Owner's Manual
ICRAFTSMAN'I
6.75 HORSEPOWER
21" REAR DISCHARGE
ROTARY LAWN MOWER
Model No.
917.388621
• Safety
• Assembly
• Operation
• Maintenance
• Espa_ol
• Repair Parts
CAUTION:
Read and followall
Safety Rulesand Instructions
before operatingthis equipment
Sears, Roebuck and Co., Hoffman Estates, IL 60179
visit ourCraftsmanwebsite: www.sears.corn/craftsman
Warranty ................................................. 2 Product Specifications.......................... 11
Safety Rules ........................................ 2-4 Service and Adjustments...................... 14
Assembly ................................................ 6 Storage ............................................ 15o16
Operation ............................................. 6-9 Troubleshooting .............................. 16-17
Maintenance Schedule ........................ 10 Repair Parts..................................... 34°39
Maintenance .................................... 10-13 Parts Ordering ........................ Back Cover
LIMITED TWO YEAR WARRANTY ON CRAFTSMAN POWER MOWER
For two years from date of purchase, when this Craftsman Lawn Mower ismaintained,
lubricated,end tuned up according to the operating and maintenance instructionsin
the owners manual, Sears will repair free of charge any defect in material or work-
manship.
If this Craftsman Lawn Mower is used for commercial or rental purposes, thiswarranty
appliesfor only90 days from the date of purchase.
This Warranty does not cover:
• Expendable items which become worn dudng normal use, such as rotarymower
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 appliesonly
while thisproductis in use in the United States.
This Warranty gives you specific legal rights, and you may also have other rights
whichvary from state to state.
SEARS, ROEBUCK AND CO., D/817 WA, HOFFMAN ESTATES, ILLINOIS 60179
IMPORTANT: This cutting machine iscapable of amputating hands and feet and
throwingobjects. Failure to observe the followingsafety instructionscould result in
seriousinjury or 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
rocks, toys,wire, bones, sticks,etc.,
which could be picked up and thrown
by the blade.
• Be sure the area is clear of other
people before mowing. Stop machine if
anyone enters the area.
• Do not operate the mower when
barefoot or wearing open sandals.
Always wear substantial foot 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 devicesin place.
• See manufacturer's instructionsfor
proper operation and installationof
accessories. Only use accessories
approved by the manufacturer.
• Stop the blade(s) when crossing gravel
ddves, walks, or roads.
• Stop the engine (motor) whenever you
leave the equipment, before de_ming
the mower or unclogging the chute.
• Shut the engine (motor) off and wait
untilthe blade comes tocomplete stop
before removing grass catcher.
• Mow onlyin daylight or good artificial
light.
• Do not operate the machine while
u_der the influence of elcahoI or drugs.
• Never operate machine in wet grass.
Always be sure of your footing: keep a
firm hold on the handle and walk; never
ruO,
• Disengage the self-propelled mecha-
nism or ddve clutch on mowers so
equipped before starting the engine
(mator).
• 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.
I1.SLOPE OPERATION
Slopes are a major factor related to slip
and fall accidents which can result in
severe iniury. All slopes require extra
caution. If you feel uneasy on a slope, do
notmow it.
DO:
• Mow across the face of slopes: never
up and down. Exercise extreme caution
when changing direction on slopes.
• Remove obstacles such as rocks,tree
limbs, etc.
• Watch for holes, ruts,or bumps. Tall
grass can hide obstacles.
DO NOT:
• Do not trim near dropoffs, ditches or
embankments. The operator could lose
footing or balance.
• Do not trim excessively steep slopes.
• Do not mow on wet grass. Reduced
footing could cause slipping.
II1.CHILDREN
Tragic accidents can occur if the operator
is not alert to the Ixesenco 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 watchfulcare of another
responsible adult.
• Be alert and turn machine off if children
enter the area.
• Before and while walking backwards,
leek behind and down for small
children.
• Never allow children to operate the
machine.
• Use extra care when approaching bUnd
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 refuel the machine indoors.
- Never storethe 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 plug wire, and keep the wire
away from the plug to prevent acciden-
tal starting.
• Keep nuts and bolts, especially blade
attachment bolts, tight and keep
equipment in good condition.
• Never tamper with safety devices.
Check their proper operation rogulady.
• Keep machine free of grass, leaves, or
other debds build-up. Clean oil or fuel
spillage. Allow machine to cool before
stodng.
• Stop and inspect the equipmentif you
strike an object. Repair, If necessary,
before restarting.
• Never attempt to make wheel height
adjustments while the engine (mo'_or)is
running.
• Grass catcher components are subject
to wear, damage, and deterioration,
which could expose moving parts or
allow objects to be thrown. Frequently
check components and replace with
manufacturer's recommended parts,
when necessanJ.
• Mower blades are sharp and can cut.
Wrap the blade(s) or wear gloves, and
use extra caution when servicingthem.
• Do not change the engine governor
setting or overspeed the engine.
3
ALook for this symbol to point out
importantsafety precautions. It means
CAUTION!I! BECOME ALERTlll YOUR
SAFETY IS INVOLVED.
£ CAUTION: In order toprevent
accidental starting when setting up,
transpor_ng, adjusting or making repairs,
always disconnect spark plug wire and
place wire where it cannot contact spark
plug.
£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 birth defects or other
reproductive harm.
£WARNING: Battery posts,terminals and
related accessories contain lead and
lead compounds, chemicals known to the
State of California tocause cancer and
birth defects or other reproductive harm.
Wash hands after handling.
_ CAUTION: Mufflerand other engine
parts become extremely hot dudng
operation and remain hot after engine
has stopped. To avoid severe burns on
contact,stay away _om these areas.
These accossodeswere availablewhenthislawn mowerwas prnduced.They are not
shippedwith your mower.Theyare alsoavailableat mostSearsretailou_etsandservice
centem. MostSearsstorescanalsoorderrepairpartsforyou, when youprovide_le model
numberof yourlavmnx_r. Someoftheseaccesso_s maynotapplyto yourlawnn_wer.
LAWN MOWER PERFORMANCE
CLIPPING DEFLECTOR
FOR REAR DISCHARGE LAWN MOWERS MULCHER KITS
GRASS CATCHERS
FOR
REAR DISCHARGE
LAWN MOWERS
GRASS CATCHERS
FOR
SIDE DISCHARGE
LAWN MOWERS
STABILIZER
GAS CANS
LAWN MOWER MAINTENANCE
MUFFLERS AIR FILTERS SPARK PLUGS
BELTS BLADES BLADE ADAPTERS WHEELS ENGINE OIL
4
Read these instructionsand this manual
in itsentirety before you attempt to
assemble or operate your now lawn
mower.
IMPORTANT: This lawn mower is
shippedWITHOUT 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. All partssuch as nuts,
washers, belts, etc., necessary tocom-
plete the assembly have been 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 fiat.
3. Remove all packing matedala except
padding between upper and lower
handle and padding holding operator
presence centrol 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 looks into 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
for your mowing comfort. Referto "AD-
JUST HANDLE" in the Service and
Adjustmentssection of this manual.
control bar
Upper
Liftu
position
Lower handle
Squeeze _1_--_ Handle pin
3-Positico
handle
adj
bracket
J
TO INSTALL ATTACHMENTS
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.
KNOWYOURLAWNMOWER
READTHISOWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR
LAWN MOWER. Compare the illustrationswith yourlawn mower to familiarize yourself
with the locationof variouscontrols 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
presence control bar
Gasoline lifter cap
Airfilter
Grass
Engine oil cap
with d
Primer
Muffler
Housing
Wheeladjuster
IMPORTANT: This lawn mower is shipped (oneachwheel)
WITHOUT OIL OR GASOLINE in the engine.
MEETS CPSC SAFETY REQUIREMENTS
Sears rotarywalk-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 bar - must be Primer - pumps additionalfuel from the
helddown to the handle to start the carburetor to the cylinderfor use when
engine. Release to stop the engine, starting a coldengine.
Starter handle - used for startingthe
engine. 6
Theoperationofanylawn
mowercanresultinforeign
objectsthrownintothe
eyes,whichcanresultin
severeeye damage.
Always wear safety glasses or eye
shields while operating your lawn mower
or performingany 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
_LCAUTION: Federal regulations require
an engine controlto be installed on this
lawn mower in order to minimize the dsk
of blade contact injury.Do notunder any
circumstances attempt to defeat the
functionof the operatorcontrol. 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 CU'R'ING HEIGHT
Raise wheels for low cut and lower
wheels for high cut, adjust cuttingheight
to suit your requirements. Medium
positionis best for most lawns.
To change cutting height, squeeze
adjuster lever toward wheel. Move
wheel up or down to suit your require-
ments. Be sure all wheels are in the
same setting.
NOTE: Adjuster is propedy positioned
when plate tab inserts into hole in lever.
Also, 9-positionadjusters (if so equipped)
allow lever to be positioned between the
plate tabs.
Lowe._rWheels_r HighCut _
RaiseWheelsfor LowCut Lever
TO CONVERT MOWER
Yourlawnrn_werwas shippedreadyto be
usedas a mulcber.Toconvert tohagging :
REAR BAGGING
• Liftreindoorof thelawnmower and placa
thegrasscatcharframe hooksonto_e
doorpivotpins.
• To converttomulchingopera'_;_n,remove
grasscatcher and dose reardoor.
ACAUTION: Do not run your lawnmower
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
TO EMPTY GRASS CATCHER
1. L_ Upon 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; it will cause unnecessary wear.
Grass
catcher
frame
handle
BEFORE STARTING ENGINE
ADD OIL
Your lawnmower is shipped without oil in
the engine. Engine holds 20 oz. of oil.
For type 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 oil to 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 ifneeded. Fillto 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
• Fill fuel tank. Use fresh, clean, regular
unleaded gasoline with a minimum of
87 octane. Do not mix oil with gaso-
line. Purchase fuel in quantitiesthat
can be used within 30 days to assure
fuel freshness.
_.WARNING: Experience indicates that
alcohol blended fuels (called gasohol or
using ethanol or methanol) can attract
moisture which leads to separation and
formationof acids dudng storage. Acidic
gas can damage the fuel system of an
engine while in storage. To avoid engine
problems, the fuel system should be
emptied beforestorage of 30 days or
longer. Drain the gas tank, start the
engine and let it run untilthe fuel lines
and carburetorare empty. Use fresh fuel
nextseason. See Storage Instructionsfor
additional information. Never use engine
or carburetor cleaner products in the fuel
tank or permanent damage may occur.
CAUTION: Filltobottomof gas tank
filler neck. Donot overfill. Wipe off any
spilled oil or fuel. Do not store, spillor
use gasoline near an open flame.
Gasoline
fillercap
Engine
oil cap
TO START ENGINE
NOTE: Due to protective coatingson the
engine, a small amount of smoke may be
present dudng the initial use of the
product and should be considered
normal.
1. To start a cold engine, push pdmer
three (3) times before tryingto start.
Use a firm push. This stepis not
usually necessary when starting an
engine which has already runfor 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 repeat priming steps. In
warmer weather over pdming may cause
flooding and engine will notstart. If you
do flood engine, wait a few minutes
beforeattempting to start and do not
repeat pdming steps.
MOWlNGTIPS
• Undercertainconditions,suchasvery
tallgrass,itmaybenecessarytoraise
theheightofcuttoreducepushing
effortandtokeepfrom ovedoading the
engine and leaving dumps 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 cot 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
(pushingspeed) and/or nJnthe lawn
mower over the area a second time.
• If a trailof clippingsisleft onthe dght
side of a rear 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 dustwith
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 clippingsand chaff.
This will help engine air flow and
extend engine llfe.
MULCHING MOWING TIPS
IMPORTANT: For best performance,
keep mower housingflee of built-up
grass and trash. See "CLEANING" inthe
Maintenance sectionof this manual.
• The special mulchingblade will recut
the grass clippingsmany times and
reduce them in size so that as they fall
onto the lawn they will disperse intothe
grass and not be noticed.Also, the
mulched grass will biedegrade quickly
to provide nutrientsfor the lawn.
Always mulchwith your highest engine
(blade) speed as this will provide the
best racutting action ofthe blades.
• Avoid cutting yourlawn when it iswet.
Wet grass tends to form clumpsand
interfereswith the mulchingaction. The
besttime to mow your lawn is the eady
afternoon. Atthis time the grass has
dried and the cewiy cut area will not be
exposed to the direct sun.
• For best results, adjust the lawn mower
cuttingheight so that the lawn mower
cutsoff only the topone-third ofthe
grass blades. If the lawn is overgrownit
will be necessary to raise the height of
cut to reduce pushing effortand to keep
from overloading the engine and
leaving dumps 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
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 cuttingpattern 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.
9
eEOOL S V,O0
Check lor Loose Fasteners V' I_
Clean/Inspect Grass Catcher
IfEquipped) I/ _ f/'
M Clean Lawn MoWer I_ Vs
O Clean Under DriVe Cover
(Power*Propelled Mowers! it/
Check ddve belt/ ulleys
I E _ower'ProP etl_PMowers) I,/
Check/Sharpen/Replace Blade I_ I
Lubdcation Ch_rt _ i
Clean BaitePj/RechaLme
Electdc Stad Mowers'_ _ it/4
g
E Check Engine Oil Level lt_
N Chan_e EnQineOil I_t_
G Clean Air Filter I_ 2
I Insl_ Muffler IV/
N Clean or Replace Spark Plug I_
E Replace Air FIRerPaper Cartridge IS'=
1 . Change more often when operalmg urlder a _ _ad Of in high amb;e_t tert_t m'_
2 *Se_ mJ0_eoldenwhe_ opmating indidy of duety condit=ons
3 * Replace b_s more o_en when mo_ng in s_r_y _c,d
4. Charge 4_ houn_at end_ m
GENERAL RECOMMENDATIONS
The warranty on this lawn mower does
notcover items that have been subjected
to operator abuse or negligence. To
receive full value from the warranty,
operator must maintain mower as
instructedin this manual.
Some adjustments will need to be made
periodically to 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.
BEFORE EACH USE
1, Check engine oil level,
2. Check for loose fasteners.
LUBRICATION
Keep unit well lubdcated (See "LUBRI-
CATION CHART'),
LUBRICATION CHART
(_
(
I / Brake
I \ spring
bracket
ne oil
Rear
(_) Handle bracket mounting pins door hJnge
(_ Spray lubricant
_) Bee "ENGINE" In Maintenance section.
10
IMPORTANT: Do not oil or grease
plastic wheel bearings, viscous
lubricantswill attractdust and dirt that
will shorten the life of the self-lubricat-
ing beadngs. If youfeel they must be
lubdcated, use only a dry, powdered "
graphite type lubricant sparingly.
PRODUCT SPECIFICATIONS
SERIAL NUMBER:
DATEOF PURCHASE:
GASOLINE CAPACITY/TYPE: 1.5 QUARTS UNLEADED REGULAR
OILTYPE (API-SF-SJ): SAE 30 (ABOVE 32°F)
SAE 5W-30 (BELOW 32°F)
OIL CAPACITY: 20 OZS.
SPARK PLUG (GAP: .045") CHAMPION RESISTOR TYPE RJtgLM4
BLADE BOLTTORQUE: 35-40 FT. LBS.
The model and sedal numbers will be found on a decal attached to the rear of the
lawn mower housing. Record beth sedal number and date of purchase in the space
provided above.
LAWN MOWER
Always observe safety roles when
performing any maintenance.
TIRES
• Keep tires free of gasoline, oil,or insect
control chemicals which can harm
robber.
• Avoid stumps,stones, deep rots, 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
1. Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.
2. Turn lawn mower on its side. Make
sure air filterand carburetor are up.
3. Use a wood block between blade and
mower housing to prevent blade from
turning when removing blade bolt.
NOTE; Protectyour hands with gloves
and/or wrap blade with heavy cloth.
4. Remove blade belt by turning counter-
clockwise.
5. Remove blade and attaching hard-
ware (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 condi-
tion to work properly. Replace adapter if
damaged.
TO REPLACE BLADE
1. Positionthe blade adapter on the
engine crankshaft. Be sure key in
adapter and crankshaft keyway are
aligned.
2. Positionblade on the blade adapter
aligning the two (2) holes in the blade
with the raised lugs on the adapter.
3. Be sure the trailingedge of blade
(opposite sharp edge) is up toward
the engine.
4. Install the blade bolt with the lock
washer and hardened washer into
blade adapter and crankshaft.
5. Use block of wood between blade and
lawn mower housing and tightenthe
blade belt, turning clockwise.
• The recommended tighteningtorque is
35-40 fL Ibs.
IMPORTANT: Blade bolt isgrade 8 heat
treated.
Bladeadapter Crankshaft
Key_ keyway
Blade Crank
washer Trailingedge Bladeadapter
11
TO SHARPEN BLADE
NOTE: We do notrecommend sharpen-
ing blade - but ifyou do, be sure the
blade is balanced.
Care shouldbe 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 gdnding wheel. Do not attempt
to sharpen while on the mower.
• To check blade balance, ddve 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.
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
normaluse itwill wear. Ifcatcher needs
replacing,replace only with a manufac-
turer approved replacement catcher.
Give the lawn mower model number
when ordering.
ENGINE
LUBRICATION
Use only highquality detergent oil rated
with API service classificationSF-SJ.
Select the oil's SAE viscositygrade
according to your expected operating
temperature.
Change the oil after every 25 hours o
operationor at least once a year if the
lawn mower is not used for 25 hours i
one year.
Check the crankcase oil level before
starting the engine and after each fiv_
hours of continuous use. Tighten oil p
securely each time you check the oil
level.
TO CHANGE ENGINE OIL
NOTE: Before tippinglawn mower to
drain oil, drain fuel tank by running
engine untilfuel tank isempty.
1. Disconnect spark plug wire from s
plug and place wire where it cenn
come in contact with sparkplug.
2. Remove engine oil cap; lay aside
dean surface.
3. Tip lawn mower on itsside as shc
and drain oil into a suitable contai
Rock lawn mower back and forth I
remove any oil trapped inside of
engine.
4. Wipe off any spilledoil on lawn m(
and on side of engine.
5. Fill engine with oil. (See "ADD OIL
the Operation section of this manu
6. Reconnect spark plug wire to spar
plug.
NOTE: Although multi-vlaousityoils
(5W30, 10W30 etc.) improve starting in
cold weather, these multi-viscosityoils
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.
12
AIR FILTER
Your engine will not run properly and may
be damaged by using a dirty air filter.
Replace the air filter every year or after
every 100 hours of operation, more often
if you mow in very dusty,dirty conditions.
Do notwash air filter.
TO CHANGE AIR FILTER
1. Remove the air filterby turning
clockwise to the stop and pull away
from collar.
2. Remove filter from inside of cover.
3. Clean the inside of the cover and the
collar to remove any dirt accumula-
tion.
4. Insert new filter into cover.
5. Put air filter cover and filter into collar
aligningthe tab with the slot.
6. Push in on cover and turn counter-
clockwise to tighten.
Collar
Slot
Clip
Turn
clockwise
to
Airfilter
Turn
counter-
Air filter covet clockwise to tighten
MUFFLER
Inspect and replace corroded muffler as it
could create a fire hazard and/or dam-
age.
SPARK PLUGS
Replace spark plugs at the beginning of
each mowing season or after every 100
hours of operation, whichever occursfirst.
Spark plug type and gap setting are
shown in "PRODUCT SPECIFICATIONS"
section of this manual.
CLEANING
IMPORTANT: For best performance,
keep mower housing free of built-up
grass and trash. Clean the underside of
your mower after each use.
_-CAUTION: Disconnect spark plugwire
from spark plug and place wire where it
cannot come in contact with the spark
plug.
• 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 resultin
shortened engine life.
13
ACAUTION: Before performing any
service or adjustments:
1, Release control bar and stop engine.
2. Make sure the blade and all moving
parts have completely stopped.
3. 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 ofthis manual.
REAR DEFLECTOR
The rear deflector, attached between the
rear wheels of your mower, is provided to
minimize the possibilitythat objects will
be thrownout of the rear of the mower
intothe operator's mowing position. If the
deflectorbecomes damaged, it should be
replaced.
TO ADJUST HANDLE
The handle on your lawn mower has
three (3) height positions- adjust to
heightthat 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.
High,
3-position
handle
TO ASSEMBLE GRASS CATCHER
1.Put grass catcher frame intograss bag
with dgid part of bag on the bottom.
Make sure the fTame handle is outside
of the beg top.
2.Slip vinyl bindings over frame.
NOTE: Ifvinyl bindingsare too stiff,hold
them in warm water fora few minutes. If
bag gets wet, let it dry before using.
ACAUTION: Do not runyour lawn
mower without clippingdeflector or
approved grass catcher in place. Never
attempt to operate the lawn mowerwith
the rear door removed or propped open.
Catcher _
frame r _-"_
hand__
"_ _--'_ Frame
I _ opening
ENGINE
ENGINE SPEED
Your engine speed has been factory set.
Do not attempt to increase engine speed
or itmay result in personal injury.If you
believe that the engine is running too fast
or too slow,take your lawn mowerto a
Sears or other qualified service center for
repair and adjustment.
CARBURETOR
Your carburetor has a non-adjustable
fixed main jet for mixturecontrol. If your
engine does not operate propedy due to
suspected carburetor problems, take your
lawn mower to a Sears or other qualified
service center for repair and/or adjust-
ment.
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 thinkthe
engine-governed high speed needs
adjusting, contact a Sears or other
qualified service center, which has proper
equipment and expedence to make any.
necessary adjustments.
14
Immediatelyprepareyourlawnmowerfor
storageattheend of the season or if the
unit willnot be used for 30 days or more.
LAWN MOWER
When lawn mower is to be stored for a
periodof time, clean it thomaghly,remove
all dirt,grease, leaves, etc. Store in a
clean, dryarea,
1. Clean entire lawn mower (See
"CLEANING" in the Maintenance
section of this manual).
2. Lubricate as shown in the Mainte-
nance section of this manual.
3. Be sure that all nuts, bolts,screws,
and pins are securely fastened,
Inspect moving parts for damage,
breakage and wear. Replace if
necessary.
4. Touch up all rusted or chipped paint
surfaces; sand lightlybefore painting.
HANDLE
Youcan fold your lawn mower handle for
storage.
1. Loosen the two (2) handle knobs on
sides of the upper handle and allow
handle to fold down to the rear.
2. 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 itto 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.
Operatorpresence----._
conlrolbar i)V/ Fold Z[_.,
forward,_
Upperhandle----v/////_r _/ _/!
j"
L°nwdelr__.._ j_ " _
b word
_ >_ position
pin
Squeeze
handle
djustment
acket
ENGINE
FUEL SYSTEM
IMPORTANT: It isimportant toprevent
gum depositsfrom forming in essential
fuel system parts suchas carburetor, fuel
filter,fuel hose, or tank during storage.
Also, experience indicates that alcohol
blended fuels (called gasehol 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.
1. Drain the fuel tank.
2. Start the engine and let it run untilthe
fuel lines and carburetor are empty.
• Never use engine or carburetor cleaner
productsin 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 depositsduring storage. Add
stabilizerto gasoline in fuel tank or
storage container. Alwaysfoflow 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.
ENGINEOIL
Drain oil (with engine warm) and replace
with clean engine oil. (See "ENGINE" in
the Maintenance section of this manual).
15
CYLINDER
1. Remove spark plug,
2. Pour one ounce (29 ml) of oil through
spark plug hole into cylinder.
3. Pullstarter handle slowlya few times
to distribute oil.
4. Replace with new spark plug,
OTHER
• Do not store gasoflne from one season
to another.
• Replace your gasoline can if your con
starts torust. Rust and/or dirtin your
gasoline will cause problems.
TROUBLESHOOTING CHART
PROBLEM CAUSE
Doeenotstad 1. Dirtyairfifier`
Loss of power
Poor cut -
Jnavell
• If possible, store your unit indoorsand
cover it to give protectionfrom dust and
dirt.
• Cover your unitwith a suitable protec-
tive cover that does not retain moisture.
Do not use plastic. Plastic cannot
breathe, which allows condensationto
form end will cause your unitto rust.
IMPORTANT: Never cover mower while
engone and exhaust areas are stillwarm.
_, CAUTION:Never storethe 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
stodng in any enclosure.
2. Out of fuel,
3. Stale fuel.
4. Water in fuel.
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. Rear of lawn mower
housing or cutting blade
dragging in heavy grass.
2. Cutting too much grass.
3. Dirty air filter.
4. Buildupof grass, leaves,
and trash under mower.
5. Too much oil in engine.
6. Walking speed too fast.
I 1. Wom, bent or loose tdade.
2. Wheel heights uneven.
3. Buildup of grass, leaves
and trash under mower.
1. Worn, bent or loose blade.
2. Bent engine crankshaft.
CORRECTION
1. Clean/replace air filter.
2. Fill fuel tank.
3. Drain tank and refillwith
fresh, clean fuel.
4. Drainfuel tank and
carburetor and refilltank
with fresh gasoline.
5. Connect wire to plug.
6. Replace spark plug.
7. Tighten blade bolt or
replace blade adapter.
8. Depress control barto
handle.
9. Replace control bar.
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. Tighten
blade bolt.
2. Set all wheels at same
height.
3. Clean underside of
mower housing.
Excessive 1. Replace blade. Tighten
,'lbratlon blade bolt.
2. Contact a Sears or other
qualified service center.
16
TROUBLESHOOTING CHART
PROBLEM CAUSE CORRECTION
Starter rope hard 1. Engine flywheel brake is on I. Depress control bar to
topull when control bar is release( upper handle before
pulling starter rope.
2. Bent engine crankshaft. 2. Contact a Sears or other
qualified service center.
3, Blade adapter broken. 3. Replace blade adapter.
4. Blade dragging in grass. 4. Move lawn mower to cut
grass orto hard surface.
Sraas catcher 1. Cuttingheight too low. 1. Raise cutting height.
_otfllllng (ifao 2. Lifton blade worn off. 2. Replace blade.
Klulpped ) 3. Catcher notventing air. 3. Clean grass catcher.
!Hardtopush 1. Raise cutting height.1. Grass istoo high or wheel
height is too low.
2. Rear of lawn mower
housing or cutting blade
dragging in grass.
3. Grass catcher toofull.
4. Handle height position not
dght for you.
2. Raise rear of lawn mower
housing one (1) setting
higher,
3, Empty grass catcher.
4. Adjust handle height to suit.
17
68
CRAFTSMAN ROTARY LAWN MOWER-- MODEL NUMBER 917.388621
33
34
4g
33
_9
37
\
36
27
CRAFTSMAN ROTARY LAWN MOWER- - MODEL NUMBER 917.388621
KEY PART
NO, NO, DESCRIPTION
1 131696 ControlBar
2 166860X479 Upper Hendle
3 161105X479 Lower H_dle
4 132001 RopeGuide
5 132004 Locknut 11420
6 131959 Handle Bolt
7 66426 WitoTia
8 74780512 Hex Bolt 5/16-18 x 5/4
11 156577 Engine Zone ControlCable
12 750634 Hex Washer Head Screw #10-24 x 1/2
13 850733)(004 Up-Stop Bracket
14 136376 Handle Knob
15 51793 Hairpin Cotter
17 165946X479 Support Bracket
t8 17600406 S_ew
19 16'132004 Axle Arm Assembly - LF
20 167133X004 AxleAm_ Assembly - RF
21 165858 Rear Skirt
22 168360X004 Selector Spring
23 166875 Rear Doo¢Assembly Kit (tncL Springs)
24 751153 Locknut 5/16-18
25 166236X479 Handle Bracket Assembly (LeS)
26 166243x479 Handle Bracket Assembly (Right)
27 851856 Screw 1/4-20 x 3/8
29 160835X607 Wheel Adjus6ng Bracket - Front
30 19112222 Spacer
33 87877 Setector Knob
34 167130X004 AxleArm Assembly - LR
35 166785 Locknut 5/16-18
36 160828 Shoulder Bolt5/16-18
37 151162 WheelAssembly
38 164362 Shoulder Bolt
39 83923 Flanged Locknut
40 77400 Hubcap
KEY PART
NO. NO. DESCRIPTION
41 88652 HingeScmw
42 165766 Sprk_g(LH)
43 165767 SpringJRH)
44 165912 Door Bolt
45 150406 Hex Head Thraad Rolling Screw/3/8-16 x 1
46 85463 Danger Decal
47 63124 Nut
48 167131X004 AxleArm Assembly - RR
49 151161 Whe_
50 57143 WaveWasher
51 73990500 Nut
52 175871 Housing Assembly (InCl. Ref. #17, 18 & 46)
53 851084 Hex Head Screw 3/8-24 x 1-318Grd. 8
54 850263 Helicet Lockwasher
55 851074 HardenedWasher
56 175064 21" Blade
57 851514 Blade Adapter
58 161551 Adjustment Bolt
67 166113 Grass Bag
68 165755 Catcher FParne
70 ...... Engine - (See Breakdown)
Craftsman 143.016702
- - 161058 Warning Decet (NotShown)
- - 178933 Owner's Manual
Available accessories not included with lawn mower:
71 33623 Gas Can ( 2.5 gal.)
7133500 FuetStabiSzet
7133000 SAE 30W Oil (20 o7-)
71 33085 Chute Deflector
NOTE: All component dimensions given in U.S. inches.
1 inch = 25,4 mm
CRAFTSMAN 4-CYCLE ENGINE MODELNUMBER143.016702
9C0
40O
130
370C
110_
120
119
416 125
36
CRAFTSMAN 4-CYCLE ENGINE MODELNUMBER143.016702
KEY PART
NO, NO.
1 37465
2 26727
6 33734
7 36557
12 36775
12A 36558
12B 36694
14 28277
15 30589
16 34839A
17 31335
18 651018
19 36281
20 32600
3g 37464
40 40027
40028
41 40025
42 40006
40007
43 20381
46 36777
46 3261gA
48 27241
50 37460
52 29914
69 37609
70 37606
72 37614
75 27897
80 30574A
81 30590A
62 30591
83 30588A
86 650488
89 611004
90 611112
92 650815
93 650816
100 34443C
101 610118
103 651007
104 37480
110 37047
119 36787
120 36825
125 36760
126 37289
130 6021A
DESCRIPTION
Cylinder (Ind. 2 & 20)
Dowet Pin
Breather Element
Breather Ass'y. (thcL 6 & 12A)
Breather Tube
Breather Cover & Tube
(Includes Key Number 12B)
Breather Tube Elbow
Washer
Governor Rod (Incl. 14)
Governor Lever
Governor Lever Clamp
Screw, Ton( T-15, 8-32x19/64
Extension Spring
Oil Seal
Crankshaft
Piston, Pin & Ring Set (Std.)
Piston, P_ & Ring Set
(.010" Over Size)
Piston & Pin Ass'y. (Std.)
(tncledes Key N_nber 43)
40026 Piston & Pin Ass'y. (.010"
Over Size) (Incl. Key No. 43)
Ring Set (Std.)
Ring Set (.010" OS)
Piston Pin Retalnthg Ring
Connecting Rod Assembly
(Includes Key Number 46)
Connecting Rod Bolt
Valve Lifter
Camshaft (Exhaust MCR)
(Indudes Key Number 104)
Oil Pump Ass*y.
* Mounting Flange Gasket
M.c_un6_j FIm_Je (Incl. 7283)
Oil Drain plug
Oil Seal
Governor Shaft
Washer
Governor Gear Assembly
(Includes Key Number 81)
Governor Spool
Screw, 1/4-20 x 1-1/4"
Flywheel Key
Flywheel
Beaeville Washer
Flytvheel Nut
Solid State IgnRion
Spark Plug Cover
Screw, 1--15, 10-24 x 15116"
Cam Bushing
Ground Wire
• Cylinder Head Gasket
Cytk_de_" Head
Exhaust Valve (1/32" OS)
(Includes Key Number 151)
37266 Exhaust Valve (Std,)
(Includes Key Number 151)
Intake Vah, e (Std.) (thcL 151)
Screw, 5/16-18 x 1-1/2"
KEY PART
NO. NO.
135 37598
150 31672
151 31673
151A 40017
16g 36783
172 36784
174 30200
178 29752
182 6201
184 26756
185 37466
186 32653
189 650839
lgl 36559A
195 610973
207 4336
216 33086
223 65045
224 36786
236 650932
239 34336
241 36919
245 36905
250 37122
260 36980
261 30200
262 650831
263 37184
275 37462
277 650988
285 350g0A
287 650926
290 29774
292 26460
298 28763
300 36916
301 36246
305 35647
306A 37611
308 37610
307 35499
309 650562
309A 651047
310 35648
313 34080
347 651038
370A 36261
370R 37317
380 640271
390 690739
406 37613
416 36085
DESCRIPTION
Res. Spark Plug (RJ19LM4)
Valve Spring
Valve Spring Cop
Intake Valve Seal
* VaNe Cover Gasket
VaNe Cove€
Screw, 10-24 x 9/16"
Nut & Lock Washer, 1/4-26
Screw, 1/4-28 x 7/8"
* Carb. To intake Pipe Gasket
Intake Pipe
Governor Link
Screw, 1/4-20 x 3/8"
S.E. Brake Bracket (Incl. 195)
Terminal
Throttle Unk
R.F_M. Adjusting LeVer
1Scraw, 1/4-20 x 1"
* Intake Pipe Gasket
Screw, 16-32 x 49164"
* Air Ctaar, er 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"
Recoil Gdlla (Black)
Muffler
Screw, 1/4-20 x 2-5/16"
Starter Cup
Screw, 8-32 x 21164"
Fuel Une
Fuel Une Clamp
Screw, 10-32 x 35164"
Fuel Tank (Incl. 292 & 301)
Fuel Cap
Oil FUl Tube
Fill Tube Bracket
* =O"-Rthg
=O'-Rlug
Screw, 10-32 x 1/2"
Screw, T15, 10-24 x 21/32
Dipstick
Spacer
Screw, 10-32 x 51/64"
Lubrication Decal
Hot Surface Oecal
Carburetor (Incl. 184)
Rewind Starter
Gasket Set (Includes AU * )
Spark Arrestor Kit (Includes
Key Number 417) (Optional)
417 650760 Screw, 6-32 x 3/8" (Optlenat)
900 --- Rep. S/B 750865, 71-999
..... RPM High 2900 to 3200
NOTE'. This engine could have been built with
560702 starter.
NOTE: All component dimensions given In U.S.
371ncbes. 1 Inch = 25.4 mm
CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.016702
KEY PART
NO. NO.
640271
1" 31615
2 31767
4 631184
5 631183
6 640070
7 650506
16 631807
17 651025
16 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
40 640030
44 27110A
47 630746
48 631027
60 632760B
DESCRIPTION
Carburetor (IncL 184 of Engine Parts Ust)
Throttle Shaft & Lever Assembly
Throttle Retum Spring
• Dust Seal Washer
* Dust Seal (Threttle)
ThrOttle Sbut_r
* Shutter Screw
Fuel Fitting
Throttle Crack Screw/Idle Speed Screw
Tension Spring
Idle Restdotor Screw
Idle Restrictor Scrwe Cap (Black)
Pleat Bowt
• Float Shaft
Float
• Float Bowl "O" Ring
* Inlet Needle, Seat. & Clip (InCl. 31)
Spring C.p
Pdmer Bulb/Retainer Ring
Main Nozzle Tube
Carburetor Tube
• _O" Ring, Makl Nozzle Tube
High Speed Bowl Nut
• Bowl Nut Washer
* Welch Plug, Idle Mixture Well
• Welch Plug. Atmosphedc Vent
Repair k8 (Ir_l. Items Marked * In Notes)
38
CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.016702
"_11
Bu5
O--3
KEY PART
NO. NO. DESCRIPTION
590702 Recoil Starter
1" 5g05ggA SpdngPin (IncL 4)
2 590600 Washer
3 590696 Retainer
4 590601 Washer
5 590697 Brake S=prdog
6 590698 Starter Dog
7 590699
Dog,Spring
Pulley & RewindSwing Ass'y
8 590700
11 590703 Starter HousingAssembly
(40 degree grommet)
12 590535 Starter Rope
(98" tong x 9/64" diameter)
13 590701 Starter Handle
1_--14
KEY PART
NO. NO. DESCRIPTION
590739 Rewtnd Starter
3" 590740 Retainer
6 590616 Starter Dog
7 590617 Dog Spring
8 590618A Pulley & Rewind SwingAss'y
.---= 11 590638 Starter HousingAssembly
(40 degree grommet)
12 590535 Starter Rope
(98" long x 9/64_ diameter)
13 590701 Starter Handle
III I! --7 14 590760 Swing Clip
Forrepairofmajorbrand appliancesInyourown home...
nomatterwhomadeit,nomatterwhosold
1-800-4-MY-HOME _ ,_#rne,dayorr_.t
(1-8_) (U.S.A. and Canada)
Forrepairofcarryqnproductslikevacuums, lavmequipment,and
electronics,callforthenearestSearsPartsand RepairCenter.
1-800-488-1222 Ar,_'ne,dayorr_gH(US.A.only)
_.se_r_corrl
Forthereplacementparts,accessoriesandowner'smanuals
thatyouneedtodo-it-yourself,callSearsPartsDirect_!
1-800-366-PART 6a.m.-11 pJn., 7daysaweek
(1-800-366-7278) (U.S.A.oNy)
w,w.sear=cm_a_,,ct
To purchaseor inquireabouta SeersServiceAgreement
or SearsMaintenanceAgreement:
1-800-827-6655 (U.s._.) 1-800-361-6665 (Canada)
7a.m.- 5 p.m.,CST, Men. - Sat. 9a.m.-8 p.m.EST, M- F,4 p.m.S_
Pafape_ servidode reparac_ a
domicilo,yparaorde_arpiezas:
1..888-SU-HOGARsM
(1_88-_
H°meCent l® J
® Registered Trademark / TM Trademark / s_ Sewice Mark of Seam, Roebuck and Co.
® Marca Registrada I TM Marca de FabriCa/ s_vMarca de Servicio de Seam, Roebuck and Co.
MCMarque de commerce / MOMarque deposde de Seam, Roebuck and Co.
178933 03.02.01 BY Printedin U.S.A.
