Owner's Manual
6.75 HORSEPOWER
21" REAR DISCHARGE
ROTARY LAWN MOWER
Model No.
917.388620
Safety
Assembly
Operation
Maintenance
Espa_ol
Repair Parts
CAUTION:
Read and follow all
Safety Rules and Instructions
before operating this equipment
Sears, Roebuck and Co., Hoffman Estates, IL 60179
Visit our Craftsman website: www.sears.com/craftsman
Warranty ............................................... 2
Safety Rules ......................................... 2
Assembly .............................................. 5
Operation .............................................. 6
Maintenance Schedule ...................... 10
Maintenance ....................................... 10
Product Specifications ........................ 11
Service and Adjustments .................... 14
Storage ............................................... 15
Troubleshooting ................................. 16
Repair Parts ........................................ 35
Parts Ordering ..................... Back Cover
LIMITED TWO YEAR WARRANTY ON CRAFTSMAN POWER MOWER
For two years from date of purchase, when this Craftsman Lawn Mower is maintained,
lubricated, and tuned up according to the operating and maintenance instructions in
the owner's manual, Sears will repair free of charge any defect in material or work-
manship.
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 dudng 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 dghts, and you may also have other rights
which vary from state to state.
SEARS, ROEBUCK AND CO., D/817 WA, HOFFMAN ESTATES, ILLINOIS 60179
IMPORTANT: This cutting machine is capable of amputating hands and feet and
throwing objects. Failure to observe the following safety instructions could result in
serious injury or death.
I.GENERAL OPERATION
Read, understand, and follow all
instructions on the machine and in the
manual(s) before starling. Be thor-
oughly familiar with the controls and
the proper use of the machine before
starling.
Do not put hands or feet near or under
rotating pads. 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 devices in place.
See manufacturer's instructions for
proper operation and installation of
accessories. Only use accessories
approved by the manufacturer.
Stopthe blade(s) when crossing gravel
drives, walks, or roads.
Stop the engine (motor) whenever you
leave the equipment, before cleaning
the mower or unclogging the chute.
Shut the engine (motor) off and wait
until the blade comes to complete stop
before removing grass catcher.
Mow only in daylight or good artificial
light.
Do not operate the machine while
under the influence of alcohol or drugs.
Never operate machine in wet grass.
Always be sure of your footing: keep a
firm hold on the handle and walk; never
run.
Disengage the self-propelled mecha-
nism or drive clutch on 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 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 drop-offs, 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 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 trimming area
and under the watchful care of another
responsible adult,
Be alert and turn machine off if children
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
corners, 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 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 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 regularly.
Keep machine free of grass, leaves, or
other debris 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 deterioration,
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 servicing them.
Do not change the engine governor
setting or overspeed the engine.
3
ALook for this symbo! to point out
important safety precautions. It means
CAUTION!!r BECOMEALERT!!! YOUR
SAFETY IS INVOLVED.
WARNING: In order to prevent
accidental starting when setting up,
transporting, adjusting or making repairs,
always disconnect spark plug wire and
place wire where itcannot contact spark
plug.
AWARNING: Engine exhaust, some of its
constituents, and certain vehicle compo-
nents 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 ecceseodes contain lead and
lead compounds, chemicals known to the
State of California to cause cancer and
birth defects or other reproductive harm.
Wash hands after handling.
These accessorieswere availablewhen this lawn mowerwas produced. They are not
shipped with your mower. They are also availableat mostSears retailoutletsand service
centers. Most Sears storescan alsoorder repairparts for you, when you providethe model
number ofyour lawnmower. Some of these accessoriesmay not applyto your lawn mower.
LAWN MOWER PERFORMANCE
CLIPPING DEFLECTOR
FOR REAR DISCHARGE LAWN MOWERS
GRASS CATCHERS
FOR
REAR DISCHARGE
LAWN MOWERS
MULCHER KITS
_1 GRASS CATCHERS
FOR
SIDE DISCHARGE
LAWN MOWERS
STABILIZER
GAS CANS
LAWN MOWER MAINTENANCE
MUFFLERS
BELTS BLADES
AIR FILTERS
BLADE ADAPTERS WHEEL_
SPARK PLUGS
ENGINE OIL
4
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. A!l parts such as nuts,
washers, bolts, etc., necessary to com-
plete the assembly have been placed in
the parts bag. To ensure safe and proper
operation of your lawn mower, all parts
and hardware you assemble must be
tightened securely. Use the correct tools
as necessary to ensure proper tightness.
TO REMOVE LAWN MOWER FROM
CARTON
1. Remove loose parts included with
mower.
2. Cut down two end corners 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 thorougly for 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 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,
2. Remove protective padding, raise
upper handle section into place on
lower handle and tighten both handle
knobs.
3. 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 _.
controlbar _
f_ Liftu_;,_ "_
Upper handle _ //// S" /;_'
_.___:_ Mowing
°siti°n
Lower handle
3-Position
handle
,, , adjustment
bracket
Handle
pin
KNOWYOUR LAWN MOWER
READTHIS OWNER'S MANUALAND SAFETY RULESBEFORE OPERATINGYOUR
LAWNMOWER, Comparetheillustrationswithyour lawnmowertofamiliarizeyoumelf
withthe locationofvariouscontrolsand adjustments.Save thismanual forfuture
reference.
These symbols may appear on your lawn mower or in literature suppliedwiththe
product. Learnand understandtheirmeaning.
CAUTION ENGINE ENGINE FAST SLOW CHOKE FUEL OIL DANGER. KEEP HANDS
CA WARNING ON OFF AND FEET AWAY
Operator presencecontrolbar
Engine zone control cable
Handle knob
Engine oil cap with
Gasoline filler cap
IMPORTANT: This lawn mower is
shipped without oil or gasoline in the
engine.
Wheael adjuster
(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 Commis-
sion. The blade turns when the engine is running.
Operator presence control bar - must be Primer - pumps additional fuel from the
held down to the handle to start the carburetor to the cylinder for use when
engine. Release to stop the engine, starting a cold engine.
Starter handle - used for starting the
engine.
The operation of any lawn
mower can result in
foreign objects thrown into
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
The engine speed was set at the factory
for optimum performance. Speed is not
adjustable.
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 fawn mower.
TO ADJUST CUTTING HEIGHT
Raise wheels for low cut and lower
wheels for high cut, adjust cutting height
to suit your requirements. Medium
position is 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 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.
PlateTab
LowerWheelslfor High Cutm,,,__ I
"_ _.ever
RaiseWheels forLowCut
TO CONVERT MOWER
Your lawn mower was shipped ready to be
used as a mutcher.Toconvertto bagging:
REAR BAGGING
Liftrear door ofthe lawn mower and place
the grasscatcherframe hooksonto the
doorpivot pins.
To convertto mulchingoperation,remove
grass catcherand dose rear door.
ACAUTION: 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.
Pivot pins Grass catcher
handle
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 clippings from bag using both
frame handle and bag handle.
NOTE: Do not drag the bag when
emptying; it will cause unnecessary wear.
handle "_ I_,
BEFORESTARTINGENGINE
ADDOIL
Yourlawnmowerisshippedwithoutoilin
theengine. 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 lawnmowar 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 not over fill.
NOTE: Allow oil to settle down into
engine for accurate reading. To read
proper level, tighten engine oil cap, then
remove it to road 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 ever./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 quantities that
can be used within 30 days to assure
fuel freshness.
AWARNING: Experience indicates that
alcohol blended fuels (called gasohol or
using ethanol or methanol) can attract
moisture which leads to separation and
formation of acids during storage. Acidic
gas can damage the fuel system of an
engine while in storage. To avoid engine
problems, the fuel system should be
emptied before storage of 30 days or
longer. Drain the gas tank, start the
engine and let it run until the fuel lines
and carburetor are empty. Use fresh fuel
next season. See Storage instructions for
additional information. Never use engine
or carburetor cleaner products in the fuel
tank or permanent damage may occur.
_, CAUTION: Fill to bottom of gas tank
filler neck. Do not overfill. Wipe off any
spilled oil or fuel. Do not store, spill or
use gasoline near an open flame.
Engineoil cap
__._=_l..._ _'- Gasolinefiller
TO START ENGINE
NOTE: Due to protective coatings on the
engine, a small amount of smoke may be
present during the initial use of the
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 is not
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 repeat pdming 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.
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.
For side discharge lawn mowers,
cutting in a counter-clockwise direction,
starting at the outside of the area to be
cut, spreads grass clippings more
evenly and puts less load on the
engine. To keep clippings off of
walkways, flower beds, etc., make the
first cuts in a clockwise direction.
Pores in cloth grass catchers can
become filled with dirt and dust with
use and catchers will collect less gross.
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 MOWINGTIPS
IMPORTANT: For best performance,
keep mower housing free of built-up
grass and trash. 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 biodegrode 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 gross. For
extremely heavy mulching, reduce your
width of cut by overlapping previously
cut path and mow slowly.
Certain types of gross 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 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 groining of the lawn.
MAX 1_
9
AS YOU COMPLETE JO_'_'_ _,-_/_._ _""I'/_"."_ _ "_ 0 v .
REGULAR SERVICE _._/_._ _=f_ERVICE DATES
Check for Loose Fasteners M _'
Clean/Inspect Grass Catcher
M (If Equipped) II/ II/ I_
Clean Lawn Mower V'
Clean Under Drive CoverfPower-Propelled Mowers)
Check drive beri!pulleys
S (Power-Prot_dled Mowers) II_
Check/Sharpen/Replace Sl_de f//$
Lubrication Chart I_
_lean Battery/Recha
Etactdc Start Mowe_jr_ It/ I_1
E 3hack Engine Oil Level
N Change EngineOil I/1,2 --
G Clean Air Filter if 2
I Inspect Muffler l#/
Ni Clean or Replace Spark Rug (p/
E Replace Air Filtar Paper Cartridge II/=
1 Change mote often when operating under a _leavy load or _nhigh ambient temperatures
2. _ er,_pce more often when operat_lg _n diny ¢r dusly conditions
3. Replace blades more otten whe_ mowing in _ndy sod.
4. Gharg e 48 hours at end of _ason.
GENERAL RECOMMENDATIONS
The warranty on this lawn mower does
not cover items that have been subjected
to operator abuse or negligence. To
receive full value from the warranty,
operator must maintain mower as
instructed in this manual.
Some adjustments will need to be made
periodically to properly maintain your
unit.
All adjustments in the Service and
Adjustments section 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
assures proper air-fuel mixture and
helps 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 lubricated(See "LUBRI-
CATIONCHART").
LUBRICATIONCHART
•)Wheel adjuster
\
dl
_)Brake
spring
bracket
_Handle bracket
mounting pin
(I) Refer to maintenance "Engine" section.
_) Spray lubricant
IMPORTANT: Do not oil or grease
plastic wheel bearings, viscous lubri-
cants 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 - SJ): SAE 30 (ABOVE 32°F)
SAE 5W-30 (BELOW 32°F)
OIL CAPACITY: 20 OZS.
SPARK PLUG(GAP: .030") CHAMPION RJ19LM OR J19LM
BLADE BOLT TORQUE: 35-40 FT. LBS.
The model and serial numbers will be found on a decal attached to the rear of the
lawn mower housing.Record both serial number and date of purchase in space
provided above.
LAWN MOWER
Always observe safety rules when
performing any maintenance,
TIRES
Keep tires free of gasoline, oil, or insect
control chemicals which can harm
rubber.
Avoid stumps, stones, deep ruts, sharp
objects and other hazards that may
cause tire damage.
BLADE CARE
For best results, mower blade must be
kept sharp. Replace bent or damaged
blades.
TO REMOVE BLADE
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 filter and carburetor are up.
3. Use a wood block between blade and
mower housing to prevent blade from
turning when removing blade bolt.
NOTE: Protect your hands with gloves
and/or wrap blade with heavy cloth.
4. Remove blade bolt 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. Position the blade adapter on the
engine crankshaft. Be sure key in
adapter and crankshaft keyway are
aligned.
2. Position blade on the blade adapter
aligning the two (2) holes in the blade
with the raised lugs on the adapter.
3. Be sure the trailing edge 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 tighten the
blade bolt, turning clockwise.
The recommended tightening torque is
35-40 ft. Ibs.
IMPORTANT: Blade bolt is grade 8 heat
treated.
TO SHARPEN BLADE
NOTE: We do not recommend sharpen-
ing 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.
11
Lockwasher
Blade
adapter
Crankshaft
bolt
Crank
/ /
Hardened edge Bladeadapter
washer
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, replace only with a manufac-
turer approved replacement catcher.
Give the lawn mower model number
when ordering.
ENGINE
LUBRICATION
Use only high quality detergent oil rated
with API service classification SF-SJ.
Select the oirs SAE viscosity grade
according to your expected operating
temperature.
SAE VISCOSITY GRADES
TO CHANGE ENGINE OIL
NOTE: Before tipping lawn mower to
drain oil, drain fuel tank by running
engine until fuel tank is empty.
1. Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.
2. Remove engine oil cap; lay aside on a
clean surface.
3. Tip lawn mower on its side as shown
and drain oil into a suitable container.
Rock lawn mower back and forth to
remove any oil trapped inside of
engine.
4. Wipe off any spilled oil on lawn mower
and on side of engine.
5. Fill engine with oil. (See "Add Oil" in
the Operacion section of this manual.)
6. Reconnect spark plug wire to spark
plug.
Container
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
1. Remove the air filter by turning
clockwise to the stop and pult 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
aligning the tab with the slot.
6. Push in on cover and turn counter-
clockwise to tighten. Turn
clockwiseto
NOTE: Although multi-viscosity oils
(5W30, 10W30 etc.) improve starting in
cold weather, these muRi-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 Collar
low on oil. _ Clip
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 SI
starting the engine and after each five (5)
hours of continuous use, Tighten oil plug Airfilter
securely each time you check the oil
level.
remove
12
Air filter cover Turn counter-
clockwise to
tighten
MUFFLER
Inspect and replace corroded muffler as it
could create a fire hazard and/or dam-
age.
SPARK PLUG
Change your spark plug each year to
make your engine start easier and run
better. Set spark plug gap at .030 inch.
CLEANING
IMPORTANT: For best performance,
keep mower housing free of buiif-up
grass and trash. Clean the underside of
your mower after each use.
_I_CAUTION: Disconnect spark plug wire
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 result in
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 of this manual.
REAR DEFLECTOR
The rear deflector, attached between the
rear wheels of your mower, is provided to
minimize the possibility that objects will
be thrown out of the rear of the mower
into the operator's mowing position, If the
deflector becomes damaged, it should be
replaced.
DISCHARGE GUARD
The discharge guard, attached to the
discharge opening of your lawn mower, is
provided to prevent the possibility of
injury resulting from objects being thrown
out of the discharge opening into the
operator mowing position. If the discharge
guard becomes damaged, it should be
replaced.
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.
High
Med.
Low. pin
handle
adjustment
bracket
TO ASSEMBLE GRASS CATCHER
1.Put grass catcher frame intograss bag
with dgid part of bag on the bottom.
Make sure the frame handle is outside
of the bag top.
2. 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.
ACAUTION: 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
/
_t Frame
opening
ENGINE
ENGINE SPEED
Your engine speed has been factory set.
Do not attempt to increase engine speed
or it may result in personal injury. If you
believe that the engine is running too fast
or too slow, take your lawn mower to an
authorized service center for repair and
adiustment.
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 and/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 autho-
rized service center, which has proper
equipment and experience to make any
necessary adjustments.
14
Immediately prepare your lawn mower for
storage at the end of the season or if the
unit will not be used for 30 days or more.
LAWN MOWER
When lawn mower is to be stored for a
period of time, clean it thoroughly, remove
all dirt, grease, leaves, etc. Store in a
clean, dry area.
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 lightly before painting.
HANDLE
You can 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 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
controlbar
Upper
Med,
Low pin
J
3-Position
handte
adjustment
bracket
ENGINE
FUEL SYSTEM
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.
1. Drain the fuel tank.
2. 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
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.
Fold fonNard for
stroage
Fold
backward
Mowing
position
Lower handle
15
ENGINEOIL
Drain oil (with engine warm) and replace
with clean engine oil. (See "ENGINE" in
the Maintenance section of this manual).
CYLINDER
1. Remove spark plug.
2. Pour one ounce (29 ml) of oil through
spark p_ug ho_e into cylinder.
3. Pull starler handle slowly a few times
to distribute oil.
4. Replace with new spark plug.
OTHER
Do not store gasoline from one season
to another.
TROUBLESHOOTING CHART
PROBLEM CAUSE
Does not start 1. Dirty air filter,
2, Out of fuel.
3. Stale fuel
Lossof power
Poor cut -
uneven
Excessive
vibration
4. Water in fuel.
5. Spark prug 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
housingor 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. Worn, bent or loose blade.
2. Wheel heights uneven.
3. Buildup of grass, leaves
and trash under mower.
f. Worn, bent or loose blade.
2. Bent engine crankshaft.
16
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 mois-
ture. Do not use plastic. Plastic cannot
breathe which allows condensation to
form and will cause your unitto rust.
IMPORTANT: Never cover mower while
engone 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
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.
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.
1. Replace blade. Tighten
blade bolt.
12. Contact a Sears or other
qualified service center.
TROUBLESHOOTING CHART
PROBLEM CAUSE
Starter rope hard I. Engine flywheel brake is on
to pull when control bar is released
2. Bent engine crankshaft.
3. Blade adapter broken.
4. Blade dragging in grass.
CORRECTION
1, Depress control bar to
upper handle before
pulling starter rope.
2. Contact a Sears or other
qualified service center.
3. Replace blade adapter.
4. Move lawn mower to cut
grass or to hard surface.
Grass catcher 1. Cutting height too low. 1. Raise cutting height.
notfllllng(ifeo 2. Lift on blade wom off. 2. Replace blade.
equipped) 3. Catcher not venting air. 3. Clean grass catcher.
Hard to push 1. t. Raise cutting height.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.
2. Raise rear of lawn mower
housing one (1) setting
higher.
3. Empty grass catcher.
4, Adjust handle height to
suit.
17
68
67
CRAFTSMAN ROTARY LAWN MOWER-- MODEL NO. 917.388620
70
44 2
43 34
25
l i
47
22
38
37
\
27
36
KEY PART
NO. NO.
1 131696
2 166860X479
3 1611(_X479
4 132001
5 63601
6 131959
7 66426
8 7478(_12
11 156577
12 750097
13 850733X004
14 136376
15 5179_
17 165946X479
18 17600406
19 167132X(_04
20 167133X004
21 165858
22 168360X004
23 166875
24 751153
25 16r_X479
26 166243x479
27 851856
29 160635X007
30 1911_
CRAFTSMAN ROTARY LAWN MOWER -- MODEL NO. 917.388620
DESCRIPTION
KEY PART
NO. NO. DESCRIPTION
Control Bar
UpperHande
LowerH_dle
RogeGuide
Locknut 1/4-20
Handle Bblt
Wire Tie
Hex Bolt 5/16-18 x 3/4
Engine Zone Control Cable
Hex Washer Head Screw #10-24 x 1/2
Up-Stop Bracket
HandleKnob
Hairpin Cotter
Support Bracket
Sct'ew
Axle Arm Assembly - LF
Axle Arm Assembly - RF
Rear Skirt
Selector Spdng
Rear Door Assembly Kit (Incl. Springs)
Locknut 5/16-18
Handle Bracket Assembly (Left)
Handle Bracket Assembly (Right)
Screw 1/4-20 x 3/8
_1 Adjusting Bracket - Front
Spacer
33 87877
34 167130X004
3_5 166785
36 160828
37 15116_2
38 1643_
39 83923
40 774OO
41 88652
42 165766
43 165767
44 165912
45 15O406
46 85463
47 63124
48 167131X004
49 151161
50 57143
5_
52 175871
53 851084
54 85O263
56 851074
56 165833
57 851514
58 161551
67 166113
68 166755
7O
- - 161(T_8
- - 176217
Selector Knob
A)de Arm ASSembly - LR
Locknut 5/16-18
Shoulder Boft 3/16-18
Wheel Assembly
Shoulder Boft
Flanged Locknut
Hu_.ap
Hinge Screw
Spdng (LH)
S_ing(RH)
Door Bblt
Hex Head Thread Rolling Screw 3/8-16 x 1
Danger Decal
Nut
Axle Arm Assembly - RR
Who_
WaveWasher
Nut
Housing Assembly (Incl. Ref, #17, 18 & 46) .
Hex Head Screw 3/8-24 x 1-3/8 Grd. 8
Helical Lockwashor
Hardened Washer
21" Blade
Blade Adadter
Adj_nent BOb
Grass Bag
Catcher Frame
Engine - (See Breakdown)
Craftsman 143.0167O2
Waming DecaJ (Not Shown)
Ownel's ManuaJ
CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.016702
370C
120
119
130
416
182216 19 277
182
185
178
223_
125
174
/93
285
/90
103
"305
"306
195
36
CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.016702
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 37465 Cylinder IncL 2 & 20) 150 31672 Valve Spring
2 26727 Dowe Pin 151 31673 Valve Spring Cap
6 33734 Breather Element 151A 40017 Intake Valve Seal
7 36557 Breather Ass'y. (Incl, 6 & 12A) 169 36783 * Valve Cover Gasket
12 36775 Breather Tube 172 36784 Valve Cover
12A 36558 Breather Cover & Tube 174 30200 Screw, 10-24 x 9/16"
(Incl, 12B) 178 29752 Nut & Lock Washer, I/4-28
12B 36694 Breather Tube Elbow t82 6201 Screw, 1/4-28 x 7/8"
14 28277 Washer 184 26756 * Carburetor To Intake Pipe
t 5 30589 Governor Rod (Incl. 14) Gasket
16 34839A Governor Lever 185 37466 Intake Pipe
17 31335 Governor Lever Clamp 186 32653 Govemor Link
18 651018 Screw, Torx 1"-15, 189 650839 Screw, 1/4-20 x 3/8"
8-32 x 19/64" 191 36559A S.E. Brake Bracket (Incl. 195)
19 36281 Extension Spring 195 610973 Terminal
20 32600 Oil Seal 207 4336 Throttle Link
30 37464 Crankshaft 216 33086 R.RM. Adjusting Lever
40 40027 Piston, Pin & Ring Set (Std.) 223 65045 1Screw, 1/4-20 x 1"
40028 Piston, Pin & Ring Set 224 36786 * Intake Pipe Gasket
.010" OS) 238 650932 Screw, 10-32 x 49/64"
41 40025 Piston & P n Ass'y. 239 34338 * Air Cleaner Gasket
(Std.) (Incl. 43) 241 36919 AirCleaner Collar
40026 Piston & Pin Ass'y, 245 36905 Air Cleaner Filter
(,010" OS) (IncL 43) 250 37122 Air Cleaner Cover
42 40006 Ring Set (Std.) 260 36980 Blower Housing
40007 Ring Set (.010" OS) 261 30200 Screw, 10-24 x 9/16"
43 20381 Piston Pin Retaining Ring 262 650831 Screw, 1/4-20 x 1/2"
45 36777 Connecting Rod Ass'y. 263 37184 Recoil Grille (Black)
(Incl. 46) 275 37462 Muffler
46 32610A Connecting Rod Bolt 277 650988 Screw, 1/4-20 x 2-5/16"
48 27241 Valve Lifter 285 35000A Starter Cup
50 37460 Camshaft 287 650926 Screw, 8-32 x 21/64"
(Exhaust MCR)(Inc. Ref.104) 290 29774 Fuel Line
52 29914 Oil Pump Ass'y. 292 26460 Fuel Line Clamp
69 37609 * Mounting Flange Gasket 298 28763 Screw, 10-32 x 35/64"
70 37608 Mounting Flenge 300 36916 Fuel Tank (Incl. 292 & 301)
(Incl. 72 thru 83) 301 36246 Fuel Cap
72 37614 Oil Drain Plug 305 35647 Oil FillTube
75 27897 Oil Seal 305A 37611 Fill Tube Bracket
80 30574A Governor Shaft 306 37610 * "o'-Ring
81 30590A Washer 307 35499 "O'-Ring
82 30591 Governor Gear Ass'y, 309 650562 Screw, 10-32 x 1/2"
(Incl. 81) 309A 651047 Screw, T15, 10-24 x 21/32
83 30588A Governor S)p(ool 310 35648 Dipstick
86 650488 Screw, 114-20 x 1-1/4" 313 34080 Spacer
89 611004 Flywheel Key 347 651038 Screw, 10-32 x 51/64"
90 611112 Flywheel 370A 36261 Lubrication Decal
92 650815 Belleville Washer 370R 37317 Hot Surface Decal
93 650816 Flywheel Nut 380 640271 Carburetor Incl. 184)
100 34443C Solid State Ignition 390 590739 Rawnd Starter
101 610118 Spark Plug Cover 400 37613 Gasket Set
103 651007 Screw, T-15, 10-24 x 15/16" (Incl. Items Marked*)
104 37480 Cam Bushing 416 36085 Spark Arrestor Kit (Incl.
t 10 37047 Ground Wire 417)(Optional)
119 36787 " Cylinder Head Gasket 417 650760 Screw, 8-32 x 3/8" Optional)
120 36825 Cylinder Head 900 -- Rep acement S/B 750865,
125 36780 Exhaust Valve (1/32" OS) order from 71-999
(Incl. 151) RPMHigh 2900 to 3200
37288 Exhaust Valve (Std.)
(Incl. 151 NOTE: This engine could have been built with
126 37289 Intake Valve (Std. (Incl. 151) 590702 starter
130 6021A Screw, 5/16-18 x 1-1/2
135 37598 Resistor Spark Plug NOTE: All component dimensions given in U.S.
(RJ19LM4) inches 1 inch = 25.4 mm
37
CRAFTSMAN 4-CYCLE ENGINE
MODEL NUMBER 143.016702
KEY
NO.
mm
1
2
4
5
6
7
16
17
18
20
20A
25
27
28
29
30
31
35
36
36A
37
40
44
47
48
6O
?E_7
PART
NO. DESCRIPTION
640271 Carburetor (Incl. 184 of Engine Parts List)
31615 Throttle Shaft & Lever Assembly
31767 Throttle Return Spring
631184 * Oust Seal Washer
631183 * Oust Seal (Thro01e)
640070 Throttle Shutter
650506 * Shutter Screw
631807 Fuel Fitting
651025 Throttle Crack Screw/Idle Speed Screw
630766 Tension Spring
640027 Idle Restrictor Screw
640200 Idle Restdctor Scrwa Cap (Black)
631867 Float Bowl
631024 * Float Shaft
632019 Float
631028 * Float Bowl "O" Ring
631021 * Inlet Needle, Seat, & Clip (Incl. 31)
631022 Spring Clip
640259 Primer Bulb/Retainer Ring
640080 Main NoZZleTube
632766 Carburetor Tube
632547 * "O" Ring, Main Nozzle Tube
640030 High Speed Bowl Nut
27110A * Bowl Nut Washer
630748 * Welch Plug, Idle Mixture Well
631O27
Repair kit _ncl. Items Marked * in Notes)
Welch Plu , Atmospheric Vent
632760B
38
CRAFTSMAN 4-CYCLE ENGINE
MODEL NUMBER 143,016702
KEY
NO,
1
2
3
4
5
6
7
8
11
12
13
PART
NO.
590702
590599A
590600
590696
590601
590697
590698
590699
590700
590703
590535
590701
DESCRIPTION
Recoil Starter
_OadnhgePin(Incl. 4)
Retainer
Washer
Brake Spring
Starter uog
Dog Spring
Pulley & Rewind Spring Ass'y
Starter Ho_sing Ass'y.
(40 degree grommet)
Starter Rope
{_98" X 9/64" dia.)
starter Handle
KEY
NO.
3
6
7
8
11
12
13
14
PART
NO.
590739
590740
590616
590617
590618A
590638
590535
590701
590760
DESCRIPTION
Rewind Starter
Retainer
Starter Dog
DOg Spdng
Pulley & Rewind Spring Ass'y
Stader Rousing Ass'y
(40 degree grommet)
Starter Rope
(Length 98" x 9/64" dla.)
Starter Handle
Spring Clip
39
Get it fixed, at your home or ourst
For repair of major brand appliances in your own home...
no matter who made it, no matter who sold it!
1-800-4-MY-HOM Es. Anytir_,dayo, night
(1-800-469-4663)
www.sears.com
To bring in products such as vacuums,
lawn equipment and electronics for repair, call for
the location of your nearest Sears Parts & Repair Center.
1-800-488-1222 A°yt,._,d_yor night
www.sears.com
For the replacement parts, accessories and owner's manuals
that you need to do-it-yourself, call Sears PartsDirectSM!
1-800-366-PART 6a.m.-11p.m.CST,
(1-800-366-7278) 7daysaweek
www.sears.com/partsdlrect
To purchase or inquire about a Sears Service Agreement:
1-800-827-6655
7 a.m.- 5p.m.CST,Mon.- Sat.
Para pedk serviciode reparaci6n a domicilio,
y para ordenar plezas con entrega a domicilio:
1-888-SU-HOGAR _
(1-888-784-6427)
Au Canada pour service en franc,,ais:
1-877-LE-FOYER _
(1-877-533_937)
© Se_l_k and Co.
® RegisteredTrademark / rMTrademark of Sears, Roebuckand Co.
i_ Ma_ca Registrada/ TMMarca de Fdbdcade Seam, Roebuckand Co,
176217 _I_00 VE Printed in U.S.A.