Craftsman 917388611 Owner’s Manual

Owner's Manual
ICRAFT$1VlAN°I
6.75 HORSEPOWER 21" REAR DISCHARGE
ROTARY LAWN MOWER
Model No.
917.388611
Safety
Operation
Maintenance
EspaSol
Repair Parts
CAUTION:
Read and follow all Safety Rules and Instructions
before operating this equipment
Sears, Roebuck and Co., Hoffman Estates, IL 60179
Visit our Craftsman website: www, sears.com/craftsman
Warranty ................................................. 2 Product Specifications .......................... 11
Safety Rules ........................................ 2-4 Service and Adjustments ...................... 14
Assembly ................................................ 5 Storage ............................................ 15-16
Operation ............................................. 6-9 Troubleshooting .............................. 16-17
Maintenance Schedule ........................ 10 Repair Parts ..................................... 34-39
Maintenance .................................... 10-13 Parts Ordering ........................ Sack Cover
LIMITED TWO YEAR WARRANTY ON CRAFTSMAN POWER MOWER
For two years from date of purchase, when this Craftsman Lawn Mower is maintained,
lubricated, and tuned up according to the operating and maintenance instructions in the owner's manual, Sears will repair free of charge any defect in material or work-
manship.
Ifthis Craftsman Lawn Mower is used for commercial or rental purposes, this warranty
appries for only 90 days from the date of purchase. This Warranty does not cover:
Expendable items which become worn dudng normal use, such as rotary mower blades, blade adapters, belts, air cleaners and spark plug.
Repairs necessary because of operator abuse or negligence, including bent crankshafts and the failure to maintain the equipment according to the instructions
contained in the owner's manual.
Warranty service is available by returningthe 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 UnitedStates.
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
IMPORTANT: This cutting machine is capable of amputating hands and feet 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
instructionson 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 notput hands or feet near or under
rotating parts. Keep clear of the
discharge opening at all times.
Onty allow responsible individuals, who are familiar with the instructions, to
operate the machine.
Clear the area of objects such as
recks, toys, wire, bones, sticks, etc., which could be picked up and thrown by the blade.
Be sure the area is clear ofother people before mowing. Stop machine if anyone enters the area.
Do not operate the mower when barefoot or wearing open sandals. Always wear substantial foot wear.
Do net pull mower backwards unless
absolutely necessary. Always look
down and behind before and while moving backwards.
Do notoperate the mower without
proper guards, plates, grass catcher or
other safety protective devices inplace.
See manufacturer's instructionsfor
proper operation and installation of accessories. Only use accessories
approved by the manufacturer,
Stop the blade(s) when crossing gravel
drivas,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
untilthe blade comes to complete stop before removing grass catcher.
Mow only in daylight or good artificial light.
Do not operate the machine while under the influence of alcohol or drugs.
Never operate machine inwet grass. Always be sure of your footing: keep a firm holdon the handle and walk; never
run.
Disengage the self-propelled mecha-
nismor drive clutch on mowers so
equipped before starting the engine
(motor).
If the equipment should start to vibrate
abnormally, stop the engine (motor)
and check immediatelyfor the cause. Vibration is generally a warning of
trouble.
Always wear safety goggles orsafety glasses with side shields when operating mower.
II. SLOPE OPERATION Slopes are a major factor related to slip
and tall accidents which can result in severe injury. All slopes require extra
caution. If you feel uneasy on a slope, do not mow it.
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 nottrimnear drep-offs, ditchesor embankments. The operator could lose footing or balance.
Do nottrim excessively steep slopes.
Do not mow on wet grass. Reduced
footing oouTd cause slipping.
III. CHILDREN Tragicaccidentscan occur if the operator
is not alert to the presence of children. Children are often attracted to the
machine and the mowing acUvity.Never assume that children will remain where
you last saw them.
Keep childrenout of the trimming area
and underthe watchful care of another responsible adult.
Be alert and turn machine off if children enter the area.
Before and while walking backwards, look behind and down for small
chiJdren.
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
Use extra care in handling gasoline
and otherfuels. They are flammable and vapors are explosive.
-Use only an approved container.
-Never remove gas cap or add fuel
with the engine running, Allow
engine to cool before refueling. Do
not smoke,
-Never refuel the machine indoors.
-Never store the machine or fuel
container inside where there is an open flame, such as a water heater.
Never run a machine inside a closed area.
Never make adjustments or repairs with the engine (motor) running. Disconnect
the spark plug wire, and keep the wire away from the plug to prevent acciden- tal starting.
Keep nuts and bolts, especially blade attachment bolts, 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 debris build-up. Clean oil or fuel spillage. Allow machine to cool before
storing.
Stop and inspect the equipment ifyou strike an object. Repair, if necessary, before restarting.
Never attempt to make wheel height adjustments while the engine (motor) is running.
Grass catcher components are subject to wear, damage, and deterioration,
which could expose moving parts or aUow 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 setting or overspeed the engine.
3
_,Look for this symbol to point out
importantsafety precautions. It means CAUTION!I! BECOME ALERT!!! YOUR
SAFETY IS INVOLVED.
_,WARNING: Battery posts, terminals and
related accessories contain lead and lead compounds, chemicals known to the
State of California to cause cancer and birthdefects or other reproductive harm.
, CAUTION: In order to prevent
Wash hands after handling.
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.
_,WARNING: 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.
These accessoriRs were availablewhen thislawn rnc_v_rwas produced. They are not
shipped with your mower.They are also availableat most Sears retailoutletsand service centers. MostSears storescan alsoo_derrepairpartsfor you, whenyou providethemodel numberofyourlawnmower. Some of these accessodRsmaynot applyto yourlawnmower.
LAWN MOWER PERFORMANCE
CLIPPING DEFLECTOR
FOR REAR DISCHARGE LAWN MOWERS MULCHER KITS
GRASS CATCHERS GRASS CATCHERS
FOR FOR
REAR DISCHARGE SIDE DISCHARGE
LAWN MOWERS LAWN MOWERS
LAWN MOWER MAINTENANCE
MUFFLERS AIR FILTERS SPARK PLUGS
BELTS BLADES BLADE ADAPTERS WHEELS ENGINE OIL
4
STABILIZER
GAS CANS
Read these instructions and this manuar
in its entirety before you attempt to
assemble or operate your new lawn
mower.
IMPORTANT: This lawn mower is shippedWITHOUT OIL OR GASOLINE in
the engine. Your new lawn mower has been as-
sembled at the factory with the exception of those parts left unassembled for shipping purposes. All parts such as nuts, washers, bolts,etc., necessary to com- plete 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
1. Remove loose parts included with
mower.
2. Cut down two end comers of carton
and layend panel down flat.
3. Remove all packing matedals except
padding between upper and lower handle and padding holding operator presence control bar to upper handle.
4. Rolllawn mower out of carton and
check carton thorougryfor additional
loose pads.
HOWTO SET UPYOUR LAWN MOWER
TO UNFOLD HANDLE
IMPORTANT: Unfold handle carefully so as not to pinch or damage control cables.
1. Raise handles until lower handle
section locks into place in mowing position.
2. Remove protective padding, raise upper handle section into place on lower handle and tighten both handle
knobs.
3. Remove handle padding holding operator presence control bar to upper handle.
Your lawn mower handle can be adjusted for yourmowing comfort. Refer to "AD-
JUST HANDLE" in the Service and
Adjustments section of this manual.
control bar
Upper
Lift u
posiUon
Lower handle
TO INSTALL ATrACHMENTS Your lawn mower was shipped ready to
be used as a mulcher. To convert mower to bagging, see "TO CONVERT MOWER"
in the Operation section of this manual,
5
KNOWYOUR LAWN MOWER
READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR LAWN MOWER. Compare the illustrations with your lawn mower to familiarize yourself
with the location of various controls and adjustments. Save this manual for future reference.
These symbols may appear on your lawn mower or in literature supplied with the product. Learn end understand their meaning,
I' 1
CAUTION ENGINE ENGINE FAST SLOW CHOKE FUEL OIL DANGER, KEEP HANDS
OR WARNING ON OFF AND FEET AWAY
zone control cable
Gasoline filler cap
Airfilter
Grass
Engine oil cap with dipstick,
IMPORTANT: This lawn mower is shipped (oneachwheel)
WITHOUT OIL OR GASOLINE in the engine.
MEETS CPSC SAFETY REQUIREMENTS Sears rotary walk-behind power lawn mowers conform to the safety standards of the
Amedcan National Standards Institute and the U.S. Consumer Product Safety Commis- sion. The blade turns when the engine is running.
Operator presence control bar - mustbe Primer - pumps additional fuel from the held down to the handle to startthe carburetor to the cylinder for use when engine. Release to stop the engine, starting a cold engine. Starter handle - used for starting the
engine. 6
Primer
Muffler
Housing
Wheeladjuster
Theoperationofanylawn
mowercan result in foreign
ob eels thrown into the eyes, which can resull in
severe eye damage.
Always wear safety glasses or eye shields while operating your lawn mower
or performing any adjustments or repairs. We recommend a wide vision safety
mask over spectacles or standard safety
glasses.
HOWTO USEYOUR LAWN MOWER
ENGINE SPEED The engine speed was set at the factory
for optimumperformance. Speed is not adjustable.
ENGINE ZONE CONTROL
_kCAUTION: Federal regulations require
an engine control to be installed on this lawn mower in order to minimize the risk
of blade contact injury, Do not under any circumstances attempt to defeat the function of the operator control. The blade turns when the engine is running.
Your lawn mower is equipped with an
operator presence control bar which
requiresthe operator to be positioned
behind the lawn mower handle to start
and operate the lawn mower.
TO ADJUST cu'rrlNG HEIGHT Raise wheels for low cut and lower
wheels for high cut, adjust cutting height to suit your requirements. Medium
positionis 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 properly positioned
when plate tab insertsinto hole in lever. Also, 9-position adjusters (if so equipped)
allow lever to be positioned between the plate tabs.
TO CONVERT MOWER
Yourlawn mower was shippedready to be usedas a mulcher. Toconverttobagging:
REAR BAGGING
Uff rear door of the lawn mower and place the grass catcher frame hooks onto the
door pivotpins.
To convertto mulchingoperation, remove grass catcherand dose reardoor.
_.CAUTION: 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.
Pivot Rear Grass
Catcher frame hook
TO EMPTY GRASS CATCHER
1. Lift up on grasscatcher usingthe frame handle.
2. Remove grass catcher with clippings from under lawn mower handle.
3. Empty clippings from bag usingboth
frame handle and bag handle.
NOTE: Do notdrag the bag when emptying; it will cause unnecessary wear.
catcher
handle
/
frame
handle
LowerWheelsfor HighCut __
RaiseWheelstot Low C_ Lever
Bag
I
BEFORE STARTING ENGINE
ADD OIL Your lawnmower is shipped without oil in the engine. Engine holds 20 oz. of oil.
For type and grade of oil to use, see "ENGINE" in Maintenance section of this
manual.
f. Be sure lawnmower is level and area
around oil fill is clean.
2. Remove engine oil cap and fill to the full line on the dipstick. Pour oil slowly.
Do not over fill.
NOTE: Allow oil to settle down into engine
for accurate readir',g.To read proper leve_,
tighten engine oil cap, then remove it to read the dipstick.
3. Reinstall engine oil cap and tighten.
Check oil level before each use. Add oil if needed. Fill to full line on dipstick.
Change the oil after every 25 hours of operation or each season. You may
need to change the oil more often under dusty, dirty conditions.
ADD GASOLINE
Fill fuel tank. Use fresh, clean, regular unleaded gasoline with a minimum of
87 octane. Do not mix oil with gaso- line. Purchase fuel in quantities that can be used within 30 days to assure fuel freshness.
_.WARNING: Experience indicates that alcohol b_ended fuels (called 9asohol or using ethanol or methanol) can attract
moisture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel system of an
engine while in storage. To avoid engine problems, the fuel system should be
emptied before storage of 30 days or longer, Drain the gas tank, start the
engine and let it run untilthe fuel lines and carburetorare empty. Use fresh fuel
next season, See Storage Instructionsfor
additional information. Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur.
A CAUTION: Fill to bottom of gas tank tiller neck. Do not overfill. Wipe offany
spilled oil or fuel. Do not store, spill or
use gasoline near an open flame.
Gasoline fillercap
Engine oilcap
TO START ENGINE
NOTE: Due to protectivecoatings on the engine, a small amount of smoke may be
present duringthe 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 anow starter
rope to snap back.
TO STOP ENGINE
To stop engine, release operator presence control bar.
NOTE: In cooler weather it may be necessary to repeat pdming steps. In
warmer weather over priming may cause flooding and engine will not start. Ifyou do flood engine, wait a few minutes
before attempting to start and do not repeat primim:jsteps.
8
MOWINGTIPS
Under certain conditions,such as very tallgrass, it may be necessary to raise
the height of cut to reduce pushing effortand to keep from overloading the engine and leaving clumps of grass clippings. It may also be necessary to reduce ground speed and/or runthe
lawn mower over the area a second time.
For extremely heavy cutting, reduce the width of cut by overlapping previously cut path and mow slowly.
For better grass bagging and most cutting conditions,the engine speed
should be set in the fast position.
When using a rear discharge lawn
mower in moist, heavy grass, clumps of
cut grass may not enter the grass catcher. Reduce ground speed
(pushingspeed) and/or run the lawn mower over thearea a second time.
If a trail of clippingsis left onthe right
side of a rear discharge mower, mow in a clockwise direction with a small
ovedap to collect the clippings on the
next pass.
Pores in cloth grass catchers can
become filled with dirt and dust with use and catchers will collect less grass.
To prevent this, regularlyhose catcher off with water and let dry before using.
Keep top of engine around starter clear
and clean of grass clippingsand chaff. This will help engine air flow and
extend engine life.
MULCHING MOWlNGTIPS IMPORTANT: For best performance,
keep mower housing free of buiIFup grass and trash. See "CLEANING" inthe
Maintenance section of this manual.
The special mulching blade will recut
the grass clippings many times and
reduce them in size so that as they fall onto the lawn they will disperse into the grass and not be noticed. Also, the mulched grass will biodegrade quickly to provide nutrients for the lawn.
Always mulch with your highest engine (blade) speed as thiswill provide the
best recutling action of the blades.
Avoid cuttingyour lawn when it is wet. Wet grass tends to form clumps and interferes with the mulching action. The best time to mow your lawn isthe early affemoon. At thistime the grass has
dried and the newly cut area will not be exposed to the direct sun.
For best results,adjust the lawn mower cutting height so that the lawn mower cuts off only the top one-third of the grass blades. If the lawn is overgrown it will be necessary to raise the height of
cut to reduce pushing effort and to keep from overloading the engine and
reavingclumps of mulched grass. For
extremely heavy mulching, reduce your width of cutby overlapping previously cut path and mow slowly.
Certain types of grass and grass conditions may require that an area be mulched a second time to completely hide the clippings. When doing a
second cut, mow across or perpendicu- lar to the first cut path.
Change your cutting pattern from week to week. Mow north to southone week
then change to east to west the next week. This will help prevent matting and graining of the lawn.
MA,NTENANCESC.EOULE
ROGO R 0RV,CB
Check for Loose Fasteners ¥/ I 1_
ClearVInspect Grass Catcher
It Equipped) i/ ll/ i/
M Clean Lawn Mower ll/ _'
Clean Under Drive CoverIPower-Propelled Mowers)
Check ddve belt/pulleys
E (Power-Propelled Mowers) I_
ChecWSharpeIVReplace Blade _,/_
Lubrication Chart _' f#/
Clean Batter//Recharge
Electric Start Mowers'_ V/ t,J4
E Check Engine Oil Level
N Change En_line Oil 1_.2
G Clean Air Filter _ 2
I Inspect Muffler _'
N Clean or Replace Spark Plug t/
E Replace Air Filter Paper Cartridge i,/2
1 . Chsnoe more often when operating urtdet a heavy load Or in high aml_erd lemperalure$
2 - Service more o_lenwhen operating in ditty or dusly _ditionJ=, 3 - Replace blades more o_en when mowingin sandy _oII,
4 - Charge 48 houm al e_ of season.
GENERAL RECOMMENDATIONS The warranty on this lawn mower does
not cover items that have been subjected to operator abuse or negfigence. To
receive full value from the warranty, operator must maintain mower as instructed in this manual
Some adjustments will need to be made periodically to properly maintain your
unit. All adjustments in the Service and
Adjustments section of this manual should be checked at least once each
season.
Once a year, replace the spark plug, clean or replace air filter element and
check blade for wear. A new spark plug and clean/new air filter element
assure proper air-fuel mixture and help your engine run better and last longer.
Follow the maintenance schedule in this manual.
BEFORE EACH USE
1. Check engine oil level.
2. Check for loose fasteners.
LUBRICATION Keep unit well lubricated (See "LUBRI-
CATION CHART').
(_) Handle bracket mounting pins
(_) Spray lubricant _) See "ENGINE" In Maintenance section.
10
LUBRICATION CHART
(_) Wheeladjuster
IMPORTANT: Do not oil or grease plastic wheel bearings. Viscous
lubricants willattract dust and dirt that will shorten the life of the self-lubricat-
ing bearings. If you feel they must be lubricated, use only a dry, powdered graphite type lubricant sparingly.
(_) Brake
spdng
bracket
Rear
door hinge
PRODUCT SPECIFICATIONS
SERIAL NUMBER: DATEOF PURCHASE:
3ASOLINE CAPACITY/TYPE: 1.5 QUARTS UNLEADED REGULAR S)ILTYPE (API-SF-SJ): SAE 30 (ABOVE 32°F)
OIL CAPACITY: 20 OZS.
SPARK PLUG (GAP: .045") CHAMPION RESISTOR TYPE RJ19LM4 BLADE BOLTTORQUE: 35-40 FT. LBS.
The model and sedal 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 the space
provided above.
SAE 5W-30 (BELOW 32°F)
LAWN MOWER Always observe safety rules when
performing any maintenance. TIRES
Keep tires free of gasoline, oil,or insect controlchemicals 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
keptsharp. 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. Turn lawn mower on its side. Make sure air tilter and carburetor are up.
3. Use a wood block between blade and
mower housingto 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,
Bladeadapter _ Crankshaft
Key..._ _=,1 "_ keyway
Lo_kwasher_1_- _"_ / )_
Blade
o C X
Blade / shaft
washer Trailingedge Bladeadapter
11
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.
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.
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. Ifcatcher 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
withAPI service classification SF-SJ. Select the oil's SAE viscosity grade
according to your expected operating temperature.
SAE VISCOSITY GRADES
Change the oil after every 25 hours of operation or at least once a year if the
lawn mower is not used for 25 hours in
one year. Check the crankcase oil level before
startingthe engine and after each five (5) hours of continuous use. Tighten oilplug 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 Operation section of this manual.)
6. Reconnect spark plug wire to spark plug.
NOTE: Although multi-viscosity oils (5W30, 10W30 etc.) improve starting in
coldweather, these multi-viscosity oils will result in increased oil consumption when used above 32°E Check your engine oil level more frequently to avoid
possible engine damage from running low on oil.
12
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