Craftsman 37763 Manuel utilisateur

Owner's Manual

CRAFTSMAN+

6.75 HORSEPOWER

21" REAR DISCHARGE

POWER PROPELLED

ELECTRIC START

ROTARY LAWN MOWER

Model No.

917.377631

•Safety

•Assembly

•Operation

•Maintenance

•Espa_ol

•Repair Parts

CAUTION:

Read and follow all

Safety Rules and Instructions

before operating this equipment

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

W_rrat_

S_fety_lules

A_ern_ly

Ol_era|on

M_intel_ance Sihelule|

M_intelhanle

2 Product Specifications 11

2 Service and Adjustments 14

4 Storage 14

6 Troubleshooting 16

10 Repair Parts 34

10 Parts Ordering Back Cover

ON CRAFTSMAN POWER MOWER

purchase, when this Craftsman Lawn Mower is maintained,

according to the operating and maintenance instructions inthe

repair free of charge any defect in material or workmanship.

is used for commercial or rental purposes, this warranty

the date of purchase.

worn during normal use, such as rotary mower

:3 ;,air cleaners and spark plug.

•operator abuse or negligence, including bent crank- _

shafts arld, the failure to 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, ROEBUCKAND CO., D/817 WA, HOFFMAN ESTATES, ILLINOIS 60179

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.

•Dress properly. Do not operate mower

when barefoot or wearing open sandals.

Wear only solid shoes with good trac_tion

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 fillingthe 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 pads. 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 govemor settings or

overspeed the engine. Engine damage or

personal injurymay 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_e fame_f--

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 mounting

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 a hot water heater, space heater,

clothes dryer, etc.

CAUTION: Always disconnect spark plug

wire and place wire where it cannot

contact spark plug in order to prevent

accidental starting when setting up,

transporting, adjusting or making repairs.

WARNING

The engine exhaust from this product

contains chemicals known to the State of

C_);fornia to cause cancer, birth defects, or

oth_rreproductive harm.

Theseaccessorieswereavailablewhenthislawnmowerwasproduced.Theyar_so

availableatmostSearsretailoutletsandservicecenters.MostSearsstores can also oerc_

repair partsfor you,when you providethe model number of your lawn mower. Some of these

accessoriesmay notapplytoyour lawn mower.

LAWN MOWER PERFORMANCE

CUPPING DEFLECTOR

FOR REAR DISCHARGE LAWN MOWERS

GRASS CATCHERS

FOR

REAR DISCHARGE

LAWN MOWERS

MULCHER KITS

GRASS CATCHERS

FOR "

SIDE DISCHARGE

LAWN MOWERS +-

STABlUZER

GAS CANS

LAWN MOWER MAINTENANCE

MUFFLERS AIR FILTERS

BELTS BLADES BLADE ADAPTERS WHEELS

SPARK PLUGS

ENGINE OIL

Read these instructions and this manual in

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 s_ipping

purposes. To ensure safe and proper

operation of your lawn mower, all parts

and hardware you assemble must be

tightened securely. Use the correct tools

as necessary to ensure proper tightness.

All parts such as nuts, washers, bolts, etc.,

necessary to complete the assembly have

been placed in the parts bag.

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.

• Remove all packing materials except

padding between upper and lower

handle and padding holding operator

presence control bar to upper handle.

Roll lawn mower out of carton and check

carton thoroughly for additional loose

pads.

HOW TO SET UP YOUR LAWN

MOWER ......... -.....

TO UNFOLD HANDLE

IMPORTANT: Unfold handle carefully so

as not to pinch or damage control cables.

• Raise lower handle section to operating

position and squeeze the bottom ends of

lower handle towards each other until

the pin in handle can be inserted into

one of the three height adjustment

holes.

•Remove protective padding, raise upper

handle section into place on lower

handle and tighten both handle knobs.

•Remove any packing material from

around control bar.

•Your handles may be adjusted for your

mowing comfort. Refer to Service and

Adjustments section of this manual.

Operator presence

control,bar

Upper handle

Lower

handle

3-position

Handle

adjustment

bracket

Mowing

position

Handle

TO INSTALL ATTACHMENTS

Your lawn mower was shipped ready to be

used as a mulcher. To convertto4N_jgirlg

or discharging:

•Open rear door and remove mulcher

plug. Store mulcher plug in a safe

place.

•You can now install catcher or optional

clipping deflector.

•To retum to mulching operation, install

mulcher plug into discharge opening of

mower.

Mulcher Plug

TO PREPARE BATTERY

NOTE: Your battery must be charged

before you can start your lawn mower.

•Disconnect engine battery connector

(male) from battery connector (female)

•Connect battery charger connector

(male) to battery connector (female).

• Plug battery charger into 110 volt A.C.

outlet.

• Leave battery charger connected for 24

hours before starting your engine for the

first time.

•After charging, connect engine connec-

tor (male) to battery connector (female).

Your engine has an integral alternator for

partial charging. Connect your battery

charger to charge battery as required.

IMPORTANT: The engih-e_alt-ei'fi_f6r-will

not charge a discharged battery.

At the end of the mowing season the

battery should be charged for 48 hours to

protect the battery during winter storage.

CAUTION: Always disconnect the engine

connector (male) from the battery

connector (female) to prevent accidental

starting when transporting or storing your

lawn mower after the season.

READ THIS OWNER'S MANUALAND SAFETY RULES BEFORE OPERATING YOU'_,WN

k4OWER. Compare the illustrations with your lawn mower to familiarize yourself with the

kx_ationof 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 HANDS

OR WARNING ON OFF AND FEET AWAY

<NOW YOUR LAWN MOWER

Ddve control

Electric start key_

Operator presencecontrol

Starter handle Cable clip

Grass catcher

Wheel adjuster

lever

Gasoline cap

Primer

Engine oil cap w/dipstick

Housin.c

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 turns when the engine is running,

Operator presence control -must be

held down to the handle to start the

engine. Release to stop the engine.

Primer - pumps additional fuel from the

carburetor to the cylinder for use when

starting a cold engine.

Starter handle -used for starting the

engine.

Drive control bar - used to engage

power-propelled foward motion of lawn

mower.

Mulcher plug - Located at the rear

discharge opening must be removed when

converting to bagging operation.

Electric start key - used for starting the

engine.

The ()peration ofany lawn mowercan resultin

foreign objectsthrown intothe eyes, which can

resultin severe eye damage. Alwayswear

safety glasses or eye shieldswhile operating

your lawn mower or performingany adjust-

mentsor repairs. We recommend awide

visionsafety mask overthe spectaclesor

standardsafetyglasses.

HOW TO USE YOUR LAWN MOWER

ENGINE SPEED

The engine speed was set at the factory for

optimum performance. Speed isnotadjust-

able.

ENGINE ZONE CONTROL

CAUTION: Federal regulationsrequire an

engine controlto be installedon this lawn

mower in order to minimize'the riskofblade

contact injury.Do notunder any circu_

attempt to defeat the function of the operator

control.The bladetums when the engine is

running.

• Your lawn mower is equipped with an

operator presence controlbar which

requiresthe operator tobe positioned

behind the lawn mOwer handle tostart and

operate the lawn mower.

TO ADJUST CUTTING HEIGHT

•Allfour wheals are adjusted by a single

lever.

•Pull adjuster levertoward wheel. To raise

mower, move lever forward to desired

position.To lower mower, move the lever

toward the rear.

LowerWheels forhighcut

Acluster

Lever

Raise Wheels for low cut

TO OPERATE DRIVE SYSTEM

•To startforward motion, liftdrive controlbar

upto handle.

•To stopforward motion, release drive

control bar.

IMPORTANT: Always keep drive controlbar

fully engaged against handle when in use.

Drive

Operatorpresence controlbar

controlbar--

Toengage_'_ Drivecontrol

drive control desengaged

TO ATTACH GRASS CATCHER

•Liftthe rear door ofthe lawn mower and

place the grasscatcher frame hooksintothe

slotsofthe rear door.

•The grasscatcher issecured tothe lawn

mower housingwhen the rear door is

lowered onto the grass catcher frame.

CAUTION: Do not run your lawn mower

withoutclippingdeflectoror approved grass

catcher in place. Never attempt to operate the

lawn mower withthe rear door removed or

propped open. Rear door

slots Grass

handle

Catcher frame

hook

TO EMPTY GRASS CATCHER

• Liftup on grasscatcher using the frame

handle.

•Remove grasscatcher with clippingsfrom

under lawn mower handle.

•Empty d'_opingsfrom bag using both frame

handle and bag handle.

NOTE: Do not drag the bag when emptying;

itwillcause unnecessary wear.

BEFORE STARTING ENGINE__

OIL

Your lawn mower isshipped withoutoilinthe

engine.

•Be sure mower is leveland area around oil

fillis dean.

•Remove engineoilcap w/dipstickand fill to

the full lineonthe dipstick.

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

to use, see =ENGINE" in Maintenance

sectionof this manual.

•Pour oilslowly. Do notover fill.

•Check oillevelbefore each use. Add oilif

needed. Filltofull lineon dipstick.

•To read properlevel,tightenengine oilcap

each time.

•Reinstallengine oilcap and tighten.

•Change the oilafter every 25 hoursof

operationor each season. You may need

to change the oilmore often underdusty,

dirtyconditions.

GAS

•Fill fuel tank. Use fresh, clean, regular

unleaded gasoline with a minimum of 87

octane. (Use of leaded gasoline will

increase carbon and lead oxide deposits

and reduce valve life). Do not mix,oil

with gasoline. Purchase fuel in quanti-

ties that can be used within 30 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 starling.

WARNING: Experience indicates that

alcohol blended fuels (called gasohol or

using ethanol or methanol) can attract

moisture which leads to separation and

formation of acids during storage. Acidic

gas can damage the fuel system of an

engine while in storage. To avoid engine

problems, the fuel system should be

emptied before storage of 30 days or

longer. Drain the gas tank; start the

engine and let it run until the fuel lines and

carburetor are empty. Use fresh fuel next

season. See Storage Instructions for

additional information. Never use engine

or carburetor cleaner products in the fuel

tank or permanent damage may occur.

CAUTION: Fill to bottom of gas tank filler

neck. Do not overfill. Wipe off any spilled

oil or fuel. Do not store, spill or use

gasoline near an open flame. Gasolinefiller

Engineoil cap

w/dipstick jcap

TO START ENGINE

•To start a cold engine, push primer five

(5) times before trying to start. Use a

firm push. This step is not U_Jall_ -

necessary when starting an engine

which has already run for afew minutes.

•Hold operator presence control bar

down to the handle.

•Tum electric start key clockwise to crank

engine.

IMPORTANT: Do not crank engine more

than five continuous seconds between

each time you try to start. Wait 5 to 10

seconds between each attempt.

•To start engine using the auxiliary

starter handle, follow the steps above.

Exchange the use of the start key for-_

starter handle. 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 youdo

flood engine wait a few minutes before

attempting to start and do not repeat

priming steps.

MOWING TIPS

•Under certain conditions, such as very tall

grass,it may be necessary to raisethe

heightof cut to reduce pushingeffortand to

keep fromoverloadingthe engine and

leavingclumps of grass clippings.

• For extremely heavy cutting,reduce the

width of cut by overlapping previously cut

path and mow slowly.

•When using a rear discha_ la_WTrnowerin

moist, heavy grass, dumps of cut grass

may not enter the grass catcher. Reduce

groundspeed (pushing speed) and/or run

the lawn mower overthe area a second

time.

•Ifa trailof clippingsislefton the rightside of

arear discharge mower, mow in a clock-

wise directionwith a small overlap tocollect

the dippings on the next pass.

•Pores in clothgrass catchers can become

filledwith dirt and dust with use and

catchers willcollectless grass. To prevent

this, regularlyhose catcher offwith water

and letdry before using.

•Keep top of engine around starterclearand

clean of grass clippingsand chaff. This will

help engine air flow and extend engine life.

MULCHING MOWING TIPS

IMPORTANT:Forbestperformance,keep

mowerhousingfree of built-upgrass and

trash.See =Cleaning" in Maintenance section

of this manual.

• The special mulchingblade WIUrecut the

grass cr=ppingsmany times and reduce

them in size so that as they fagonto the

lawn they willdisperse intothe grass and

not be noticed. Also,the mulchedgrass will

biodegrade quicklyto providenutrientsfor

the lawn. Always mulch with your highest

engine (blade) speed as this wRIprovidethe

best recuffingaction ofthe blades.

•Avoid cuttingyour lawn when itis wet. Wet

grass tends toform dumps and interferes

with the mulchingaction:-The best time to

mow your lawn is the early aftemoon. At

this time the grass has driedand the newly

cut area willnotbe exposed to the direct

sun.

•For best results,adjustthe lawn mower

cuttingheight sott'_t the lawn mower cuts

offonlythe topone-third ofthe grasF blades.

Ifthe lawn is overgrown it willbe,meesSary

to raisethe height of cutto reduce pushing

effortand to keep from overloadingthe

engine and leavingclumps ofmulched

grass. For extremely heavy mulching,

reduce your widthof cut by overlapping•

previouslycut path and mow slowly.

•Certaintypes of grass and grass conditions

may require thatan area be mulched a

second time to completelyhidethe

clippings. When doing a second cut,mow

acrossor perpendiculartothe firstcut path.

•Change yourcuttingpattem from week to

week. Mow north tosouthone weektherr-.

change to east towest the next week. This

will help prevent mating and grainingofthe

lawn. Max,/3

. °", i 1 .

ASYOUCOMPLETE

Ir _".,'_ -It

Checkfor LooseFasteners

Clean/InspectGrassCatcher

,(IfEquipped)

v' v'

v'3

Clean La_m Mower

Clean Under Drive Cover

W, {Power-Propelled Mowers)Check drive belt/pulleys

,(Power-Propelled Mowers)

RCheck/Sharpen/Replace Blade

Lu_caUonChart V' V'

Clean Battery/Recharge ....

(Electric Start Mowers) _Ik/4

RECheck EngineOil Level

Change Engine Oil _1_1._

Clean Air Fdter

Inspect Muffler

N Clean or Replace Spark Plug

Replace Air Filter Paper Cartridge If 2

1- Change moreoftenwhenoporaHngunder aheavy loador klhlghamblemlem_ms.

2-SeNice more oftenwhenopemlk_ In di_yordustyconddJons.

3-Replace bladesmornoftenwhenmowingin sandysoiL

4 - Charge 48 houmat end of season.

GENERAL RECOMMENDATIONS

The warranty on this lawn mower does not

cover itemsthat have been subjectedto

operator abuse or negligence. To receivefull

value from the warranty,operator must

maintain mower as instructedinthis manual.

Some adjustments willneed to be made

periodicallyto propertymaintainyour unit.

All adjustments in the Service and Adjust-

ments section ofthis manual shouldbe

checked at least once each season.

•Once a year, replacethe spark plug,

replace airfilterelement and check bladefor

wear. A new spark plugand clean/new air

filterelement assures proper air-fuelmixture

and helpsyour engine rail betterand last

longer.

•Followthe maintenance schedule in this

manual.

BEFORE EACH USE

• Check engine oillevel.

•Check for loosefasteners.

LUBRICATION

Keep unitwell lubricated(See "LUBRICATION

CHART").

LUBRICATION CHART

(_ Engineoil (_ Wheel

adjuster

(_)- Drive pins

__0 _Brake....

spring

bracket

(_ Rear

door

(_0 Spray lubricant hinge

(_ Refer to Maintenance "ENGINE"

section.

IMPORTANT: Do not oilor grease plastic

wheel bearings.Viscouslubricantswill

attractdust and dirtthat will shorten the

lifeofthe selflubricatingbearings. Ifyou

feel they mustbe lubricated,use only a

dry,powderedgraphitetype lubricant

spa ngly.

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