 air filter.

•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.

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.

•Buildupof grass, leaves,

and trash under mower.

•Too much oil in 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 fiywheel brake is on

when controlbar is released.

•Bent engine crankshaR.

• Blade adapter broken.

•Blade dragging ingrass.

• Cuttingheight too low.

•Li{ton blade wom off.

• Catcher not ventingair.

•Grass is too blgh or whee!

height is too low.

•Rear of lawn 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 of mower

housing.

•Check oil level.

•Cut at slower wall_ng

speed.

•Replace blade. T_ghten

blade bolt.

• 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 to cut

grass or to hard surface

•Raise cuttingheight.

•Rep_ceb_de.

• Clean grass catcher.

•Ra_ ct._'_r_jheight.

•Raise rear of lawn mower

ho_r_g one(1) se_ng

higher.

• Empty grass catcher.

•Adjusthandle height to

suit.

ROTARY LAWN MOWER -- MODEL NO. 917.377401

GEAR CASE ASSEMBLY PART NUMBER 702511

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. 1inch = 25.4 mm

HU fARY LAWN MOWER - MODEL NO. 917.377401

KEY

NO.

PART

165451X479

156577

153638

145793

131959

66426

51793

136376

157081X479

151667X479

151665X479

140540

750097

87584X004

151889

147286

154132

152124

150182

750085X007

146630

700331 X004

701037

145935X004

62335

142748

150339

83923

751592

85463

149741

DESCRIPTION

UpperHandle

Zone ControlCable

RopeGuide

ControlBar

Handle Dolt

Wire Tie

HairpinCotter

Handle Knob

Lower Handle

Handle BracketAssembly(Left)

Handle BracketAssembly(Right)

Rear Deflector

Hex Washer Head Screw #10-24 x 1/2

DeflectorBracket

DischargeGuard

Hinge Rod

HousingBracket

TorsionSpring

Hubcap

Wheel AdjustingBracket

Spacer

SelectorSpring

SelectorKnob

AxleArmAssembly

BellevilleWasher

ShoulderBolt

Wheel & Tire Assembly

Hex Nut

Locknut3/8-16

Danger Decal

Thread CuttingScrew 5/16-18 x 3/4

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

Hex Locknut

Debris Shield

Hex Head Thread RoilingScrew 3/8-16

x 1-1/8

Hex Head Screw 3/8-24 x1-3/8 (Grd.

HelicalLockwasher

HardenedWasher

Blade22=

BladeAdapter

DeflectorAssembly

Lawn Mower Housing(Incl, Ref. #46)

Engine Pulley

HI-Pro Key #HP 505

Engine-(See Breakdown)Craftsman

Model 143.996004

SupportBrktHandle RH

SupportBrktHandle LH

LocknutKeps

WarningDecal(Not Shown)

Owner'sManual (English/Spanish)

Availableaccessoriesnot includedwithlawn mower:

71 33072 GrassCatcher

7133623 Gas Can (2.5 gal.)

7133500 Fuel Stabilizer

7133000 SAE 30W Oil (20 oz,)

71 33316 MowerCover

ROTARY LAWN MOWER - MODEL NO. 917.377401

KEY

NO.

PART

146323

751152

158755

150495

146527

145212

150182

150349

12000058

137054

88080

88118

67725

701037

DESCRIPTION

ControlCableAssembly

Locknut 114-20

Hex Washer Head Screw

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

143603

154990

132010

137052

152018

702511

137090

63601

75192

152019

86012

DESCRIPTION

Pan Head Tapping 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

296

"3O5

CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.996004

KEY PART

NO. NO. DESCRIPTION

137266

226727

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 enginecoukl havebeen builtwith590694

starter

NOTE: AJI component dimensions given in U.S. inches

1 inch = 25.4 mm

CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.996004

,p--_

KEY

NO.

B--

20A

36A

48A

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

632760

DESCRIPTION

Carburetor(Incl. 184 of Engine Parts List)

ThrottleShaft & LeverAssembly

Throttle Retum Spdng

• DustSeal Washer

• DustSeal (Throttler

ThrottleShutter

• Shutter Screw

Fuel Fitting

Throttle Crack Screw/Idle Speed Screw

TensionSpring

IdleRestrictorScrew

IdleRest_ctor ScrewCap

Roat Bowl

• Roat Shaft

Float

• FloatBowl"O"Ring

•Inlet Needle, Seat, & Clip (Ind. 31)

SpringClip

PrimerBulb/RetainerRing

MainNozzle Tube

CarburetorTube

•"O"Ring,Main Nozzle Tube

HighSpeed Bowl Nut

BowlNutWasher

•Welch Plug, IdleMixtureWell

• Welch Plug,AtmosphericVen

* Welch Plug

Repair kit (Incl. Items Marked')

CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.996004

O--2

KEY

NO.

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

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

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, 7days 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.

Craftsman 917377401 User Manual ROTARY MOWER Manuals And Guides 98120023

CRAFTSMAN Walk Behind Lawnmower, Gas Manual 98120023 CRAFTSMAN Walk Behind Lawnmower, Gas Owner's Manual, CRAFTSMAN Walk Behind Lawnmower, Gas installation guides

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