Craftsman 917383340 User Manual LAWN MOWER Manuals And Guides 1012169L

User Manual: Craftsman 917383340 917383340 CRAFTSMAN LAWN MOWER - Manuals and Guides View the owners manual for your CRAFTSMAN LAWN MOWER #917383340. Home:Lawn & Garden Parts:Craftsman Parts:Craftsman LAWN MOWER Manual

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Page Count: 24

SEARS
MODELNUMBER917.383340
®
OWNER'SMANUAL
-"Assembly
"Operation
"Maintenance
"Service
"Adjustments
"RepairParts
Caution:
Readand Follow
all SafetyRules
andInstructions
BeforeOperating
ThisEquipment
IIIIIIII IIIII I IIIIII IIIIIIIIIIIIIIII IIIIIII I I
IIII1[ II II I
SAFETYRULES
cA,.n-,o.: 0.s oNN cr .oo ANoP.ACFW,R
A/%.
A]llk WHERE JT CANNOT CONTACT SPARK PLUG TO PREVENT ACCID[::NTAL
START,NOW.E.SE T,NO-UP.TRANS O T.',Oo ,:,JUST,.OMA :,NO
RE ' .I STOYOUR .WNMOWER.
IMPORTANT
FEDERAL REGULATIONS REQUIRE OPERATOR PRESENCE BLADE STOP CONTROLS TO MINIMIZE THE
RISK OF BLADE CONTACT INJURY. YOUR LAWN MOWER IS EQUIPPED WITH SUCH CONTROLS. DO
NOT ATTEMPT TO DEFEAT THE FUNCTION OF THE OPERATOR PRESENCE CONTROL UNDER ANY
CIRCUMSTANCES.
BE CAREFUL-WHEN THE ENGINE IS RUN-
NING THE BLADE IS TURNING.
Please read your owner's manual. Only allow
persons who know the safety rules to use your
lawn mower.
DO NOT tie the operator presence control bar
to the handle. Control must be free to permit
brake engagement when handles and control
are released.
DO NOT allow children to use your lawn
mower.
Check your lawn mower over before each use.
Tighten any loose bolts, nuts, etc.
Remove all sticks, stones, wires, cans, boards,
etc. from area to be mowed. These objects can
be thrown by the blade.
DO NOT allow children, bystanders or pets in
the area while mowing.
*Always wear shoes when mowing. DO NOT
operate lawn mower when barefoot or wear-
ing open sandals.
* Always wear safety glasses or eye shields
before starting your lawn mower and while
mowing.
Always shut off engine before trying to adjust
whee/heights.
When engine is running, DO NOT put hands
or feet under lawn mower or in the discharge
chute, nor make any adjustments.
Stay clear of discharge opening at all times.
Do not fill gas tank when engine is running,
when indoors or when engine is hot. Allow
engine to cool for several minutes before fill-
ing gas tank. Clean off any spilled gasoline
before starting engine.
Mow only in goodlight.
Always stop blade when not cutting grass or
when crossing gravel drive, sidewalk, or
roadway.
DO NOT continue to run your lawn mower if
you hit a foreign object. Stop the engine,
disconnect the spark plug wire from the spark
plug, inspectthe lawn mower for damage and
make repairs as required.
DO NOT use a damaged lawn mower. Always
have damage repaired before mowing.
DO NOT run your lawn mower if it vibrates
too much. Stop engine and make repairs.
Vibration is an indication of damage.
Never useyour lawn mower without proper
guards or deflectors in place.
*Always mow across a slope or inclined area.
DO NOT mow up or down a slope or inclined
area.
DO NOT mow in wet grass. Be careful of
footing when mowing in wet grass, use shoes
with good traction.
DO NOT run with the lawn mower.
* DO NOT run your lawn mower indoors. Ex-
haust gases are deadly poison.
Always disconnect the spark plug wire from
spark plug to prevent accidental starting when
transporting or storing your lawn mower after
the mowing season.
DO NOT attempt to raise engine speed above
factory settings. Engine damage or personal
injury may result.
If a grass catcher is used on your lawn mower,
check the catcher often for damage or
deterioration. It will wear through normal use.
Use only a recommended replacement catcher.
Always stop blade to remove or install catcher.
DO NOT store your lawn mower or gasoline
where fumes may reach an open flame and
cause a fire.
DRAIN THE GASOLINE from your lawn
mower before transporting your lawn mower
inside your car or other vehicle.
i iiii _1 H
LOOKE0R Tills SYMBOLTO POINTOUTIMPOR-
TANTSAFETYPRECAUTIONS.IT MEANS--ATTEN-
TION!!! BECOMEALERT!!!YOUR SAFETYIS
INVOLVED.
2
CON_J,TULATIONSonyourpurchaseof a SearsCraft-
sman Lawn Mower. It has been designed,
engineeredand manufacturedto giveyouthebest
passibledependabilityand performance.
Shouldyouexperienceanyproblemyoucannoteasi-
ly remedy,pleasecontact your nearest Sears Ser-
vice CenteriDepartment. We have competent, well-
trained technicians and the proper tools to service
or repair this unit.
Please read and retain this manual. The instructions
will enable you to assemble and maintain your lawn
mower properly. Always observe the "SAFETY
RULES".
ii
MODEL
NUMBER 917.383340
SERIAL
NUMBER.
DATE OF
PURCHASE
THE MODEL AND SERIAL NUMBERS WILL BE
FOUND ON A DECAL ATTACHED TO THE REAR
OF THE LAWN MOWER HOUSING.
YOU SHOULD RECORD BOTH SERIAL NUMBER
AND DATE OF PURCHASE AND KEEPIN A SAFE
PLACE FOR FUTURE REFERENCE.
PRODUCTSPECIFICATIONS
ii i iiii
HORSE POWER:
DISPLACEMENT:
III I
GASOLINE CAPACITY:
i
OIL (21 oz. Capacity):
iiii
SPARK PLUG (GAP .030 in.):
i| i i ii i
VALVE CLEARANCE: Intake:
Exhaust:
I II
SOLID STATE IGNITION
AIR GAP:
i i i
BLADE BOLT TORQUE:
i
4.0
i
10.49 cu. in.
i
1.0 quart
(Unleaded)
SAE 30 or
(SAE 10W30)
ii i
Champion
RJ19-LM or
Sears 7_ 33312
or STD 361458
|ll
.008 in.
.008 in.
.0125 in.
35-40 ft.-Ibs.
MAINTENANCEAGREEMENT
A Sears Maintenance Agreement is available on this product. Contact your nearest Sears store for details.
CUSTOMERRESPONSIBILITIES
* Read and observe the safety rules.
* Follow a regular schedule in maintaining, caring for and using your lawn mower.
* Follow the instructions under "Maintenance" and "Storage" sections of this Owner's Manual.
TWOYEARLIMITEDWARRANTYON CRAFTSMANPOWERMOWER
For twoyears from the date of purchase,whenthisCraftsmanLawnMower ismaintained,lubricatedand tuned-
up accordingto the instructions'in the owner's manual, Sears will repair, free of charge, any defect in material
and workmanship.
If thisCraftsman Lawn Mower is used for commercialor rental purposes, thiswarranty applies for only 90
days from the date of purchase.
This warranty does not cover:
Expendable itemswhich becomeworn during normal use, suchas rotacy mower blades, blade adapters,
belts, air cleaners and spark plug.
Repairs necessarybecauseof operator abuse or negligence, includingbent crankshaftsand the failure to
maintain the equlpment accordE'ngto the instructionscontained in the owner's manual.
WARRANTY SERVICE IS AVAILABLE BY RETURNING THE CRAFTSMAN POWER MOWER TO THE
NEAREST SEARS SERVICE CENTERIDEPARTMENT IN THE UNITED STATES. THIS WARRANTY APPLIES
ONLY WHILE THIS PRODUCT IS IN USE IN THE UNITED STATES.
Thiswarranty gives you specificlegal rights, and you may also have other rightswhich may vary from state
to state.
Sears, Roebuck and Company, D/731CR-W, Sears Tower, Chicago, IL 60684
11111111 II11 II I I III II IULUlI[
3
TABLEOFCONTENTS
SAFETY RULES ........................ 2
PRODUCT SPECIFICATIONS ............. 3
CUSTOMER RESPON51BiLITIES ........... 3
WARRANTY ........................... 3
LAWN MOWER ACCESSORIES ......... 5
ASSEMBLY .......................... 5,6
OPERATION .................. 7-9
MAINTENANCE .................. 10,1 1
SERVICE AND ADJUSTMENT 12
STORAGE ....... 13
SERVICE RECOMMENDATION'S 14
TROUBLE SHOOTING ....... 15
REPAIR PARTS-LAWN MOWER .. 16,17
REPAIR PARTS-ENGINE 18-21
PARTS ORDERING/SERVICE" ' "Back Cover
INDEX
Adjustments:
Carburetor 12
Handle Height 12
Height of Cut . 8
Air Filter:
Replacement 1I
Assembly:
Grass Catcher .6
Handle ..... 5
Accessories 5
Blade:
Replacement .10
Sharpening 10
Controls:
Engine Zone Control Cable . 8
Operator PresenceControl Bar .7
Engine Speed Control ...... 8
Customer Responsibilities ..... 3
Cutting Levels .8
Engine:
Oil Cap .. .9
Oil Change 11
Oil Level ........ 9
Oil Type .9
Starting ......... 9
Storage 13
Handle:
Adjustment 12
Assembly 5
Knob 7
L
Lubrication:
Brake Spring Bracket 14
Engine . 14
Front Wheel Adjuster 14
Handle Bracket Mounting Pin 14
M
Maintenance:
Agreement 3
Air Filter 11
Blade CarelReplacement 10
Grass Catcher 11
Lubrication .... 14
Spark Plug ..... 11
Mowing Tips 9
Oil:
Engine .. 9
Storage 13
Operation:
Operating Lawn Mower 7-9
Operator PresenceControl Bar 7
Options:
Attachments.... 5
Parts ..... 16,17
Safety Ru|es 2
Service and Adjustments:
Carburetor 12
Engine Speed 12
Rear Deflector 12
Handle 12
Service Recommendation 14
Spark Plug ! 1
Specifications 3
Speed Control:
Engine 8
Starting the Engine 9
Starter Handle 7,9
Stopping Your Lawn Mower 9
Storage 13
T
TroubleShootingChart 15
W
Warranty 3
Wheels:
Wheel Adiusters 7,8
Fue|:
Type .9
Storage 13
R
Repair/Replacement Parts 24
Responsibilities,Customer .. 3
4
I III II IIIII I
LAWNMOWERACCESSORIES
I I i III
These accessories were available when this lawn mower was produced. They are also available at most Sears
retail outlets, catalog and service centers. Most Sears stores can 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
SPARKPLUG MUFFLER
©
II I IIIIII
AIR FILTER GASCAN ENGINEOIL
III I I
III
STABILIZER
LAWNMOWERMAINTENANCE
|l .i I i
BELT BLADE BLADEADAPTER WHEELS LAWNMOWERCOVER
IU III I I IIIII I
ASSEMBLY
I IIII I [
Your lawn mower has been assembled at the fac-
tory except for the grass catcher bag and the grass
catcher frame.
TOREMOVELAWNMOWERFROMCARTON
Cut down the corners of the carton and lay ends
and sides down.
Cut the plastic wrapping and remove from over
handles and lawn mower.
Remove loose parts if included with lawn mower,
(i.e. grass catcher, catcher frame, hardware pack,
etc.).
Roll lawn mower out of carton and check carton
thoroughly for loose parts.
HOWTOSET-UPYOURLAWNMOWER
TO UNFOLD HANDLE
Remove any packing material from around control
bar.
Raise lower handle section until it is in the upright
storage detents (See Figs. 1 & 2).
Raise upper handle section until it is in-line with
lower handle and tighten one handle knob.
Lower the entire handle assembly to the mowing
position and engage the height adjustment links
onto the handle bracket pins (See Fig. 2).
See "Adjust Handle" section, page 13 to select
the most comfortable mower handle position.
I I III III I IIIIIIIIIIIIII
IIII IIII II I
CONTROL BAR,,_ ,"-,.
UPPER HANDLE_ /-/// _":" _'_
/, /_t
'"--.//// ! ,;." .._"
II/1 LOWER ,;/ ,,;,,
rV/// HANDLE ,_/ ,'/
HANDLE KNOB_ [_Y/ /m/,'.','_,_. /.',"
_r._ "_ ;._-"-- _ .. _.,.-'c'--"-_k.. .... "','," POSITION
I[ I II
FIG. I
II I
STORAGE
(L DETENTS
li ii I [ i
FIG. 2
II
I IIIII
IIIII
_JUIL
I lllll LII I I I
!'0 UNFOLDHANDLE(CONT'D)
ASSEMBLY
Your Lawn Mower has been shipped with Pro-
tective Handle Padsplaced between the upper
and lower sections of the handle. For best lawn
mower performance these Pads need to be
discarded after the handle is placed in the mow-
ing position.
Once the Handle is in the mowing position,
remove the Handle Knob, Handle Bolt and Pro-
tective Pad from the side with the loose Handle
Knob. (Make sure the other side is tight to sup-
port the Upper Handle).
Discard the Pad and reinstall the Handle Bolt and
Knob--Tighten securely.
Loosen and remove the Handle Knob, Handle
Bolt and Protective Pad from the other side and
discard the Pad.
Reinstall the Handle Bolt and Knob-- Tighten
securely. Now your handles should be clamped
together without the protective pads.
TO ASSEMBLE& ATTACHGRASSCATCHER
Put grass catcher frame into grass bag with stiff
part of bagon the bottom (See Fig. 3).Make sure
the framehandle is outside of the bag top.
Slip vinyl bindings over frame (See Fig. 3).
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.
Lift the rear door of the lawn mower and place
the catcher frame side hooks onto the handle
bracket hooks (See Fig. 4).
The grass catcher is secured to the lawn mower
housing when the rear door is lowered onto the
grass catcher frame.
CAUTION: DONOTRUN YOURLAWNMOWER
WITHOUTCLIPPINGDEFLECTOROR APPROVED
GRASSCATCHERIN PLACE.NEVERATTEMPTTO
OPERATETHELAWNMOWERWITH THEREAR
DOORREMOVEDOR PROFI_DOPEN.
CATCHER
HANDLE
FIG. 3
CATCHEI
FRAME
S{DE HOOK
BRACKET
FIG.4
II II I llIIl
FRAME
OPENING
DOOR GRASS
-CATCHER
FRAME
I II I III
OPERATION
IIIIIIIIIII I [ III
KNOWYOURLAWNMOWER
READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR LAWN MOWER. Com-
pare the illustrations with your Lawn Mower to familiarize yourself with the location of various controls
and adjustments. Save this manuaJ for future reference.
OPERATOR PRESENCE CONTROL BAR
ENGINE ZONE CONTROL
STARTER HANDLE
GRASS
GASOLINE FILLER CAP
OIL FILLER
WITH DIPSTICK
WHEEL AD,
(ON EACH WHEEL)
LAWN MOWER HOUSING
FIG. 5
I I IIIIIII II I III I IlI. I I
MEETSCPSCSAFETYREQUIREMENTS
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.
IIIIIIIII II I III
rOPERATOR PRESENCE CONTROL BAR- must be
held down to the handle to start the engine. Release
to stop the engine.
IIlll II IIIIII IIIIIIIIII I
STARTER HANDLE - used for starting the engine.
OPERATION
II I II BilL[
HOWTO USEYOURLAWNMOWER
ENGINESPEEDCONTROL
The engine speed is controlled by a lever (red knob)
Iocatedon the left side of the engine. "HIGH" posi-
tion is for starting engine, normal cuffing and better
grass bagging. "LOW" position is for fight cuffing,
trimming and fuel economy (See Fig. 6).
ENGINEZONECONTROL
CAUTION:FEDERALREGULATIONSREQUIREAN
ENGINECONTROLTO BE INSTALLEDON THIS
LAWNMOWER IN ORDERTO MINIMIZE THE
RISKOF BLADECONTACTINJURY. DO NOT
UNDERANY CIRCUMSTANCESATTEMPTTO DE-
FEAT THE FUNCTION OF THE OPERATOR
CONTROL.THEBLADETURNSWHENTHEENGINE
IS RUNNING.
* Your Lawn Mower is equipped with an Operator
Engine Control Bar which requires the operator
to be positioned behind the lawn mower handle
to start and operate the lawn mower.
TO EMPTYGRASSCATCHER
To remove grass catcher, release operator
presence control bar to stop engine.
Lift up rear door and remove the grass catcher
by the handle.
Empty by shaking catcher with open end
downwards (See Fig. 7).
Do not drag the bag when emptying; it will cause
unnecessary wear.
TO ADJUSTCUTTINGHEIGHT
Raise wheels for low cut and lower wheels for
high cut.
W-heels are set in a low cut for shipping. Adjust
cutting height to suityour 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 (See Fig. 8).
I
ENGINE SPEED
iiii ii i Jl_
FIG. 6
IMER
IJllLl
FIG. 7
FIG. 8
/
Hill I[I
8
BEFORESTARTINGENGINE
IIIII
OPERATION
OIL:
A 20 oz. bottle of Pennzoil SAE 30 Oil is included
with your new lawn mower.
Remove engine oil cap with dipstick (See Fig. 9)
and fill to the FULL line on the dipstick.
Use 20 ozs. of SAE 30 oil. SAE lOW 30 oil can
also be used. DO NOT use SAE 10W 40 oil.
POUR OIL SLOWLY. DO NOT OVER FILL.
* Check oil level before each use. Add oil if need-
ed. Fill to FULL line on dipstick.
To read proper level, tighten engine oil cap each
time.
Replace 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:
Fill gasoline tank with fresh, clean unleaded
gasoline. DO NOT USE PREMIUM GASOLINE.
BE CAREFUL NOT TO OVERFILL TANK (SEE
FIG. 9).
WARNING: Experience indicates that alcohol blend-
ed 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 systemof an engine while in storage.
To avoid engine problems, the fuel system shouldbe
emptied before storage for 30 days or longer. Drain
the gas tank, start the engine and let it run until the
fuel/ines 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.
TOSTARTENGINE
To start acold engine, push Primer five (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.
Push Engine Speed Control Lever forward to
HIGH position.
Hold Operator Presence Control Bar down to the
handle and pull Starter Handle quickly. Do not
allow starter rope to snap back.
To STOP engine, release Operator Presence Con-
trol Bar.
"_GASOLINE FILLER CAP
ENGINE OIL CAP
W.'D_PSTICK
III II I I III
FIG. 9
NOTE: In cooler weather it may be necessary to
repeat priming steps. In warmer weather over prim-
ing may cause flooding and engine will not start, tf
you do flood engine wait a few minutes before at-
tempting to start and DO NOT repeat priming steps.
MOWINGTIPS
Under certain conditions, suchas 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.
For extremely heavy cutting, reduce the width of
cut and raise the rear of the lawn mower hous-
ing one (1) wheel adjuster setting higher than the
front for better discharge of grass.
For better grass bagging and most cutting con-
ditions, the engine speed should be set in the
"HIGH" (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 grass clippings is left on the right side
of a rear discharge lawn mower, mow in a
clockwise direction with a small overlap to col-
lect the clippings on the next pass.
Pores in cloth grass catchers can become filled
with dirt and dust with use and catchers wilt col-
lect less grass. To prevent this, regularly hose cat-
cher 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.
MAINTENANCE
I I II II IIIII
GENERALRECOMMENDATION
Once a year you should replace the spark plug,
air filter and check blade for wear. Anew spark
plug and air filter assuresproper air-fuel mixture
andheips your engine run better and last longer.
=You should check all fasteners and be sure they
are tight.
Follow the Service Recommendation Schedule on
page 14.
LAWNMOWER
BLADE/BLADEADAPTERCARE
Your lawn mower will work better with a sharp
blade.
CAUTION: DISCONNECTSPARKRUG WIRE
,_ FROMSPARKPLUGAND PLACEWIRE WHERE
ITCANNOTCOMEINCONTACTWITHTHE_ARK
PLUG.
TO REMOVE BLADE:
Turn lawn mower on its side. Make sure air filter
and carburetor are up.
Use block of wood between blade and lawn
mower housing to prevent blade from turning
when removing the 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,
Iockwasher and hardened washer) (See Fig. 10).
NOTE:Remove the blade adapter and check the key
inside hub of blade adapter. The key mustbe in good
condition to work properly. Replace adapter if
damaged.
TO REPLACE BLADE:
Position the blade adapter on the engine
crankshaft. Be sure key in adapter and key way
in crankshaft are aligned.
Position blade on to the blade adapter aligning
the two (2) holes in the blade with the raised lugs
on the adapter.
NOTE=Be sure the word TOP (stamped on the blade)
is toward the engine (See Fig. 10).
Install the blade bolt with the lackwasher and
hardened washer into blade adapter and
crankshaft (See Fig. 10).
FIG. 10
* Use block of wood between blade and lawn
mower housing and tighten the blade bolt, turn-
ing clockwise.
The recommended tightening torque is 35-40 ft.
Ibs.
Torque wrenches are available at most Sears
stores and through the catalog.
i1| I i
CAUTION:A LOOSEBLADECANBEDANGEROUS
ANDMAYMAKETHEENGINEHARDTOSTART.
III I I I
Use only aSears authorized replacement blade to
get the best cutting results.
NOTE: We do not recommend sharpening blade - but
if you do, be sure the blade is balanced.
TO SHARPEN BLADE:
The blade can be sharpened with a file or on a
grinding wheel. Do not attempt to sharpen while
on the lawn mower.
Care should be taken to keep the blade balanc-
ed. An unbalanced blade will cause excessive
vibration when running and eventual damage to
lawn mower or engine.
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, blade is nat balanced.
Sharpen the heavy end until the blade is
balanced.
10
MAINTENANCE
II]II llilllll
GRASSCATCHER
The 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 from
Sears. Give the Tawn mower model number when
ordering.
ENGINE
TO CHANGEOIL (WARMOIL DRAINSBETTER)
CAUTION:DISCONNECTSPARKPLUGWIREFROM
SPARKPLUGAND PLACEWIREWHEREITCANNOT
COMEIN CONTACTWITH SPARKPLUG.
i null iiii iii
Remove engine oil cap with dipstick; lay aside on
aclean surface.
Tip lawn mower on its side as shown in Fig. 11
and drain oil into suitable container. Rock lawn
mower back and forth to remove any oil trapped
inside of engine.
Wipe off any spil(ed oil on lawn mower and on
side of engine.
* Fill engine with SAE 30 or 10W30 oil. Fill only
to the "FULL" line on the dipstick. DO NOT
overfill.
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 if you
mow in very dusty, dirty conditions. Do not wash air
filter.
TO CHANGE AIR FILTER
"Remove the air filter cover by turning counter-
clockwise to the stop and pull away from collar
(See Fig. 12).
Remove filter from inside of co_,er (See Fig. 12).
* 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.
Pushin on cover and turn clockwise to tighten (See
Fig. 12).
I III
I llllll III I
FIG. ! i
SPARKPLUG
I1
I I
II III I I
FIG.
mllll
,LOCKW(SE
TO REMOVE
TURN CLOCKWISE
TO TIGHTEN
Turn lawn mower on its side with carburetor up.
* Clean the underside of your lawn mower by
scraping to remove build-up of grass and trash.
Clean your lawn mower and engine often to keep
trash from accumulating around engine. A clogg-
ed engine runs hotter and shortens engine life.
We DO NOT recommend using a garaen 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
shortening engine life.
uM i i
CAUTION:DISCONNECTSPARK PLUG WIRE
FROMSPARKPLUGAND PLACEWIRE WHERE
IT CANNOTCOMEIN CONTACTWITH SPARK
PLUG,
We recommend that you clean the underside of your
lawn mower after each use.
CLEANING
Change your spark plug each year to make your
engine start easier and run better. Set spark plug
gap at .030 inch.
EII IIIII
CARBURETOR
SERVICEANDADJUSTMENT
IIJL
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 Sears Service
Center for repair and adjustment.
ENGINESPEED
Your engine speed has been factory set. Do not at-
tempt to increase engine speed or it may result in per-
sonal injury. If youbelieve that the engine is runn-
ing too fast or too slow, take your lawn mower to
an authorized Sears Service Center for repair and
adjustment.
LOWER HANDLE
ADJUSTI
LEVER
FI6. 13
HANDLE
BRACKET
PIN
REARDEFLECTOR TO ADJUSTHANDLE
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.
*The handle on your lawn mower has three (3)
heights - adjust to the hei_h! that suits you.
To adjust the handle, pusn mon the adjusting
levers to clear the pins (See Fig. 13).
Raise or lower handle and position the adjusting
levers onto thepins.
Be surethat handle bracket pin is in the same lever
hole on both sides of the Iown mower
12
I II III I I
STORAGE
II I
Your lawn mower and engine should be prepared
for off-season storage as follows:
LAWN MOWER
Clean underside of lawn mower housing. (See
"Cleaning" in maintenance section of manual.)
Inspect and replaceisharpen blade, if required
(See "BladelBlade Adapter Care" in
maintenance section of manual).
Hose grass catcher off with water and let dry
before storing.
Lubricate as shown in Service Recommendation
chart on page 14 of manual.
HANDLE
III II I II II
I I III I
CONTROL BAR...,..,..._,_ "'_.
.,.,:,-
LOWER ,_" /'7
HANDLE KNOB.,..,,,._ [_y/ /_,';" if
-""_ ./" J_ FOLD FORWARD JF
\".V = L FOR STORAGE
_\\ r?l.,,',' .- I_
.... .r?- -_-": -"=-':: _'_v'J|: !"_ _" ,.'_/_ FOLD BACKWARD
.-:,'\
_-*_. ".... ._ _ "'_' ._',' MOWING
[_l"'_" r-:_'.-;. -. .:'- ......... .,:." POSITION
You can fold your lawn mower handle for storage
as shown in Fig. 14.
To fold, push in on the adjusting levers to clear
the pins, then move handle forward (See Fig. 15).
IMPORTANT: WHEN FOLDING THE HANDLE
FOR STORAGE OR TRANSPORTA-
TION, BE SURE TO FOLD THE HAN-
DLEAS SHOWN IN FIG. 14. IF YOU
FOLD THE UPPER HANDLE SEC-
TION THE WRONG WAY, YOU
MAY DAMAGE THE CONTROL
CABLE.
ENGINE
* Change oil (See "To Change Oil" in maintenance
sedion of manual).
Drain Fuel and Run Engine until fuel system is
emnpty..
IMPORTANT" IT IS IMPORTANT TO PREVENT
GUM DEPOSITS FROM FORMING
IN ESSENTIAL FUEL SYSTEM PARTS
SUCH AS THE CARBURETOR, FUEL
FILTER, FUEL HOSE, OR TANK DUR-
ING STORAGE. ALSO, EXPER-
IENCE iNDICATES THAT ALCOHOL
BLENDED FUELS (CALLED GASO-
HaL OR USING ETHANOL OR
METHANOL) CAN ATTRACT MOIS-
TURE WHICH LEADS TO SEPARA-
TION AND FORMATION OF ACIDS
DURING STORAGE. ACIDIC GAS
CAN DAMAGE THE FUEL SYSTEM
OF AN ENGINE WHILE IN
STORAGE.
FIG. 14
"_...,/LOWER HANDLE
HANDLE
IBRAC ,
• _ PIN
,/A JUST N
Lo o.
I I III
FIG. 15
II II
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 can cause
problems.
Do not store your lawn mower under any plastic
cover. Plastic cannot breathe which allows con-
densation to form and can cause your lawn
mower to rust.
When setting up your handle from the storage
position, the-lower handle will require manually
locking into the mowing position.
13
SERVICERECOMMENDATIONS
SERVICERECORD
Fifl in dates as you complete regular
service
Blade Checked
, ,m
Blade Replaced (Sharpened)
Engine Oil Change
Engine Oil Check
Air Cleaner
Spark Plug Replaced
Lubricate Lawn Mower
Cleaning
Grass Catcher (if applicab!e)
Muffler
First
2
Hours
V,
SCHEDULE
I[
Every Every
10 25
Hours Hours
i11'
ii'
v"
v"
i
SERVICEDATES
Every
Use
v"
v"
v"
I II
-CHECK
LUBRICATIONCHART
SAE 30 MOTOR OIL (lOW 30)
Q SPRAY LUBRICANT
BRAKE SPRING BRACKET
HANDLE BRACKET
MOUNTING PIN
"HEEL ADJUSTER
14
ENGINE OIL
........................... I II II II
TROUBLESHOOTINGPOINTS
I
PROBLEM
DOESHOT
START
LOSSOf
POWER
POORCUT-
UNEVEN
iii ii i
TOOMUCH
VIBRATION
i
STARTERROPE
HARDTOPULL
ii i
CATCHERNOT
FILLINGCOMPLETELY
(IF APPLICABLE)
HARDTOPUSll
CAUSE
1. Dirty air filter,
2. Out of gasoline
3. Stale gasoline.
4. Spark plug wire is disconnected
from the spark plug.
5. Bed spark plu_!.
6. Water in gasoline.
7. Loose blade or broken blade
adapter.
8. Operator presence control bar in re-
leased position.
9. Operator presence control bar defec-
tive.
I. Rear of lawn mower housing/blade
dragging in heavy grass.
2. Cutting too muchgrass.
3. Dirty air filter.
4. Build-up of grass, leaves, and
trash under lawn mower housirlg.
5. Walking speed too fast.
6. Too muchoil in engine.
1. Worn, bent or loose blade.
2• Wheel heightsuneven.
3. Low engine speed.
4. Build-up of grass, leaves and trash
under lawn mower housing.
1. Worn or bent blade.
2. Loose blade.
3• Bentengine crankshaft.
1. Flywheel brake is on when operator
presencecontrol bar is released.
2. Bentengine crankshaft.
3. Blade adapter sheared.
4. Blade dragging in grass.
1. Cutting height too low.
Lift on blade worn off.
3. Catcher bag dirty, poor air
venting.
4. Low engine speed•
iiii uii
1. High grass or cutting height too low.
Rear of lawn mower housing/blade
dragging in heavy grass.
3. Grass catcher too full.
4. Handle height position not right for you.
CORRECTION
1. Replace air filter
2. Fil| gasoline tank•
3. Drain gas tank and refill wffh fresh
gasoline.
4. Connectwire to spark plug.
5• Replace spark plug.
6• Drain tank and refill with fresh, clean
gasoline.
7. Tighten blade bolt andlor replace
blade adapter.
8. Depress operator presence control bar.
9. Replace operator presence control bar.
1. Raise rear of lawn mower housingone (1)
setting higher than front.
2. Set in HIGHER CUT position.
3. Clean or replace air filter.
4. Disconnectspark plug wire and
clean underside of lawn mower housing.
,5. Cut at slower walking speed.
6• Check engine oil level.
1. Replace blade. Tighten blade bah.
2. Set all wheels at same height.
3. Set engine speed control in FAST or
HIGH position.
4. Disconnectspark plug wire & dean
underside of lawn mower housing.
1. Replace blade.
2. Tighten blade bolt.
3. Contact Sears Service Deportment.
1. Depress operatorpresence control
bar to upper handle before pulling
on starter rope.
2. Contact Sears Service Department.
3. Replace blade adapter•
4. Get over tow grass andlor hard surface
to start engine.
1. Raise cutting height.
. Replace blade.
Clean/replace catcher bag.
(If optional grass catcher is being
used).
4. Set engine speed control in FAST or
HIGH position.
I. Raise cutting height,
2. Raise rear of lawn mower housingone (1)
setting higher than front.
3. Empty grass catcher•
4. Adjust handle height to suit.
15
CRAFTSMAN 20"" ROTARY LAWN MOWER MODEL NO. 91 ;' 383340 REPAIR PARTS
Rev. 1
..t,
O)
\
12
21 29
t8
78
67
68
65
4B
6S
67 t
56
7!
64
63
CRAFTSMAN 20" ROTARY LAWN MOWER MODEL NO. 917.383340 REPAIR PARTS
_k
"4
Rev. 1
Ref,
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
Part
No.
ii mjj rll I
750582
750584
751109
85692
STD541425
750820
86229
751625
751613
STD522515
85723
87692
STD541425
750627
750785
58714
85827
STD622512
750587
800445
STD541431
83923
800443
800444
STD541431
800447
800469
700279
81283
STD522506
54583
700274
88664
750621
750619
750620
750625
750624
851453
750623
103875X
851235
Part Name
Upper Handle
Control Bar
Deluxe Zone Control
Machine Screw 1/4-20 x 2 1/8
Locknut 1/4-20
Rope Guide
Locknut 1/4-20
Spacer
Spacer
Hex Head Bolt 114-20 x 1 1/2
Washer
Handle Knob
Locknut 114-20
Instruction Decal (Engine)
Lower Handle
Handle Bolt 5/16-18 x 1 3/4
Cable Clip
Hex Head Bolt 1/4-20 x 1 1/4
Actuator Stud
Handle Adjusting Bracket
Locknut 5/16-18
Locknut 3118-16
Handle Link (Left)
Handle Link (Right)
Hex Locknut 5116-18
Washer
Spacer
Retainer Clip
Self Tapping Screw 10-24 x 3/8
Machine Screw1/4-20 x 5/8
Hex Tapping Screw 1/4-20 x 1/2
Back Plate
Skirt Rod
Door Handle
Spring (Right)
Spring (Left)
Rear Door
Hinge Rod
Wiper Strip
Hinge Bracket
Pan Head Screw 10-16 x 1/2
Seal Strip
Ref.
No.
m,,,,,,,
43
44
45
46
4'7
48
49
5(;
5!
52
53
54
55
56
57
58
59
60
61
62
63
64"
65
66
67
68
69
7O
71
72
73
74
75
76
77
78
79
80
81
Part
No.
750483
88554
86344
700273
700062
750735
750811
750812
55187
STD541431
STD533107
STD541437
61537
88641
88642
84920
88348
87887
850863
77865
62335
84921
750507
52160
85179
77400
48217
85463
750509
850977
850972
850263
851074
851084
700276
750617
750767
850998
750701
750588
Part Name.
Side Baffle
Discharge Baffle
He)( Head Screw 10-24 x 1/2
Rear Baffle
Rear Deflector
Shoulder Bolt
Handle Bracket Assembly (Left)
Handle Bracket Assembly (Right)
Thread Cutting Screw 5/16-18 x 3/4
Locknut 5/16-18
Carriage Bolt 5/16-18 x 5/8
Locknut 318-16
Washer
Wheel Adjusting Bracket (L.R.,R.F.)
Wheel Adjusting Bracket (R.R.,L.F.)
Spacer
Washer
Axle Arm Assembly
Selector Spring
Selector Knob
Belleville Washer
Shoulder Bolt 3/8-16
Wheel & Tire Assembly 8.0 x 1 3/4
Washer
Retainer Clip
Hubcap
Lawn Mower Housing (Incl. Ref.
#32,43,44,46,70 & 77)
Danger Decal
Housing Decal
Blade Adapter
20" Blade
Helical Lockwasher 3/8
Hardened Washer
Hex Head Screw 3/8-24 x 1 3/8
Grd. 8
Front Baffle
Catcher Frame
Grass Bag
Hex Head Thread Rolling Screw
3/8x 16
Engine -Craftsman (Source 143)
Model No. 143.404142 (See
Pgs.18-21)
Owner's Manual
CRAFTSMAN4"CYCLEENGINE MODEL:143.404142
MODELandSERIALt
NUMBERSHERE
110
135
130
120
370A\
126
119
125
42
101
2O4
292
"172
41
43
182185 C
/
178
241
f
238
207
250
I I II III
_t301
14
-7
193
18
CRAFTSMAN4-CYCLEENGINE MODEL:143.404142
ReL Part
No. No.
1 35613
6 33734
7 34214A
8
9*33735
3O2O0
12A 34605
12B 33886
14 28277
15 31_89
16 31383A
17 31335
18 650548
19 31361
2O 326O0
30 34477B
32 32323
4O 35544
40 35545
4O 35546
41 35541
41 35542
41 35543
42 35547
35549
32875
46 32810A
48 27241
5O 33553
52 29914
69 *35261
7O 35810
72 3O572
73 °28833
75 27897
80 30574
81 35479
82 3O591
83 30568A
84 29193
86 660488
89 611004
90 611112
92 660815
93 660816
100 34443A
101 610118
103 650814
110 34961
119 °33015A
120 34342
126 20313C
129 29315(:
120 20314B
120 29315C
130 5O21A
Part Name
CylinderAssy. (Incl. Nee. 2 _20)
Pin, Dowel
Element, Breather
BreatherAasy. (Incl, Nee. 6, 8, 9, 12A
8. 12B)
Gasket,Breather
Screw, Flexwasher hd.self-tap Seres,
10-24 x 9/16
Bbow, Breathertube
Tube, Breather
Washer, Rat
Rod, Governor(Incl. No. 14)
Lever, Governor
Clamp, Govemorlever
SCrew, Hex washer hd., 8-32 x 5/16
Spdng, Extension
Seal, Oil
CrankshaftAasy.
Washer, Thrust
Piston, Pin 8- Ring Aasy. (Std.}
(Incl. Nee. 41, 42 8. 43)
Piston, Pin _Ring Assy. (.010 over-
size) (Incl. Nee. 41, 42 Et43)
Piston, Pin 8. Ring Aasy. (.020 over-
size) (IncL Nos. 41, 42 8. 43)
Piston_PinAss,/. {Std.) (Incl. No.43)
Piston Et Pin Assy. (.010 oversize)
(Incl. No. 43)
Piston G Pin Assy. (.020 oversize)
(Incl. No. 43}
RingSet, Piston (Std.)
RingSet, Piston (.010 oversize)
RingSet, Piston (.020 oversize)
Ring, Piston pinretaining
Rod Aasy., Connecting(Incl. No. 46)
Bolt, Connectingrod
Valve, Lifter
Camshaft (Mech. Compression
Release)
PumpAasy., Oil
Gasket, Mounting flange
Flange,Mounting (Incl. Nee. 72,73, 75
80)
Plug, Oil drain (Incl. No. 73}
Gasket, Oil plug {Not required with
plasticoil plug)
Seal, Oil
Shaft, Governor
Washer, Rat
GearAasy., Governor(Incl. No. 81)
Spool, Governor
Ring, Retaining
Screw, Hex hdo Seres, 1/4-20 x 1-1/4
Key,Rywhe_
Flywheel
Washer, Beflevills
Nut, Rywheel
Solid State As_/.
(:over, Spark plug
Screw, Torx hex washer hd. Serns,
10-24 x 1
Wire, Ground
Gasket,Cylinderhead
Head, Cylinder
Valve, Exhaust(Std.} (Incl. No. 161)
Valve, Exhaust (1/32" ovendze) (Incl.
No. 151)
Valve, intake (Std.) (Incl. No. 151)
Valve, Intake (1/32" oversize)
(Incl. No. 151)
Screw, Hex flangehd., 6/16-18 x 1-1/2
Ref. Part
No. No.
135 35395
150 31672
151 31673
166 35827
169 "2"/234A
172 32756
174 65O128
178 28752
182 6201
184 *28756
185 31394A
186 34337
189 650839
190 34968
191 35039
192 34966
193 34965
194 323O9
195 610973
2O0 35727
2O2 338O2
203 31342
204 65O549
2O5 650777
207 34336
209 3O2OO
215 35511
223 65O451
224 "34690A
238 *34338
239 65O932
241• 35797
245 35O66
260 35O65
260 35826
261 30200
262 650831
263 35821
275 34613
277 65O795
285 35O0O
287 650884
29O 34357
292 2646O
3O0 35586
301 35355
305 35819
3O6 34265
307 35499
309 65O662
Paxt Name
Spark Plug, Resistor(Champion RJ-
19LM or equivalent)
Spring, Valve
Cap, Lower valvespring
Shroud, Englne
Gasket,Valvespring box
Cover,Valve springbox
Screw, Hex hd. Same, 10-24x 1/2
Nut 8- Lockwasher,1/4-28
Screw, Hex hd., 1/4-28 x 7/8
Gasket, Carburetor
Pipe, Intake[Incl. No. 224)
Link, Governorspring
Screw, Hex washer hd. Powedok,
114-20x 318
Lever, Brake
Bracket, S.E. Brake
Link, Control
Spring, Extension
Ring, Retaining
TerminalAssy.
Bracket Assy., Control(Incl. Nos. 202
thru 205)
Spring, Compression
Spring, Compression
Screw, Fit. hd., 5-40 x 7/16
Screw, Fil. hd., 6-32 x 21/32
Link, Throttle
Screw, Hex washerhd. self-tapSems,
10-24 x 9/16
Knob, Control
Screw, Hsx hd. Seres, 1/4-20 x1
Gasket, Intake pipe
Gasket, Air cleaner
Screw, Hex washer hd. shoulder,
10-32x 43164-
Collar, Air cleaner
Filter,Air cleaner (Paper)
Cover,Air cleaner
Housing, Blower
Screw, Hex washerhd. self-tapSeres,
10-24x 9/16
Screw, Hex washer hd. Powedok
thread, 1/4-26 x 15/32
Grill, Shroud
Muffler As._/.
Screw, Hex hd., 114-20 x 2-1/4
Hub, Starter
Screw, Hex washer hd., 8-32 x 1!2
Line, Fuel
Clamp, Fuel line
Tank Aasy, (Incl. Nos. 292 8. 301)
Cap, Fuel
Tube, Oil fill
Gasket, Fill tube
"O" Ring
Screw, Hex washer hd. shakeproof,
10-32 x I/2
*Indicates PartsIncludedin
Gasket Set, Ref. No. 400.
19
CRAFTSMAN4-CYCLEENGINE MODEL:143.404142
Ref. Part
No. No.
310 35822
313 34080
357 34985
370 35847
370A 35167
370B 35841
380 6325_9
Part Name
Dipstick, Oil fill
Spacer, Flywheel key
Rstainer, Starter rope
Decal, Instruction
Decal, Throttle
Deca!, Name
Carburetor (Incl. No. 184)
Ref.
No.
380
4OO
Part
No.
59O637
33235D
Part Name
Starter, Rewind
Gasket Set (Incl. itemsmarked *)
RPM Setting:
Low Speed: 2500 High Speed: 3000
*Indicates PartsIncluded in
GasketSet, Ref. No. 400.
20
CARBURETOR NO. 632569
26
3
/
/
/
I
t
I
_-_------- 21
|
_- 22,
Ref. Part
No. No.
632569
1 631615
3- 631616
4 650506
5631767
6631971
7631184
9 632047
11 631027
12 631O21
13 631022
14 632019
15 631024
16 631700
21 631334
22 632568
25 631028
26 632527
Part Name
Carburetor
Shaft Et Lever Assy., Throttle
Shutter, Throttle
Screw, Throttle shutter
Spring, Throttle return
Sea!, Dust
Washer, Flat
Primer Assy.
Plug, Welch
Inlet Needle, Seat _Clip Assy.
(Incl. No. 13)
C_ip, Intet needle
Float, Carburetor
Shaft, Float
Bowl, Float
Gasket, Bowr-to-body
Nut, Float Bowl
Gasket, Bowl-to-body
Fitting, Fuel inlet
I
REWIND STARTER NO.
12 _
Ref. Part
No. No. Part Name
590637 Starter, Rewind
1590599A Pin, Spring (lncL No. 4)
2 590600
3 590615
4 590601
5 59O598
6 590616
7 590617
8 590618
9 590619
10 59O62O
11 590638
12 590535
13 59O452
Washer
Retainer
Washer
Spring, Brake
Dog, Starter
Spring, Dog
Pulley
Spring, Rewind
Cover, Spring
HousingAssy., Starter
Rope, Starter (Length98" _9/64"
die.)
Handle, Starter
21
NOTES
22
NOTES
23
OWNER'S
MANUAL
MODELNO.
917.383340
HOWTOORDER
REPAIRPARTS
750588 Rev. I 02/15/90
I
CRRFTSMRN
4.0 HORSEPOWER
20" REARBAGGER
ROTARYLAWNMOWER
Each Lawn Mower has its own model number. Each
engine has its own model number.
The modelnvmberfor your lawn mowerwill be found on
a decal attached to the rear of the lawn mower housing.
The model number for the engine will be found on the
Blower Housingof the engineadjacent to the spark plug.
All parts listed herein may be ordered through Sears,
Roebuckand Co. ServiceCentersand mostRetail Stores.
WHENORDERINGREPAIRPARTS,ALWAYSGIVETHEFOLLOWING
INFORMA11ON:
* PRODUCT- "ROTARYLAWNMOWER"
* MODELNUMBER- 917.383340
* ENGINE- CRAFTSMAN
MODELNO. 143.404142
*PARTNUMBER
* PARTDESCRIPTION
Your Sears merchandisehas added value whenyou con-
siderthat Sears has serviceunitsnationwide staffed with
Sears trained technicions...professional technicians
specificallytrained on Sears products,having the parts,
toolsand the equipmentto insurethat we meetour pledge
to you, we servicewhat we sell.
Ul ih
Printedin U.S.A.
II
IIIIIIII

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