Craftsman 917.38841 User Manual

Owner's Manual

[RI:IFTXMI:IN°

6.75 HORSEPOWER
21" MULTI-CUT

ROTARY LAWN MOWER

Model No.

917.388410

• 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 6017_
Visitour Craftsmanwebsite: www.sears.com/craftsman

Warranty ............................................... 2

Safety Rules ......................................... 2

Assembly .............................................. 4

Operation .............................................. 6

Maintenance Schedule ........................ 10

Maintenance ......................................... 10

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 workman-
ship.

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

crankshafts and the failure to maintain the equipment according to the instructions
contained 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

Product Specifications .......................... 11

Service and Adjustments ...................... 13

Storage ................................................. 14

Troubleshooting ................................... 15

Repair Parts .......................................... 34

Parts Ordering ...................... Back Cover

Safety standards require operator
presence control to minimize the risk of
injury. Your unit is equipped with cuch

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

2

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 repair-
ing 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 your 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 or you

might lose your footing. Do not mow
excessively 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 worn 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.

ALook for this symbol to point out
important safety precautions. It means

CAUTIONH! BECOMEALERT!H YOUR
SAFETY IS INVOLVED.

_I,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 California to cause cancer,
birth defects, or other reproductive harm.

3

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 outletsand service
centers. Most Sears stores can also order repair partsfor you, when you provide the model
number ofyour lawn mower. Some of these accessories may not apply to yourlawn mower.

LAWN MOWER PERFORMANCE

CLIPPING DEFLECTOR

FOR REAR DISCHARGE LAWN MOWERS

MULCHER KITS

STABILIZER

GRASS CATCHERS

FOR

REAR DISCHARGE

LAWN MOWERS

LAWN MOWER MAINTENANCl

MUFFLERS

BELTS BLADES BLADE ADAPTERS WHEELS

Read these instructions and this manual in
its entirety before you attempt to assemble

or operate your new lawn mower.
IMPORTANT: This lawn mower is shipped

WITHOUT OIL OR GASOLINE in the

engine.

Your new lawn mower has been as-
sembled at the factory with the exception of

those parts left unassembled for shipping

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 neces-
sary to ensure proper tightness. All parts

such as nuts, washers, bolts, etc., neces°
sary to complete the assembly have been

placed in the parts bag.

/ FOR

SIDE DISCHARGE

! GRASS CATCHERS

LAWN MOWERS

GAS CANS

AIR FILTERS

SPARK PLUGS

ENGINE OIL

TO REMOVE LAWN MOWER FROM
CARTON

• Remove loose parts included with

mower.

• Cut down two end comers 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

parts.

4

HOW TO SET UPYOUR 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

U
handle

Lift up

Lower
handle

Handle j
pin

Mowing
posiUon

3-Position

handle
adjustment

TO INSTALL ATTACHMENTS

Your lawn mower was shipped ready to
be used as a mulcher. To convert to

bagging or discharging, see "To convert
mower" in the OPERATION section of this

manual.

5

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 HANDS

OR WARNING ON OFF AND FEET AWAY

Operator presence control
bar

Engine zone control cable

Handle

G rass

filler cap

Engine oil cap

with dipstick

Mulcher door Lawn mower housing

IMPORTANT: This lawn mower is shipped
WITHOUT OIL OR GASOLINE in the Wheel adjuster

engine. (on each wheel)

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 Commission. 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

carburetor to the cylinder for use when

starting a cold engine.
Starter Handle - used for starting the engine.

6

The operation of any lawn mower

can result in foreign objects thrown
nto the eyes, which can result in

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 CONTROL

The engine speed was set at the factory for
optimum performance. Speed is not adjust-

able.

ENGINE ZONE CONTROL

_CAUTION: Federal regulations require
an engine control to be installed on this

lawn mower in order to minimize the risk

of blade contact injury. Do not under any
circumstances attempt to defeat the
function of 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.

TO ADJUST CUTrlNG HEIGHT

• Raise wheels for low cut and lower wheels
for highcut.

• Adjustcutting heightto suit your require-
ments. Medium positionisbest for most

lawns.

• To change cutting height, squeeze adjuster
lever toward wheel. Move wheel up or

down to suit your requirements. Be sure all

wheels are inthe same setting.

NOTE: Adjuster is properly positioned

when plate tab inserts into hole in lever.
Also, 9-position adjusters (if so equipped)

allow lever to be positioned between the

plate tabs.

Lower Wheels for High Cut

Plate Tab

REAR BAGGING

• Lift rear door of the lawn mower and place
the grass catcher frame hooks onto the

door pivot pins.

• To convert to mulching or discharging
operation, remove grass catcher and close

rear door.

Pivot pins

SIDE DISCHARGING

• Rear door must be closed.

• Open mulcher door and install discharge

deflector under guard as shown.

• Mower is now ready for discharging

operation.

• To convert to mulching or bagging

operation, discharge deflector must be
removed and mulcher door must be

closed.

SIMPLE STEPS TO REMEMBER

WHEN CONVERTING YOUR LAWN

MOWER

FOR MULCHING -

• Rear door closed.

• Mulcherdoor closed.
FOR REAR BAGGING -

• Grass catcherinstalled.

• Mulcherdoorclosed.
FOR SIDE DISCHARGING -

• Rear door closed.

• Side dischargedeflectorinstalled.

_CAUTION: Do not run your lawn

mower without rear door closed or

approved grass catcher in place. Never
attempt to operate the lawn mower with
the rear door removed or prepped open,

J

Raise Wheels for Low Cut

Lever

TO CONVERT MOWER

Your lawn mower was shipped ready to be
used as a mulcher. To convert to bagging or
discharging:

Mulcher
door

7

Open

Mulcher Door

Discharge
deflector

problems, the fuel system should be
emptied before storage of 30 days or

longer. Drain the fuel tank, start the
engine and let it run until 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 fuel tank
or permanent damage may occur.

ACAUTION: 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.

BEFORE STARTING ENGINE
OIL

Your lawn mower isshipped without oil in the
engine.

• Be sure mower is level and area around oil

fillis clean.

• Remove engine oilcap and fillto the full

line on the dipstick.

NOTE: Allow oil to settle down into

engine for accurate dipstick reading.

• Engine holds 20 ozs. of oil. Fortype and

grade of oilto use, see "ENGINE" in

Maintenance section of this manual.

• Pour oil slowly. Do not over fill.

• Check oillevel before each use. Add oil if
needed. Fill to full line on dipstick.

• To read proper level, tighten engine oil cap

each time.

• Reinstall engine oil cap 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.

ADDGASOUNE

• 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.

Engine oil

Gasoline filler

cap

_i_ cap

TO START ENGINE

• To start a cold engine, push primer three
(3) times before tryingto start.Use a firm

push. This step is not usually necessary
when starting an engine which has already

runfor a few minutes.

• Hold operator presence control bar down
to the handle and pull starter handle

quickly.Do not allow starterrope 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.

_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

8

MOWINGTIPS

• Under certain conditions, such as very

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.

• 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.

MULCHING MOWING TIPS
IMPORTANT: For best performance, keep

mower housing free of built-up grass and
trash. Clean UNDERSIDE OF MOWER

HOUSING after each use. See "Cleaning"
in MAINTENANCE section of this manual.

• The special mulching blade will recut
the grass clippings many times and

reduce them in size so that as they fall
onto the lawn they will disperse into the

grass and not be noticed. Also, the
mulched grass will biodegrade quickly
to provide nutrients for the lawn.
Always mulch with your highest engine
(blade) speed as this will provide the
best recutting action of the blades.

• Avoid cutting your lawn when it is wet.
Wet grass tends to form clumps and

interferes with the mulching action. The

best time to mow your lawn is the early

afternoon. At this time the grass has

dried and the newly cut area will not be

exposed to the direct sun.

• For best results, adjust the 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 it
will be necessary to raise the height of
cut to reduce pushing effort and to keep
from overloading the engine and

leaving clumps of mulched grass. For
extremely heavy mulching, reduce your

width of cut by overlapping previously

cut path and mow slowly.

• Certain types of grass and grass
conditions may require that an area be

mulched a second time to completely
hide the clippings. When doing a

second cut, mow across or perpendicu-

lar to the first cut path.

• Change your cutting pattem 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.

1/3

9

MAINTENANCE SCHEDULE

FILL IN DATES
AS YOU COMPLETE

REGULAR SERVICE

Check for Loose Fasteners ¥#

(IfEquipped)
CleardlnspectGrass Catcher !_

(_ Clean Lawn Mower

Clean Under Drive Cover

(Power-Propelled Mowers) !_#

W Check drive belt/pulleys

(Power-PropenedMowers) I11

R Check/Sharpen/Replace Blade 1_3

LubricationChad I_ I_

Clean Battery/Recharge
(Electric Start Mowers) I#/ 1_4

E Check EngineOil Level Ip#

Change EngineOil _1,2

InspectMuffler

G Clean Air Filter _12

N Clean or ReplaceSpark Plug

Replace Air Filter Paper Cadrtdge f_'2

I - Change more offe_ when operating under a heavy load or in high ambient lernperalures.

2 ° Service n_ore often when operating in dirty ordusty conditions.
3 - Replace blades more often when mowing in sandy soil.

4 - Charge 48 hours at end of season.

_ERVICE DATES

GENERAL RECOMMENDATIONS
The warranty onthis lawn mower does not

cover items that have been subjected to

operatorabuse or negligence. Toreceive full
value from the warranty,operator must

maintainmower as instructedin this manual.
Some adjustments willneed to be made

periodicallyto properly maintain your unit.

All adjustmentsin the Service and
Adjustments section of this manual should be

checked at least once each season.

• Once a year, replace the spark plug,
replace air filterelement and check blade
for wear. A new spark plug and dean/new

air filterelement 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 unit well lubricated (See "LUBRICATION

CHART").

LUBRICATION CHART

) Wheel

adjusters

_rake spdng

bracket

Engineoil

Rear
door t Handle bracket

hinge mounting pin

O SPRAY LUBRICANT
(_ SAE 30 MOTOR OIL. REFER TO ENGINE -

MAINTENANCE SECTION.

IMPORTANT: Do not oil or grease plastic
wheel bearings. Viscous lubricants will

attract dust and dirt that will shorten the
life of the self lubricating bearings. If you
feel they must be lubricated, use only a

dry, powdered graphite type lubricant

sparingly.

10

PRODUCT SPECIFICATIONS

SERIAL NUMBER
DATE OF PURCHASE
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.

;PARK PLUG(GAP: .030") CHAMPION RJ19LM OR J19LM

VALVE CLEARANCE: INTAKE: .004 - .008

EXHAUST: .004 - .008

SOLID STATE IGNITION

AIR GAP: .0125 IN.
BLADE BOLTTORQUE: 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

Always observe safety rules when performing

any maintenance.

TIRES

• Keep tires free of gasoline, oil,or insect
controlchemicals which can harm rubber.

• Avoid stumps, stones, deep ruts,sharp
ob'._-'tsand 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 side. 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.

• Remove blade and attaching hardware
(bolt, lock washer and hardened

washer).

NOTE: Remove the blade adapter and
check the key inside hub of blade adapter.
The key must be in good condition to work

properly. 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: Blade bolt is grade 8 heat
treated.

11

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.

Crank shaft

Blade keyway

Ke

Bolt Crank

Lockwasher Hardened Blade shaft

washer Trailing adapter

edge

GRASS CATCHER

• 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, rep_ce

only with a manufacturer approved
replacement catcher. Give the lawn mower

model number when ordering.

NOTE: Although multi--viscosity oils
(5W30, 10W30 etc.) improve starting in

cold weather, these multi--viscosity oils

will result in increased oil consumption
when used above 32°F. Check your

engine oil level more frequently to avoid
possible engine damage from running

low on oil.

Change the oil after every 25 hours of
operation or at least once a year if the

lawn mower is not used for 25 hours in
one year.

Check the crankcase oil level before
starting the engine and after each five (5)

hours of continuous use. Tighten oil plug
securely each time you check the oil level.

TO CHANGE ENGINE OIL

NOTE: Before tipping 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 surface.

• Tip 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.

• 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

ENGINE

LUBRICATION
Use only high quality detergent oil rated

with API service classification SF, SH or
SG. Select the oil's SAE viscosity grade
according to your expected operating

.=o+

TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

AIR FILTER
Your engine will not run properly and may

be damaged by using a dirty air filter.
Replace the air filter every year, more
often if you mow in very dusty, dirty

conditions. Do not wash air filter.
TO CHANGE AIR FILTER

• Remove the air filter by turning clock-
wise to the stop and pull away from

collar.

• Remove filter from inside of cover.

• Clean the inside of the cover and the

12 collar to remove any dirt accumulation.

• Insert new filter into cover.

• Put air filter cover and filter into collar

aligning the tab with the slot,

• Push in on cover and turn counterclock-

wise to tighten,

Turn

clockwiseto

remove

Slot

Air filter Turn counter--

Air filter cover

clockwise

to tighten

MUFFLER
Inspect and replace corroded muffler as it

could create afire hazard and/or damage.

SPARKPLUG

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, keep

mower housing free of built--up grass

and trash. Clean underside of mower

housing after each use.

_kCAUTION: Disconnect spark plug wire
from spark plug and place wire where it

cannot come in contact with the spark
plug.

• Turn lawn mower on its side. Make sure
air filter and 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 clogged engine runs
hotter and shortens engine life.

• Keep finished surfaces and wheels free

of all gasoline, oil, etc.

• We DO NOT recommend using a
garden hose to clean lawn mower

unless the electrical system, muffler, air

filter and carburetor are covered to

keep water out. Water in engine can
result in shortened engine life.

ACAUTION: Before performing any
service or 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 CUTTING HEIGHT

See "TO ADJUST CUTTING 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

The handle on your lawn mower has
three (3) height positions ° adjust to height

that suits you.

• 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.

pin

J

Handle
adjustment

bracket

13

TO ASSEMBLE GRASS CATCHER

• Put grass catcher frame into grass bag
with rigid part of bag on the bottom.

Make sure the frame handle is outside
of the bag top.

• Slip vinyl bindings over frame.

NOTE: If vinyl bindings are too stiff, hold

them in warm water for a few minutes. If
bag gets wet, let it dry before using.

_,CAUTION" Do not run your lawn

mower without clipping deflector or
approved grass catcher in place. Never

attempt to operate the lawn mower with
the rear door removed or propped open.

Catcher

frame

handle

"_-- Frame

opening

ENGINE

CARBURETOR

Your carburetor has a non-adjustable fixed
main jet for mixture control. If your engine

does not operate properly due to suspected
carburetor problems, take your lawn mower to
an authorized service center for repair or

adjustment.

IMPORTANT: Never tamper with the

engine governor, which is factory set for

proper engine speed. Overspeeding the
engine above the factory high speed

setting can be dangerous, if you think the

engine-governed high speed needs
adjusting, contact your nearest authorized

service center, which has proper

equipment and experience to make any
necessary adjustments.

ENGINE SPEED
Your engine speed has been factory set. Do

not attempt to increase engine speed or it
may resultin personal injury. If you believe
that the engine is runningtoo fast or too slow,

take your lawn mower to an authorized
service center for repair and adjustment.

Immediately prepare your lawn mower for

storage at the end ofthe season or ifthe unit

willnot be used for 30 days or more.

LAWN MOWER

When lawn mower is to be stored for a period

oftime, clean it thoroughly,remove all dirt,

grease, leaves, etc. Store in a clean, dry area.

• Clean entire lawn mower (See "CLEAN-

ING" 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.

• You can fold your lawn mower handle for
storage.

• Loosen the two (2) handle knobs on sides
of the upper handle and allow handle to

fold down to the rear.

• Squeeze the bottom ends of lower handle
toward each other until pins in handle clear

the brackets and pivot entire handle
assembly forward and allow it to rest on

mower.

• When setting up your handle from the
storage position, the lower handle will

require manually locking into the mowing
position.

IMPORTANT: When folding the handle

for storage or transportation, be sure to
fold the handle as shown or you may

damage the control cables.

Operator Presence

Control Bar

Upper

Handle

Fold Forward _:,6"///

_'Nx"

For Storage _

' !IV *"

.,, Fold

_ Backward

Mowing
Position

Lower Handle

14

pin

_, rHandle

adjustment

acket

ENGINE

FUELSYSTEM
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 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
alternative in minimizing the formation of

fuel gum deposits during storage. Add
stabilizer to gasoline in fuel tank or

TROUBLESHOOTING CHART

PROBLEM CAUSE

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 oil through
spark plug hole into cylinder.

• Pull starter handle slowly a few times to
distribute oil.

• Replace with new spark plug.

OTHER

• Do not store gasoline from 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 protec-

tive cover that does not retain moisture.

Do not use plastic. Plastic cannot
breathe which allows condensation to

form and will cause your unit to rust.

IMPORTANT: Never cover mower while
engine and exhaust areas are still warm.

_,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.

CORRECTION

Does not start 1. Dirty air filter.

2. Out offuel,

3. Stale fuel.

4. Water infuel.

5. Spark plug wire is
disconnected.

6. Bad spark plug.

7. Loose blade or broken blade

adapter.

8. Control bar in released

position.

9. Control bar defective.

1. Clean/replace air filter.

2. Fill fuel tank.

3. Drain tank and refill with
fresh clean fuel.

4. Drain fuel tank and
carburetor and refill tank

with fresh gasoline.

5. Connect wire to plug.

6. Replace spark plug.

7. Tighten blade bolt or
replace blade adapter.

8. Depress control bar to
handle.

9. Replace control bar.

15

TROUBLESHOOTING CHART

PROBLEM CAUSE CORRECTION

Loss of power

Poor cut - uneven

Excessive
vibration

1. Rear of lawn mower housing
or cutting blade dragging
in heavy grass.

2. Cutting too much grass.

3. Dirty air filter.

4. Buildup of grass, leaves,

and trash under mower.

5. Too much oil in engine.

6. Walking speed too fast.

1. Wom, bent or loose blade.

2. Wheel heights uneven.

3. Buildup of grass, leaves
and trash under mower.

1. Wom, bent or loose blade.

2. Bent engine crankshaft.

1. Set to "Higher Cut"
position.

2. Set to "Higher Cut_'
position.

3. Clean/replace air filter.

4. Clean underside of mower

housing.

5. Check oil level.

6. Cut at slower walking
speed.

1. Replace blade. _ghten
blade belt.

2. Set all wheels at same
height

3. Clean underside of

mower housing.

Replace blade. 13ghten

blade bolt.

2. Contact an authorized

service center.

Starter rope hard
topull

Grass catcher
not filling (,'so

equipped)

Hard to push

.

Engine flywheel brake is on

when control bar is released.

.

Bent engine crankshaft.

3.

Blade adapter broken.

4.

Blade dragging in grass.

1. Cutting height too low.

2. Lifton blade wom off.

3. Catcher not venting air.

1. Grass is too high or wheel
height is too low.

2. Rear of lawn mower

housing or blade dragging

in grass.

3. Grass catcher too full.

4. Handle height position not

right for you.

1. Depress controlbar to

upper handle before
pullingstarter rope.

2. Contact an authorized

service center.

3. Replace blade adapter.

4. Move lawn mower to cut

grass or to hard surface
to start engine

1. Raise cutting height.

2. Replace blade.

3. Clean grass catcher.

1. Raise cutting height.

2. Raise rear of lawn mower

housing one (1) setting
higher.

3. Empty grass catcher.

4. Adjust handle height to
suit.

16

33

CRAFTSMAN ROTARY LAWN MOWER -- MODEL NO. 917.388410

49

14

3

14

7

68

67

44

43 34

25

33

21

47

19

56

37

\

CRAFTSMAN ROTARY LAWN MOWER-- MODEL NO. 917.388410

KEY PART
NO. NO.

1 131696
2 166860X479

3 161105X479
4 132001
5 63601

6 131959
7 66426
8 74780512

9 154132
10 165754
11 156577

12 750097
13 850733X004
14 136376

15 51793
16 147286

17 165946X479

18 17600406
19 167132X004
20 167133X004
21 165858

22 168360X004
23 166875
24 75115,3
25 166236X479
26 166243x479
27 851856

28 152124
29 160835X007
30 19112222

31 165760

DESCRIPTION

Control Bar
Upper Handle

Lower Handle

RopeGuide

Locknut 1/4-20

Handle Bolt

WireTie

Hex Bolt 5/16-18 x 3/4
Hinge Bracket

Mulcher Door
Engine Zone Control Cable

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

Handle Knob
Hairpin Cotter

Hinge Rod
Support Bracket

Screw
Axle Arm Assembly - LF
Axle Arm Assembly - RF

Rear Skirt

Selector Spring

Rear Door Assembly Kit (Incl. Spdngs)

Locknut 5/16-18

Handle Bracket Assembly (Left)

Handle Bracket Assembly (Right)

Screw 1/4-20 x 3/8

Hinge Spdng

Wheel Adjusting Bracket - Front

Spacer

Clip on Discharge Guard

KEY PART
NO. NO. DESCRIPTION

33 87877
34 167130X004
35 166785

36 160828
37 151162
38 164362
39 83923
40 774O0

41 88652
42 165766
43 165767
44 165912
45 150406

46 85463
47 63124
48 167131X004
49 151161
50 57143
51 73990500

52 166878
53 851084
54 850263

55 851074

56 165833
57 851514
58 161551
67 166113
68 165755

70 ......

- - 161058

- - 174409

Selector Knob
Axle Arm Assembly - LR

Looknut 5/16-18

Shoulder Bolt 5/16-18
Wheel Assembly

Shoulder BOlt

Flanged Locknut

Hubcap
Hinge Screw
Spdng (LH)
Spnng(RH)

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

Danger Decal

Nut
Axle Arm Assembly - RR
Wheel

Wave Washer

Nut
Housing Assembly (Incl. Ref. #17, 18 & 46)

Hex Head Screw 3/8-24 x 1-3/8 Grd. 8

Helical Lockwasher

Hardened Washer
21" Blade

Blade Adapter
Adjustment Bolt

Grass Bag
Catcher Frame

Engine - (See Breakdown)
Craftsman 143,006714

Waming Decal (Not Shown)
Owner's Manual

CRAFTSMAN 4-CYCLE ENGINE MODEL NO. 143.006714

4OO

135

223.

182

370C

130 _',.

120

'_310

185

239 ._)

</_8 245

238

250

36

CRAFTSMAN 4-CYCLE ENGINE

MODEL NO. 143.006714

KEY PART
NO. NO. DESCRIPTION

1 37465 Cylinder (Incl. 2 & 20) 169 36783

2 26727 Dowel Pin 172 36784
6 33734 Breather Element 174 30200

7 36557 Breather Ass'y. (Incl. 6 & 12A) 178 29752

12 36775 Breather Tube 182 6201
12A 36558 Breather Cover & Tube (Incl. 184 26756

12B)

12B 36694 Breather Tube Elbow 185 37466
14 28277 Washer 186 32653

15 30589 Governor Rod (Incl. 14) 189 650839
!6 34839A Governor Lever 191 36559A

17 31335 Governor Lever Clamp 195 610973
18 651018 Screw, Torx T-15, 8-32 x 19/ 207 34336

64" 216 33086

19 36281 Extension Spring 223 650451

20 32600 Oil Seal 224 36786
30 37459 Crankshaft 238 650932

40 40027 Piston, Pin & Ring Set (Std.) 239 34338
41 40042 Piston & Pin Ass'y. (Std.) (Incl. 241 36919

43) 245 36905
42 40006 Ring Set (Std.) 250 36920
43 20381 Piston Pin Retaining Ring 260 36980
45 36777 Connecting Rod Ass'y. (Incl. 261 30200

46) 262 650831
46 32610A Connecting Rod Bolt 263A 36921
48 27241 Valve Lifter 275 37462

50 37460 Camshaft (MCR) 277 650988
52 29914 Oil Pump Ass'y. 285 35000A

69 35261 Mounting Flange Gasket 287 650926

70 34311E Mounting Flange (Incl. 72 thru 290 29774

83) 292 26460

72 30572 Oil Drain Plug (Incl. 73) 298 28763
73 28833 Drain Plug Gasket 300 36916

75 27897 Oil Seal 301 36246
80 30574A Governor Shaft 305 35647

81 30590A Washer 306 36996
82 30591 Governor Gear Ass'y. (Incl. 81) 307 35499
83 30588A Governor Spool 309 650562

86 650488 Screw, 1/4-20 x 1-1/4" 310 35648
89 611004 Flywheel Key 313 34080

90 611112 Flywheel 347 651038
92 650815 Belleville Washer 355 590701
93 650816 Flywheel Nut 370A 36261

100 34443B Solid State Ignition 370C 37318
101 610118 Spark Plug Cover 370R 37317
103 651007 Screw, Torx T-15, 10-24 x 15/ 380 640271

16" 390 590739

110 37047 GrouodWire 400 36792B
119 36787 Cylinder Head Gasket

120 36825 CylioderHead 416 36085
125 36780 Exhaust Valve (1/32" OS)

(Incl. 151) 417 650760

37288 Exhaust Valve (Std.) (Incl. 900

151) 900

126 36782 Intake Valve (1/32" OS) (Incl.

151)

37289 Intake Valve (Std.) (Incl. 151)

130 6021A Screw, 5/16-18 x 1-1/2"
135 35395 Resistor Spark Plug (RJ19LM)

150 31672 Valve Spdng

151 31673 Valve Spring Cap
151A 40017 Intake Valve Seal

KEY PART
NO. NO.

NOTE: This engine could have been built with
590702 starter).

NOTE: All component dimensions given in U.S.
inches 1 inch = 25.4 mm

DESCRIPTION

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"

Starter Grill

Muffler

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

Starter Cup

Screw, 8-32 x 21/64"

Fuel Line

Fuel Line Clamp

Screw, 10-32 x 35/64"

Fuel Tank (Incl. 292 & 301)

Fuel Cap (Black)

Oil Fill Tube

"O"-Ring

"O"-Ring

Screw, 10-32 x 1/2"

Dipstick

Spacer

Screw, 10-32 x 51/64"

Starter Handle

Lubrication Decal

Primer Decal (3 X)
Warning Decal

Carburetor (Incl. 184)

Rewind Starter

Gasket Set (Incl. Items

Marked *)

Spark Arrestor Kit (Incl.

417) (Optional)

Screw, 8-32 x 3/8" (Optional)

Replacement Engine NONE

Replacement S/B 750865,

order from 71-999

RPM High 2900 to 3200

37

CRAFTSMAN 4-CYCLE ENGINE MODEL NO. 143.006714

_:)--..37

I-

_m37

KEY

PART

NO.

NO.

----640271
1

631615

2

631767

4

631184 *

5

631183 *

6

640070

7

650506 *

16

631807

17

651025

18

630766

20

640027

20A

640200

25

631867

27

631024 *

28

632019

29

631028 *

30

631021 *

31

631022

35

640259

36

640080

36A

632766

37

632547 *

4O

640030

44

27110A *

47

630748 *

48

631027 *

60

632760S

DESCRIPTION
Carburetor (Incl. 184 of Engine Parts List)

Throttle Shaft & Lever Assembly
Throttle Return Spring

Dust Seal Washer
Dust Seal (Throttle)

Throttle Shutter
Shutter Screw

Fuel Fitting
Throttle Crack Screw/Idle Speed Screw

Tension Spring

Idle Restrictor Screw
Idle Restrictor Scrwe Cap (Black)

Float Bowl
Float Shaft
Float

Float Bowl =O" Ring
Inlet Needle, Seat, & Clip (Incl. 31)

Spring Clip
Primer Bulb/Retainer Ring

Main Nozzle Tube

Carburetor Tube

"O" Ring, Main Nozzle Tube

High Speed Bowl Nut
Bowl Nut Washer

Welch Plug, Idle Mixture Well
Welch Plug, Atmospheric Vent

Repair kit (Incl. Items Marked *)

38

CRAFTSMAN 4-CYCLE ENGINE MODEL NO. 143.006714

KEY PART

NO. NO.

DESCRIPTION

----590702
1 590599A

2 590600

3 590696
4 590601
5 590697

6 590698
7 590699

8 590700

11 590703
12 590535

Recoil Starter

Spring Pin (Incl. 4)

Washer

Retainer

Washer

Brake Spring
Starter Dog

Dog Spring
Pulley & Rewind Spring Ass y.

Starter Housing Ass'y, (40

degree grommet)

Starter Rope ( 98" X 9/64"

dia.)

13 590701

--S

O--2

Starter Handle

KEY PART
NO, NO.

----590739
3 590740

6 590616

7 590617

8 590618A

11 590638
12 590535

13 590701
14 590760

DESCRIPTION

Rewind Starter
Retainer

Starter Dog
Dog Spring
Pulley & Rewind Spring Ass'y

Starter Housing Ass'y (40
degree grommet)
Starter Rope(Length 98" x 9/

64" dia.)
Starter Handle

Spring Clip

39

® Registered Trademark I _'* Trademark of Seam, Roebuck and Co.

© Seam, Roebuck and Co.

® Marca Registrada / _M Mama de F&brica de Seam, Roebuck and Co.

174409 03.09.00 VB Printedin U.S.A.