Craftsman 917377240 User Manual ROTARY MOWER Manuals And Guides L0403444

CRAFTSMAN Walk Behind Lawnmower, Gas Manual L0403444 CRAFTSMAN Walk Behind Lawnmower, Gas Owner's Manual, CRAFTSMAN Walk Behind Lawnmower, Gas installation guides

User Manual: Craftsman 917377240 917377240 CRAFTSMAN ROTARY MOWER - Manuals and Guides View the owners manual for your CRAFTSMAN ROTARY MOWER #917377240. Home:Lawn & Garden Parts:Craftsman Parts:Craftsman ROTARY MOWER Manual

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Owner's Manual

IC..FTSM..°I
ROTARY LAWN MOWER
7.0 Horsepower
Power-Propelled
21" Multi-Cut
Model No.
917.377240

• EspaSol, p. 19

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

U.S.A.

Maintenance

Warranty ...................................................
2
Safety Rules ..........................................
2-4
Product Specifications .............................. 4
Assembly / Pre-Operation ........................ 6
Operation .............................................
7-11
Maintenance Schedule ........................... 12

LIMITED TWO YEAR WARRANTY

......................................

Service and Adjustments
...................
Storage ..............................................
Troubleshooting
.................................
Repair Parts .......................................
Sears Service ..........................
Back

ON CRAFTSMAN

12-15
15-16
16-17
17-18
36-43
Cover

POWER MOWER

For two years from date of purchase, when this Craftsman Lawn Mower is maintained,
lubricated, and tuned up according to the operating and maintenance instructions in the
owner's manual, Sears will repair free of charge any defect in material or workmanship.
If this Craftsman Lawn Mower is used for commercial or rental purposes, this warranty
applies for only 90 days from the date of purchase.
This Warranty does not cover:
• Expendable items which become worn during normal use, such as rotary mower
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 returning the Craftsman power mower to the nearest Sears
Parts & Repair Center in the United States. This warranty applies only while this product
is used in the United States.
This Warranty gives you specific legal rights, and you may also have other rights which
vary from state to state.
Sears,

Roebuck

And Co., D/817 WA, Hoffman

Estates,

IL 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.
Ai:i,
WARNING: Battery posts, terminals and
related accessories contain lead and lead
compounds, chemicals known to the State
of California to cause cancer and birth
defects or other reproductive harm. Wash
hands after handling.
_, 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.

_¢LLookfor this symbol to point out
important safety precautions. It means
CAUTION!H
BECOME ALERT!H
YOUR SAFETY IS INVOLVED.
_,WARNING:
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 come in contact with plug.
_JLWARNING: 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.

I. GENERAL
OPERATION
II. SLOPE OPERATION
• Read, understand, and follow all
Slopes are a major factor related to slip
instructions on the machine and in the
and fall accidents which can result in
manual(s) before starting. Be thoroughly
severe injury.All slopes require extra caufamiliar with the controls and the proper
tion. If you feel uneasy on a slope, do not
mow it.
use of the machine before starting.
• Do not put hands or feet near or under
DO:
rotating parts. Keep clear of the dis• Mow across the face of slopes: never
charge opening at all times.
up and down. Exercise extreme caution
• Only allow responsible individuals, who
when changing direction on slopes.
are familiar with the instructions, to oper- • Remove obstacles such as rocks, tree
ate the machine.
limbs, etc.
• Clear the area of objects such as rocks,
• Watch for holes, ruts, or bumps. Tall
toys, wire, bones, sticks, etc., which
grass can hide obstacles.
could be picked up and thrown by the
DO
NOT:
blade.
• Do not trim near drop-offs, ditches or
• Be sure the area is clear of other people
embankments. The operator could lose
before mowing. Stop machine if anyone
footing or balance.
enters the area.
•
Do not trim excessively steep slopes.
• Do not operate the mower when bare•
Do not mow on wet grass. Reduced footfoot or wearing open sandals. Always
ing could cause slipping.
wear substantial foot wear.
• Do not pull mower backwards unless
III. CHILDREN
absolutely necessary. Always look down
Tragic accidents can occur if the operator
and behind before and while moving
is not alert to the presence of children.
backwards.
Children are often attracted to the machine
• Do not operate the mower without
and the mowing activity. Never assume
proper guards, plates, grass catcher or
that children will remain where you last
other safety protective devices in place.
saw them.
• See manufacturer's instructions for
• Keep children out of the trimming area
proper operation and installation of
and under the watchful care of another
accessories. Only use accessories apresponsible adult.
proved by the manufacturer.
• Be alert and turn machine off if children
• Stop the blade(s) when crossing gravel
enter the area.
drives, walks, or roads.
• Before and while walking backwards,
• Stop the engine (motor) whenever you
look behind and down for small children.
leave the equipment, before cleaning the • Never allow children to operate the mamower or unclogging the chute.
chine.
• Shut the engine (motor) off and wait until • Use extra care when approaching blind
the blade comes to complete stop before
corners, shrubs, trees, or other objects
removing grass catcher.
that may obscure vision.
• Mow only in daylight or good artificial
IV. SERVICE
light.
• Do not operate the machine while under
• Use extra care in handling gasoline and
the influence of alcohol or drugs.
other fuels. They are flammable and
• Never operate machine in wet grass.
vapors are explosive.
Always be sure of your footing: keep a
- Use only an approved container.
firm hold on the handle and walk; never
- Never remove gas cap or add fuel
run.
with the engine running.
• Disengage the self-propelled mechAllow engine to cool before refueling.
anism or drive clutch on mowers so
Do not smoke.
- Never refuel the machine indoors.
equipped before starting the engine
- Never store the machine or fuel
(motor).
container inside where there is an
• If the equipment should start to vibrate
abnormally, stop the engine (motor) and
open flame, such as a water heater.
• Never run a machine inside a closed area.
check immediately for the cause. Vibration is generally a warning of trouble.
• Never make adjustments or repairs with
• Always wear safety goggles or safety
the engine (motor) running. Disconnect the
glasses with side shields when operating
spark plug wire, and keep the wire away
mower.
3 from the plug to prevent accidental starting.

• Keepnuts and bolts, especiallyblade
• Grasscatcher componentsare subject
attachmentbolts, tight and keep equipto wear, damage,and deterioration,
ment in good condition.
which could expose moving parts or
• Nevertamper with safetydevices.Check
allow objectsto be thrown. Frequently
their proper operationregularly.
check componentsand replace with
• Keep machine free of grass, leaves, or
manufacturer'srecommendedparts,
otherdebrisbuild-up.Cleanoilorfuel spillwhen necessary.
age.Allowmachinetocool beforestoring. • Mowerblades are sharp and can cut.
• Stop and inspectthe equipmentif you
Wrap the blade(s)or weargloves,and
strike an object. Repair,if necessary,
use extra caution when servicingthem.
before restarting.
• Do not changethe engine governorset• Neverattempttomakewheelheightadjustting or overspeedthe engine.
mentswhilethe engine(motor)is running.

Serial Number:
Date of Purchase:
GasolineCapacity /Type:

1.6 Quarts (Unleaded Regular)

Oil Type (API-SF-SJ):

SAE 30 (above 32°F); SAE 5W-30 (below 32°F)

Oil Capacity:

20 Ounces

Spark Plug (Gap: .030")

Champion

Blade Bolt Torque:

35-40 ft. Ibs.

RC12YC

The model and serial numbers will be found on a decal on the rear of the lawn mower
housing. Record both serial number and date of purchase in space provided above.

Repair Protection Agreements
Congratulations on making a smart purchase. Your new Craftsman® product is
designed and manufactured for years of
dependable operation. But like all products, it may require repair from time to
time. That's when having a Repair Protection Agreement can save you money and
aggravation.

Fast help by phone - phone support
from a Sears technician on products
requiring in-home repair, plus convenient repair scheduling.
Once you purchase the Agreement, a
simple phone call is all that it takes for you
to schedule service. You can call anytime
day or night, or schedule a service appointment online.
Sears has over 12,000 professional repair
specialists, who have access to over 4.5
million quality parts and accessories.
That's the kind of professionalism you can
count on to help prolong the life of your
new purchase for years to come. Purchase
your Repair Protection Agreement today!
Some limitations
and exclusions
apply.
For prices and additional
information
call 1-800-827-6655.

Purchase a Repair Protection Agreement
now and protect yourself from unexpected
hassle and expense.
Here's what's included in the Agreement:
•
•
•
•

Expert service by our 12,000 profesional repair specialists.
Unlimited service and no charge for
parts and labor on all covered repairs.
Product replacement
if your covered
product can't be fixed.
Discount of 10% from regular price of
service and service-related parts not
covered by the agreement; also, 10%
off regular price of preventive maintenance check.

Sears Installation
Service
For Sears professional installation of home
appliances, garage door openers, water
heaters, and other major home items, in
the U.S.A. call 1-800-4-MY-HOME®.

These accessories were available when this lawn mower was produced. They are not
shipped with your mower. They are also available at most Sears retail outlets and
service centers. Some of these accessories may not apply to your lawn mower.
LAWN MOWER

PERFORMANCE
CLIPPING
FOR
REAR
DISCHARGE
DEFLECTORS

---

LAWN MOWERS

\\
_\\

\\\

STABILIZER

GRASS CATCHERS
FOR

LAWN MOWERS
REAR DISCHARGE

LAWN MOWERS
SIDE DISCHARGE

LAWN MOWER MAINTENANCE

MUFFLERS

BELTS

AIR FILTERS

BLADES

BLADE ADAPTERS

SPARK PLUGS

WHEELS

ENGINE OIL

Read these instructions and this manual in
its entirety before you attempt to assemble
or operate your new lawn mower.
IMPORTANT: This lawn mower is shipped
WITHOUT OIL OR GASOLINE in the engine.
You r new lawn mower has been assembled at
the factory with the exception of those parts
left unassembled for shipping purposes. To
ensure safe and properoperation of your lawn
mower, all parts and hardware you assemble
must be tightened securely. Use the correct
tools as necessary to ensure proper tightness. All parts such as nuts, washers, bolts,
etc., necessary to complete the assembly
have been placed in the parts bag.
TO REMOVE

MOWER

Operator presence
control bar

LIFT
UF

Mowing
position

Lower handle

FROM CARTON

TO ASSEMBLE GRASS CATCHER
1. Put grass catcher frame into grass bag
with rigid part of bag on the bottom.
Make sure the frame handle is outside
of the bag top.
2. Slip vinyl bindings over frame.
NOTE: If vinyl bindings are too stiff, hold
them in warm water for a few minutes. If
bag gets wet, let it dry before using.

f. Remove loose parts included with mower.
2. Cut down two end corners of carton
and lay end panel down flat.
3. Remove all packing materials except
padding between upper and lower
handle and padding holding operator
presence control bar to upper handle.
4. Roll lawn mower out of carton and
check carton thoroughly for additional
loose parts.

Catcher
frame
handle

HOW TO SET UP YOUR 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 your mowing comfort. Refer to "ADJUST HANDLE" in the Service and Adjustments section of this manual.

Et
TO INSTALL

Frame
opening

ATTACHMENTS

Your lawn mower was shipped ready to be
used as a mulcher. To convert mower to
bagging or discharging, see "TO CONVERT MOWER" in the Operation section
of this manual.

KNOW YOUR LAWN MOWER
READ THIS OWNER'S MANUAL AND ALL 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
OR WARNING

ENGINE
ON

ENGINE
OFF

FAST

SLOW

CHOKE

FUEL

OIL

DANGER, KEEP HANDS
AND FEET AWAY

Operator presence control bar
Drive
bar
Handle knob

Starter
handle

Engine oil cap with dipstick

Primer
Grass
catche
Muffler

Mulcher door

Wheel adjuster (on each

,Housing

IMPORTANT: This lawn mower is shipped 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
American National Standards Institute and the U.S. Consumer Product Safety Commission. The blade turns when the engine is running.
Operator presence control bar - must
be held down to the handle to start the
engine. Release to stop the engine.
Starter handle - used for starting engine.
Mulcher door - allows conversion to
discharging or bagging operation.

Drive control bar - used to engage
power-propelled forward motion of mower.
Primer - pumps additional fuel from the
carburetor to the cylinder for use when
starting a cold engine.

_rator presence control bar

The operationof any lawn
mowercan resultin foreign
objectsthrown into the
eyes, which can result in
severeeye damage.Always
wear safetyglasses or eye shields while
operatingyour lawn moweror performing
any adjustmentsor repairs.We recommend a standard safetyglasses or wide
vision safety mask worn over spectacles.

}rive
control bar
DRIVE
CONTROL
ENGAGED

DRIVE CONTROL

HOW TO USE YOUR LAWN MOWER
ENGINE

DRIVE
CONTROL
DISENGAGED

ADJUSTMENT

Over time, the drive control system may
become "loose", resulting in decreased
speed. There is a thumbscrew on the
underside of the drive control housing to
increase tension on the drive cable. Proceed as follows:
f. Turn unit off and disconnect spark plug
wire from spark plug.
2. Rotate thumbscrew counter-clockwise
to tighten the drive cable.
3. Operate mower to test drive speed.
4. If condition fails to improve after the
above steps (forward speed remains
the same), your drive belt is worn and
should be replaced.
NOTE: If mower begins to "creep" forward,
the drive cable is too tight. Rotate thumbscrew clockwise to loosen drive cable.

SPEED

The engine speed was set at the factory
for optimum performance. Speed is not
adjustable.
ENGINE ZONE CONTROL
_CAUTION:
Federal regulations require
an engine control to be installed on this
lawn mower in order to minimize the
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
requires the operator to be positioned
behind the lawn mower handle to start
and operate the lawn mower.

TO ADJUST CUTTING HEIGHT
Raise wheels for low cut and lower wheels
for high cut, adjust cutting height to suit
your requirements. Medium position is
best for most lawns.
• To change cutting height, squeeze adjuster lever toward wheel. Move wheel
up or down to suit your requirements. Be
sure all wheels are in the same setting.
NOTE: Adjuster is properly positioned
when plate tab inserts into hole in lever.
Also, 9-position adjusters (if so equipped)
allow lever to be positioned between the
plate tabs.

DRIVE CONTROL
• Self-propelling is controlled by holding the operator presence control bar
down to the handle and pulling the drive
control bar up to the handle. The closer
to the handle the bar is pulled, the faster
the unit will travel.
• Forward motion will stop when either the
operator presence control bar or drive
control bar are released. To stop forward
motion without stopping engine, release
the drive control bar only. Hold operator
presence control bar down against handle
to continue mowing without self-propelling.
NOTE: If after releasing the drive control
the mower will not roll backwards, push
the mower forward slightly to disengage
drive wheels.
• To keep drive control engaged when
turning corners, push down on the
handle to lift the front wheels off the
ground while turning lawn mower.

LEVER BACKWARD
TO LOWER MOWER

Plate tab

LEVER FORWARD TO RAISE MOWER

Lever

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.
Pivot )ins

Rear

,Open mulcher door

Grass
catcher
handle

Catcher frame hook

SIDE DISCHARGING
• Rear door must be closed.
• Open mulcher door and install discharge deflector under door 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.

Discharge

FOR SIDE DISCHARGING 1. Rear door closed.
_ Discharge deflector installed.
CAUTION: Do not run your lawn mower
without rear door closed, clipping deflector
or approved grass catcher in place. Never
attempt to operate the lawn mower with
the rear door removed or propped open.

TO EMPTY

GRASS

CATCHER

1. Lift up on grass catcher using the
frame handle.
2. Remove grass catcher with clippings
from under lawn mower handle.
3. Empty clippings from bag using both
frame handle and bag handle.
NOTE: Do not drag the bag when emptying; it will cause unnecessary wear.

Grass
catcher
frame
handle

Bag
handle

BEFORE

STARTING

ENGINE

ADD OIL
Your lawnmower is shipped without oil in
the engine. For type and grade of oil to
use, see "ENGINE" in the Maintenance
section of this manual.
CAUTION: DO NOT overfill engine with
oil, or it will smoke heavily from the muffler
on startup.
1. Be sure lawnmower is level.
2. Remove oil dipstick from oil fill spout.
3. You receive a container of oil with the
unit. Slowly pour the entire container
down the oil fill spout into the engine.
NOTE: Initial oil fill requires only 18 oz.
due to residual oil in engine from the
manufacturers 100% quality testing. When
changing oil you may need 20 oz.
4. Insert and tighten dipstick.
IMPORTANT:
• 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. See "TO
CHANGE ENGINE OIL:' in the Maintenance section of this manual.
ATTACH FUEL CAP CARTRIDGE

NOTE: Do not remove the silver foil seal
on the side of cartridge that snaps into
fuel cap.
2. Grasp the white peel tab and pull to
remove the entire seal.
3. Screw fuel cap onto fuel tank after filling tank with gasoline.
Replace cartridge when empty (about
once a season). Check preserver level
visually.
• 1_DANGER: Cartridge fluid is HARMFUL
OR FATAL IF SWALLOWED. Avoid contact
to eyes, skin, or clothing. Do not take
internally. Do not inhale fluid vapor. Keep
out of reach of children. If swallowed, call
a physician immediately.
ADD GASOLINE
• Fill fuel tank to bottom of tank filler neck.
Do not overfill. Use fresh, clean, regular
unleaded gasoline with a minimum of
87 octane. Do not mix oil with gasoline.
Purchase fuel in quantities that can be
used within 30 days to assure fuel freshBess.
CAUTION: Wipe off any spilled oil or
fuel. Do not store, spill or use gasoline
near an open flame.
CAUTION: Alcohol blended fuels
(called gasohol or using ethanol or methanol) can attract moisture which leads to
separation and formation of acids during
storage. Acidic gas can damage the fuel
system of an engine while in storage. To
avoid engine problems, the fuel system
should be emptied before storage of 30
days or longer. Empty 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.
/ Engine oil cap
Primer

Gasoline
filler cap

Your mower is equipped with a special
FRESH START fuel cap and continuous
fuel preserver cartridge. See the information and instructions packed with the
TO STOP ENGINE
FRESH STARTTMcartridge.
• To stop engine, release operator pres1. Snap cartridge into bottom of fuel cap. 10 ence control bar.
TM

TO START

MULCHING

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.
NOTE: In cooler weather it may be necessary to repeat priming steps. In warmer
weather over priming may cause flooding
and engine will not start. If you do flood
engine, wait a few minutes before attempting to start and do not repeat priming
steps.
MOWING

MOWING TIPS

IMPORTANT: For best performance,
keep mower housing free of built-up
grass and trash. See "CLEANING" in the
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 this will provide the best recutting action of the blades.
• Avoid cutting your lawn when it is wet.
Wet grass tends to form clumps and
interferes with the mulching action. The
best time to mow your lawn is the early
afternoon. At this time the grass has
dried, yet the newly cut area will not be
exposed to direct sunlight.
• 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 leaving
clumps of mulched grass. For extremely
heavy grass, reduce your width of cut
by overlapping previously cut path and
mow slowly.

TIPS

• Under certain conditions, such as very
tall grass, it may be necessary to raise
the height of cut to reduce pushing
effort and to keep from overloading the
engine and leaving clumps of grass clippings. It may also be necessary to reduce ground speed and/or run the lawn
mower over the area a second time.
• For extremely heavy cutting, reduce the
width of cut by overlapping previously
cut path and mow slowly.
• For better grass bagging and most cutting conditions, the engine speed should
be set in the FAST position.
• 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.

• 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 (perpendicular) to
the first cut path.
• Change your cutting pattern from week
to week. Mow north to south one week
then change to east to west the next
week. This will help prevent matting and
graining of the lawn.

MAINTENANCE

BEFORE
AEACH
PTEREVERY
EVERY EVERY
BEFORE
EACH
10
25HOURS
100

SCHEDULE

USE

Check for Loose Fasteners
_ Clean / Inspect Grass Catcher *
Check Tires

USE

HOURS

ORSEASON

HOURS

STORAGE

_ Check Drive Wheels
Clean Lawn Mower ....
M Clean under Drive Cover ***
D Check Drive Belt / Pulleys ***
_ Check / Sharpen / Replace Blade
R Lubrication
Clean and Recharge Battery **

Check Engine Oil level
E Change Engine Oil

t_,2

Clean Air Filter
Inspect Muffler
_1 Replace Spark Plug
E Replace Air Filter Paper Cartridge
Empty fuel system or add Stabilizer
* (if so equipped)
** Electric-Start

mowers

*** Power-Propelled
mowers
**** Use a scraper
to clean under deck

GENERAL

1
2
3
4
5

- Change more often if operating under a heavy load or in high outdoor temperatures.
- Service more often if operating in dirty or dusty conditions.
- Replace blades more often when mowing in sandy soil.
- Charge 48 hours at end of season.
- And after each 5 hours of use.

RECOMMENDATIONS

LUBRICATION

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 unit as instructed in this manual.
Some adjustments will need to be made
periodically to properly maintain your unit.
At least once a season, check to see if
you should make any of the adjustments
described in the Service and Adjustments
section of this manual.
• At least 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
• Check engine oil level.
• Check for loose fasteners.
LUBRICATION
Keep unit well lubricated
(See "LUBRICATION
CHART').

CHART

Whee,
luster (on
ch wheel)
ine oil
Mulcher
door hinge
pin
(_) Rear door
hinge

(_) Handle bracket mounting pins
_ Spray lubricant
See "ENGINE" in Maintenance section.

IMPORTANT:
Do not oil or grease plastic
wheel bearings.
Viscous lubricants will
attract dust and dirtthatwill shorten the life of
the self-lubricating bearings. If you feel they
must be lubricated, use only a dry, powdered
1 2graphite

type lubricant sparingly.

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.
DRIVE WHEELS
Check front drive wheels each time before
you mow to be sure they move freely.
The wheels not turning freely means trash,
grass cuttings, etc. are in the d rive wheel area
and must be cleaned to free drive wheels.
If necessary to clean the drive wheels, be
sure to clean both front wheels.
1. Remove hubcaps, Iocknuts & washers.
2. Remove wheels from wheel adjusters.
3. Remove any trash or grass cuttings
from inside the dust cover, pinion and/
or drive wheel gear teeth.
4. Put wheels back in place.
NOTE: If after cleaning, the drive wheels
do not turn freely, contact a Sears or other
qualified service center.
BLADE

CARE

For best results, 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 plug.
2. Turn 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 counterclockwise.
5. Remove blade & attaching hardware
(bolt, lock washer & hardened washer).

IMPORTANT: Blade bolt is heat treated.
If bolt needs replacing, replace only with
approved bolt shown in the Repair Parts
section of this manual.
Blade adapter
Key _

Crankshaft
keyway

Blade

Crank
shaft

Blade
bolt
washer

j
\
Trailing edge Blade adapter

TO SHARPEN BLADE
NOTE: We do not recommend sharpening
the 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. If catcher needs replacing, replace only with approved replacement catcher shown in the Repair Parts
section of this manual. Give the lawn
mower model number when ordering.
GEAR CASE

TO REPLACE BLADE
1. Position blade on the blade adapter
•
aligning the two (2) holes in the blade
with the raised lugs on the adapter.
2. Be sure the trailing edge of blade (opposite sharp edge) is up toward the engine.
3. Install the blade bolt with the lock
•
washer and hardened washer into
blade adapter and crankshaft.
4. 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.
13

To keep your drive system working
properly, the gear case and area around
the drive should be kept clean and free
of trash build-up. Clean under the drive
cover twice a season.
The gear case is filled with lubricant to
the proper level at the factory. The only
time the lubricant needs attention is if
service has been performed on the gear
case.
If lubricant is required, use only Elf Multis EP00. Do not substitute.

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.
SAE VISCOSITY GRADES

-20
.30
TEMPERATURE

0
-20

._0
RANGE

0
ANTICIPATED

60
10
BEFORE

80
20
NEXT

100
30

OIL

CHANGE

NOTE: Although multi-viscosity oils
(5W30, 10W30 etc.) improve starting in
cold weather, these multi-viscosity oils will
result in increased oil consumption when
used above 32°E 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 orat least once a year if the mower
is not used for 25 hours in one year.
Check the crankcase oil level before
starting the engine and after each five (5)
hours of continuous use. Tighten oil plug
securely each time you check the oil level.

6. Stop adding oil when you reach the
FULL mark on the dipstick. Wait a
minute to allow oil to settle.
7. Continue adding small amounts of oil,
rechecking the dipstick until oil level
settles at FULL. DO NOT overfill, or
engine will smoke heavily from the
muffler on startup.
8. Always be sure to retighten oil dipstick
before starting engine.
9. Reconnect spark plug wire to spark plug.
AIR FILTER
Your engine will not run properly using a dirty
air filter. Replace paper cartridge every 100
hours of operation or every season, whichever occurs first. Service air cleaner more
often under dusty conditions.
1. Loosen screws and remove cover.
2. Carefully remove cartridge.
3. Clean by gently tapping on a flat surface. If very dirty, replace cartridge.
_CAUTION:
Petroleum solvents, such
as kerosene, are not to be used to clean
cartridge. They may cause deterioration
of the cartridge. Do not oil cartridge. Do
not use pressurized air to clean or dry
cartridge.
4. Install cartridge, then replace cover.

TO CHANGE ENGINE OIL
NOTE: Before tipping lawn mower to drain
oil, empty 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 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.
Base

MUFFLER
Inspect and replace corroded muffler as it
could create a fire hazard and/or damage.

Container

4. Wipe off any spilled oil from lawn
mower or side of engine.
5. Slowly pour oil down the oil fill spout,
stopping every few ounces to check the
oil level with the dipstick.
14

SPARK PLUG
Replace spark plug at the beginning of
each mowing season or after every 100
hours of operation, whichever occurs
first. Spark plug type and gap setting
are shown in the "PRODUCT SPECIFICATIONS" section of this manual.

CLEANING
• 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.
CLEAN UNDER DRIVE COVER
Clean under drive cover at least twice a
season. Scrape underside of cover with
putty knife or similar tool to remove any
build-up of trash or grass on underside of
drive cover.

IMPORTANT: For best performance, keep
mower housing free of built-grass and
trash. Clean the underside of your mower
after each use.
/ICAUTION:
Disconnect spark plug wire
from spark plug and place wire where it
cannot come in contact with 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.

_IWARNING:
To avoid serious injury,
before performing any service and
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 wire where it cannot
come in contact with plug.

Drive
cover
Belt keeper

LAWN MOWER
TO ADJUST

PUSH DOWN

CUTTING

See "TO ADJUST

HEIGHT

CUTTING

the Operation section
REAR DEFLECTOR

HEIGHT'

TO ADJUST

The handle can be mounted in a high or
low position. The mounting holes in the
bottom of lower handle are off center for
raising or lowering the handle.
1. Remove upper handle and wire tie(s)
securing cable(s) to lower handle.
2. Remove hairpin cotters from lower
handle bracket mounting pin.
3. Squeeze lower handle in to remove it
from mounting pins.
4. Turn lower handle over to raise or
lower handle.
5. Squeeze lower handle in and position
holes onto mounting pins on handle
bracket.
6. Reassemble upper handle and all
parts removed from lower handle.

of this manual.

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
into the operator mowing position. If the
deflector becomes damaged, it should be
replaced.
TO REMOVE DRIVE BELT
1. Remove drive cover and belt keeper.
2. Remove belt from gearcase pulley by
pushing down on pulley and rolling belt
off it.
3. Turn lawn mower on its side with air
filter and carburetor down.
4. Remove blade and debris shield.
5. Remove belt from engine pulley on
crankshaft.
TO REPLACE DRIVE BELT
1. Install new belt on engine pulley.
2. Reinstall debris shield and blade.
3. Return mower to upright position.
4. Install new belt on gearcase pulley.
5. Reinstall belt keeper and drive cover.
NOTE: Always use factory approved belt
to assure fit and long life.

HANDLE

Mowing
position

-<
i I
i
I

Mowing
position

I
I
I

Nairpin \\_,
\ _
cotte-r "_
_
"__ Handle
Mounting" g_'_-_.__
bracket

_
LOW POSITION

/
/

F'
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Craftsman 917377240 User Manual ROTARY MOWER Manuals And Guides L0403444

CRAFTSMAN Walk Behind Lawnmower, Gas Manual L0403444 CRAFTSMAN Walk Behind Lawnmower, Gas Owner's Manual, CRAFTSMAN Walk Behind Lawnmower, Gas installation guides

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