Craftsman 917.388410 User Manual
Owner’s Manual
CRRFTSMRN^
6.75 HORSEPOWER
21" MULTI-CUT
ROTARY LAWN MOWER
Model No.
917.388410
Safety
Assembly
Operation
Maintenance
Español
Repair Parts
CAUTION:
Read and follow all
Safety Rules and Instructions
before operating this equipment
Sears, Roebuck and Co., Hoffman Estates, IL6017^
Visit our Craftsman website:
www.sears.com/craftsman
TABLE OF CONTENTS
Warranty
Safety Rules
Assembly.......................................
Operation.....................................
Maintenance Schedule
Maintenance................................
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2
2
4
6 Troubleshooting...................
10 Repair Parts
10
Product Specifications
Service and Adjustments...
Storage
Parts Ordering
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11
15
WARRANTY
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 workman
ship.
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 Service Center/Department in the United States. This warranty applies only
while this product is in use in the United States.
This Warranty gives you specific legal rights, and you may also have other rights which
vary from state to state.
SEARS, ROEBUCK AND CO., D/817 WA, HOFFMAN ESTATES, ILLINOIS 60179
SAFETY RULES
Safety standards require operator
presence control to minimize the risk of
injury. Your unit is equipped with cuch
controls, do not attempt to defeat the
function of the operator presence controls
under any circumstances.
TRAINING:
• Read this operator’s manual carefully.
Become familiar with the controls and
know how to operate your mower
properly. Learn how to quickly stop
mower.
• Do not allow children to use your
mower. Never allow adults to use
mower without proper instructions.
• Keep the area of operation clear of ail
persons, especially small children and
pets.
• Use mower only as the manufacturer
intended and as described in this
manual.
• Do not operate mower if it has been
dropped or damaged in any manner.
Always have damage repaired before
using your mower.
• Do not use accessory attachments that
are not recommended by the manufac
turer. Use of such attachments may be
hazardous.
• The blade turns when the engine is
running.
PREPARATION:
• Always thoroughly check the area to be
mowed and clear it of all stones, sticks,
wires, bones, and other foreign objects.
These objects will be thrown by the
blade and can cause severe injury.
• Always wear safety glasses or eye
shields when starting and while using
your mower.
• Dress properly. Do not operate mower
when barefoot or wearing open
sandals. Wear only solid shoes with
good traction when mowing,
• Check fuel tank before starting engine.
Do not fill gas tank indoors, when the
engine is running or when the engine is
hot. Allow the engine to cool for several
minutes before filling the gas tank.
Clean off any spilled gasoline before
starting the engine.
• Always make wheel height adjustments
before starting your mower. Never
attempt to do this while the engine is
running.
• Mow only in daylight or good artificial
light.
OPERATION;
• Keep your eyes and mind on your
mower and the area being cut. Do not
let other interests distract you.
• Do not mow wet or slippery grass.
Never run while operating your mower.
Always be sure of your footing - keep a
firm hold on the handles and walk.
• Do not put hands or feet near or under
rotating parts. Keep clear of the
discharge opening at all times.
• Always stop the engine whenever you
leave or are not using your mower, or
before crossing driveways, walks,
roads, and any gravel-covered areas.
• Never direct discharge of material
toward bystanders nor allow anyone
near the mower while you are operating
it.
• Before cleaning, inspecting, or repair
ing your mower, stop the engine and
make absolutely sure the blade and all
moving parts have stopped. Then
disconnect the spark plug wire and
keep it away from the spark plug to
prevent accidental starting.
• Do not continue to run your mower if
you hit a foreign object. Follow the
procedure outlined above, then repair
any damage before restarting and
operating your mower.
• Do not change the governor settings or
overspeed the engine. Engine damage
or personal injury may result.
• Do not operate your mower if it vibrates
abnormally. Excessive vibration is an
indication of damage; stop the engine,
safely check for the cause of vibration
and repair as required.
• Do not run the engine indoors. Exhaust
fumes are dangerous.
• Never cut grass by pulling the mower
towards you. Mow across the face of
slopes, never up and down or you
might lose your footing. Do not mow
excessively steep slopes. Use caution
when operating the mower on uneven
terrain or when changing directions -
maintain good footing.
• Never operate your mower without
proper guards, plates, grass catcher or
other safety devices in place.
MAINTENANCE AND STORAGE:
• Check the blade and the engine
mounting bolts often to be sure they are
tightened properly.
• Check all bolts, nuts and screws at
frequent intervals for proper tightness to
be sure mower is in safe working
condition.
• Keep all safety devices in place and
working.
• To reduce fire hazard, keep the engine
free of grass, leaves or excessive
grease and oil.
• Check grass catcher often for deteriora
tion and wear and replace worn bags.
Use only replacement bags that are
recommended by and comply with
specifications of the manufacturer of
your mower.
• Always keep a sharp blade on your
mower.
• Allow engine to cool before storing in
any enclosure.
• Never store mower with fuel in the tank
inside a building where fumes may
reach an open flame or an ignition
source such as a hot water heater,
space heater, clothes dryer, etc.
Alook for this symbol to point out
important safety precautions. It means
CAUTION!!! BECOME ALERT!!! YOUR
SAFETY IS INVOLVED.
i^CAUTION: Always disconnect spark
plug wire and place wire where it cannot
contact spark plug in order to prevent
accidental starting when setting up,
transporting, adjusting or making repairs.
^WARNING: The engine exhaust from
this product contains chemicals known to
the State of California to cause cancer,
birth defects, or other reproductive harm.
ACCESSORIES
These accessories were available when this lawn mower was produced. They are not
shipped writh 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
MUFFLERS AIR FILTERS
BELTS BLADES
BLADE ADAPTERS
ASSEMBLY
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.
Your new lawn mower has been as
sembled at the factory with the exception of
those parts left unassembled for shipping
purposes. 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 neces
sary to ensure proper tightness. All parts
such as nuts, washers, bolts, etc., neces
sary to complete the assembly have been
placed in the parts bag.
SPARK PLUGS
A
WHEELS ENGINE OIL
TO REMOVE LAWN MOWER FROM
CARTON
• Remove loose parts included with
mower.
• Cut down two end comers of carton and
lay end panel down flat.
• Remove all packing materials except
padding between upper and lower
handle and padding holding operator
presence control bar to upper handle.
• Roll lawn mower out of carton and check
carton thoroughly for additional loose
parts.
HOW TO SET UP YOUR LAWN
MOWER
TO UNFOLD HANDLE
IMPORTANT: Unfold handle carefully so
as not to pinch or damage control cables.
• Raise lower handle section to operating
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.
• Remove protective padding, raise
upper handle section into place on
lower handle and tighten both handle
knobs.
• Remove any packing material from
around control bar.
• Your handles may be adjusted for your
mowing comfort. Refer to Service and
Adjustments section of this manual.
Operator
presence
control bar
Upper
handle
Lift up
Lower
handle
Mowing
positton
3-Position
handle
adjustment
bracket
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.
OPERATION
KNOW YOUR LAWN MOWER
READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR LAWN
MOWER. Compare the illustrations with your lawn mower to familiarize yourself v\^h the
location of various controls and adjustments. Save this memual 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
OR WARNING ON OFF
Starter hand!
Handle knob
Grass catche
FAST SLOW CHOKE FUEL
Operator presence control
bar
Engine zone control cable
OIL DANGER, KEEP HANDS
AND FEET AWAY
Gasoline filler cap
Primer
Air fiiter
Engine oil cap
with dipstick
Mulcher door
Lawn mower housing
IMPORTANT: This lawn mower is shipped
WITHOUT OIL OR GASOLINE in the
engine.
Wheel adjuster
(on each wheel)
MEETS CPSC SAFETY REQUIREMENTS
Sears rotaiy 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.
Primer - pumps additional fuel from the
carburetor to the cylinder for use when
starting a cold engine.
__________________
Starter Handle - used for starting the engine.
J The operation of any tawn mower
foreign objects thrown
mmHI nto the eyes, which can result 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 USE YOUR LAWN MOWER
ENGINE SPEED CONTROL
The engine speed was set at the factory for
optimum performance. Speed is not adjust
able.
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 require
ments. 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.
Lower Wheels for High Cut
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.
SIDE DISCHARGING
• Rear door must be closed.
• Open mulcher door and install discharge
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 -
• Rear door closed.
• Mulcher door closed.
FOR REAR BAGGING-
• Grass catcher installed.
• Mulcher door closed.
FOR SIDE DISCHARGING -
• Rear door closed.
• Side discharge deflector installed.
^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.
TO CONVERT MOWER
Your lawn mower was shipped ready to be
used as a mulcher. To convert to bagging or
discharging:
Mulcher
door
open
problems, the fuel system should be
emptied before storage of 30 days or
longer. Drain the fuel tank, start the
engine and let it run until fuel lines and
carburetor are empty. Use fresh fuel next
season. See Storage Instructions for
additional information. Never use engine
or carburetor cleaner products in fuel tank
or permanent damage may occur.
^CAUTION: Rll 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.
BEFORE STARTING ENGINE
on.
Your lawn mower is shipped without oil in the
engine.
• Be sure mower is level and area around oil
fill is clean.
• Remove engine oil cap and fill to the full
tine on the dipstick.
NOTE: Allow oil to settle down into
engine for accurate dipstick reading.
• Engine holds 20 ozs. of oil. For type and
grade of oil to use, see “ENGINE" in
Maintenance section of this manual.
• Pour oil slowly. Do not over fill.
• Check oil level before each use. Add oil if
needed. Rll to full line on dipstidc
• To read proper level, tighten engine oil cap
each time.
• Reinstall engine oil cap and tighten.
• 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.
Engine oil
cap
Gasoline filler
cap
TO START ENGINE
• 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.
• Hold operator presence control bar down
to the handle and pull starter handle
quickly. Do not allow starter rope to snap
tock.
• To stop engine, release operator presence
control bar.
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.
ADDGASOUNE
• Rll fuel tank. 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
freshness.
^WARNING: Experience indicates that
alcohol blended fuels (called gasohol or
using ethanol or methanol) can attract
moisture which leads to separation and
formation of acids during storage. Acidic
gas can damage the fuel system of an
engine while in storage. To avoid engine
8
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