Craftsman 917.387255 Owner`s manual
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Craftsman 917.387255 is a 4.0 horsepower, 20" rear discharge rotary lawn mower. It includes a variety of features to make lawn care easier and more efficient. The powerful 4.0 horsepower engine provides ample power to cut through even the thickest grass, while the 20" cutting deck ensures a wide swath with each pass. The rear discharge design directs clippings away from the operator, providing a clear view of the cutting area. The Craftsman 917.387255 also features an adjustable cutting height, allowing you to customize the cut to your desired length.
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Owner's Manual
£RI:IFTSI41:IN
4.0 HORSEPOWER
20" REAR DISCHARGE
ROTARY LAWN MOWER
Model No.
917.387255
• Safety
• Assembly
• Operation
• Maintenance
• EspaSol
• 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 Craftsmanwebsite: www.sears.condcraftsman
Warranty
Safety Rules
Assembly
Operation
Maintenance Schedule
Maintena, nce ,
. .
;
2 Product Specifications _
2 Service and Adjustments
4 Storage
5 Troubleshooting
8 Repair Parts
8 Parts Ordering
9
11
13
14
30
Back Cover
LIMITED ONE YEAR WARRANTY ON CRAFTSMAN POWER MOWER
For one year 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 Craftsman Lawn Mower is used for commercial or rental purposes, this warranty applies for only @0days from the date of pumhase.
This Warranty does not cover:
• Expendable items which become wom during normal use, such as rotary mower blades, blade adapters, belts, air cleaners and spark plug.
• Repairs necessary because of operator abuse or negligence, including bent crank-
shafts and the failure to maintain the equipment according to the instructions con- tained in the owner's manual.
Warranty service is available by returning the Craftsman power mower to the nearest
Sears Service Center/Department in the United States. This warranty applies only while this product is in use in the United States.
This Warranty gives you specific legal rights, and you may also have other rights which
vary from state to state.
SEARS, ROEBUCK AND CO., D/817 WA, HOFFMAN ESTATES, ILLINOIS 60179
Safety standards require operator pres-
ence controls to minimize the dsk of injury.
Your unit is equipped with such controls.
Do not attempt to defeat the function of the operator presence controls under any circumstances.
TRAINING:
• Read this operator's manual carefully.
Become familiar with the controls and know how to operate your mower properly. Learn how to quickly stop mower.
• Do not allow children to use your mower.
Never allow adults to use mower without proper instructions.
• Keep the area of operation clear of all
persons, especially small children and pets.
• Use mower only as the manufacturer intended and as described in this manual.
• Do not operate mower if it has been dropped or damaged in any manner.
Always have damage repaired before using your mower.
• Do not use accessory attachments that are not recommended by the manufacturer. Use of such attachments may be hazardous.
• The blade turns when the engine is running.
PREPARATION:
• Always thoroughly check the area to be mowed and clear it of all stones, sticks,
wires, bones, and other foreign objects.
These objects will be thrown by the blade
and can cause severe injury.
• Always wear safety glasses or eye shields when starting and while using your mower.
• Dress properly. Do not operate mower
2
when
barefoot or'wearing open sandals.
Wear only solid shoes with good traction when mowing.
• Check fuel tank before starting engine.
Do not fill gas tank indoors, when the engine is running or when the engine is hot. Allow the engine to coo! for several minutes before filling the gas tank. Clean off any spilled gasoline before starting the engine.
• Always make wheel height adjustments before starting your mower. Never attempt to do this while the engine is running.
• Mow only in daylight or good artificial tight.
OPERATION:
• Keep your eyes and mind on your mower
and the area being cut. Do not let other interests distract you.
• Do not mow wet or slippery grass. Never run while operating your mower. Always
be sure of your footing -- keep a firm
hold on the handles and walk.
• Do not put hands or feet near or under rotating parts. Keep clear of the discharge opening at all times.
• Always stop the engine whenever you leave or are not using your mower, or before crossing driveways, walks, roads, and any gravel--covered areas.
• Never direct discharge of material toward bystanders nor allow anyone near the mower while you are operating it.
• Before cleaning, inspecting, or repairing your mower, stop the engine and make absolutely sure the blade and all moving
parts have stopped. Then disconnect the
spark plug wire and keep it away from the spark plug to prevent accidental starting.
• Do not continue to run your mower if you
hit a foreign object. Follow the procedure outlined above, then repair any damage before restarting and operating you mower.
• Do not change the governor settings or
overspeed the engine. Engine damage or
personal injury may result.
• Do not operate your mower if it vibrates abnormally. Excessive vibration is an indication of damage; stop the engine,
safely check for the cause of vibration and repair as required.
• Do not run the engine indoors. Exhaust fumes are dangerous.
• Never cut grass 15ypulling the mower
towards you. Mow ac_ss the face of slopes, never up and down or you might
lose your footing. Do not mow exces-
sively steep slopes. Use caution when operating the mower on uneven terrain
or when changing directions -- maintain good footing.
• Never operate your mower without
proper guards, plates, grass catcher or other safety devices in place.
MAINTENANCE AND STORAGE:
• Check the blade and the engine mount- ing bolts often to be sure they are tightened propedy.
• Check all bolts, nuts and screws at
frequent intervals for proper tightness to
be sure mower is in safe work'mg condition.
• Keep all safety devices in place and working,
• To reduce fire hazard, keep the engine free of grass, leaves or excessive grease and oil.
• Check grass catcher often for deteriora- tion and wear and replace worn bags.
Use only replacement bags that are recommended by and comply with specifications of the manufacturer of your mower.
• Always keep a sharp blade on your mower.
• Allow engine to cool before storing in any enclosure.
• Never store mower with fuel in the tank
inside a building where fumes may reach
an open flame or an ignition source such as a hot water heater, space heater, clothes dryer, etc.
_I,CAUTION: Always disconnect spark plug wire and place wire where it cannot contact spark plug in order to prevent accidental starting when setting up, transporting, adjusting or making repairs.
WARNING
The engine exhaust from this product contains chemicals known to the State of
California to cause cancer, birth defects, or other reproductive harm.
3
Theseaccessories
They_am also
available at most Sears retailoutlets and service centers. Most Sears stores can also order repair parts for you, when you provide the model number of your lawn mower, Some of these
accessories may not apply to your lawn mower.
LAWN MOWER PERFORMANCE
CUPPING DEFLECTOR
FOR REAR DISCHARGE LAWN MOWERS
GRASS CATCHERS
FOR
REAR DISCHARGE
LAWN MOWERS
LAWN MOWER MAINTENANCE
MUFFLERS
MULCHERKITS
/
!
FOR
SIDE DISCHARGE
STAEIUZER
AIR RLTERS
GAS CANS
€
SPARK PLUGS
I--
ENGINE OIL BLADE ADAPTERS WHEELS BELTS BLADES
Read these instructions and this manual in its entirety before you attempt to assemble or operate your new lawn mower.
Your new lawn mower has been assembled at the factory with the exception of those parts left unassembled for shipping purposes.
All parts 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 LAWN MOWER FROM
CARTON
• Remove loose parts included with mower.
• Cut down two end corners of carton and lay end'panel down flat.
• Remove all packing materials except padding between upper and lower handle and padding holding operator presence control bar to upper handle.
• Roll lawn mower out of carton and check carton thoroughly for additional loose parts,
HOW TO SET UP YOUR LAWN
MOWER
TO UNFOLD HANDLE
IMPORTANT: Unfold handles carefully
so as not to pinch or damage control cables.
• Raise handles until lower handle section locks into place in mowing position.
• Remove protective padding, raise upper handle section into place on lower handle and tighten both handle knobs.
• Remove handle padding holding operator presence control bar to upper handle.
4
• Your lawn mower handle can be
adjusted for your mowing comfort.
Refer to "Adjust Handle" in the Service and Adjustment section of this manual.
Operator presence controlbar
Upper handle \
Lift up
Mowing position
Lower handle
KNOW YOUR LAWN MOWER
READ THIS OWNER'S MANUALAND SAFETY RULES BEFORE OPERATING YOUR LAWN
MOWER. Compare the illustrationswith your lawn mower to familiarize yourself with the
locationof various controls and adjustments. Save this manual for future reference.
These symbols may appear on your lawn mower or in literature supplied with the product. Learn and understand their meaning.
CAUTION
OR WARNING
ENGINE
ON
I_IGINE
OFF
FAST
Engine zone control....
cable
Starter handle
SLOW CHOKE FUEL OiL DANGER, KEEP HAN06
ANO FEET AWAy
Operator presence controlbar
Grass catcher.
Gasoline filler cap
Air filter
Primer
Lawn mower housing
Engine oil plug ljduster
(on each wheel)
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 Commission.
The blade turns when the engine is running.
operator presence control _ - must De held down to the handle to start the engine,
Release to stop the engine,
Primer- pumps additionalfuel from the
carburetor to the cylinder for use when starting a cold engine.
Starter handle - used for starling the engine.
5
Theoperationof anylawnmowercan resultin foreignobjectsthrownintothe eyes,whichcan resultin severeeye damage.Alwayswearsafetyglassesor
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,
HOW TO USE YOUR 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 dsk of blade contact injury. Do not under any circumstances attempt to defeat the function of the operator control. The blade tums 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 adjuster 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.
Lower wheels for high cut
Raise wheels for low cut
Pla_etab
TO ATTACH GRASS CATCHER
• Close the flip lid. Flip lid must be closed while operating lawn mower.
• Lift the rear door on th_ mower housing and place the grass catcher frame onto the formed tabs on the rear door hinge bracket.
• The grass catcher is secured to the lawn mower housing when the rear door is lowered onto the grass catcher frame,
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.
bracket
Formed tabs
Grass frame
TO EMPTY GRASS CATCHER
• To remove grass catcher, release operator presence control bar to stop engine,
• Lift up rear door and remove the grass catcher by the handle.
NOTE: Do not drag the bag when emptying; it will cause unnecessary wear.
BEFORE STARTING ENGINE
OIL
Your lawn mower is shipped without oil in the engine.
• Be sure mower is level and area around
oil fill is clean.
• Remove engine oil plug and fill to the full line on the dipstick.
• Use 20 ozs. of oil. For type and grade
of oil to use. see =ENGINE" in Mainte- nance section of this manual.
• Pour oil slowly. Do not over fill.
• Check oil level before each use. Add oil
if needed.
Fill to full line on dipstick.
• To read proper level, tighten engine oil plug each time.
• Reinstall engine oil plug and tighten.
• Change the oil after every 25 hours of operation or each season.
You may need tochange the oil more often under dusty, dirty conditions.
GAS
• Fill fuel tank. Use fresh, clean, regular unleaded gasoline with a minimum of 87 octane.
(Use of leaded gasoline will
increase carbon and lead oxide deposits and reduce valve life). Do not mix oil with gasoline.
Purchase fuel in quanti- ties 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.
Gasoline filler cap
Engine oil
TO START ENGINE
• To start a cold engine, push primer five (5)
times before trying to start. Use a firm push.
This step is not usually neeessan/when
starting an engine which has already run for
a few minutes.
• Hold operator presence controlbar down to the handle and pull starter handle quickly.
Do not allow starter rope to snap back.
• To stop engine, release operator presence control bar.
NOTE: In cooler weather it may be necessary
to repeat priming steps. In warmer weather over priming may cause flooding and engine
will not start. If you do flood engine, wait a few
minutes before attern_ng to start and do not
repeat priming steps.
MOWING TIPS
• 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.
• When using a rear discharge lawn mower in moist, heavy grass, clumps of cut grass may not enter the grass catcher.
Reduce ground speed (pushing speed) and/or run the lawn mower over the area a second time.
• If a trail of clippings is left on the right side of a rear discharge mower, mow in a clockwise direction with a small overlap to collect the clippings on the next pass.
• Pores in cloth grass catchers can
become filled with dirt and dust with use and catchers will collect less grass. To prevent this, 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.
7
s .v.c
Checkfor LooseFasteners clean/Inspect GrassCatcher
M
(If Equipped)
_
t#° _ i/
n
DATES
I
Check drive belt/pulleys
(Power-P ropelled Mowers)
LubricationChart
Blade
Clean Batte_j/Rocherge
IElectric Start MowersI
EI
Check En_line Oil Level
N Cha_e E_ine o,
G I Clean Air Rlter
I Inspect Muffler
N Clean or ReplaceSpad_Plug
V
t It
!,_:l
_
Ve_=
I_ 2 ql/
t/
I_=
¥1
IVP4
t - Change more olteqlwhen opemUr_ _ • heavy _ of kl high ambient temperatures.
2. Senf,ce more olten when operadng i_ dirty or dustycondi6on=.
3 - Replace blad_ morroolten when mowing in _mdy sol.
4 - _ 4Bhours at end (d soason. LUBRICATION
GENERAL RECOMMENDATIONS
) Wheel adjuster
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 manuel.
Some adjustments will need to be made
periodically to properly maintain your unit.
All adjustments in the SeMce and Adjust-
ments section of this manual should be checked at least once each season.
• Once a year, replace the spark plug, replace
air filterelement and check blade for wear.
A new spark plug and dean/now air filter element assures proper air-fuel mixture and
helps your engine run better and last longer.
• Follow the maintenance schedule in this manual.
(_) Rreat door hinge andle bracket
CHART
(_ Brake springe bracket
(_) Engine oil
BEFORE EACH USE
• Check engine oil level.
• Check for loose fasteners.
(_ Spray lubricant
(_) SAE 30 Motor oil. Refer to ENGINE
LUBRICATION
Keep unitwelllubricated (See "LUBRICATION
CHART").
8
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.
PRODUCT SPECIFICATIONS
MODEL NUMBER
SERIAL NUMBER
DATE OF PURCHASE
HORSEPOWER:
DISPLACEMENT:
GASOLINE
OIL TYPE
CAPACITY/TYPE:
(API-SF/SG/SH):
917.387255"
4.0
11.5 CU. IN.
1.25 QUARTS
UNLEADED REGULAR
SAE 30 (ABOVE 32°F)
SAE 5W-30 (BELOW 32°F)
20 OZS.
OIL CAPACITY:
SPARK PLUG(GAP: .030")
VALVE CLEARANCE:
CHAMPION RJ19LM OR J19LM
INTAKE: .004 - .008
EXHAUST: .004 - .008
SOLID STATE IGNITION
AIR GAP: .0125 IN.
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 rubber.
MOWER
Always observe safety rules when performing any maintenance.
TIRES
• Keep tires free of gasoline, oil, or insect control chemicals which can harm
• Avoid stumps, stones, deep ruts, sharp objects and other hazards that may cause tire damage.
BLADE CARE
• 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.
For best results, mower blade must be kept sharp. Replace bent or damaged blades.
TO REMOVE BLADE
• Disconnect spark plug wire from spark plug and place wire where it cannot
come in contact with spark plug.
• Turn lawn mower on its side. Make sure
air filter and carburetor are up.
• Use a wood block between blade and
mower housing to prevent blade from turning when removing blade bolt.
• Protect your hands with gloves and/or wrap blade with heavy cloth.
• Remove blade bolt by turning counter- clockwise.
TO REPLACE BLADE
• Position the blade adapter on the engine crankshaft.
Be sure key in adapter and crankshaft keyway are aligned.
• Position blade on the blade adapter
aligning the two (2) holes in the blade with the raised lugs on the adapter.
• Be sure the trailing edge of blade
(opposite sharp edge) is up toward the engine.
• Install the blade bolt with the lock washer and hardened washer into blade adapter and crankshaft.
• Use block o! 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 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 gdnding 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 ho!e 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.
Blade bolt
Blade
Blade adapter
Key
Crankshaft keyway shaft
I SAE VISCO61WGRADES 1
NOTE: Although multi-viscosityoiLs(5W30,
10W30 etc.) improve startingin cold weather, these multi-viscosityoilswill result in increased oil consumptionwhen used above 32°F.
Check your engine oil level more frequently to
avoid possibleengine damage from running
low on oil.
Change the oil after every 25 hours of operation or at least once a year if the lawn mower is not used for 25 hours in one year.
Check the crankcase oil level before starting
the engine and after each live (5) hours of
continuoususe. T_jhten oil plug securely each time you check the oil level.
TO CHANGE ENGINE OIL
• Disconnect spark plug wire from spark
plug and place wire where it cannot come in contact with spark plug.
• Be sure lawn mower is on level surface.
• Oil will drain more freely when warm.
• Catch oil in a suitable container.
• Remove bottom oil drain plug.
• After oil has drained completely, replace oil drain plug and tighten securely.
• Refill engine with oil. Pour slowly. Do not over fill.
• Fill to top of slot inside of filler hole.
• Reconnect spark plug wire to spark plug.
washer Hardened washer Trailing edge
Blade adapter
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 manufacturer approved replacement catcher.
Give the lawn mower model number when ordering.
Drain plug
ENGINE
LUBRICATION
Use only high quality detergent o=lrated with
API service classit]cationSF, SG orSH.
Select the oil's SAE viscosity grade according to your expected operating temperature.
10
AIR FILTER
Your engine will not run propedy and may be damaged by using a dirty air filter.
Replace the air filter every year, more
often if you mow in very dusty, dirty
conditions. Do not wash air filter.
TO CHANGE AIR FILTER
• Remove the air filter by turning counter-
clockwise to the stop and pull away from collar.
• Remove filter from inside of cover.
• Clean the inside of the cover and the
collar to remove any dirt accumulation.
• Insert new filter into cover.
• Put air filter cover and filter into collar aligning the tab with the slot.
• Push in on cover and turn clockwise to tighten.
Collar
Turn Counter-
Clockwise to
Remove
Air Filter
Tab
Air Filter Cover
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 batter. Set
spark plug gap at .03O inch.
to Tighten
CLEANING
IMPORTANT: For be_ performance, keep
mower housing free of built-up grass and
trash. Clean underside of mower housing after each use.
ACAUTION: Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with the spark plug.
• Turn lawn mower on its side. Make sure air filter and carburetor are up. Clean the underside of your lawn mower by scraping to remove build-up of grass and trash.
• Clean engine often to keep trash from accumulating.
A clogged engine runs hotter and shortens engine life.
• Keep finished surfaces and wheels free of all gasoline, oil, etc.
• We DO NOT recommend using a garden hose to clean lawn mower unless the electrical system, muffler, air filter and carburetor are covered to keep water out. Water in engine can result in shortened engine life.
&CAUTION: Before performing any service or adjustments
•
•
Release control bar and stop engine.
Make sure the blade and all moving parts have completely stopped.
Disconnect spark plug wire from • spark plug and place where it cannot come in contact with plug.
LAWN MOWER
TO ADJUST CUTTING HEIGHT
See "1"OADJUST CUFFING HEIGHT" in the
Operation section of this manual.
REAR DEFLECTOR
The rear deflector, attached batween the rear wheels of your lawn mower, is provided to minimize the possibilitythat objects will be thrown out the rear of the lawn mower into the operator's mowing position.
If the rear deflector becomes damaged, it should be replaced.
TO ADJUST HANDLE
Your lawn mower handle can be raised or
lowered for your mowing comfort. Four (4) positions are available: high, medium high, medium low and low. Handles are shipped
mounted in the medium low position.
11
• To change from medium low to medtum
high position, the upper and lower handle sections will have to be tumed over.
• Remove the cable clips.
• Remove the controls and operato_ presence control bar from the upper handle,
• Remove the starter rope guide from the upper handle.
• Remove hairpin cotters.
• Disconnect the lower handle from the handle brackets.
• Turn the handle over and reassemble the hairpin cotters that have been removed,
• Reassemble the starler rope guide.
• Reassemble the conbols and the operator presence control bar to the upper handle.
,&CAUTION: The operator presence control
bar must pivotfreely to permit blade brake
engagement when contre_bar is released. Do
not over tighten the fasteners holding the centrols to the upper handle,
• To change from medium low to high position only the upper handle section will have to be turned over.
• To change from medium low to low position, only the lower handle section will have to be turned over.
Shippingposition
Medium low
High
Lower handle
Squeeze to remove
Hairpin clip
Medium high
Low bracket
ENGINE
CARBURETOR
Your carburetor has anon-adjustable fixed
main jet for mixture control. If your engine does not operate properly (_ueto suspected carburetor problems, take your lawn mower to an authorized service center for repair or adjustment.
IMPORTANT: Never tamper with the
engine governor, which is factory set for proper engine speed.
Overspeeding the
engine above the factory high speed setting can be dangerous, if you think the engine-governed high speed needs adjusting, contact your nearest
AUTHORIZED service center, which has proper equipment and experience to make any necessary adjustments.
ENGINE SPEED
Your engine speed has been factory set.
Do not attempt to increase engine speed
or it may 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 adjustment.
12
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.
• Clean entire lawn mower (See "CLEAN-
ING" in the Maintenance of this manual).
• Lubricate as shown in the Maintenance section of this manual.
• Be sure that all nuts, bolts, screws, and pins are securely fastened.
Inspect moving parts for damage, breakage and wear.
Replace if necessary.
• Touch up all rusted or chipped paint surfaces; sand lightly before painting.
HANDLE
You can fold your lawn mower handle for storage.
• Squeeze the bottom ends of the lower handle toward each other until the lower handle clears the handle bracket, then
move handle forward.
• Loosen upper handle mounting bolts enough to allow upper handle to be folded back.
IMPORTANT: When folding the handle for
storage or transportation, be sure to fold
the handle as shown or you may damage the control cables.
• When setting up your handle from the storage position, the lower handle will automatically iock into the mowing position.
Operator presence controlbar
Upper handle
_
Lower_handle
Hairpin cotter bracket
Handle
ENGINE
FUEL SYSTEM
IMPORTANT: It is importantto prevent gum deposits from forming in essential fuel system parts such as carburetor,fuel filter,fuel hose,
or tank during storage. Also, experience
incr_atesthat alcohol blended fuels (called gasohol or using ethanol or methanol) can
attract moisture which leads to separation and
formation of acids during storage. Ac_bc gas
can damage the fuel system of an engine while in storage.
• Drain the fuel tank.
• Start the engine and let it run untilthe fuel
linesand 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 deposits duringstorage. 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 stabilizerto allow the stabilizer to
reach the carburetor. Do not drain the gas
tank and carburetor if using fuel stabilizer.
Fold forward for storage
Fold backward
Mowing position
Lower handle
13
inthe
Maintenancesectionof
this manual).
CYMNDER
• Remove spark plug.
• Pour one ounce (29 ml) of oilthrough spark plug hole into cylinder.
• Pull starter handle slowly a few times to distribute oil.
• Replace with new spark plug.
OTHER
• Do notstoregasoline
from
one seasonto another.
• Replaceyourgasolinecan Ifyourcan starts
to rest. Rustand/ordirtin yourgasolinewill
causeproblems.
• 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,melsture. Do not
use plas_c. Plastic cannot breathe which allowscondensation to form and willcause your unitto rust.
IMPORTANT: Never cover mower while
engine and exhaust areas are stillwarm.
ACAUTION: Never store the lawn mower with gasoline in the tank ins'de a building where fumes may roach an open flame or
spark. Allow the engine to cool before storing
in any enclosure.
TROUBLESHOOTING
PROBLEM
Does n_smd
CHART
CAUSE
Di_ alr_.
Out_f_l.
Stalefuel.
Water in fuel.
• Spark plug wire is disconnected.
• Bad spark plug.
• Loose blade or broken blade ao_er.
• Control bar in released position.
• Control bar defective.
14
CORRECTION
• Clean/replace air filter.
• Fill fuel tank.
• Drain tank and refill with fresh clean fuel,
• Drain fuel tank and carburetor and refilltank with fresh gasoline.
• Connect wire to plug.
• Replace spark plug.
• "Rghtenblade bolt or replace blade adapter.
• Depress control barto handle.
• Replace control bar.
TROUBLESHOOTING
PROBLEM
Loss of power
CHART
CAUSE
• Rear of lawn mower housing or cutting blade dragging
in heavy grass.
• Cutting too much grass.
CORRECTION
• Set to =Higher Cut" position.
Poor cut - uneven
• Dirty air fiiter.
• Buildup of grass, leaves, and trash under mower.
• Too much oil in engine.
• Walking speed too fast.
• Worn, bent or loose blade.
• Wheel heights uneven.
• Buildup of grass, leaves and trash under mower.
• Set to "Higher CLd' position.
• Clean/replace air filter.
• Clean underside of mower housing.
• Check oil level,
• Cut at slower walking
speed.
• Replace blade. T_hten blade bolt.
• Set all wheels at same height
• Clean underside of mower housing.
Excessive vibration
Starter rope hard to pull
• Worn, bent or loose blade.
• Bent engine crankshaft.
• Engine flywheel brake is on when controlbar is released.
• Bent engine crankshaft.
• Blade adapter broken.
• Blade dragging in grass.
• Replace blade.'rlghten blade bolt.
• Contact an authorized service center.
• Depress controlbar to upper handle before pullingstarter rope.
• Contact an authorized service center.
• Replace blade adapter.
• Move lawn mower to cut grass or to hard surface
Grass catcher not filling ('rfso equipped)
• Cutting height too low.
• Lift on blade wom off.
• Catcher not venting air.
• Raise cutting height.
• Replace blade.
• Clean grass catcher.
Hard to push • Grass istoo high or wheel
height is too low.
• Rear of lawn mower housing or blade dragging in grass.
• Grass catcher too full.
• Handle height position not rightfor you.
15
• Raise cutting height.
• Raiserearof lawnmower
housingone (1) setting higher.
• Emptygrass catcher.
• Adjusthandleheightto suit.
57
ROTARY LAWN MOWER
- - MODEL
NO. 917.387255
43
39
40
43
4O
39
43
39
KEY
NO.
18
19
21
22
23
24
11
13
14
15
17
9
10
5
7
8
1
2
4
25
26
28
29
31
32
33
34
35
36
37
PART
NO.
86902
165451X479
132001
157081X479
131959
66426
51793
136376
156577
750097
850733X004
63601
147613
700357X479
150050
54583
700063X479
88652
700363X479
144875X479
140657
151512X479
151511X479
150078
700325X007
146630
128415
87877
700331X004
145935X004
ROTARY LAWN MOWER - - MODEL NO. 917.387255
DESCRIP_ON
ControlBar
Upper Handle
Rope Guide
Lower Handle
Handle Bolt
Wire Tie
HairpinCotter
Handle Knob
EngineZone ControlCable
Hex Washer Heed Screw 10-24 x 1/2
Up-Stop Bracket
Locknut 1/4-20
Rear Door AssemblyKit
Back Plate
Self Tapping Screw 10-24 x 5/8
Hex Head Tapping Screw 1/4-20 x 1/2
Rear Baffle
Hinge Screw 1/4-20 x 1-1/4
Side Baffle
DischargeBaffle
Rear Deflector
Handle BracketAssembly (Left)
Handle BracketAssembly (Right)
Screw 5/16-16 x 3/4
Wheel AdjustingBracket
Spacer
Pop Rivet
Selector Knob
SelectorSpdng
Axle Arm Assembly
KEY
NO.
PART
NO.
38 62335
39 142748
40 146248
42 83923
43 77400
44 85463
45 150406
46 161857
47 751592
50 144915
51 851084
52 850263
53 851074
54 850972
55 85G977
57 751663
58 ......
59 88614
- 161058
- 166082
DESCRIP_ON
BellevilleWasher
ShoulderBolt
Wheel and _re Assembly
Hex Flange Locknut
Hubcap
Danger Decal
Hex Head Thread RollingScrew 3/8-16 x 1
Lawn Mower Housing(Incl. Key #18, 22, 24, 44, 50)
Locknut3/8-16
FrontBaffle
Hex Head Machine Screw ,3/6-24x 1-3/8 (Grd. 8)
Helical Lookwesher3/8
Washer
Blade 20"
Blade Adapter
Grass Bag
Engine (See Breakdo_r,)
CraftsmanModel No.1,,3.994004
Throat Frame
Warning Decal (Not Sh'._wn)
Owner's Manual
Available accessoriesnot Includedwith lawn mower:,
71 33303
71 33623
71 33500
71 33000
71 33417
71 33316
ClippingDeflector
Gas Can (2.6 gal.)
Fuel Stabilizer
SAE 30W Oil (20 oz.)
Dust Shield
MowerCover
CRAFTSMAN 4-CYCLE ENGINE
MODEL NUMBER, 143.994004
4OO
135
130
416
417_ "_-_'
120
185
"174
52
46
32
KEY
NO.
PART
NO.
1 37280
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
30 36793
40 35544A
35545A
35546
41 35541
35542
35543
42 35547A
35548A
35549
43 20381
45 36777
46 32610A
48 27241
50 37032
52 29914
69 35261
70 32612C
72 36O83
75 27897
80 30574A
8t 30590A
82 30591
83 30588A
86 650488
89 611004
90 611112
92 650815
93 650816
100 34443B
101 610118
103 651007
110 37047
119 37028
120 36825
125 37288
126 37289
MODEL NUMBER 143.994004
DESCRIP_ON
Cylinder
(Incl. 2,20 & 150)
Dowel Pin
Breather Element
Breather Ass'y.
(incl. 6 & t2A)
Breather Tube
Breather Cover & Tube
(Ind. 12B)
Breather Tube Elbow
Washer
Governor Rod (IncL 14)
Governor Lever
Governor Lever Clamp
Screw, Torx T-15, 8-32 x
19/64 •
Extension Spring
Oil Seal
Crankshaft
Piston, Pin & Ring Set
(Std.)
Piston, Pin& Ring Set
(.010" OS)
Piston, Pin & Ring Set
(.020 • OS)
Piston& Pin Ass'y.
(Std.) (Incl. 43)
Piston& Pin Ass'y.
(.010 • OS) (Incl. 43)
Piston& Pin Ass'y.
(.020" OS) (Incl. 43)
Ring Set (Std.)
Ring Set (.010" OB)
Ring Set (.020 OS)
PistonPin Retaining
Ring
ConnectingRod Ass'y.
(Incl. 46)
Connecting Rod Bolt
Valve Lifter
Camshaft (NCR)
Oil Pump Ass'y.
* Mounting Flange Gasket
Mounting Flange
(Incl. 72 thru 83)
Oil Drain Plug
Oil Seal
Governor Shaft
Washer
Governor Gear ASS'y.
(Incl. 81)
Governor Spool
Screw, 1/4-20 x 1-114•
RywheelKey
Flywheel
BellevilleWasher
FlywheelNut
Solid State Ignition
Spark Plug Cover
Screw, Torx T-15,
10-24 x 15/16 •
Ground Wire
* Cylinder Head Gasket
Cylinder Head
ExhaustValve (Std.)
(Incl. 151)
Intake Valve (Std.)
(Incl.151)
KEY
NO.
PART
NO.
DESCRIPTION
130
135
6021A
35395
150 31672
151 31673
151A 40017
169 36783
172 36784
174 30200
178 29752
182
184
185
186 32653
189 650839
191 36559A
195
"207
216
"223
416
6201
26756
36785
610973
34336
33086
650451
224 36786
238 650932
239
241
34338
35797
245 35066
250 35065
260 36834
261 30200
262
275
650831
36790A
277 650988
285 35000A
287
290
292
300
301 36246
311 27625
313 34080
370A 36261
370C 37199
370K 36695
380 640174
390 590737
400 37029A
417
900
900
650926
34357
26460
35586
36085
650821
----
---
Screw, 5/16-18 x 1-1/2•
ResistorSpark Plug
(RJtgLM)
Valve Spring
Valve Spdng Cap
Intake Valve Seal
* Valve Cover Gasket
Valve Cover
Screw, 10-24 x 9/16•
Nut & LockWasher,
114-28
Screw, 1/4-28 x 7/8•
• CarburetorTo Intake
Pipe Gasket
Intake Pipe
Governor Link
Screw, 1/4-20 x 3/8"
S.E. Brake Bracket
(Incl. t95)
Terminal
Throttle Link
R.P.M. AdjustingLever
Screw, 1/4-20 x 1"
• Intake Pipe Gasket
Screw, 10-32 x 49/64"
• Air Cleaner Gasket
Air Cleaner Collar
Air Cleaner Filter
Air Cleaner Cover
Blower Housing
Screw, 10-24 x 9/16"
Screw, 1/4-20 x 1/2"
Muffler
Screw, 114-20x 2-5/16"
Starter Cup
Screw, 8-32 x 21164•
Fuel Line
Fuel Line Clamp
FuelTank
(incl.292 & 301)
Fuel Cap
Oil Fig Plug
Spacer
Lubrication Decal
PrimerDecal
Starter Decal
Carburetor(Incl. 184)
RewindStarter
Gasket Set
(Incl. Items Marked ")
Spark ArrestorKit
(Incl. 417)(Optional)
Screw, 10-32 x 1/2"
(Optional)
Replacement Engine
750830, orderfrom
71-999
Replacement Short Block
750829A, orderfrom 71-999
RPM High 2900 to 3200
NOTE: This engine couldhave been builtwith 590694 starter
NOTE: All componentdimensionsgiven in U.S. inches
1 inch = 25A mm
33
CRAFTSMAN 4.-CYCLE ENGINE MODEL_NUMBER 143.994004
l -x
KEY
NO.
PART
NO.
640174
631615
631767
631184
631183
640070
650506
631807
651025
630766
640018
64O200
631867
631024
632019
631028
631021
631022
36O45A
640080
632766
632547
640175
27110A
630748
631027
631027
632760
20
20A
25
27
28
29
30
31
35
36
36A
37
40
44
47
48
48A
6O
4
5
6
1
2
7
16
17
18
DESCRIPTION
Carburetor (Incl. 184 of Engine Parts List)
Throttle Shaft & Lever Assembly
Throttle Return Spdng
* Dust Seal Washer
• Dust Seal (Throttle)
Throttte Shutter
• Shutter Screw
Fuel Fitting
Throttte Crack Screw/Idle Speed Screw
Tension Spring
Idle Restrictor Screw
Idle Restdctor Screw Cap
Float Bowl
• Float Shaft
Float
• Float Bowl "O" Ring
* Inlet Needle, Seal & Clip (IncL 31)
Spring Clip
Primer Bulb/Retainer Ring
Main Nozzle Tube
Carburetor Tube
* _O" Ring, Main Nozzle Tube
High Speed Bowl Nut
Bowl Nut Washer
34
• Welch Plug, Idle Mixture Well
• Welch Plug, Atmosphedc Vent
• Welch Plug
Repair kit (IncL Items Marked •)
CRAFTSMAN _CYCLE ENGINE MODEL NUMBER 143.994004
__
13
13
'-=f =K'
-- 8
......ll
NO.
NO.
-590694
KEY PART
2 590600
3 590696
4 590601
5 590697
7 590699
8 590700
6 590698
12 590535
13 590701
DESCRIPTION
Recoil Starter
Spring Pin (IncL4)
Washer
Retainer
Washer
Brake Spring
Starter Dog
Dog Spring
Pulley& Rewind
SpringAss'y.
Starter HousingAss'y.
(40 degree grommet)
Starter Rope
( 98" X 9/64" die.)
Starter Handle
--5
O
I1--,
2
-- -14
2------2 f_._.
-\
R--
3
6
7
8
11
12
13
14
KEY
NO.
PART
NO.
590737
590740
590616
590617
590618A
590687A
590535
590701
590760
!J
Iii
DESCRIPTION
Rewind Starter
Retainer
Starter Dog
Dog Spdng
Pulley& Rewind
SpringAss'y
Starter HousingAss'y
(40 degree grommet)
Starter Rope
Starter Handle
SpringClip
35
For in-home major brand repair service:
Call 24 hours a day, 7 days a week
1-800-4-MY-HOME ='
(1-800,469-4663)
Para pedir servicio de reparaci6n a domicilio
1-800-676-5811
In Canada for all your service and parts needs call
Au Canada pour tout le service ou les pi_ces
1-800-665-4455
For the repair or replacement parts you need:
Call 6 am-11pm CST, 7 days a week
PartsDirect s"
1-800-366-PART (1-800-366-7278)
Para ordenar piezas con entrega a domicilio
1-800-659-7084
For the location of a Sears Parts and Repair Center in your area:
Call 24 Hours a day, 7 days a week
1-800-488-1222
For information on purchasing a Sears Maintenance
Agreement or to inquire about an existing Agreement:
Call 9 am-5 pm, Monday - Saturday
1-800-827-6655
166082
Home Central s"
REV.1
01.16.99
Ii
VB
Printed in U.S.A.
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