Page 1
mAm
CRnFTSMRN
MODEL NUMBER 917.374590 owner s manual
Oon vert I k>le
• Assembly
® Operation
• Customer
Responsibilities
• Service
• Adjustments
• Repair Parts
Caution:
Read and Follow
all Safety Rules
and Instructions
Before Operating
This Equipment
145153 REV. 1 06/29/94
Printed in U.S.A.
Sears, F^d^bupk and Co.^ Hoffman Estates, IL 60170 U.S.A.
Page 2
SAFETY RULES
CAUTION: ALWAYS DISCONNECT SPARK PLUG WIRE AND PLACE WIRE WHERE IT CANNOT CONTACT SPARK
PLUG TO PREVENT ACCIDENTAL STARTING WHEN SETTING UP, TRANSPORTING, ADJUSTING OR MAKING
A
SAFETY STANDARDS REQUIRE OPERATOR PRESENCE CONTROLS TO MINIMIZE THE RISK OF INJURY. YOUR UNIT IS EQUIPPED WITH
SUCH CONTROLS. DO NOT ATTEMPT TO DEFEAT THE FUNCTION OF THE OPERATOR PRESENCE CONTROLS UNDER ANY CIRCUM
STANCES.
IMPORTANT
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 de
scribed 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.
• Donotuse accesso ry attac hments thatarenotrecommended
by the manufacturer. Use of such attachments may be
hazardous.
• Be aware that the blade turns when the engine is running.
PREPARATION:
• Always thoroughly check the area to be mowed and clear it of
all stones, sticks, wires, bones, and other foreign objects.
These objects will be thrown by the blade and can cause
severe injury.
• Always wear safety glasses or eye shields when starting and
while using your mower.
• Dress properly. Do not operate mower when barefoot or
wearing open sandals. Wear only solid shoes with good
traction when mowing.
• Check fuel tank before starting engine. Do not fill gas tank
indoors, when the engine is running or when the engine is hot.
Allow the engine to cool for several minutes before filling the
gas tank. Clean off any spilled gasoline before starting the
engine.
• Always make wheel height adjustments before starting your
mower. Never attempt to do this while the engine is running.
• Mow only in daylight or good artificial light.
OPERATION:
• Keep your eyes and mind on your mower and the area being
cut. Do not let other interests distract you,
• Do not mow wet or slippery grass. Never run while operating
your mower. Always be sure of your footing - keep a firm hold
on the handles and walk.
• Do not put hands or feet near or under rotating parts. Keep
clear of the discharge opening at all times.
• Always stop the blade whenever you leave or are not using
yourmower, orbefore 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 dam
age 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. Exces
sive vibration is an indication of damage; stop the engine,
safely check for the cause of vibration and repai r as requ i red.
• Do not run the engine indoors. Exhaust fumes are danger
ous,
• Never cut grass by pulling the mower towards you. Mow
across the face of slopes, never up and down or you might
lose your footing. Do not mow excessively steep slopes.
Use caution when operating the mower on uneven terrain or
when changing directions - maintain good looting.
• Never operate your mower without proper guards, plates,
grass catcher or other safety devices in place.
MAINTENANCE AND STORAGE:
• Check the blade and the engine mounting bolts often to be
sure they are tightened properly,
• Check all bolts, nuts and screws at frequent intervals for
proper tightness to be sure mower is in safe working condi
tion.
• 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 deterioration 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.
A
A
LOOK FOR THIS SYMBOL TO POINT OUT IMPORTANT SAFETY PRECAUTIONS.
IT MEANS-ATTENTION!!! BECOME ALERT!!! YOUR SAFETY IS INVOLVED.
Page 3
CONGRATULATIONS on your purchase of a Sears Lawn
Mower, it has been designed, engineered and manufac
tured to give you the best possible dependability and
performance. ,
Should you experience any problem you cannot easily
remedy, please contact your nearest Sears Authorized
Service Center/Department. We have competent, welltrained technicians and the propertoois to service or repair
this lawn mower.
Please read and retain this manuai. The instructions will
enable you to assemble and maintain your lawn mower
properly. Always observe the “SAFETY RULES”.
MODEL
NUMBER
917.374590
SERIAL
NUMBER _
DATEOFPURCHASE.
THE MODEL ANDSERIALNUMBERS WILL BE FOUND
ON A DECAL ATTACHED TO THE REAR OF THE
LAWN MOWER HOUSING
YOU SHOULD RECORD BOTH SERIALNUMBER AND
DATE OF PURCHASE AND KEEP IN A SAFE PLACE
FOR FUTURE REFERENCE.
PRODUCT SPECIFICATIONS
HORSEPOWER:
DISPLACEMENT:
GASOLINE CAPACITY
AND TYPE:
OIL TYPE (API-SF/SG):
OIL CAPACITY:
SPARK PLUG:
(GAP: .030“)
VALVE CLEARANCE;
SOLID STATE IGNITION
AIR GAP;
BLADE BOLT TORQUE:
5.5
12.6 CU. IN.
1.25 QUARTS
UNLEADED REGULAR
SAE 30 (ABOVE 32'F)
SAE 5W-30 (below 32°F)
20 OZS.
CHAMPION RJ19-LM
STD361458
INTAKE: .008“
EXHAUST: .008"
.0125 IN.
35-40 FT. LBS.
MAINTENANCE AGREEMENT
A Sears Maintenance Agreement is available on this product. Contact your nearest Sears store for details.
CUSTOMER RESPONSiBILITIES
® Read and observe the safety rules.
® Follow a regular schedule in maintaining, caring for and using your lawn mower.
^ Follow the instructions under “Customer Responsibilities” and “Storage” sections of this owner’s manual.
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 Craftsman Lawn Mower is used forcommercia! or rental purposes, this warranty applies lor only 90 days from
the date of purchase.
This Warranty does not cover;
* Expendable items which become worn during normal use, such as rotary mower biades, blade adapters, belts,
air cleaners and spark plug.
® Repairs necessary because of operator abuse or negligence, including bent crankshafts and the failure to maintain
the equipment according to the instructions contained in the owner’s manual.
WARRANTY SERVICE IS AVAiLABLE BY RETURNING THE CRAFTSMAN POWER MOWER TO THE NEAREST
SEARS SERVICE CENTER/DEPARTMENT IN THE UNITED STATES. THIS WARRANTY APPLIES ONLY WHILE
THIS PRODUCT IS IN USE IN THE UNITED STATES.
This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
SEARS, ROEBUCK AND CO., D/817 WA, HOFFMAN ESTATES. ILLINOIS 60179
Page 4
TABLE OF CONTENTS
SAFETY RULES
PRODUCT SPECIFICATIONS.
CUSTOMER RESPONSIBILITIES..
WARRANTY
ASSEMBLY
OPERATION..................................................................
MAINTENANCE SCHEDULE ................................
.......
................................................... 2
..................................
............... 3, 12-14
..........................................................
........................................................... 6
3
12
INDEX
A
Accessories
Adjustments:
Carburetor....
Drive Belt..............................
Engine Speed
Handle Height........................16
Height of Cut............................9
Air Filter:
Replacement
Service...................................14
Assembly....................................... 6
Blade:
Sharpening
Replacement
....................................
.....
....................
........................
.........................
B
..........................
.........................
13
17
15
17
14
13
C
Controls:
Drive Control
Engine Zone Control
Engine Speed Control
Operator Presence
Control Bar
Customer Responsibilities ... 3, 12-14
Air Filter
Blade Care/Replacement
Drive Wheels
Engine
Lubrication
Spark Plug
Cutting Levels
...........................
...............
.............
..............................
.............................
.........................
................................
.............................
.............................
................................
14
.......
14
13
13
14
14
9
Engine:
5
Air Filter ,
Oil Chanc
Oil Level.
Oil Type .
Starting ..
Stopping.
Fuel:
Type
..................
Handle Adjustment:
8
8
Lubrication:
8
8
Engine
Lawn Mower
Maintenance Agreement
Maintenance Schedule...
Oil:
Engine.
3
8
.........
SERVICE AND ADJUSTMENTS.................................
STORAGE ...................................................................
TROUBLESHOOTING
REPAIR PARTS - LAWN MOWER
REPAIR PARTS - ENGINE
PARTS ORDERING/SERVICE
14
. 14
14
14
10
10
18
.. 3
18
10
................
....................................
Operation:
Drive Control
Engine Control
Grass Catcher...
Mower
Operator Presence
Control Bar
Options:
Accessories
Repair Parts:
Engine
Lawn Mower
Responsibilities, Customer.
.......................
......
..................
.................................
................
.............
...........
..........................
...................
..................
R
..........................
.................
H
S
M
Safety Rules
.. 6
Service and Adjustments....
16
Carburetor
Drive Belt
Engine Speed...............
14
12
.. o
12
10
12
18
Handle
Spark Plug
Specifications
Speed Control:
Engine......
Starting the Engine
Stopping the Engine
Storage
Trouble Shooting Chart........
Warranty
........................
....................
......................
.......................
...........................
......................
.....................
..............
............
................................
T
W
..............................
.......31
...........
...........
...........
...........
...........
...........
....
25-28
....
19-24
. 3, 12-14
...........
.........
.
.........
.........
.
.........
.
.........
.........
...........
..........
.........
.........
........
.........
..........
15
18
19-24
25-28
32
9
9
9
9
9
5
2
15
17
15
17
16
14
3
8
10
10
18
31
3
Page 5
LAWN MOWER ACCESSORIES
These accessories were available when this iawn mower was produced. They are also available at most Sears retail outlets
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. .
ENGINE
REAR BAG OPTIONAL
REPLACEMENT
BAG FOR REAR
DISCHARGE
LAWN MOWERS
LAWN MOWER MAINTENANCE
Page 6
ASSEMBLY
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 thor
oughly for additional loose parts.
HOW TO SET UP YOUR LAWN MOWER
TO UNFOLD HANDLE (See Fig. 1A)
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.
® Raise upper handle section Into place on lower handle,
remove protective padding and tighten both handle
knobs.
® Remove handle padding holding operator presence
control bar to upper handle.
•' Your lawn mower handle can be adjusted for your
mowing comfort. See "TO ADJUST HANDLE" in the
Service and Adjustment section of this manual.
TO INSTALL ATTACHMENTS
(See Fig. 1B)
Your lawn mower was shipped ready to be used as a
mulcher. To convert to bagging or discharging:
• Open rear door and remove mulcher plate. Store
mulcher plate in a safe place.
® You can now install catcher or optional dipping deflec
tor,
• To return to mulching operation, install mulcher plate
into discharge opening of mower. Be sure all tabs are
seated properly.
FIG. IB
CAUTION: Do not run your lawn mower
without mulcher plate In place or ap
proved clipping deflector or grass
catcher in place. Never attempt to op
A
A
erate the lawn mower with the rear door
removed or propped open.
CAUTION: Always disconnect the en
gine connector from the battery con
nector to prevent accidental starting
when transporting or storing your lawn
mower after the season.
TO PREPARE BATTERY (See Fig. 2)
NOTE: Your battery must be charged before you can start
your lawn mower.
• Connect battery charger connector (male) to battery
connector (female).
^ Plug battery charger into 110 volt A.C. outlet.
® Leave battery charger connected for 24 hours before
starting your engine for the first time.
“ After charging, connect engine connector to battery
connector.
Your engine has an integral alternator for partial charging.
Connect your battery chargerto charge battery as required.
iMPORTANT; THE ENGINE ALTERNATOR WILL NOT
CHARGE A DISCHARGED BATTERY.
At the end of the mowing season the battery should be
charged for 48 hours to protect the battery during winter
storage.
Page 7
ASSEMBLY
TO ASSEMBLE AND ATTACH GRASS CATCHER (See Figs. 3A thru 4)
® To assemble tubular frame to grass bag, work sewn
hem of bag out through the front opening of bag to
expose the hem.
® Thread tubular frame Into hem and gather material at
top of frame as shown.
» Push frame inside bag through the opening until only
the ends of frame are exposed out of the front.
NOTE: Do not close the flip lid at this time.
® Assemble lower frame to tubular frame as shown. 8e
sure frames are fully seated togetheras shown in inset.
* 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.
* Close the flip lid. Flip lid must be closed while operating
lawn mower.
® Lift the rear door on the 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.
TUBULAR
FRAME
(Push inside
bag)
FIG. 3C
SEWN
HEM
(Pull out
through front
of opening)
FLIP LID
FIG. 3A
Page 8
OPERATION
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.
STARTER
BUTTON
ENGINE ZONE CONTROL CABLE
OPERATOR PRESENCE CONTROL BAR
DRIVE CONTROL LEVER
AUXILIARY STARTER HANDLE
HANDLE KNOB
GRASS CATCHER
MULCHERPLATE
ENGINE OIL CAP W/DIPSTiCK
ENGINE SPEED CONTROL
PRIMER
WHEEL ADJUSTER
(ON EACH WHEEL)
HOUSING
FiG. 4
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 - must be held
down to the handle to start the engine. Release to stop the
engine.
PRIMER - pumps additional fuel from the carburetor to the
cylinder for use when starting a cold engine.
STARTER HANDLE - used for starting the engine.
STARTER BUTTON - used for starting the engine.
DRIVE CONTROL LEVER - used to engage power-pro
pelled forward motion of lawn mower.
ENGINE SPEED CONTROL - located on the side of the
engine which allows you to select either fast (*%) or slow
("^) engine speed. "
MULCHER PLATE - must be removed to convert to bag
ging or discharging operation.
8
Page 9
OPERATION
HOW TO USE YOUR LAWN MOWER
CAUTfON: Do not run your lawn mower
without mulcher plate in place and door
closed or without an approved clipping
deflector
A
Never attempt to operate the lawn
mower with the rear door removed or
propped open.
ENGINE SPEED (See Fig. 5)
The engine speed is controlled by a lever located on the
side of the engine. Fast (%) position is for starting the
engine, normal cutting, and better grass bagging. Slow
(<m) position is for light cutting, trimming and fuel economy.
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
A
under any circumstances attempt to
defeat the function of the operator con
trol. The blade turns when the engine is
running.
or grasscatcher in place.
® Your lawn mower is equipped with an operator pres
ence 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 (See Fig. 6)
• Raise wheels for low cut and lower wheels for high cut.
® Wheels are set in low cut for shipping. Adjust cutting
height to suit your requirements. Medium position is
best for most lawns.
® To change cutting height, squeeze adjuster lever to
ward wheel. Move wheel up or down to suit your
requirements. Be sure all wheels are in the same
setting.
TO EMPTY GRASS CATCHER (See Fig. 7)
- To remove grass catcher, release operator presence
control bar to stop engine,
- Lift up rear door and remove the grass catcher by the
handle.
® Do not drag the bag when emptying; it will cause
unnecessary wear.
DRIVE CONTROL (See Fig. 8)
• Self-propelling is controlled by holding the operator
presence control bar down to the handle and pushing
the drive control lever forward until it clicks; then
release the ¡ever.
• Forward motion will stop when the operator presence
control bar is released. To stop forward motion without
stopping engine, release the operator presence con
trol bar slightly until the drive control disengages. Hold
operator presence control bar down to handle to con
tinue mowing without self-propelling.
® To keep drive control engaged when turning corners,
push down on handle and lift front wheels off ground
while turning lawn mower.
Page 10
OPERATION
BEFORE STARTING ENGINE
OIL (See Fig. 9)
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 cap w/dipstick and fill to the full line
on the dipstick.
<■ Use 20 ozs. of oil. Fortype and grade of oil to use, see
“ENGINE” in Customer Responsibilities section of this
manual.
» Pour oil slowly, Do not overfill.
» Check oil level before each use. Add oil if needed. Fill
to full line on dipstick.
» To read proper level, tighten engine oil cap each time.
• Reinstall engine oil cap and tighten.
® After the first two (2) hours of mowing, change the oil,
and every 25 hours thereafter. You may need to
change the oil more often under dusty, dirty conditions.
GAS (See Fig. 9)
® Fill gasoline tank with fresh, clean, unleaded gasoline.
DO NOT USE PREMIUM GASOLINE, BE CAREFUL
NOT TO OVER FILL TANK.
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 stor
age of 30 days or longer. Drain the fuel tank, start the
engine and let it run until fuel lines and carburetor are
empty. Use fresh fuel next season. See Storage Instruc
tions for additional information. Never use engine or
carburetor cleaner products in fuel tank or permanent
damage may occur.
TO START ENGINE
® To start a cold engine, push primerfive (5) 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.
• Move engine speed control lever to fast {%} position.
• Hold operator presence control bar down to the handle
and puli 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 warmerweatheroverpriming may cause
flooding and engine will not start. If you do flood engine,
wait a lew minutes before attempting to start and do not
repeat priming steps.
MOWING TIPS
° Under certain conditions, such as very tali 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.
® For extremely heavy cutting, reduce the width of cut
and raise the rear of the lawn mower housing one (1}
wheel adjuster setting higher than the front tor better
discharge of grass.
® For better grass bagging and most cutting conditions,
the engine speed should be set in the fast (4r) 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 moweroverthe area a second time,
• It a trail of grass clippings is left on the right side of a rear
discharge lawn mower, mow in a clockwise direction
with a small overlap to collect the clippings on the next
pass.
• Keep top of engine around starter clear and clean of
grass clippings and chaff. This will help engine air flow
and extend engine life.
* Pores in doth grass catchers can become filled with dirt
and dust with use and catchers will collect less grass.
To prevent this, regularly hose catchers off with water
and let dry before using.
10
Page 11
OPERATION
MULCHING MOWING TIPS
IMPORTANT; FOR BEST PERFORMANCE, KEEP
MOWER HOUSING FREE OF BUILT-UP GRASS AND
TRASH. SEE “CLEANING” IN CUSTOMER
RESPONSIBILITIES SECTION OF THIS MANUAL.
® The special mulching blade will recut the grass clip
pings 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 (See Fig. 10). If the iawn 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 dumps of mulched grass. For
extremely heavy mulching, reduce your width of cut by
overlapping previously cut path and mow slowly.
• Certain types of grass and grass conditions may re
quire that an area be mulched a second time to
completely hide the clippings. When doing a second
cut, mow across or perpendicuiar to the first cut path.
® Change you r cutting pattern from week to week. Mow
north to south one week then change to eastto west the
next week. This will help prevent matting and graining
of the lawn.
FIG. 10
11
Page 12
CUSTOMER RESPONSIBILITIES
MAINTENANCE SCHEDULE
FILL !N DATES
AS YOU COMPLETE
Check for Loose Fasteners
Clean/lnspect Grass Catcher
IVI
(If Equipped)
o
Clean Lawn Mower
w
Inspect/CIean Drive Wheels
E
(Self-Propelled Mowers)
R
Sharpen/Replace Mower Blade
Lubrication Chart
Clean Battery/Recharge
(Electric Start Mowers)
Check Engine Oil Level
Change Engine Oil ■
Clean Air Filter
Inspect Muffler
Replace Spark Plug
Replace Air Filter Paper Cartridge
1 - Change more often when operating under a heavy load or in high ambient temperatures.
2 - Service more often when operating In dirty or dusty conditions.
3 - Replace blades more often when mowing in sandy soii.
4 - Charge 48 hours at end of season.
.
.......
✓ ✓
✓
✓
✓
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, replace air filter
element and check blade for wear. A new spark plug
and ciean/new airfilterelement assures properair-fuel
mixture and helps your engine run better and last
longer.
“ Follow the maintenance schedule in this manual.
BEFORE EACH USE
® Check engine oil level.
» Check for loose fasteners.
LUBRICATION
Keep unit well lubricated (See "LUBRICATION CHART").
© SPRAY LUBRICANT
© REFER TO CUSTOMER RESPONSIBILITIES ''ENGINE" SEC
✓
✓
%/ 3
✓
✓ ✓ 4
|/l.2
f/2
✓
✓
✓ a
LUBRICATION CHART
TION.
IMPORTANT; DO NOT OILOR GREASE PLASTIC WHEEL
BEARINGS. VISCOUS LUBRICANTS WILL ATTRACT
DUST AND DIRT THAT WILL SHORTEN THE LIFE OF
THESELFLUBRICATING BEARINGS. IFYOU FEELTHEY
MUSTBE LUBRICATED, USEONLY A DRY, POWDERED
GRAPHITE TYPE LUBRICANT SPARINGLY.
12
Page 13
CUSTOMER RESPONSIBILITIES
LAWN MOWER
Always observe safety rules when performing any mainte
nance.
TIRES
® Keep tires free of gasoline, oil, or insect control chemi
cals 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. Re
place bent or damaged blades.
TO REMOVE BLADE (See Fig. 11)
* 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. Use
a 9/16" box or open-end wrench.
® Remove blade and attaching hardware (bolt, lock
washer and hardened washer}.
NOTE: Remove the blade adapter and check the key
inside hub of blade adapter. The key must be in good
condition to work properly. Replace adapter if damaged.
TO REPLACE BLADE {See Fig. 11)
® 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,
® Instail the blade bolt with the lock washerand hardened
washer Into blade adapter and crankshaft.
® Use block of wood between blade and lawn mower
housing and tighten the blade bolt, turning clockwise.
® The recommended tightening torque is 35-40 ft. lbs.
IMPORTANT: BLADE BOLT IS GRADE 8 HEAT TREATED.
NOTE: We do not recommend sharpening blade - but if you
do, be sure the blade is balanced.
TO SHARPEN BLADE
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.
GEAR CASE
* To keep your drive system working properly, the gear
case and area around the drive should be kept clean
and free of trash build-up. Clean underthe drive cover
twice a season.
“ The gear case is filled with lubricant to the proper level
at the factory. The only time the lubricant needs
attention is if service has been performed on the gear
case.
® If lubricant is required, use only Texaco Starplex Pre
mium Grease, part no. 750369. Do not substitute.
DRIVE WHEELS
Check front drive wheels each time before you mow to be
sure they move freely.
The wheels not turning freely means trash, grass cuttings,
etc. are in the drive wheel area and must be cleaned to free
drive wheels.
If necessary to dean the drive wheels, check both front
wheels.
^ Remove hubcaps, hairpin cotters and washers.
® Remove wheels from wheel adjusters.
“ Remove any trash or grass cuttings from inside the
dust cover, pinion and/or drive wheel gear teeth.
Put wheels back in place.
• If after cleaning, the drive wheels do not turn freely,
contact your nearest service center.
GRASS CATCHER
® The grass catcher may be hosed with water, but must
be dry when used.
® Check your grass catcher often for damage or deterio
ration. Through normal use It wli! wear. If catcher
needs replacing, replace only with a manufacturer
approved replacement catcher. Give the lawn mower
model number when ordering.
13
Page 14
CUSTOMER RESPONSIBILITIES
ENGINE
LUBRICATION
Use only high quality detergent oil rated with API service
classification SF or SG. Select the oil's S AE viscosity grade
according to your expected operating temperature.
SAE VISCOSITY GRADES
30“ 32" 40“ 60“ ' 60“ 100"0“
“C .30“ '
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 the first two hours of operation and
every 25 hours thereafter or at least once a year if the lawn
mower is not used for 25 hours in one year.
Check the crankcase oil level before starting the engine
and after each five (5) hours of continuous use. Tighten oil
plug securely each time you check the oil level.
TO CHANGE ENGINE OIL (See Fig. 12)
NOTE: Before tipping lawn mower to drain oil, drain fuel
tank by running engine until fuel tank is empty.
® Disconnect spark plug wire from spark plug and place
wire where it cannot come in contact with spark plug.
® Remove engine oil cap; lay aside on a clean surface.
® Tip lawn mower on its side and drain oii into a suitable
container. Rock lawn mower back and forth to remove
any oii trapped inside of engine.
® Wipe off any spilled oil on lawn mower and on side of
engine.
« Fill engine with oil. Fill only to the “FULL" line on the
dipstick. DO NOT OVER FILL.
* Replace engine oil cap.
® Reconnect spark plug wire to spark plug,
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 it you mow in
very dusty, dirty conditions. Do not wash air filter.
TO CHANGE AIR FILTER (See Fig. 13)
® Remove the airfilter by turning counterclockwise 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.
20“ -10" Q“' 10“ 20" 30'= 40"
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE
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 easierand run better. Set spark plug gap at .030 inch.
CLEANING
IMPORTANT: FOR BEST PERFORMANCE, KEEP
MOWER HOUSING FREE OF BUILT-UP GRASS AND
TRASH. CLEAN UNDERSIDE OF MOWER HOUSING
AFTER EACH USE.
CAUTION; 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 DC NCT 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.
CLEAN UNDER DRIVE COVER
Clean under drive cover at least twice a season. Scrape
underside of coverwith putty knife orsimilartool to remove
any build-up of trash or grass on underside of drive cover.
14
Page 15
SERVICE AND ADJUSTMENTS
CAUTION: BEFORE PERFORMING ANY SERVICE OR ADJUSTMENTS: .
» Release control bar.
A
LAWN MOWER
TO ADJUST CUTTING HEIGHT
See "TO ADJUST CUTTING HEIGHT" in the Operation
section of this manual.
REAR DEFLECTOR
The rear deflector, attached between the rear wheels of
your lawn mower, is provided to minimize the possibility
that objects will be thrown out the rear of the lawn mower
into the operator's mowing position. If the rear deflector
becomes damaged, it should be replaced.
TO REMOVE/REPLACE DRIVE BELT (See Fig. 14)
" Remove drive cover. Remove belt by pushing down on
gear case pulley.
* Turn lawn mower on its side with carburetor and fuel
cap up.
“ Remove blade.
» Remove debris shield.
® Remove belt from engine pulley on crankshaft.
* Install new belt by reversing above steps.
« Always use factory approved belt to assure fit and long
life.
• 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.
FIG. 14
15
Page 16
SERVICEAND ADJUSTMENTS
TO ADJUST HANDLE (See Figs. 15 Thru 17)
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. Handies are shipped
mounted in the medium low position.
® To change from medium low to medium high position,
the upper and lower handle sections will have to be
turned over (See Fig. 15B).
® Remove the controls and operator presence control
bar from the upper handle.
® Remove the starter rope guide from the lower handle.
® Remove hairpin cotters.
“ Disconnect the lower handle from the handle brackets
(See Fig. 17).
* Turn the handle over and reassemble the hairpin
cotters that have been removed.
^ Reassemble the starter rope guide.
® Reassemble the controls and the operator presence
control bar to the upper handle.
CAUTION; The operator presence con
trol bar mustpivotfreely to permit blade
brake engagement when control bar is
released. Do not over tighten the
A
fasteners holding the controls to the
upper handle.
To change from medium low to high position only the
upper handle section will have to be turned over (See
Fig. 16A).
To change from medium lovv? to low position, oniy the
lower handle section will have to be turned over (See
Fig, 16B).
16
Page 17
SER¥ICE AND ADJUSTMENTS
ENGINE
ENGINE SPEED
Your engine speed has been factory set. Do not attempt
to increase engine speed or it may result in persona! injury.
If you beiieve that the engine is running too Wt ortoo slow,
take your lawn mower to an authorized service center for
repair and adjustment.
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 THINKTHE ENGINE-GOVERNED
HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR
NEAREST AUTHORIZED SERVICE CENTER, WHICH
HAS PROPER EQUIPMENT AND EXPERIENCE TO MAKE
ANY NECESSARY ADJUSTMENTS.
17
Page 18
STORAGE
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 "CLEANING" in the
Customer Responsibilities section of this manual).
® Lubricate as shown In the Customer Responsibilities
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 (See Fig, 18)
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 fonward.
® 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 lock into the mowing
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,
® Drain the fuel tank.
• Start the engine and let it run until the fuel lines and
carburetor are empty.
' Never use engine or carburetor cleaner products in the
fuel tank or permanent damage may occur.
® Use fresh fuel next season.
NOTE: Fuel stabilizer is an acceptable alternative in
minimizing the formation'of fuel gum deposits during stor
age. 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,
ENGINE OIL
Drain oil (with engine warm) and replace with clean engine
oil. (See "ENGINE" in the Customer Responsibilities
section of this manual).
CYLINDER
® Remove spark plug.
• Pour one ounce (29 ml) of oil through spark plug hole
into cylinder.
• Pull starter handle slowly a few times to distribute oil.
® Replace with new spark plug.
BATTERY
Disconnect the battery from the engine connector and
charge battery 48 hours.
FIG. 18
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 ENGINE
AND EXHAUST AREAS ARE STILL WARM.
CAUTION: Never store the lawn mower
with gasoline in the tank inside a build
ing where fumes may reach an open
flame or spark. Allow the engineto cool
before storing in any enclosure.
18
Page 19
REPAIR PARTS
22" ROTARY LAWN MOWER - - MODEL NO. 917.374590
GEAR CASE ASSEMBLY PART NUMBER 702511
KEY
NO.
10 57079
11
12
PART
NO.
1
17490416
2
137055X004
3
137053
4 57072
5
702710
6 48373
7
77881
8
137051
9
137074
131484
700343
DESCRIPTION
Tapping Screw 1/4-20 x 1-1/4
Engagement Bracket
Shifter
Seal
Grooved Pin 1/8 x 5/8
Gear Case Halves Kit (Includes Key
Nos. 4, 5, and 7)
Bearing
Worm Shaft
Drive Shaft
Hardened Washer
Clutch Yoke
Bushing
KEY
NO.
13 86447
14 137050
15 750436X
16 750369
17 12000003
18 850848
19 81585X004
NOTE: To reseal housing halves use Locktite No. 515,
NOTE: All component dimensions given in U.S. inches.
PART
NO.
Part No. 77923
1 inch = 25.4 mm
DESCRIPTION
Plug
Helical Gear
Clutch Jaw
Grease
E-Ring
Hi-Pro Key
Spring Bracket
19
Page 20
REPAIR PARTS
NS
O
CRAFTSMAN 22" ROTARY LAWN MOWER MODEL NUMBER 917.374590
Page 21
REPAIR PARTS
CRAFTSMAN 22" ROTARY LAWN MOWER MODEL NUMBER 917.374590
KEY PART
NO.
2
3
NO
1
850989X479
143697
144929
5 85827
6
136376
7
STD541425
9
48137
10
128415
11
86344
12
STD512505
13
85692
14
700494X479
15
700365X479
16
133190X479
17
fO
140661X479
20
140540
21
133170X479
22
85543
23
87677
25 83923
26 57143
88017
28
142748
29
61651
30
750913X004
31 701037
32 700331X004
34
84920
35 750085X007
37 55187
38
88348 Washer
39
140629X479
DESCRIPTION
Upper Handle
Engine Zone Control Cable
Screw
Cable Clip
Handle Knob
Locknut 1/4-20
Rear Door Kit
Pop Rivet
Seif Tapping Screw #10-24
Hex Tapping Screw 1/4-20 x 1/2
Machine Screw 1/4-20
Back Plate .
Side Baffle
Discharge Baffle
Rear Baffle
Rear Skirt
Mulcher Plate
Engine Pulley
Hi-Pro Key #505
Nut
Washer
Wheel & Tire Assembly
Shoulder Bolt 3/8-16
Belleville Washer
Axle Arm Assembly
Selector Knob
Selector Spring
Spacer
Wheel Adjusting Bracket
Thread Cutting Screw 5/16-18 x 3/4
Handle Bracket Assembly (Left)
KEY
NO.
40
41
42
43
PART
NO
140628X479
850998
750097
87930
44 48381
45
83253
46
851514
47
141114
48
851074
49
850263
50
851084
51
700869X479
52
85463
53
74760612
55 751592
56 88652
57
51793
58
84676X479
59
131959
61
103672X
62
134612
64
141136
66
700170X479
67
700172X479
68
86969
145153
Available accessori
71 33723
71 33623
71 33500
7133300
Z133417
7133316
71 33303
DESCRIPTION
Handle Bracket Assembly (Right)
Hex Head Thread Rolling Screw 3/8-16 x 1-1/8
Hex Washer Head Screw #10-24 x 1/2
Guide Clip .
Lawn Mower Housing (Incl. Key #14,15,17, 51 & 52)
Screw
Blade Adapter
Blade 22"
Hardened Washer
^ Helical Washer 3/8-24 x 1-3/8 Grd. 8
Hex Head Machine Screw 3/8-24 x 1-3/8 Grd. 8
Front Baffle
Danger Decal
Bolt
Locknut 3/8-16
Hinge Screw
Hairpin Cotter
Lower Handle
Handle Bolt
Rope Guide
Debris Shield
Engine - Craftsman - Model No. 143.945502
Support Bracket (Right)
Support Bracket (Left)
Spacer
Owner's Manual (English/Spanish)
5S not included with lawn mower;
High Wheel Kit
Gas Can (2.5 gal.)
Fuel Stabilizer
SAE 30W Oil (20 oz.)
Dust Shield
Mower Cover
Chute Deflector
Page 22
REPAIR PARTS
!0
CRAFTSMAN 22" ROTARY LAWN MOWER MODEL NUMBER 917.374590
Page 23
REPAIR PARTS
CRAFTSMAN 22" ROTARY LAWN MOWER MODEL NUMBER 917.374590
to
W
KEY
NO.
10
11 700953
12
13 137054 Pinion
14 88080 Dust Cover
15 88118 Feit Washer
16 67725
17 850771
PART
NO.
1
48225 Drive Head Kit
2 142098 Drive Control
4
144929
5 137078 V-Belt
6 700875
7 85179 Retainer Clip
8 77400
9
52160 Washer
86960 Nylon Bushing
12000058 E-Ring
DESCRIPTION
Pan Head Machine Screw 1/4-20
Carriage Bolt 1 /4-20 x 2-3/4
Hubcap
Wheel & Tire Assembly
Washer 1/2 x 1-1/2 x .134
Control Bar
KEY
NO.
18
25
26
27
28
31
32
33
35
36
37
38
40
41
52
53
54
55
PART
NO
701037
702182
87866
750097
700989
132010
137052
48375
751809
702511
137090
STD541425
75192
751810
144748
144747
141245
86012
DESCRIPTION
Selector Knob
Drive Cover Decal
Pan Head Tapping Screw
Hex Washer Head Screw
Drive-Cover“'
Hex Flange Nut
Drive Pulley
Drive Control Cable Kit
Wheel Adjuster Assembly
Gear Case Assembly
Spring
Hex Locknut 1/4-20
Spring
Wheel Adjuster Assembly
Catcher Tube
Catcher Throat
Grassbag Assembly
Driveshaft Cover
#10-24x2-3/4
#10-24x3/4
Page 24
REPAIR PARTS
22" POWER PROPELLED LAWN MOWER - - MODEL NO. 917.374S90
KEY
NO.
1
86334X479
2
86337X479
3
750909
4 750097
5 86353
6
111549X
7
86649
8
134861
PART
NO.
DESCRIPTION
Battery Bracket
Battery Cover
Battery
Hex Washer Head Screw
#10-24 x1/2
Connector Mounting Clip
Battery Charger
Battery Pad
Battery Wrap
24
Page 25
CRAFTSMAN 4-CYCLE ENGINE
tWOOa and SERIAL
MODEL NO. 143.945502
Page 26
CRAFTSMAN 4-CYCLE ENGINE
MODEL NO. 143,945502
REF PART
NO. NO.
1
36478
2
26727
6
33734
7
34214A
8
33735
9
30200
12
33886
12B
34695
14
28277
15
30589
16
31383A
17
31335
18
650548
19 36281
20
32600
30 35801
40
36073
36074
36075
41
36070
36071
36072
42
36076
36077
36078
43
20381
45
32875
46
3261OA
48
27241
50
35992
52
29914
69
35261
70
34311D
72
30572
73
28833
75 27897
80
30574A
81
30590A
82
30591
83
30588A
86
650488
89
611004
90
611044
92
650815
93
650816
100
34443A
101
610118
103
650814
110
34961
110E
i 34970
119
36477
120
36476
125 36471
36472
126
29314B
29315C
130
6021A
135
35395
150
35991
151
31673
166
35827
169
27234A
172
32755
174
30200
DESCRIPTION
Cylinder (Includes Ref. #2 and 20)
Dowel Pin
Breather Element
Breather Assy. (Incl.
#6,8,9,12,128)
. f Breather Gasket
Screw #10^24 X 9/16 .
Breather Tube
Breather Tube Elbow
'Washer
Governor Rod (Includes Ref. #14)
Governor Lever
Governor Lever Clamp
Screw #8-32x5/16"
Extension Spring
Oil Seal
Crankshaft
Piston, Pin & Ring Set, Std. Size
Piston, Pin & Ring Set, .010" Over
Piston, Pin & Ring Set, .020" Over
Piston & Pin Assembly, Std. Size
Piston & Pin Assembly, .010" Over
Piston & Pin Assembly, .020" Over
(Assemblies Include Ref. #43)
Ring Set, Piston, Standard Size
Ring Set, Piston, .010" Oversize
Ring Set, Piston, .020" Oversize
Piston Pin Retaining Ring
Connecting Rod Assy. (Inci. #46)
Connecting Rod Bolt
Valve Lifter
Camshaft (MCR)
Oil Pump Assembly
* Mounting Flange Gasket
Mounting Flange (Includes #72-83)
Oil Drain Plug
Drain Plug Gasket
Oil Seal
Governor Shaft
Washer
Governor Gear Assy. (Incl. #81)
Governor Spool
Screw 1/4-20x1-1/4
Flywheel Key
Flywheel
Belleville Washer
Flywheel Nut
Solid State Ignition
Spark Plug Cover
Screw, Torx T-15 #10-24x1
Ground Wire
Ground Wire
* Cylinder Head Gasket
Cylinder Head
Exhaust Valve, Standard Size
Exhaust Valve, 1/32" Oversize
Intake Valve, Standard Size
Intake Valve, 1/32" Oversize
(All Valves Include Reference
#151)
Screw 5/16-18 X 1-1/2
Resistor Spark Plug (RJ19LM)
Valve Spring
Valve Spring Cap
Engine Shroud
* Valve Cover Gasket
Valve Cover
Screw #10-24x9/16
REF PART
NO.
NO.
178 29752
182
6201
184
26756
185
31384A
186 34337
189
650831
190 35831
191
35039B
192
34966
193
34965
194
32309
195
610973
200 35727
202
36482
203
31342
204
650549
205
650777
207
34336
215 35511
223
650451
224
34690A
238 650932
239
34338
241
35797
245 35066
250
35065
260
35826
262
650831
263A
275
275B
276 33753
277 650988
277A 650795
285 35000
287 650926
290 34357
292 26460
300 35586
301 35355
305 35819A
306 34265
307 35499
309 650936
310 35822
313 34080
314 650767
315 34990
322 35013
347 650898
370 36261
370A 35167
380 632681
390 590702
395 35707
400 36481
RPM Settings: Low 2450-2750; High 2900-3200
NOTE: This engine could have been built with 590637
starter. Refer to design of air intake louvers for part
I.D. Individual starter parts do not interchange,
NOTE: All component dimensions given in U.S. inches
26
35821
36473
391020
1 inch = 25.4 mm
DESCRIPTION
Nut and Lock Washer 1/4-28
Screw 1/4-28x7/8
* Carburetor To Intake Pipe Gasket
Intake Pipe (Includes Ref. #224) .
Governor Link
Screw 1/4-20 X 3/8
Brake Lever
S.E. Brake Bracket (Includes
#195)
Brake Control Link
Brake Spring
Retaining Ring
Terminal
Control Bracket (Inci. #202-205)
Compression Spring
Compression Spring
Screw #5-40x7/16
Screw #6-32x21/32
Throttle Link
Control Knob
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 1/4-20x1/2
Starter Grill
Muffler (Includes Reference #277)
Spark Arrestor Muffler (Optional)
(includes Reference Number
277A)
Locking Plate (Optional)
Screw 1/4-20x2-13/64
Screw 1/4-20 X 2-1/4 (Optional)
Starter Cup
Screw #8-32x21/64
Fuel Line
Fuel Line Clamp
Fuel Tank (Includes #292 and 301)
Fuel Cap
Oil Fill Tube
* “0”-Ring .
“0”-Ring
Screw #10-32x13/32
Dipstick
Spacer
Screw #8-32x27/64
Alternator Coil
Connector Body
Screw #10-32x27/32
Instruction Decal
instruction Decal
Carburetor (includes Ref. #184)
Rewind Starter
Electric Starter Motor, 12 Volt
* Gasket Set (Ind. Items Marked *)
Page 27
CRAFTSMAN 4-CYCLE ENGINE
MODEL NO. 143.945502
CARBURETOR NO. 632681
REF PART
NO. NO. DESCRIPTION
- - 632681 Carburetor, Complete
(includes Reterence Number 184
of Engine Parts List)
1 631615 Throttie Shaft & Lever Assembly
2 631767 Throttle Return Spring
4 631184 Dust Seal Washer
5 631183 Dust Seal, Throttle
6 632504 Throttle Shutter
7 650506 Shutter Screw
16 631775 Fuel Fitting
25 631867 Float Bowl
27 631024 Float Shaft
28 632019 Float
29 631028 Float Bowl “O” Ring
30 631021 Inlet Needle, Seat, and Clip
(includes Reference Number 31)
31 631022 Spring Clip
35 36045 Primer Bulb/Retainer Ring
35A 632647 Primer Bulb Filter
40 632682 High Speed Bowl Nut
44 27110 Bowl Nut Washer
48 631027 Welch Plug, Atmospheric Vent
ELECTRIC STARTER NO. 35707
REF PART
NO. NO. DESCRIPTION
35707 Electric Starter, 12 Volt, Complete
1 34955 Retainer Ring
2 34950 ‘ Spring Retainer
3 34954 Spring
4A 34949A Gear
5B 34953 Drive End Cap Assembly
6 33450 Lock Nut
7 34944 Armature
8 34945 Housing Assembly
10A 590500 Thrust Washer
lie 34942 Commutator End Cap Assembly
(includes Brushes)
12 34947 Bolt #10-32x3-3/16
13 34946 Pinion Driver
14 34951 Cup Washer
15 34952 Retainer Ring
16 34948 Washer
17 34953 Drive Nut
18 590608 Washer
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
27
Page 28
CRAFTSMAN 4«CYCLE ENGINE
MODEL NO. 143.945502
REWIND STARTER NO. 590702
REWIND STARTER NO. 590637
REF PART
NO. NO.
- 590702
1 590599A
590600
2
590696
3
590601
4
590697
5
590698
6
7
590699
8 590700
11 590703
12 590535
13 590701
NOTE: Ail component dimensions given in U.S. inches
1 inch = 25.4 mm
REF PART
NO. NO.
_ _
590637
1 590599A
2 590600
3 590615
4 590601
5 590598
6 590616
7 590617
590618A
8
9 590619
10
590620
11 590638
12
590535
13 590452
DESCRIPTION
Recoi! Starter, Complete
Spring Pin (Includes Reference #4)
Washer
Retainer
Washer
Brake Spring
Starter Dog
Dog Spring
Pulley & Rewind Spring Assembly
Starter Housing Assembly
(40 Degree Grommet)
Starter Rope (98" Long, 9/64" Dia.)
Starter Handle
DESCRIPTION
Recoil Starter, Complete
Spring Pin (Includes Reference #4)
Washer
Retainer
Washer
Brake Spring
Starter Dog
Dog Spring
Pulley Assembly (Includes
Reference Numbers 9 and 10)
Rewind Spring
Spring Cover
Starter Housing Assembly
(40 Degree Grommet)
Starter Rope (98" Long, 9/64" Dia.)
Starter Handle
NOTE: All component dimensions given in U.S. inches
1 inch = 25,4 mm
28
Page 29
SERVICE NOTES
29
Page 30
VICE NOTES
30
Page 31
TROUBLESHOOTING POINTS
PROBLEM CAUSE CORRECTION
Does not start
Loss of power 1. Rear of lavi/n mower housing/blade dragging
Poor cut - uneven 1. Worn, bent or loose blade.
Excessive vibration
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. .
10, Weak battery.
11. Disconnected battery connector.
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.
2. Wheel heights uneven.
3. Low engine speed.
4. Buildup of grass, leaves, and trash under mower.
1, Worn, bent or loose biade.
2, Sent engine crankshaft.
1. Clean/repiace air filter.
2. Fill fuel tank.
3. Drain tank and refili with fresh clean fuei.
4. Drain fuel tank and carburetorand refili tank with fresh
gasoline.
5. Connect wire to plug.
6. Replace spark plug.
7. Tighten biade boit or replace blade adapter.
8. Depress control bar to handle.
9. Replace control bar.
10. Charge battery.
11. Connect battery to engine
1. Set in "Higher Cut" position.
2. Set in “Higher Cut” position.
3. Clean/repiace air filter.
4. Clean underside of mower housing.
5. Check oil level.
6. Cut at slower walking speed.
1. Replace biade. Tighten biade bolt.
2. Set ail wheels at same height.
3. Set engine speed control in fast position,
4. Clean underside of mower housing.
1, Replace blade. Tighten blade boit.
2, Contact authorized service center/department.
Starter rope hard to pui! 1. Engine flywheel brake is on when control bar is
Loss of drive 1. Drive wheels not turning with drive control engaged.
Grass catcher not fiiftng
(If so equipped) 2. Lift on biade worn off.
Hard to push
released.
2. Bent engine crankshaft
3. Blade adapter broken.
4. Blade dragging in grass.
2. Belt not driving.
1. Cutting height too low.
3. Catcher not venting air.
4. Low engine speed.
1. Grass is too high or wheel height is too low.
2. Rear of lawn mower housing/blade dragging
in grass.
3. Grass catcher too full.
4. Handle height position not right for you.
1. Depress control bar to upper handle before
pulling starter rope.
2. Contact authorized service center/department.
3, Replace blade adapter.
4, Move lawn mower to cut grass or to hard surface
to start engine.
1. Adjust or replace drive control cable, if broken.
2. Put belt on pulleys or replace belts if broken.
1. Raise cutting height.
2. Replace blade.
3. Clean grass catcher.
4. Set engine speed control in fast position.
1. Raise cutting height.
2. Raise rear of lawn mower housing one (1)
setting higher,
3. Empty grass catcher.
4. Adjust handle height to suit.
31
Page 32
smm
CRRFTSM RN®
OWNER’S
MANUAL
5.5 HORSEPOWER
22" REAR DISCHARGE
POWER PROPELLED
3 IN ONE CONVERTIBLE
ROTARY LAWN fVfOWER
Each lawn mower has its own mode! number. Each en
gine has its own model number.
The model number for your lawn mower will be found on a
MODEL NO.
917.374590
IF YOU NEED
REPAIR SERVICE
OR PARTS:
FOR REPAIR SERVICE, CALL • PART NUMBER
THIS TOLL FREE NUMBER;
1-800-4-REPAIR
(1-800-473-7247)
FOR REPLACEMENT PARTS
INFORMATION AND
ORDERING, CALL THIS
TOLL FREE NUMBER:
1-800-FON-PART
(1-800-366-7278)
decal attached to the rear of the lawn mower housing.
The model number for your engine will be found on the
blower housing of the engine.
All parts listed herein may be ordered from any Sears,
Roebuck and Co. Service Center/Department and most
Retail Stores.
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE
FOLLOWING INFORMATION:
. PRODUCT - LAWN MOWER
• MODEL NUMBER - 917.374590
• ENGINE MODEL NO. -143.945502
• PART DESCRIPTION
Your Sears merchandise has added value when you
consider Sears has service units nationwide staffed with
Sears trained technicians... professional technicians
specifically trained to insure that we meet our pledge to
you, we service what we self.
32
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