Owner`s manual | Craftsman 388 Lawn Mower User Manual

Owner's Manual
JCRAFTSMAN'J
6.0 HORSEPOWER
21" MULTI-CUT
ROTARY LAWN MOWER
Model No.
917,388731
•
•
•
•
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 ourCraftsman website:www.sears.com/craftsman
...........................................
Safety Rules .........................................
Assembly ..............................................
Operation ..............................................
Maintenance Schedule ......................
Maintenance .......................................
,...2
2
5
6
10
10
Product Specifications ........................ 11
Service and Adjustments .................... 13
Storage ...............................................
14
Troubleshooting ................................. 15
Repair Parts ........................................
32
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 workmanship.
If this CraftsmanLawn Mower is used for commercial or rentalpurposes, 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 givesyou specificlegal rights,and you may also have otherrightswhich
varyfrom state to state.
Sears, Roebuckand Co., D/817 WA, HoffmanEstates, Illinois60179
IMPORTANT: This cutting machine is capable of amputating hands and feet and
throwing objects, Failure to observe the following safety instructions could result in
sedous injury or death.
I.GENERAL
OPERATION
• Read, understand, and follow all
instructions on the machine and Jnthe
manual(s) before starting. Be thoroughly familiar with the controls and the
proper use of the machine before
starting.
• 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.
• Stop the blade(s) when crossing gravel
drives, walks, or roads.
• Stop the engine (motor) whenever you
leave the equipment, before cleaning
the mower or 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 mechanism 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 immedialety for the cause.
Vibration is generally a waming of
trouble.
• Always wear safety goggles or safety
glasses with side shields when
operating mower.
• Keep children out of the tdmming area
and under the watchful care of another
responsible adult.
• Be aled 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,
II. SLOPE OPERATION
• Never make adjustments or repairs with
the engine (motor) running. Disconnect
Slopes are a major factor related to slip
and fall accidents which can result in
the spark plug wire, and keep the wire
severe injury. All slopes require extra
away from the plug to prevent accidencaution. If you feel uneasy on a slope, do
tal starting.
not mow it.
• Keep nuts and bolts, especially blade
DO:
attachment bolts, tight and keep
equipment in good condition.
• Mow across the face of slopes: never
• Never tamper with safety devices.
up and down. Exercise extreme caution
Check their proper operation regularly.
when changing direction on slopes.
• Keep machine free of grass, leaves, or
• Remove obstacles such as rocks, tree
other debds build-up. Clean oil or fuel
limbs, etc.
spillage. Allow machine to cool before
• Watch for holes, ruts, or bumps. Tall
stodng.
grass can hide obstacles.
• Stop and inspect the equipment if you
DO NOT:
strike an object. Repair, if necessary,
• Do not trim near drop-offs, ditches or
before restarting.
embankments. The operator could lose
• Never attempt to make wheel height
footing or balance.
adjustments while the engine (motor) is
• Do not trim excessively steep slopes.
running.
• Do not mow on wet grass. Reduced
• Grass catcher components are subject
footing could cause slipping.
to wear, damage, and deterioration,
III. CHILDREN
which could expose moving parts or
allow objects to be thrown. Frequently
Tragic accidents can occur if the operator
check components and replace with
is not a_ertto the presence of children.
Children are often attracted to the
manufacturer's recommended parts,
when necessary.
machine and the mowing activity. Never
assume that children will remain where
• Mower blades are sharp and can cut.
Wrap the blade(s) or wear gloves, and
you last saw them.
use extra caution when servicing them.
• Do not change the engine governor
3
setting or overspeed the engine.
ALook for this symbol to point out
important safety precautions. It means
CAUTION!!! BECOME ALERT!!! YOUR
SAFETY IS INVOLVED.
A WARNING: In order to prevent
accidental starting when setting up,
transporting, adjusting or making repairs,
always disconnect spark plug wire and
place wire where it cannot contact spark
plug.
AWARNING: 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.
AWARNING: Battery posts, terminals and
related accessories 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 accassoriNswere available when this lawn mower was produced. They are not
shipped with your mower. They are also availal_eat most Sears retail outletsand service
centers. Most Sears stores can also order repair pads for you, when you providethe model
numberof your lawn mower. Some of these accessories may not apply to your lawn mower.
LAWN MOWER PERFORMANCE
FOR REAR DISCHARGE LAWN MOWERS
FOR
REAR DISCHARGE
GRASS
LAWN CATCHERS
MOWERS
MULCHER KITS
STABILIZER
FOR
SIDE DISCHARGE
GRASS
LAWN CATCHERS
MOWERS
_
GAS CANS
LAWN MOWER MAINTENANCE
MUFFLERS
BELTS
AIR FILTERS
BLAOES
BLADE AOAPTERS
SPARK PLUGS
WHEELS
ENGINE OIL
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 (_ASOLINE in
the engine.
Your new lawn mower has been assembled at the factory with the exception
of those parts left unassembl;_d for
shipping purposes. All pads such as nuts,
washers, bolts, etc., necessary to complete 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
CARTON
LAWN
MOWER
Operator presence
control bar
" Upper
Mowing position
Lower handle
FROM
3-position
Handle
asjustment_
bracket
1. Remove loose parts included with
• mower.
2. Cut down two end comers of carton
and lay end panel down flat.
3. Remove all packing materials except
padding between upper and lower
handle and padding holding operator
presence control bar to upper handle.
4. Roll lawn mower out of carton and
check carton thorougly for additional
loose parts.
HOWTO
MOWER
SET UPYOUR
Handle
pin
J
\
TO INSTALL
LAWN
\
ATI'ACHMENTS
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.
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 matedal from
around control bar.
Your handles may be adjusted for your
mowing comfort. Refer to Service and
Adjustments section of this manual.
5
KNOW YOUR LAWN MOWER
READ THIS OWNER'S MANUAL AND 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
OR WARNING
ON
ENGINE
OFF
FAST
SLOW
CHOKE
FUEL
OIL
OANGER, KEEP HANDS
AND FEET AWAY
Operator presence control
bar
Starter
zone control cable
Grass catcher
Engineoilcap
with dipstick
Primer
Gasoline fillercap
Mulcherdoor
IMPORTANT: This lawn mower is
shipped WITHOUT OIL OR
GASOLINE in the engine.
Lawn mower housing
Air filter
(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 turns when the engine is running.
Operator Presence Control Bar- must be
helddown to the handle to startthe engine,
Release to stop the engine,
Primer - pumps additionalfuel from the
carburetor to the cylinderfor use when
startinga cold engine,
Starter Handle - used for startingthe engine,
R
[O CONVERT
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.
MOWER
Your lawn mower was shipped ready to
be used as a muleher. To convert to
bagging or discharging:
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.
HOWTO USEYOUR LAWN MOWER
ENGINE SPEED CONTROL
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 lawn 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
adiuster lever toward wheel. Move
wheel up or down to suit your requirements. 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.
Pivotpins
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 MULCHING1. Rear door closed.
2. Mulcher door closed.
FOR REAR BAGGING 1. Grass catcher installed.
2. Mulcher door closed.
FOR SIDE DISCHARGING 1. Rear door closed.
2. Side discharge deflector installed.
_,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.
LowerWheels for High Cut
ever
RaiseWheels for Low Cut
7
Open
Mulcher
Door
Discharge
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
manuat.
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 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
read the dipstick.
3. Reinstall engine oil cap and tighten.
• Check oil level before each use. Add
oil if needed. Fill to full line on dipstick.
• Change the o'ltafter every 25 hours of
operation or each season. You may
need to change the oil more often
under dusty, dirty conditions.
ADD GASOLINE
NOTE: Before filling fuel tank, remove
and discard the debris plug that is inside
the tank.
• 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.
_WARNING:
Experience indicates that
alcohol blended fuels (called gasohol or
using ethanol or methanol) can attract
moisture which leads to separation and
formation of acids during storage. Acidic
gas can damage the fuel system of an
engine while in storage. To avoid engine
problems, the fuel system should be
emptied before storage of 30 days or
longer. Drain the gas tank, start the
engine and let it run until the fuel lines
and carburetor are empty. Use fresh fuel
next season. See Storage Instructions for
additional information. Never use engine
or carburetor cleaner products in the fuel
tank or permanent damage may occur.
A 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.
Gasolinetiller
Engineoil
cap
cap
(Discard
debris plug
inside)
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 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,
R
MOWINGTIPS
MULCHING
• Under cedain 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.
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 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 perpendicular 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 graining of the lawn.
MOWINGTIPS
Max
1/3
MAINTENANCE
SCHEDULE
FILL IN DATES
AS YOU COMPLETE
REGULAR SERVICE
SERVICE
Check for Loose Fasteners
:Clean/Inspect Grass Catcher
(_fEquipp_)
"_/
"
'
'
14,/ 14'
Clean Lawn Mower
Clean Under Drive Cover
IPower-Propelled Mowers)
Check ddve belt/pulleys
(Power-Propelled Mowers)
V'
14.
14.
14.
14"
CbecWSharderVReplace Blade
If
LubricationChart
Clean Battery/Recha •
IElectdc Start Mowe_jr_
I_
Check Engine
3
14.
II/1.2
Clean Air Filter
Inspect Muffler
Clean or Replace Spark Rug
14. =
14.
Reptace Air Filter Paper Cartridge
under 8 h=a_
14.;t
1 . Change
mote often when operating
2 * Service
3 - R_le_e
4 - Charge
m_re o_rt when ope_a_ r_ _n dirty or dust_ conditions.
blados more off=_l when mowing _ sandy soil¸
48 hour_ at end Of season.
load or in h4gh ambkSnt temperatures
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
14._
Oil Level
Change En_ne O_1
GENERAL
DATES
14.
EACH USE
1. Check engine oil level.
2. Check for loose fasteners.
LUBRICATION
Keep unitwell lubricated(See "LUBRICATION CHART").
LUBRICATION
CHART
Wheel
adjusters
Engine oil
hinge
(_) Refer to maintenance
Handle bracket
mounting pin
"Engine"
section.
(_) Spray lubricant
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.
1t3
PRODUCT SPECIFICATIONS
SERIAL NUMBER
DATE OF PURCHASE
GASOLINE CAPACITY/TYPE:
1.6 QUARTS
UNLEADED REGULAR
OILTYPE (API-SF-SJ):
SAE 30 (ABOVE 32°F)
SAE 5W-30 (BELOW 32°F)
20 OZS.
OIL CAPACITY:
SPARK PLUG(GAP: .030")
VALVECLEARANCE:
CHAMPION
RJ19LM OR J19LM
INTAKE:
EXHAUST:
SOLID STATE IGNITION
AIR GAP:
.0125 IN.
BLADE BOLTTORQUE:
35-40 FT. LBS.
.004 - .008
.004 - .008
• The model and serial numbers wil! 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
A!waysobservesafetyruleswhenperform=ngany maintenance.
TIRES
• Keeptirosfree ofgasoline,oil,or insect
controlchemicalswhich can harmrubber.
• Avoidstumps,stones,deepruts,sharp
objectsandotherhazardsthatmaycause
tiredamage.
BLADE CARE
For best results,mower blade mustbe
keptsharp. Replace bent or damaged
blades.
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 REMOVE BLADE
1. Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.
2. Tum 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 counterclockwise.
5. 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 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.
11
• 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 adapter
keyway
Crank
BoR
Hardened
washer
GRASS CATCHER
edge
Blade
adapter
• 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 manufacturer approved replacement catcher.
Give the lawn mower model number
when ordering.
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.
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.
ENGINE
AIR FILTER
LUBRICATION
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.
Use only high quality detergent oil rated
with API service classification SF-SJ.
Select the oil's SAE viscosity grade
according to your expected operating
temperature.
SAE Vk_COSITY
GRADES
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.
TO
t.
2.
3.
CLEAN AIR FILTER
Loosen screw and tilt cover to remove.
Carefully remove cartridge.
Clean by gently tapping on a flat
surface. If very dirty, replace cartridge.
ACAUTION:
Petroleum solvents, such as
kerosene, are not to be used to clean
cartridge. They may cause deterioration of
the cartridge. Do not oil cartddge. Do not
use pressurized air to clean or dry
cartridge.
4. Install cartridge, then replace cover
making sure the tabs are aligned with
the slots in the back plate. Fasten
screw securely.
Slots
CLEANING
tack
IMPORTANT: For best performance, keep
mower housing free of built-up grass and
trash. Clean the underside of your mower
after each use.
ACAUTION:
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.
plate
Cover
3over
Ca_ridge
MUFFLER
Inspect and replace corroded muffler as it
could create a fire hazard and/or damage.
SPARK PLUG
Change your spark plug each year to
make your engine start easier and run
better. Set spark plug gap at .030 inch.
_I,CAUTION: Before performing any
sewice 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.
Med..
Handle
adjustment
bracket
LAWN MOWER
TO ADJUST CU'I-FING 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 mowing position. If the
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.
TO ASSEMBLE
GRASS CATCHER
1, Put grass catcher frame into grass 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
.- _..._.yj_'<-.--._
,.
,
i:.
,
_
, '_ \_Frame
, _ Jj_
opening
13
ENGINE
ENGINE
SPEED
Yourengine
speedhasbeenfactory
set.
Donotattempt
toincrease
engine
speed
orit may result in personal injury. If you
believe that the engine is running too fast
or too slow. take your lawn mower to a
Sears or other qualified service center for
repair and adjustment.
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 Maintenance 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
CARBURETOR
Your carburetor is not adjustable. 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 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 a Sears or other
qualified service center, which has
proper equipment and experience to
make any necessary adjustments.
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.-.-_._.'_
J_""_i,,
x,Y/
//
.//_
Fold Forward
For Storage
_"
_,/
\_\ ts_tl, ¢/
,;" ,t,
,',_
/,
,,"z
_Y"
I
#
:'ackward
owing
Lower tandle
High
You can fold your lawn mower handle for
storage.
t. 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.
\
,,
LMoed.
_/.__._
Handlepin
_
14
Position
Handle
adjustment
bracket
-position
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.
TROUBLESHOOTING
PROBLEM
Does not start
ENGINE OIL
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 plug hole into cylinder.
3, Pull starter handle slowly a few times
to distribute oil.
4, 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
protective 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
engone and exhaust areas are still
warm.
A, 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,
CHART
CAUSE
CORRECTION
1. Dirty air filter.
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.
15
1. Clean/raplace 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.
TROUBLESHOOTING
PROBLEM
Loss of power
CHART
CAUSE
CORRECTION
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.
Poor cut uneven
1. Worn, bent or loose blade.
2. Wheel heights uneven.
3. Buildup of grass, leaves
and trash under mower.
Excessive
vibration
1. Worn, bent or loose blade.
2. Bent engine crankshaft.
Starter rope hard
topull
1. Engine flywheel brake is on
when control bar is release€
2. Bent engine crankshaft.
3. Blade adapter broken.
4. Blade dragging in grass.
1. Set to "Higher Cur'
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.
2. Contact a Sears or other
qualified service center.
1. Depress controlbar to
upper handle before
pullingstarter rope.
2. Contacta Sears or other
qualifiedservice center.
3. Replace blade adapter.
4. Move lawn mowerto cut
grass or to hardsurface.
Grass catcher
not filling (if so
equipped)
1, Cutting height too low.
2. Lift on blade worn off.
3. Catcher not venting air.
1. Raise cutting height.
2. Replace blade.
3. Clean grass catcher.
Hard to push
1, Grass is too high or wheel
1. Raise cutting height.
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.
16
CRAFTSMAN ROTARY LAWN MOWER - - MODEL NO. 917.388731
"_'s_l
4
23 _
_/44
_7°
_
68
67
56
54
CRAFTSMAN ROTARY LAWN MOWER-KEY
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
2O
21
22
23
24
25
26
27
28
29
30
31
33
PART
NO.
131696
166860X479
161105X479
132601
63601
131959
66426
74780512
154132
160-754
176556
750097
86899X004
136376
51793
147286
16T_946X479
176004_6
16713eX004
167133X604
165858
168360X2O4
16683'5
751153
166236X479
166243x479
851856
152124
160835X007
19112222
165760
87877
DESCRIPTION
ControlBar
UpperHan_e
Lower Handle
Rcl_Guide
Locknut 1/4-20
Hand_ Bolt
Wirelie
Hex Boft 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
Han(teKnob
Haiq_n Colter
H_j3Rod
Support Bracket
Screw
AxleArm Assembly- LF
AxleArmAssembly- RF
Rear Skirt
SaiectorSpring
Rear DoorAssemblyKit(Incl.Spdegs)
Locknut5/16-18
Hand_ BracketAssembly(Left)
HandleBracketAssembly(Right)
Screw1/4-20 x 3/8
HingeSpring
Wheel AdjustingBracket- Front
Spacer
Clip on DischargeGuard
Sc_ectorKnob
KEY
NO.
MODEL NO. 917.388731
PART
NO.
34
36
36
37
3_
39
4O
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
67
68
70
167130X004
166785
16(_28
151162
164362
83923
77400
88662
165766
165767
165912
150406
85463
63124
167131X004
151161
57143
73990500
166878
851(]84
850L)63
851074
165833
851514
161551
166113
165755
......
---
161058
176104
DESCRIPTION
Axle Ann Assembly - LR
Lock.nut 5/16-18
Shoaider Boff 5/16-18
WheelAssembly
Shoulder Bolt
Ranged Locknut
Hubcap
Hinge Screw
Spdng (LH)
Spring (RH)
Door Bolt
Hex Head Thread Rolling Screw 3/8-16 x 1
Danger Decal
Nut
Axle Ann Assembly - RR
Wheel
WaveWasher
Nut
Housing Assembly (Incl. Ref. #17, 18 & 46)
Hex Head Screw 3/8-24 x 1-3/8 Grd. 8
Haiical Lockwasher
Hardened Washer
21" Blade
Blade Adapter
Adjustment Bolt
Grass Bag
Catcher Frame
Engine - (See Breakdown)
Briggs & Stratton 12HS(_/2639-B1
Warning Decal (Not Shewn)
OwnefsManuai
Available accessories not included with lawn mower:
-71 33623
Gas Can (2.5 gal.)
- 71 33500
Fuel Stai_lizer
-7133300
SAE 30W Oil (20 oz.)
CRAFTSMAN
1_
4-CYCLE ENGINE
MODEL NUMBER 12H802-2639-BI
34
1095 VALVE
GASKET SET
7'
9
43_
"A"REQUIRES SPECIALTOOLS
TO INSTALL. SEE REPAIR
INSTRUCTION MANUAL.
15 8
[1050 OWNER'S MANUAL]
20 !_"
34
S
22 _
CRAFTSMAN
4-CYCLE ENGINE
MODEL NUMBER 12H802-2639-B1
,e++
,+<":a:,:l?-
968
{_,-_
',-+,";_
++;
+:+
+++.
_
t!7+++:+;)
977 CARBURETOR
GASKET SET
365 _! i_-.,
708
617
:')
276'
121 CARBURETOR OVERHAUL KIT
708
137
617
1631/ _.;'
104
276
127
r+_<
,7o+
.-_'l
668
CRAFTSMAN
4-CYCLE ENGINE
MODEL NUMBER 12HS02-2639-B1
921
332
363_@
304
' 455_
3o5
--3
©
1210_
]
689 O
_6_
69_
I
1036 EMISSIONS LABEL
I
I
:36
60
CRAFTSMAN
MODEL NUMBER 12H802-2639-B1
4-CYCLE ENGINE
3. e._l.E_ASKET
SeT
3_
20_
842(0
524_
9_
7_..
668_
51__
4_
615
4o4_
745
616_
505 @
q'7
MODE 1 NUMBER 12H602-2639-B1
4-CYCLE ENGINE
CnAFrSMA,
KEY
htO.
1
2
3
4
5
7
8
9
10
11
12
13
16
16
20
22
23
24
25
PART
NO.
DESCRtPTtON
493260
Cylinder Assembly
399269
Kit-Bushing/Seal
299819
• Seal-Oil (Magneto Side)
493279
Sump-Engine
691160
Head-Cylinder
692249 ,+ Gasket-Cylinder Head
695250
Breather Assembly
272481 °+ Gasket-Breather
691128
Screw (Breather Assembly)
691781
Tube-Brearber
692232
• Gasket-Crankcase
690912
Screw (Cylinder Head)
691680
P_ug-Oil Drain
691451
Crar_kshafl
399781
• Seal-Oil PTO Side)
691092
Screw (Engine Sump
692315
Flywheel
222698
Key-Ftywheet
499429
Piston Assembly Standard
499430
Piston Assembly (.010" O.S,)
499431
Piston Assembly (.020" O.S.)
499432
Piston Assembly (.030" O.S.)
26
499425
Ring Set-Piston (Standard)
499426
Ring Set-Piston (.010" O.S.)
499427
Ring Set-Piston (.020"O.S.)
499428
Ring Set-Piston (.030" O.S.)
27
691866
Lock-Piston Pin
28
499423
Pin-Piston
29
499424
F_od-Connecting
32
691664
Screw Connecting Rod)
32A
695759
Screw (Connect ng Rod
33
262651
Valve-Exhaust
34
262652
Valve-Intake
35
691270
Spring-Valve Intake)
36
691270
Spring-Valve (Exhaust)
40
692194
Retainer-Valve
43
691997
Slinger-Governor/Oil
45
890646
Tappet-Valve
46
691449
Camshaft
48
498826
Short Block (Replacement
Engine 12J802*2915-B1)
50
497466
Manifold-Intake
61
272199
° Gasket-Intake
54
691650
Screw (Intake Manifold)
55
691421
Housing-Rewind Starter
58
692259
Rope-Starter (Cut to
Required Length)
60
281434
Grip-Starter Rope
65
690759
Screw (Rewind Starter)
81
691740
Lock-Muffler Screw
95
691636
Screw (Throttle Valve)
97
493267
Sha11-Throtbe
104 691242
_ Pin-Float Hinge
117 494870
Jet-Main (Standard)
497315
Jet-Main High Altitude)
121 498260
Kit-Carburetor Overhau
KEY
NO.
PART
NO.
126
127
130
133
134
137
146
159
163
187
498170
694468
Q
691203
398187
398188
O
693981 O1
690979
691753
272653,O1
691050
186
190
202
209
222
227
276
287
300
304
305
306
307
332
333
334
337
356
358
363
365
383
404
425
443
GI
$
+
DESCRIPTION
Carburetor
Plug-Welch
Valve-Throttle
Float-Carburetor
Valve-Needle/Seat
Gasket-Float Bowl
Key-Timing
Bracket-Air Cleaner Primer
Gasket-Air Cleaner
Line-Fuel (Cut to Required
Length)
690877
Screw Control Bracket)
690940
Screw (Fue Tank)
691829
Link-Mechanical Governor
690319
Spring-Governor
692467
Bracket-Control
690783
Control Lever-Governor
271716 _1 Sealing Washer
690940
Screw (Dipstick Tube)
692038
Muffler
695892
Housin Q--Blower
691106
Screw ('Blower Housing)
690450
Shield-Cylinder
690345
Screw (Cylinder Shield)
690662
Nut (Flywheel)
802574
Armature-Magneto
691061
Screw (Armature Magneto)
802592
Spark Plug
692390
Wire-Stop
497316
Engine Gasket Set
19069
Flywheel Puller
692524
Screw (Carburetor)
89838
Wrench-Spark Plug
690272
Washer (Governor Crank)
690670
Screw (Air Cleaner Cover)
692523
Screw (Air Cleaner Primer
Base)
Includedin Engine Gasket Set,Key.
No. 35B
Included in Carburetor Overhaul Kit, Key.
NO. 121
Included in Carburetor Gasket Set, Key.
No. 977
Included in Valve Overhaul Kit. Key.
No. 1095
NOTE: All component dimensions given in U.S.
inches 1 inch = 25.4 mm
38
CRAFTSMAN
4-CYCLE ENGINE
KEY
NO.
PART
NO.
445
455
456
459
505
523
524
525
529
562
884
585
592
597
601
608
613
615
616
617
621
635
668
670
684
491588
Filter-Air Cleaner Cartridge
691219
Cup-FI wheel
692299
Plate-_awl Friction
281505
PawI-Ratchat
231082
Nut (Governor Control Lever)
495264
Dipstick
692296
• Seal-Dipstick Tube
495265
Tube-Dipstick
691923
Grommet
92613
Bolt (Governor Control Lever)
692342
Cover-Breather Passage
691879
° Gasket-Breather Passage
690800
Nut (Rewind Starter)
691696
Screw (Pawl Friction Plate)
95162
Clamp-Hose
497680
Starter-Rewind
691340
Screw (Muffler)
690340
Retainer-Governor Shaft
691306
Crank-Governor
270344 _:_ SeaI-O Ring (Intake Manifold)
692310
Switch-Stop
66538
Boot-Sparkplug
493823
• Spacer (Includes 2)
692294
Spacer-Fuel Tank
690345
Screw (Breather Passage
Cover)
691855
Spring-Friction
691321 _:_ Seal-Throttle Shaft
691830
Gear-Timing
691031
• BeaI-O Ring (Dipstick Tube
692017
Assembly-Dipst ok]Tube
493880
TerminaI-Sparkplu
691155
Seat-Valve (IntakJ_
690380
Seat-Valve (Exhaust
262001
Bushing-Guide (Exhaust
63709
Bushing-Gu de ntake)
689
708
741
842
847
851
869
870
871
DESCRIPTION
MODEL NUMBER 12H602-2639-B1
KEY
NO,
PART
NO.
921
922
923
957
966
968
969
497233
692135
695891
397974
496116
692298
690700
970
691669
972
975
976
977
1019
1036
1058
1059
1095
1210
495224
493640
496115
498261
494256
695111
274265
692311
498528
498144
1211 498144
O
t
+
DESCRIPTION
Cover-Blower Housing
Spring*Brake
Brake
Cap-Fuel Tank
Base-Aft Cleaner Primer
Cover-Air Cleaner
Screw (Blower Housing
Cover)
Screw (Air Cleaner Prirner
Bracket)
Tank*Fuel
Bowl-Float
Primer-Carburetor
Set-Carburetor Gasket
Kit-Label
Label-Emissions
Owner's Manual
Kit-Screw/Washer
Set-Valve Gasket
Assembly-Pulley/Spring
(Pulley)
Assembly-Polley/Bprlng
(Spring)
Included in Engine Gasket Set, Key.
No. 358
Included in Carburetor Overhaul Kit, Key.
No. 121
included in Carburetor Gasket Sat, Key.
No. 977
Included in Valve Overhaul Kit, Key.
No. 1095
NOTE: All component dimensions given in U.S.
inches 1 inch = 25.4 mm
Get it fixed, at your home or ours!
For repair of major brand appliances in your own home...
no matter who made it, no matter who sold it!
1-800-4-MY-HOME
SM Anytime.day or 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 Aniline.
day or night
www.sears.com
For the replacement parts, accessories and owner's manuals
that you need to do-it-yourself, call Sears PartsDirectSa!
1-800-366-PART
(1-800-366-7278)
6 a.m.- 11 p.m. CST,
7 days a week
www.sears.conVpar tsdlrect
To purchase or inquire about a Sears Service Agreement:
1-800-827-6655
7 a.rn.- 5 p.m.CST,Mon.- Sat.
Para pedlr serviclode reparacidna domiclllo,
y para ordenar piezas conentrega a domicilio:
1-888-SU-HOGAR
s.
(1-888-784-6427)
AuCanada pour service en frangais:
1-877-LE-FOYER
_
(1-877.5334937)
SEARS
HomeCentral
O Seam, Roelouckand Co.
176104
10.30.00 VB
_
Registered
Trademark
Marca Re_4rada,/TM
_' }
/ TM rade
rk of Sears, Roebuck and CO.
_lr_'_i
Fr_bric0 de Sears, Roebuck and CO.
Printed in U.S,A.
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