Craftsman 917.378421 Manuel utilisateur

Owner's Manual

6.75 HORSEPOWER

21" REAR DISCHARGE

POWER PROPELLED

ROTARYLAWN MOWER

Model No.

917,378421

•Safety

•Assembly

•Operation

•Maintenance

•EspaSol

•Repair Parts

CAUTION:

Read and followall

Safety Rules and Instructions

before operatingthisequipment

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

Visit our Cmftsrnan website: www.sears.com/cmflsman

Warranty ................................................. 2 Product Specifications.......................... 11

Safety Rules ........................................ 2.4 San'ice and Adjustments................. 14-15

Assembly ................................................ 5 Storage ............................................ 15-16

Operation ............................................. 6-9 Troubleshooting .............................. 17-18

Maintenance Schedule ........................ 10 Repair Parts..................................... 35°43

Maintenance .................................... 10-13 Parts Ordedng ........................ Back Cover

LIMITED TWOYEAR WARRANTY ON CRAFTSMAN POWER MOWER

For two years from date of pumhase, when this Craftsman Lawn Mower is maintained,

lubdcated, and tuned up according to the operating and maintenance instructionsin

the owner's manual, Sears will repair free of charge any defect in matedal or workman-

ship.

Ifthis Craftsman Lawn Mower is used for commercial or rental purposes, this warranty

appliesfor only 90 days from the date of purchase.

This Warranty does not cover:

• Expendable items which become worn dudng normal use, such as rotary mower

blades, blade adapters, beks, air cleaners and spark plug.

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

crankshaftsand the failure to maintain the equipment according to the Instructions

contained in the owner's manual.

Warranty service is available by returningthe Craftsman power mower to the nearest

Sears Service Center/Department in the United States. This warranty applies only

while this productis 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, Roebuck and Co., D/817 WA, Hoffman Estates, Illinois60179

IMPORTANT: This cutting machine is capable of amputating hands and feet and

throwingobjects. Failure to observe the following safety instructionscould resultin

sedous injuryor death.

I.GENERAL OPERATION

•Read, understand, and follow all

instructionson the machine and in the

manual(s) before starting. Be thor-

oughly familiar with the controls and

the proper use of the machine before

starting.

•Do not put hands or feet near or under

rotating parts. Keep clear of the

discharge opening at all times.

•Only allow responsible individuals,

who are familiar with the instructions, to

operate the machine.

• Clear the area of objects such as

recks, toys, wire, bones, sticks, etc.,

which could be picked up and thrown

by the blade. 2

• Be sure the area is clear of other

people before mowing. Stop machine it

anyone enters the area.

•Do not operate the mower when

barefoot or weadng open sandals.

Always wear substantialfoot wear.

•Do not pull mower backwards unless

absolutely necessary. Always look

down and behind before and while

moving backwards.

•Do not operate the mower without

proper guards, plates, grass catcher or

other safety protective devices in place.

•Sea manufacturer's instructions for

proper operation and installation of

accessories. Only use acoessodes

approved by the manufacturer.

• Stop the blade(s) when crossing gravel

drives, walks, or roads.

•Stop the engine (motor) whenever you

leave the equipment, before cleaning

the mower or uncloggingthe chute.

•Shut the engine (motor) off and wait

untilthe blade comes to complete stop

before removing grass catcher.

• Mow only in daylightor good artificial

light.

•Do not operate the machine while

under the influence of alcohol or drugs.

•Never operate machine in wet grass.

Alwaysbe sure of your footing: keep a

firm hold on the handle and walk; never

run.

•Disengage the serf-propelled mecha-

nismor ddve clutchon mowers so

equipped before starting the engine

(motor).

•If the equipment should start to vibrate

abnormally, stop the engine (motor)

and check immediately for the cause.

Vibration is generally a warning of

trouble.

•Always wear safety goggles or safety

glasses with side shields when

operating mower.

II. SLOPE OPERATION

Slopes are a major factor related to slip

and fall accidents which can result in

severe injury. All slopes require extra

caution. If you feel uneasy on a slope, do

not mow it.

DO:

•Mow acrossthe face of slopes: never

up end down. Exercise extreme caution

when changing direction on slopes.

•Remove obstacles such as rocks,tree

limbs,etc.

•Watch forholes, ruts, or bumps. Tall

grass can hide obstacles.

DO NOT:

•Do nottdm near drop-offs, ditches or

embankments. The operator could lose

footing or balance.

•Do nottdm excessively steep slopes.

•Do not mow on wet grass. Reduced

footing could cause slipping.

IlL CHILDREN

Tragic accidents can occur if the operator

is notalert to the presence of children.

Children are often attracted to the

machine and the mowing activity.Never

assume that children will remain where

you last saw them.

•Keep children out of the tdmming area

and under the watchful care ofanother

responsible adult.

•Be alert and turn machine off ifchildren

enter the area.

• Before and while walking backwards,

look behind and down for small

children.

• Never allow children to operate the

machine.

• Use extra care when approaching blind

comers, shrubs, trees, or other objects

that may obscure vision.

IV. SERVICE

•Use extra care in handling gasoline

and other fuels. They are flammable

and vapors are explosive.

- Use only an approved container.

- Never remove gas cap or add fuel

with the engine running.Allow

engine to cool before refueling. Do

not smoke.

-Never refuelthe machine indoors.

-Never store the machine or fuel

container inside where there is an

open flame, such as a water heater.

•Never run a machine inside a closed

area.

•Never make adjustments or repairs with

the engine (motor) running. Disconnect

the spark plugwire, and keep the wire

away from the plug to prevent acciden-

tal starting.

•Keep nuts and belts, especially blade

attachment belts, tight and keep

equipment in good condition.

•Never tamper with safety devices.

Check their proper operation regularly.

•Keep machine free of grass, leaves, or

other debds build-up. Clean oil or fuel

spillage. Allow machine to cool before

storing.

•Stop and inspect the equipment if you

strike an object. Repair, if necessary,

before restarting.

•Never attempt to make wheel height

adjustments while the engine (motor) is

running.

•Grass catcher components are subject

to wear, damage, and detedoratien,

which could expose moving parts or

allow objects to be thrown. Frequently

check components and replace with

manufacturer's recommended parts,

when necessary.

• Mower blades are sharp and can cut.

Wrap the blade(s) or wear gloves, and

use extra caution when servicingthem.

• Do notchange the engine governor

setting or overspeed the engine.

ALook for this symbol to point out

importantsafety precautions. Itmeans

CAUTIONI!! BECOME ALERTIII YOUR

SAFETY IS INVOLVED.

A CAUTION: In order to prevent

accidental starting when setting up,

transporting, adjusting or making repairs,

always disconnect spark plug wire and

place wire where it cannot contact spark

plug,

AWARNING: Battery posts, terminals and

related accassodes contain lead and

lead compounds, chemicals known to the

State of California to cause cancer and

birthdefects or other reprodustJveharm.

Wash hands after handling.

£WARNING: Engine exhaust,some of its

constituents, and certain vehicle

components contain or emit chemicals

known to the State of California to cause

cancer and birthdefects or other

reproductive harm.

CAUTION: Muffierand other engine

parts become extremely hot dudng

operation and remain hotafter engine has

stopped. To avoid severe burns on

contact, stay away from these areas.

These accessories were available when this lawn mower was produced.They are not

shipped with your mower. They are also available at most Sears retail outlets and

service centers. Most Sears stores can also order repair partsfor you, when you

provide the model number of your lawn mower. Some ofthese accessories may not

apply to your lawn mower.

LAWN MOWER PERFORMANCE

FOR REAR DISCHARGE LAWN MOWERS MULCHER KITS STABIUZER

REAR D]SCHARGE SIDE DISCHARGE

LAWN MOWERS LAWN MOWERS

GAS CANS

LAWN MOWER MAINTENANCE

MUFFLERS AIR ALTERS SPARK PLUGS

BELTS BLADES BLADE ADAPTERS WHEELS ENGINE OIL

Readtheseinstructionsandthismanual

initsentiretybeforeyouattempt to

assemble or operate your new lawn

mower.

IMPORTANT: This lawn mower is

shippedWITHOUT OiL OR GASOLINE in

the engine.

Your new lawn mower has boon as-

sembled at the factory with the exception

of those parts left unassembled for

shipping purposes. All parts such as nuts,

washers, bolts, etc., necessary to com-

plete the assembly have boon placed in

the parts bag. To ensure safe and proper

operationof your lawn mower, all parts

and hardware you assemble must be

tightened securely. Use the correct tools

as necessary to ensure proper tightness.

TO REMOVE LAWN MOWER FROM

CARTON

1. Remove loose parts included with

mower.

2. Cut down two end comers of carton

and lay end panel down flat.

3. Remove all packing materials except

padding between upper and lower

handle and padding holding operator

presence control bar to upper handle.

4. Roll lawn mower out of carton and

check carton thorouglyfor additional

loose parts.

HOWTO SET UPYOUR LAWN

MOWER

TO UNFOLD HANDLE

IMPORTANT: Unfold handle carefully so

as not to pinch or damage control cables.

1. Raise handles until lower handle

section locksinto place in mowing

position.

2. Remove protective padding, raise

upper handle section into place on

lower handle and tighten both handle

knobs.

3. Remove handle padding holding

operator presence control bar to

upper handle.

Your lawn mower handle can be adjusted

foryour mowing comfort. Refer to "AD-

JUST HANDLE" in the Service and

Adjustmentssection of this manual.

control bar

Lift L

position

Lower handle

TO INSTALL AI"rACHMENTS

Your lawn mower was shipped ready to

be used as a mulcher. To convert mower

to bagging, see "TO CONVERT MOWER"

in the Operation section of this manual.

KNOWYOUR LAWN MOWER

READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR

LAWN MOWER. Compare the illustrationswith your lawn mower to familiarize yourseff

withthe locationof 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

Enginezone

controlcable

lever

Starterhandle

Engine oil cap w/di

knob

Gasoline cap

Airfiller

Pdmer

Muffler

Dr_e cover

Housir

IMPORTANT: This lawn mower is shipped

WITHOUT OIL OR GASOLINE inthe engine.

Wheel a_uster

(on eachwhe_)

MEETS CPSC SAFETY REQUIREMENTS

Sears rotarywalk-behind power lawn mowers conform to the safety standards of the

Amedcan National Standards Institute and the U.S. Consumer Product Safety Commis-

sion. The blade turns when the engine is running.

Operator presence control bar -must Starter handle -used for starting engine.

be held down to the handle to start the Drive control lever -used to engage

engine. Release to stop the engine, power-propelled forward motion of lawn

Primer -pumps additional fuel from the mower.

carburetor to the cylinderfor use when

starting a cold engine. 6

Theoperationofanylawn

mowerconresultinforeign

objectsthrownintothe

eyes,whichcon resultin

severe eye damage.

Always wear safety glasses or eye

shields while operating your lawn mower

or performing any adjustments or repairs.

We recommend a wide vision safety

mask over spectacles or standard safety

glasses.

HOWTO USEYOUR LAWN MOWER

ENGINE SPEED

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 installed on this

lawn mower in order to minimize the risk

of blade contact injury.Do not under any

circumstancesattempt 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

requires the operator to be positioned

behind the lawn mower handle to start

and operate the lawn mower.

DRIVE CONTROL

•Self-propelling is controlled by holding

the operator presence control her down

to the handle and pushing the drive

control lever forward until it clicks;then

releasing the lever.

• Forward motionwill stop when the

operator presence control bar is

released. To stop forward motion

withoutstopping engine, release the

operator presence control bar slightly

until the ddve control disengages. Hold

operator presence control bar down

against handle to continue mowing

without self-propelling.

•To keep drive control engaged when

turning comers, push down on handle

end liftfront wheels off ground while

turning lawn mower.

Operatorpresencecontrolbar Ddve

control

TO ADJUST CU'rFING HEIGHT

Raise wheels for low cut and lower

wheels for high cut, adjust cuttingheight

to suit your requirements. Medium

position is bestfor most lawns.

To change cutting height, squeeze

adjuster lever toward wheel. Move

wheel up or down to suit your require-

ments. Be sure ell wheels are in the

same setting.

NOTE: Adjusteris propedy positioned

when plate tab inserts intohole in lever.

Also, 9-posiiton adjusters (if so equipped)

allow laver to be positioned between the

plate tabs.

LowerWheelsforHighCut r_e Tab_

RaiseWheelsforLowCut Lever

TO CONVERT MOWER

Yourlawn mowerwas shippedreadyto be

ussdas a mulcher.Toconverttohegging:

REAR BAGGING

• Liftreardoorofthe iswnmower and place

thegrasscatcherframe hooksontothe

doorpivotpk_.s.

•To conve_to mulchingopera,on, remove

grassc_cher and dose rear door.

ACAUTION: Do not run your lawn mower

without clippingdeflector or approved

grass catcher in place. Never attempt to

operate the lawn mower with the rear

door removed or propped open.

pivot "Rear Grass

catcher

_. handle

Catcherframe

To engage Drive control

drive control disengaged 7

TO EMPTY GRASS CATCHER

1. Lift up on grass catcher using the

frame handle.

2. Remove grass catcher with clippings

from under lawn mower handle.

3. Empty clippingsfrom bag using both

frame handle and bag handle.

NOTE: Do not drag the bag when

emptying; itwill cause unnecessary wear.

Grass

frame

handle

Bag I

BEFORE STARTING ENGINE

ADD OIL

Your lawnmower is shipped without oil in

the engine. Engine holds 20 oz. of oil.

Fortype and grade of oil to use, see

=ENGINE" in Maintenance section of this

manual.

1. Be sure lawnmower is level and area

around oil fill is clean.

2. Remove engine oil cap and fill to the

full line on the dipstick. Pour oil slowly.

Do notover fill.

NOTE: Allow oilto settle down into engine

for accurate reading. To read proper level,

tighten engine oil cap, then remove it to

read the dipstick.

3. Reinstall engine oil cap and tighten.

• Check oil level before each use. Add

oil if needed. Fill to full line on dipstick.

•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.

ADD GASOLINE

•Fillfuel tank. Use fresh, clean, regular

unleaded gasoline w_tha minimum of

87 octane. Do not mix oil with gaso-

line. Pumhase fuel in quantities that

can be used within 30 days to assure

fuel freshness.

_WARNING: Experience indicatesthat

alcohol blended fuels (called gasohel or

using ethanol or methanol) can attract

moisture which leads to separation and

formation of acids dudngstorage. Acidic

gas can damage the fuel systemof an

engine while in storage. To avoid engine

problems, the fuel system should be

emptied before storage of 30 days or

longer. Drain the gastank, start the

engine and let it run untilthe fuel lines

and carburetor are empty. Use fresh fuel

next season. See Storage Instructionsfor

additional information. Never use engine

or carburetor cleaner products in the fuel

tank or permanent damage may occur.

_, CAUTION: Fillto bottom of gas tank

filler neck. Do not overfill. Wipe off any

spilled oil or fuel. Do not store, spillor

use gasoline near an open flame.

Engine oil cap

TO START ENGINE

NOTE: Due to protective coatingson the

engine, a small amount of smoke may be

present duringthe initialuse ofthe

product and should be considered

normal.

1. To start a cold engine, push primer

three (3) times before trying to start.

Use a firm push. This step isnot

usually necessary when starting an

engine which has already run for a

few minutes.

2. 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

•To stop engine, release operator

presence control bar.

NOTE: In cooler weather it may be

necessary to repeut priming steps. In

warmer weather over pdming may cause

floodingand engine will not start. If you

do flood engine, wait afew minutes

before attempting to start and do not

repeat pdmingsteps.

MOWINGTIPS

•Under certain conditions,such as very

tall grass, it may be necessary to raise

the height of cutto reduce pushing

effortand to keep from ovedoedlng 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.

•When using a rear discharge lawn

mower in moist, heavy grass, clumps of

cut grass may not enter the grass

catcher. Reduce ground speed

(pushing speed) and/or run the lawn

mower over the area a second time.

•If a trail of clippingsis left on the right

side of arear discharge mower, mow in

a clockwise direction with a small

ovedap to collect the clippings on the

next pass.

• Pores in cloth grass catchers can

become filled with dirt and dust with

use and catchers will collect less grass.

To prevent this, regulady 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.

MULCHING MOWINGTIPS

IMPORTANT: For best performance,

keep mower housing free of built-up

grass and trash. See =CLEANING" in the

Maintenance section of this manual.

•The special mulching blade will racut

the grass clippings many times and

reduce them in size so that as they fall

onto the lawn they willdisperse intothe

grass and not be noticed. Also, the

mulched grass will biodegrade quickly

to providenutdents for the lawn.

Always mulch with your highest engine

(blade) speed as this will providethe

best recutting action of the blades.

•Avoid cuttingyour lawn when it is wet.

Wet grass tends toform clumps and

interferes with the mulching action.

The best time to mow your lawn is the

eady afternoon, At this Umethe grass

has dded and the newly cut area will

not be exposed to the direct sun.

•For best results, adjustthe lawn mower

cutting height so that the lawn mower

cuts off only the top one-third of the

grass blades. If the lawn is overgrown

itwill be necessary to raise the height

ofcut to reduce pushingeffort end to

keep from overloading the engine and

leaving dumps of mulched grass. For

extremely heavy mulching, reduce your

width of cut by ovedapping previously

cut path and mow slowly.

• Certain types of grass and grass

conditionsmay require that an area be

mulched a second time to completely

hide the clippings. When doing a

second cut, mow across or perpendicu-

lar tothe first cut path.

•Change your cutting pattern from week

to week. Mow north to south one week

then change to east to west the next

week. This will help prevent matting

and graining of the lawn.

.A,NTE" NCESC.EDULE "

EO E V'OE ERVICE DATES

Check for Loose Fasteners Ii/ kJ

Clean/Inspect Grass Catcher

(IfEquIpped_ _/ I,/ I,/

;leanLawnMower k/ !

CleanUnderDriveCover

<Power-PropelledMowers) l#/

Checkdrive ulleys

Power.p ropel_]PMowe rs)hew b/

R ChecldSharpen/Replace Blade 1_3

Lubrication Chart l/ I/

Clean Batteri/Rechar

ECheck Engine 011Lever fl/

N Change Engine Oil 11/1,,1

Clean Air Filter IJ 2

IN Inspact Muffler

Clean or Replace Spark Plug

EReplace AirFilter Paper Cartridge if=

1oCt_r_e moreone_ _ operat_g unders heavy bad or inhigh a,T2:_er_ternpetatumL

2 * Ser,/k_ mon_oftmnW_mtopmatingin dirty or dusty coqditlons,

3-Rep_c6_rnon,o_n wi_n mow_g_sar_ysea,

4-CP_ge 48 houm atend _aeuon.

GENERAL RECOMMENDATIONS

The warranty on this lawn mower does

notcover items that have been subjected

to operator abuse or negligence. To

receivefull value from the warranty,

operator must maintain mower as

instructedin this manual.

Some adjustments will need to be made

periodicallyto properly maintain your

unit.

All adjustments in the Service and

Adjustmentssection of this manual

should be checked at least once each

season.

•Once a year, replace the spark plug,

clean or replace air filter element and

check blade for wear. A new spark

plug and clean/new air filter element

assure proper air-fuel mixture and help

your engine run better and last longer.

•Follow the maintenance schedule in

this manual.

LUBRICATION CHART

(_) Wheeladjuster

oneachwheel)

BEFORE EACH USE

1. Check engine oil level.

2. Check for loose fasteners.

LUBRICATION

Keep unit well lubricated (See "LUBRI-

CATION CHART").

I (_ Brake

spring

Ibracket

(_ Rear

Handle bracket mounting pins door hinge

Spray lubricant

See "ENGINE" In Maintenance section.

IMPORTANT: Do notoil or grease

plastic wheel bearings. Viscous

lubricants will attract dust and dirt that

will shorten the life of the saif-lubdcat-

lag bearings. If you feel they mustbe

lubricated,use only a dry,powdered

graphite type lubricant sparingly.

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