Craftsman 917.389620 User manual

Owner's Manual
6.0 HORSEPOWER
21 "MULTI-CUT
ROTARY LAWN MOWER
Model No.
917.389620
• Safety
• Assembly
• Operation
• Maintenance
- Espafiol
•Repair Parts
NOTE: Engines which are certified to comply with CalifomJa and U.S. EPA emission regulations
for SORE (Small Off Road Equipment, are certified to operate on regular unleaded gasoline, and
include the following emission centrol systems: Engine Modification (EM), and Three-way
Catalyst (TWC) (if so equipped).
AVISO: Los motores homek>gados para cumplir con le reglamentaci6n sobre emisiones de
California y de la Agencle de Proteccl6n Ambiental estadeunidence (EPA) para equipos
pequefms no circulentes (SORE) funcionan con gasollea normal sin plomo, e incluyen los
siguientss sistemas de control de emisiones: modificaci6n del motor (EM) y catalizador de triple
acci6n (TWC) (en caso de tenerlo).
The D.O.M. decal includes engine life specifications for the emissions-related useful life period of
_our engine. This period relates to the emission compliance life as certified by EPA/CARB. To
find the/ire pedod specification for your engine, please match one of the following letters with the
letter printed on your D.O.M. decal: (C) 125 hours, (B) 250 hours, (A) 500 hours.
La calcemanfa D.O.M. induye espechlcaciones sobre la dura(;ibn del motor para el pedodo de
vida dtil de su motor relaccionade con emisiones. Este perlodo se relaciona con la duracibn en
conformidad con las emislenes segOn Io certificado por EPNCARB. Para hallar la especificacibn
del perfodo de vide de su motor, mire cudl de las siguientes letras viene impresa en su
celcomanfa D.O.M.: (C) 125 horas, (B) 250 horas, (A) 500 horas.
CAUTION:
Read and follow all
Safety Rules and Instructions
before operating this equipment
Seam, Roebuck and Co., Hoffman Estates, IL 60179
Visit our Craftsman website" www.sears,com/craftsman

Warranty............................................... 2
Safety Rules.........................................2
Assembly..............................................5
Operation.............................................. 6
MaintenanceSchedule...................... 10
Maintenance....................................... 10
ProductSpecifications........................ 11
Sewice and Adjustments.................... 13
Storage ...............................................14
Troubleshooting.................................16
Repair Parts........................................34
PartsOrdering..................... BackCover
LIMITED TWO YEAR WARRANTY ON CRAFTSMAN POWER MOWER
For two years from date of pumhase, 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 workman-
ship.
IfthisCraftsmanLawnMoweris usedfor commercialor rentalpurposes,thiswarranty
appliesfor only90 daysfrom thedate ofpurchase.
This Warranty does not cover:
• Expendable items which become worn during normal use, such as rotary mower
blades, blade adapters, belts, air cleaners and spark plug.
•Repairs necessary because of operator abuse or negligence, including bent
crankshafts and the failure to maintain the equipment according to the instructions
contained in the owner's manual.
Warranty service is available by retuming 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.
ThisWarrantygivesyouspecificlegalrights,and you may alsohave otherdghtswhich
varyfrom statetostate.
Seam, Roebuckand Co., 1:)/817WA, HoffmanEstates,Illinois60179
IMPORTANT: Thiscuttingmachineiscapableofamputatinghandsandfeet and
throwing objects. Failure to observe the following safety instructions could result in
serious injury or death.
I.GENERAL OPERATION *
• Read, understand, and follow all
instructions on the machine and in the •
manual(s) before starting. Be thor-
oughly familiar with the controls and the
proper use of the machine before .
starting.
• Do not put hands or feet near or under
rotating parts, Keep clear of the
discharge opening at all times. •
•Only allow responsible individuals, who
are familiar with the instructions, to
operate the machine.
•Clear the area of objects such as rocks, •
toys, wire, bones, sticks, etc., which
could be picked up and thrown by the
blade. 2
Be sure the area is clear of other
people before mowing. Stop machine if
anyone enters the area.
Do not operate the mower when
barefoot or wearing open sandals.
Always wear substantla"I foot wear.
Do not pull mower backwards unless
absolutely necessary. Always look
down and behind before and while
moving backwards.
Do not operate the mower without
proper guards, plates, grass catcher or
other safety protective devices in
,_lace.
ee manufacturer's instructions for
proper operation and installation of
accessories. Only use accessories
approved by the manufacturer.

• Stoptheblade(s)whencmseinggravel •
ddvas, walks, or roads.
• Stop the engine (motor) whenever you
leave the equipment, before cleaning •
the mower or unclogging the chute.
• Shut the engine (motor) off and wait •
until the blade comes to complete stop
before removing grass catcher.
= Mow only in d_ight or good artificial
light.
•Do not operate the machine while
under the influence of alcohol or drugs.
•Never operate machine in wet grass.
Always be sure of your footing: keep a
firm hold on the handle and walk; never
run.
•Disengage the self-propelled mecha-
nism or drive clutch on mowers so
equipped before starling the engine
(motor).
•If the equipment should stad to vibrate
abnormally, stop the engine (motor)
and check immediately for the cause.
Vibration is generally a warning of
trouble.
•Always wear safety goggles or safety
glaSSes with side shields when
operating mower.
II, SLOPE OPERATION
Slopes are a major factor related to slip
and fall accidents which can result in
severe injury. All slopes require extra
caution. If you feel uneasy on aslope, do
r_otmow iL
DO:
•Mow across the face of slopes: never
up and down. Exercise extreme caution
when changing direction on slopes.
•Remove obstacles such as rocks, tree
limbs, etc.
•Watch for holes, ruts, or bumps. Tall
grass can hide obstacles.
DO NOT:
•Do not trim near drep-offs, ditches or
embankments. The operator could lose
footing or balance.
•Do not tdm excessively steep slopes.
• Do not mow on wet grass. Reduced
footing could cause slipping.
III. CHILDREN
Tragic accidents can occur if the operator
is not sled to the presence ot children.
Children are often attracted to the
machine and the mowing activity. Never
assume that children will remain where
you last saw them.
Keep children out of the trimming area
and under the watchful care of another
responsible adult.
Be alert and tum machine off if children
enter the area.
Before and while walking backwards,
It>ok behind and down for small
children.
•Never allow children to operate the
machine,
•Use extra care when approaching blind
comerS, shrubs, trees, or other objects
that may obscure vision.
IV. SERVICE
• Usa extra care in handling gasoline
and other fuels. They are flammable
and vapors are explosive.
-Use only an approved container.
- Never remove gas cap or add fuel
with the engine running. Allow
engine to cool before refueling. Do
not smoke.
- Never refuel the machine indoors.
-Never store the machine or itJel
container inside where there is an
open flame, such as a water heater.
•Never run a machine inside a closed
area.
•Never =make adjustments or repairs with
the engine (motor) running. Disconnect
the spark plug wire, and keep the wire
away trom the plug to prevent acciden-
tal starting.
•Keep nuts and bolts, especially blade
attachment botts, tight and keep
equipment in good condition.
•Never tamper with safety devices.
Check their proper operation regularly.
•Keep machine free of grass, leaves, or
other debds build-up. Clean 0il or fuel
spillage. Allow machine to c001 before
storing.
•Stop and inspect the equipment if you
strike an object. Repair, if necessary,
before restading.
* Never attempt to make wheel height
adjustments while the engine (motor) is
running.
• Grass catcher components are subiect
to wear, damage, and deterioration,
which could expose moving parts or
allow objects to be thrown. Frequently
check components and replace with
manufacturer's recommended parts,
when necessary,
•Mower blades are sharp and can cut.
Wrap the blade(s) or wear gloves, and
use extra caution when servicing them.
•Do not change the engine governor
3 setting or ovarspead the engine.

_,Look for this symbol to point out
important safety precautions. It means
CAUTIONIH BECOMEALERT!H YOUR
SAFETY IS INVOLVED.
ACAUTION: In order to prevent
accidental starting when setting up,
transporting, adjusting or making repairs,
always disconnect spark plug wire and
place wire where it cannot contact spark
plug.
A CAUTION: Muffler and other engine
parts become extremely hot during
operation and remain hot after engine
has stopped. To avoid severe burns on
contact, stay away from these areas.
AIWARNING: Engine exhaust, some of its
constituents, and certain vehicle
components contain or emit chemicals
known to the State of California to cause
cancer and birth defects or other
reproductive harm.
AWARNING: Battery posts, terminals end
related accessories contain lead and lead
compounds, chemicals known to the State
of Califomia to cause cancer and birth
defects or other reproductive harm. Wash
hands after handling.
These accessories were available when this lawn mower was produced. They ere not
shipped with your mower. 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.
LAWN MOWER PERFORMANCE
J
CLIPPING DEFLECTOR
FOR HEAH DISCHARGE LAWN MOWERS
GRASS CATCHERS
FOR
REAR DISCHARGE
LAWN MOWERS
MULCHER _TS
GRASS CATCHERS
FOR
SIDE DISCHARGE
LAWN MOWERS
STABILIZER
GAS CANS
LAWN MOWER MAINTENANCE
MUFFLERS
BELTS BLADES
AIR FILTERS
BLADE ADAPTERS WHEELS
SPARK PLUGS
ENGINE OIL
4

Read theseinstructionsand this manualin 3. Remove any packingmaterialfrom
itsentiretybeforeyou attempttoassemble
or operateyournewlawn mower.
IMPORTANT: Thislawnmowerisshipped
WITHOUT OIL ORGASOLINE inthe
engine.
Yournewlawn mowerhasbeen as-
sembledat thefactorywiththeexception controlbar
ofthosepartsleftunassembledfor Upperhandle
shippingpurposes.Allpartssuchas nuts,
washers,bolts,etc., necessaryto complete Liftup
the assemblyhave been placedinthe
partsbag.Toensuresafe and proper
operationofyourlawnmower,all parts
_nd hardwareyou assemblemustbe
tightenedsecurely.Usethecorrecttoolsas
necessaryto ensurepropertightness.
TO REMOVE LAWN MOWER FROM
CARTON
1. Removelooseparts includedwith
mower.
2. Cutdowntwoend comersof carton
and layend paneldownflat. 3-Position
3. Removeall packingmaterialsexcept handleadjustment
paddingbetweenupper and lower bracket
handleend paddingholdingoperator
presencecontrolbar to upperhandle.
4. Rolllawn moweroutof cartonand
checkcartonthorouglyfor additional
looseparts.
HOWTO SET UPYOUR LAWN
MOWER
TO UNFOLD HANDLE
IMPORTANT: Unfold handle carefully so
as not to pinch or damage control cables.
1. Raise lower handle section to operat-
ing position and squeeze the bottom
ends of lower handle towards each
other until the pin in handle can be
inserted into one of the three height
adjustment holes,
2. Remove protective padding, raise
upper handle section into place on
lower handle and tighten both handle
knobs.
around control bar.
Your handles may be adjusted for your
mowing comfort. Refer to Service and
Adjustments section of this manual.
Mowing
Lower handle
Handle pin
/
\
TO INSTALL ATTACHMENTS
Your lawn mower was shipped ready to
be used as a mulcher. To convert to
bagging or discharging, see 'To convert
mower" in the OPERATION section of this
manual.

KNOWYOURLAWNMOWER
READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR
LAWN MOWER. Compare the illustrations with your lawn mower to familiarize yourself
with the location of various controls and adjustments. Save this manual for future
reference.
These symbols may appear on your lawn mower or In literature supplied with the
product. Learn and understand their meaning.
CAUTION ENGINE ENGINE FAST SLOW CHOKE FUEL OIL DANGER, KEEP HANDS
OR WARNING ON OFF AND FEET AWAY
•Operator presence control
bar
Handle knob
Grass Gasoline filler cap
Engineoilcap
with.dipstick
(on each wheel)
Mulcher door
IMPORTANT: This lawn mower is shipped
WITHOUT OIL OR GASOLINE in the
engine.
Lawn mowerhousincJ
MEETS CPSC SAFETY REQUIREMENTS
Sears rotary walk-behind power lawn mowers conform to the safety standards of the
American National Standards Institute and the U.S. Consumer Product Safety Commis*
sion. The blade turns when the engine is running. i
Operator Presence Control Bar- must Primer - pumps additional fuel from the
be held down to the handle to start the carburetor to the cylinder for use when
engine. Release to stop the engine, starting a cold engine.
Starter Handle - used for starting the
engine•

The operationofany lawn
mowercan resultin
foreignobjectsthrowninto
the eyes,whichcan result
in severeeye damage.
Alwayswear safetyglassesor eye
shieldswhileoperatingyour lawn mower
or performinganyadjustmentsor repairs.
We recommenda widevisionsafety
maskover spectaclesor standardsafety
glasses, '
HOWTO USEYOUR LAWN MOWER
ENGINE SPEED
The engine speed was set at the factory
for optimum performance. Speed is not
adjustable.
ENGINE ZONE CONTROL
a_nCAUTION: Federal regulations require
engine control to be installed on this
lawn mower in order to minimize the risk
of blade contact injury. Do not under any
cimumstances attempt to defeat the
function of the operator control. The blade
turns when the engine is running.
•Your lawn mower is equipped with an
operator presence control bar which
requires the operator to be positioned
behind the lawn mower handle to start
and operate the lawn mower.
TO ADJUST CUTTING HEIGHT
Raise wheels for low cut and lower
wheels for high cut, adjust cutting height
to suit your requirements. Medium
position is best for most lawns.
• To change cutting height, squeeze
adjuster lever toward wheel. Move
wheel up or down to suit your require-
ments. Be sure all wheels are in the
same setting.
NOTE: Adjuster is propedy positioned
when plate tab inserts into hole in lever.
Also, 9*position adjusters (if so equipped)
allow lever to be positioned between the
p_atetabs.
LowerWheelsfor HighCut
Pla_
RaiseWheels forLow Cut
TO CONVERT MOWER
Your lawn mower was shipped ready to
be used as a mulcher. To convert to
bagging or discharging:
REAR BAGGING
•Lift rear door of the lawn mower and
place the grass catcher frame hooks
onto the door pivot pins.
•To convert to mulching or discharging
operation, remove grass catcher and
close rear door.
Pivotpins "_, _ _
SIDE DISCHARGING
•Rear door must be closed.
•Open mulcher door and install dis-
ct'iarge deflector under guard as
shown.
•Mower is now ready for discharging
operation.
•To convert to mulching or bagging
operation, discharge deflector must be
removed and mulcher door must be
closed.
SIMPLE STEPS TO REMEMBER WHEN
CONVERTING YOUR LAWN MOWER
FOR MULCHING-
1. Rear door closed.
2. Mulcher door closed.
FOR REAR BAGGING -
1. Grass catcher installed.
2. Mulcher door closed.
FOR SIDE DISCHARGING -
1. Rear door closed.
2. Side discharge deflector installed.
_I_CAUTION: Do not run your lawn
mower without rear door closed or
approved grass catcher in place.
Never attempt to operate the lawn mower
with the rear door removed or propped
open.
Mulcher
door

Open
Mulcher Door
Discharge
deflector
BEFORE STARTING ENGINE
ADD OIL
Yourlawnrnowerisshippedwithoutoilin
theengine.Engineholds 20 oz.of oil.
Fortypeand gradeofoilto use,see
"ENGINE" in Maintenancesectionofthis
manual.
1. Be sure lawnmowerisleveland area
aroundoilfillisclean.
2. Removeengineoilcap and filltothe
fulllineon the dipstick.Pouroilslowly.
Do notoverfill.
NOTE: Allowoilto settledownintoengine
for accuratereading.To read properlevel,
tightenengineoilcap, then removeitto
readthe dipstick.
3. Reinstallengine oilcap and tighten.
• Check oillevel beforeeachuse. Add
oilifneeded. Fillto fulllineondipstick.
•Changetheoilafterevery25 hoursof
operationor each season. You may
need tochangethe oilmoreoften
underdusty,dirtyconditions.
ADD GASOLINE
•Fillfueltank. Usefresh,clean,regular
unleadedgasolinewith a minimumof
87 octane. Do not mix oilwithgaso-
line. Purchasefuel in quantitiesthat
can be usedwithin30 daysto assure
fuel freshness.
AWARNING: Experience indicates that
alcohol blended fuels (called gasohol or
using ethanol or methanol) can attract
moisture which leads to separation and
formation of acids dudng storage. Acidic
gas can damage the fuel system of an
engine while in storage. To avoid engine
problems, the fuel system should be
emptied before storage of 30 days or
longer. Drain the gas tank, start the
engine and let it run until the fuel lines
and carburetor are empty. Use fresh fuel
next season. See Storage Instructions for
additional information. Never use engine
or carburetor cleaner products in the fuel
tank or permanent damage may occur.
CAUTION: Fill to bottom of gas tank
filler neck. Do not overfill. Wipe off any
spilled oil or fuel. Do not store, spill or
use gasoline near an open flame.
Engineoil cap
TO START ENGINE
NOTE: Due to protective coatings on the
engine, a small amount of smoke may be
present during the initial use of the
product and should be considered
normal.
1, To start a cold engine, push primer
three (3) times before trying to start.
Use a firm push, This step is not
usually necessary when starting an
engine which has already run for a
few minutes.
2. Hold operator presence control bar
down to the handle and pull starter
handle quickly. Do not allow starter
rope to snap back.
TO STOP ENGINE
•To stop engine, release operator
presence control bar.
NOTE: In cooler weether it may be
necessary to repeat priming steps. In
warmer weather over priming may cause
flooding and engine will not start. If you
do flood engine, wait a few minutes
before attempting to start and do not
repeat priming steps.
8

MOWING TIPS
• Under certain conditions, such as very
tall grass, it may be necessary to raise
the height of cut to reduce pushing
effort and to keep from ovedoading the
engine and leaving clumps of grass
clippings. It may also be necessary to
reduce ground speed and/or run the
lawn mower over the area a second
time.
•For extremely heavy cutting, reduce the
width of cut by ovedapping previously
cut path and mow slowly.
•For better grass bagging and most
cutting conditions, the engine speed
should be set in the fast position.
•Pores in cloth grass catchers can
become filled with dirt and dust with use
and catchers will collect less grass. To
prevent this, regularly hose catcher off
with water and let dry before using.
•Keep top of engine around starter clear
and clean of grass clippings and chaff.
This will help engine air flow and
extend engine life,
MULCHING MOWINGTIPS
IMPORTANT: Forbest performance,
keep mowerhousingfreeof built-up
grassandtrash.Clean UNDERSIDE OF
MOWER HOUSING aftereachuse.See
"Cleaning"in MAINTENANCE sectionof
this manual.
•The specialmulchingbladewillrecut
the grassclippingsmanytimesand
reducetheminsize sothatas theyfall
ontothe lawntheywilldisperseintothe
grassand notbe noticed.Also,the
mulchedgrasswill biodegradequickly
to providenutrientsforthe lawn.
Always mulchwithyourhighestengine
(blade)speed as this willprovidethe
bestrecuttingactionofthe blades.
•Avoidcuttingyourlawnwhen itiswet.
Wet grasstendsto formclumpsand
interfereswiththe mulching action.The
besttimeto mow yourlawnistheearly
afternoon.Atthistimethe grasshas
driedand the newlycutarea willnotbe
exposedto thedirectsun.
•Forbestresults,adjustthe lawn mower
cuttingheightsothatthelawn mower
cutsoffonlythe topone-thirdofthe
grass blades.Ifthe lawnisovergrownit
willbe necessaryto raisetheheightof
cutto reducepushingeffortandto keep
from overloadingthe engineand
leavingclumpsof mulchedgrass.For
extremelyheavy mulching,reduceyour
widthofcut, mow slowlyand raise
the rear ofthe lawn mowerone wheel
adjustersettinghigherthanthe front,
•Certaintypesofgrassand grass
conditionsmay requirethatan area be
mulcheda secondtimetocompletely
hidetheclippings.When doinga
secondcut, mow acrossor perpendicu-
lar tothefirstcutpath.
•Change yourcuttingpatternfromweek
toweek. Mow north to southone week
then changetoeastto westthenext
week. Thiswillhelppreventmatting
and grainingofthe lawn.
Max 1/3

,'1 O_ _ _/_
REGULAR SERVICE _ICE OATES
Check for Loose Fasteners _
Claan/Inspact Grass Catcher
(IfE_l.p_) I/ ,/ !/
M Clean Lawn Mower I_ I_
O Clean Under Ddve Cover
(Power-PrOpelledMowers)
Check dttve belt/pulleys
_R Power-PrOpelledMowers) li/
Check/Sharpen/ReplaCe Blade I1_ =
LubricationChart I_
Clean BtatePj/Rechal
Bectdc Start Mowers ll_ I/4
ECheck En_llneOil Level ql/
aChange EnglneOil I/'1._
S Clean Air Fitter I_ =
IInspect Muffler I_
NClean or Replace Spark Plug I1_
E Replace Air Rltar Paper Cartddge I_2
I. Change more OR_ when ¢peraUng under a Ilia W load or in h_gh afnblent temperatures.
2 "Serv_cl more olten when operatingindirtyor dusty _ndit_ns.
3- Replacet>_:1_ moreoftenwhe_ r_mWlngin sandyso_l.
4. Charge 48 hours at ee,d of seasor_, LUBRICATION CHART
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 e year,; replace the spark plug,
clean or replace air filter element and
check blade for wear. A new spark
plug and clean/new air filter element
assures proper air-fuel mixture and
helps your engine run better and last
longer.
•Follow the maintenance schedule in
this manual.
BEFORE EACH USE
1. Check .engine oil bevel,
2. Check'_f0rloose fasteners,
LUBRICATION
Keep unit well lubricated (See "LUBRI-
CATION CHART"),
_Nheela_u_ers
Brake Spring
Bracket
_) Engine oil
Rear door hinge _Handle bracket
mounting pin
_)Refar to maintenance "Engine" section.
_Sprey lubricant
IMPORTANT: Donot oilor grease
plasticwheel bearings, viscouslubri-
cantswillattractdustend dirtthatwill
shortenthe lifeof the self-lubricating
bearings, ifyou feeltheymustbe
lubricated,useonlya dry,powdered
graphitetype lubricantsparingly.
10

PRODUCT SPECIFICATIONS
SERIAL NUMBER
DATE OF PURCHASE
GASOLINE CAPACITY/TYPE: 1.5 QUARTS
UNLEADED REGULAR
OILTYPE (API-SF-SJ): SAE 30 (ABQVE 32°F)
SAE 5W-30 (BELOW 32°F)
OIL CAPACITY: 20 OZS.
SPARK PLUG(GAP: .030") CHAMPION RESISTOR TYPE RN4C
BLADE BOLT TORQUE: 35-40 FT. LBS.
•The model and serial numbers will be found on a decal attached to the rear of the
lawn mower housing.Record both serial number and date of purchase in space
provided above.
LAWN MOWER
Always observe safety rules when
performing any maintenance.
TIRES
•Keep tires free of gasoline, oil, or insect
control chemicals which can harm
rubber.
•Avoid stumps, stones, deep ruts, sharp
objects and other hazards that may
cause tire damage.
BLADE CARE
For best results, mower blade must be
kept sharp. Replace bent or damaged
blades.
TO REMOVE BLADE
1. Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.
2. Tum lawn mower on its side. Make
sure air filter and carburetor are up.
3. Use a wood block between blade and
mower housing to prevent blade from
turning when removing blade bolt.
NOTE: Protect your hands with gloves
and/or wrap blade with heavy cloth.
4. Remove blade bolt by turning counter-
clockwise.
5. Remove blade and attaching hard-
ware (bolt, lock washer and hardened
washer).
NOTE: Remove the blade adapter and
check the key inside hub of blade
adapter, The key must be in good condi-
tion to work properly. Replace adapter if
damaged.
TO REPLACE BLADE
1. Position the blade adapter on the
engine crankshaft. Be sure key in
adapter and crankshaft keyway are
aligned.
2. Position blade on the blade adapter
aligning the two (2) holes in the blade
with the raised lugs on the adapter.
3. Be sure the trailing edge of blade
(opposite sharp edge) is up toward
the engine.
4. Install the blade bolt with the lock
washer and hardened washer into
blade adapter and crankshaft.
5. Use block of wood between blade and
lawn mower housing and tighten the
blade bolt, turning clockwise.
•The recommended tightening torque is
35-40 ft. Ibs.
IMPORTANT: Blade bolt is grade 8 heat
treated.
TO SHARPEN BLADE
NOTE: We do not recommend sharpen-
ing blade - but if you do, be sure the
blade is balanced.
Care should be taken to keep the blade
balanced. An unbalanced blade will
cause eventual damage to lawn mower
or engine.
•The blade can be sharpened with a file
or on a grinding wheel. Do not attempt
to sharpen while on the mower.
11

•To checkbladebalance, drivea nail
intoa beamor wall. Leaveaboutone
inchofthe straightnailexposed.Place
centerhole of bladeoverthe headof
thenail. If bladeisbalanced,it should
remainina horizontalposition.If either
end ofthe blade moves downward,
sharpenthe heavyend untiltheblade
is balanced.
Key_
bolt \Tr
Hardened
washer
Blade
adapter
_shaft
ling Bladeadapter
edge
GRASS CATCHER
• The grass catcher may be hosed with
water, but must be dry when used.
•Check your grass catcher often for
damage or deterioration. Through
normal use it will wear. If catcher needs
replacing, replace only with a manufac-
turer approved replacement catcher.
Give the lawn mower model number
when ordering.
ENGINE
LUBRICATION
Use only high quality detergent oil rated
with API service classification SF-SJ,
Select the oil's SAE viscosity grade
according to your expected operating
temperature.
/
NOTE: Although multi-viscosity oils
(5W30, 10W30 etc.) improve starting in
cold weather, these multi-visc0sity oils
will result in increased oil consumption
when used above 32°I=. Check your
engine oil level more frequently to avoid
possible engine damage from running
low on oil.
Change the oil after every 25 hours of
operation or at least once a year if the
lawn mower is not used for 25 hours in
one_eer.
Check the crankcase oil level before
starting the engine and after each five (5)
hours of continuous use. Tighten oil plug
securely each time you check the oil
level.
TO CHANGE ENGINE OIL
NOTE: Before tipping lawn mower to
drain oil, drain fuel tank by running
engine until fuel tank is empty.
1. Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.
2. Remove engine oil cap; lay aside on a
clean surface.
3. Tip lawn mower on its side as shown
and drain oil into a suitable container.
Rock lawn mower back and forth to
remove any oil trapped inside of
engine.
4. Wipe off any spilled oil on lawn mower
and on side of engine.
5. Fill engine with oil. (See "Add Oil" in
the Operecion section of this manual.)
6. Reconnect spark plug wire to spark
plug.
AIR FILTER
Your enginewill not runproperlyand may
be damagedby usinga dirtyair filter.
Replacethe airfilter everyyear or after
every100 hoursof operation,more often
if youmow in verydusty,dirtyconditions.
Do notwashair filter.
TO CHANGE AIRFILTER
1. Removetheair filter by turning
clockwisetothe stopand pullaway
from collar.
2. Removefilterfrominsideofcover.
3. Cleanthe insideofthe coverand the
collarto removeanydirtaccumula-
tion.
4. Insertnewfilterintocover.
5. Putairfilter coverand filter intocollar
aligningthe tabwiththe slot.
6. Pushin on coverand rumcounter-
clockwiseto tighten.
12

Turn
Collar Clip clockwise to
remove
Airfilter
Air filtercover Turn counter-
clockwiseto
tighten
MUFFLER
Inspect and replace corroded muffler as it
could create a fire hazard and/or dam-
age.
SPARK PLUG
Replace spark plug at the beginning of
each mowing season or after every 100
hours of operation, which ever occurs
first. Spark plug type and gap setting are,,
shown in PRODUCT SPECIFICATIONS
section of this manual.
CLEANING
IMPORTANT: For best performance,
keep mower housing free of built-up
grass and trash. Clean the underside of
your mower after each use.
_CAUTION: Disconnect spark plug wire
from spark plug and place wire where it
cannot come in contact with the spark
plug.
• Clean the underside of your lawn
mower by scraping to remove build-up
of grass and trash.
• Clean engine often to keep trash from
accumulating. A clogged engine runs
hotter and shortens engine life.
•Keep finished surfaces and wheels free
of all gasoline, oil,etc.
•We do not recommend using a garden
hose to clean lawn mower unless the
electrical system, muffler, air filter and
carburetor are covered to keep water
out. Water in engine can result in
shortened engine life.
ACAUTION: Before performing any '
service or adjustments:
1. Release control bar and stop engine.
. 2. Make sure the blade and all moving
parts have completely stopped.
3. Disconnect spark plug wire from spark
plug and place where it cannot come
in contact with plug.
LAWN MOWER
TO ADJUST cu'n'ING HEIGHT
See 'TO ADJUST CUTTING HEIGHT" in
the Operation section of this manual.
REAR DEFLECTOR
The rear deflector, attached between the
rear wheels of your mower, is provided to
minimize the possibility that objects will
be thrown out of the rear of the mower
intd the operator mowing position. If the
deflector becomes damaged, it should be
replaced.
TO ADJUST HANDLE
The handle on your lawn mower has
three (3) height positions - adjqst to
height that suits you.
•Squeeze the bottom ends of lower
handle towards each other until the pin
in handle can be inserted into one of
the three height adjustment holes.
Lo_ pin
adjustment
bracket
13

TO ASSEMBLE GRASS CATCHER
1. Put grass catcher frame into grass bag
with dgid part of bag on the bottom.
Make sure the frame handle is outside
ofthe bag top.
2. Slip vinyl bindings over frame.
NOTE: If vinyl bindings are too stiff, hold
them in warm water for afew minutes. If
bag gets wet, let it dry before using.
ACAUTION: Do not run your lawn mower
without clipping deflector or approved
grass catcher in place. Never attempt to
operate the lawn mower with the rear
door removed or propped open.
Catcher
frame
handle
\
Frame
opening
ENGINE
ENGINE SPEED
Yourenginespeed hasbeen factoryset.
Do notattempttoincreaseenginespeed
orit may resultin personalinjury.Ifyou
believethatthe engineis runningtoo fast
ortooslow,take yourlawn mowerto a
Searsor otherqualifiedservicecenterfor
repairand adjustment.
CARBURETOR
Yourcarburetorhasa non-adjustable
fixedmainjetformixture control, ifyour
enginedoes not operateproperlydue to
suspectedcarburetorproblems,take your
lawnmowertoa Sears or otherqualified
service center for repairand/oradjust-
ment.
IMPORTANT: Nevertamperwiththe
enginegovernor,whichisfactorysetfor
properenginespeed. Overspeedingthe
engineabove the factory highspeed
settingcanbe dangerous. Ifyouthinkthe
engine-governedhigh speed needs
adjusting,contact a Sears or other
qualifiedservice center,whichhas
properequipmentand experienceto
make any necessaryadjustments.
Immediately prepare your lawn mower for
storage at the end of the season or if the
unit will not be used for 30 days or more.
LAWN MOWER
When lawn mower is to be stored for a
period of time, clean it thoroughly, remove
all dirt, grease, leaves, etc. Store in a
clean, dry area.
1. Clean entire lawn mower (See
'CLEANING' in the Maintenance
section of this manual).
2, Lubricate as shown in the Mainte-
nance section of this manual.
3. Be sure that all nuts, bolts, screws,
and pins are securely fastened.
Inspect moving parts for damage,
breakage and wear. Replace if
necessary.
4. Touch up all rusted or chipped paint
surfaces; sand lightly before painting.
HANDLE
You can fold your lawn mower handle for
storage.
1. Loosen the two (2) handle knobs on
sides of the upper handle and allow
handle to fold down to the rear,
2. Squeeze the bottom ends of lower
handle toward each other until pins in
handle clear the brackets and pivot
entire handle assembly forward and
allow it to rest on mower.
•When setting up your handle from the
storage position, the lower handle will
require manually locking into the
mowing position,
IMPORTANT: When folding the handle
for storage or transportation, be sure to
fold the handle as shown or you may
damage the control cables.
Operator presence
controlbar _ _/_)
Upperhandle ._/
Fold forwardfor _ _ :. ."Y/'
stroage .... .._,/%_ ,"_ J
=_ -_ . (_/ _ckward
_position
14 Lowerhandle

Med
Low. pin
3-Position
handle
adjustment
bracket
ENGINE
FUELSYSTEM
IMPORTANT:ItisimLoortanttoprevent
gumdepositsfromforminginessential
fuel system parts such as carburetor, fuel
filter, fuel hose, or tank during storage.
Also, expedence indicates that alcohol
blended fuels (called gasohol or using
ethanol or methanol) can attract moisture
which leads to separation and formation
of acids during storage. Acidic gas can
damage the fuel system of an engine
while in storage.
1. Drain the fuel tank.
2. Start the engine and let it run until the
fuel lines and carburetor are empty.
•Never use engine or carburetor cleaner
products in the fuel tank or permanent
damage may occur.
•Use fresh fuel next season.
NOTE: Fuel stabilizer is an acceptable
altemative in minimizing the formation of
fuel gum deposits during storage. Add
stabilizer to gasoline in fuel tank or
storage container. Always follow the mix
ratio found on stabilizer container. Run
engine at least 10 minutes after adding
stabilizer to allow the stabilizer to reach
the carburetor. Do not drain the gas tank
and carburetor if using fuel stabilizer,
ENGINEOIL
Drain oil (with engine warm) and replace
with clean engine oil. (See "ENGINE" in
the Maintenance section of this manual).
CYLINDER
1. Remove spark plug.
2. Pour one ounce (29 ml) of oil through
spark plug hole into cylinder.
3. Pull starter handle slowly a few times
to distdbute oil.
4. Replace with new spark plug.
OTHER
• Do not store gasoline from one
season to another.
•Replace your gasoline can if your
can starts to rust. Rust and/or dirt in
your gasqline 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 conden-
sation to form and will cause your unit
to rust.
IMPORTANT: Never cover mower while
engone and exhaust areas are still
warm.
ACAUTION:Never store the lawn
mower with gasoline in the tank inside
a building where fumes may reach an
open flame or spark. Allow the engine
to cool before storing in any enclosure.
15

TROUBLESHOOTING CHART
PROBLEM CAUSE
)oes not start 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.
1. Rear of lawn mower
housingor cutting blade
dragging in heavy grass.
2. Cutting too much grass.
3. Dirty air filter.
4. Buildup of grass, leaves,
and trash under mower.
5. Too much oil in engine.
6. Walking speed too fast.
1. Worn, bent or loose blade.
2. Wheel heights uneven.
3. Buildup of grass, leaves
and trash under mower.
.oss of power
Poor cut -
Jneven
CORREC'nON
1. Clean/raplace air filter.
2. Fillfueltank.
3. Draintank and refillwith
fresh cleanfuel.
4. Drain fuel tank and
carburetorand refilltank
withfresh gasoline.
5. Connectwireto plug.
6. Replace spark plug.
7. Tighten blade bolt or
replace blade adapter.
8. Depress control bar to
handle.
9. Replace control bar.
1. Setto "Higher Cut"
position.
2. Set to "Higher Cut"
position.
3. Clean/replace air filter.
4. Clean underside of mower
housing.
5. Check oil level.
6. Cut at slower walking
rSpeed.
1. Replace blade. Tighten
blade bolt.
2. Set allwheelsat same
height
3. Clean undersideof
mower housing.
Excessive 1. Worn. bent or loose blade. 1. Replace blade. Tighten
vibration blade bolt.
2. Bent engine crankshaft. 2. Contact a Sears or other
qualified service center.
_oterter rope hard 1. Engine flywheel brake is On
pull when control bar is released.
2. Bent engine crankshaft.
3. Blade adapter broken.
4. Blade dragging in grass.
1. Depress control bar to
upper handle before
pulling starter rope.
2. Contact a Sears or other
qualified service center.
3. Replace blade adapter.
4. Move lawn mower to cut
grass or to hard surface.
16

TROUBLESHOOTINGCHART
PROBLEM CAUSE CORRECTION"'
._msscatcher 1. Cuttingheighttoolow. 1. Raise cuttingheight.
iotfilling (ifso 2. Lifton bladewornoff. 2. Replace blade.
.:lulpped) 3. Catchernotventingair. 3. Cleangrasscatcher.
tard to push 1. Raise cuttingheight.
1. Grass is too high or wheel
height is too low.
2. Rear of lawn mower
housing or blade dragging
in grass.
3. Grass catcher too full.
4. Handle height position not
rightfor you,
2. Raise rear of lawn mower
housing one (1) setting
higher.
3. Empty grass catcher.
4. Adjust handle height to
suit,
17

CRAFTSMANROTARYLAWNMOWER--MODELNO.917.389620
68
87
j44
23
34
I i
49
4O
4O
27
2O

CRAFTSMAN ROTARY LAWN MOWER- - MODEL NO. 917.389620
KEY PART
NO. NO. DESCRIPTION
1 1316_6 ControlBar
2 166860X479 Lltof3e¢_
3 161105X479 LowerHandle
4132001 RopeGulde
5 63601 LOCkOUt1/4-20
6 131969 Handle Belt
766426 Wire 1"el
874780512 Hex Bolt 5/16-18 x 3/4
9 154132 Hinge Bmcket
!0 165754 Melcher Docr
11 156577 Engine Zone Contro_Ca_e
12 _Hex W&_ner Head Sorew #10-24 x 1/2
13 850733X004 Up-Stop Bracket
14 136376 Hande Kno_
15 51793 Helq01nCotter
16 147286 Hinge Rod
17 1_5946X479 Support Bracket
18 17600406 Screw
19 167132X004 A)de Arm Assembly -LF
20 167133X004 Axle Arm Assembly -RF
21 165858 Rear Sldrt
22 168360X004 Selector Spdng
23 166875 Rear Door Assembly Kit (Incl. Spdngs)
24 751153 Locknut 5/16-18
25 16_36X479 Hancle Bracket Assembly (LeR)
26 1662430(479 Haitdle Bracket Assembly (Right)
27 851856 Screw 1/4-20 x 3_
28 152124 _ge sprig
29 160835X007 Wha_ Ac!ueling Bracket - Front
30 1911_'1J_ Spacer
31 165760 Cllp on Discharge Guard
33 87877 Setector Knob
KEY PART
NO. NO. DESCRIPTION
34
36
36
37
38
39
4O
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
67
68
167130X(JO4 Axle Arm Assembly -LR
166785 Locknut 5/16-18
160_28 Shautder Bolt 5/16-18
161162 WheelAssemely
164,362 Shoulder Bdt
83923 Flanged Locknut
774OO Hubcap
88652 Hinge Screw
165766 Spdng(LH)
165767 Sprlng(RH)
165912 Door Bolt
150406 Hex Head Thread Relling Screw 3/8-16 x 1
85463 Danger Decal
63124 Nut
167131X004 Axle Arm Assembly - RR
151161
57143 Wave Washer
Nut
16_B78 Houelng As_emi01y (Ind, Ref. #17. 18 & 46)
851084 Hex Head Screw 3/8-24 x 1-3/B Grd. 8
850263 Helical Lockwasher
851074 Hardened Washer
165833 21" Blade
851514 Blade Adapter
161551 Adjustment Bolt
166113 Grass Bag
165755 Catcher Frame
70 ...... Engine - (See Breakdown)
C_ 143.016712
- - 161(_8 Warning Decal (Not Shown)
- - 1774O6 Owners ManuaJ

CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.016712
130
120 119
275.
103,
182216 19
_'I_224 174
223,_=_ _184_80_ =2/07 52"
1854
238 250
104
_355
195
36