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Craftsman 917.389260 Owner's Manual page 11

4.0 horsepower 20" rear discharge rotary lawn mower

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PRODUCT
SPECIFICATIONS
MODEL
NUMBER
SERIALNUMBER
DATE OF PURCHASE
GASOLINE
CAPACITY/TYPE:
OIL TYPE (API-SF/SG/SH):
OIL CAPACITY:
SPARK
PLUG (GAP:
.030" I
VALVE CLEARANCE:
SOLID STATE IGNITION
AIR GAP:
BLADE BOLT TORQUE:
917,389260
1.25 QUARTS
UNLEADED
REGULAR
SAE 30 (ABOVE 32°F)
SAE 5W-30
IBELOW
32°F)
20 OZS.
CHAMPION
RJ19LM
OR J19LM
INTAKE:
.004 - .008
EXHAUST:
.004-
.008
.0125 IN.
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
• Disconnect
spark plug wire from spark
plug and place wire where
it cannot
come in contact
with spark plug.
• Turn lawn mower on its side.
Make
sure air filter and carburetor
are up.
• Use a wood block between
blade and
mower
housing
to prevent
blade from
turning
when
removing
blade
bolt.
• Protect
your hands with gloves
and/or
wrap blade with heavy cloth.
• Remove
blade bolt by turning
counter-
clockwise.
• Remove
blade and attaching
hardware
(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 condition to work
properly.
Replace
adapter if damaged.
TO REPLACE
BLADE
• Position the blade adapter on the
engine crankshaft.
Be sure key in
adapter
and crankshaft
keyway are
aligned.
• Position blade on the blade adapter
aligning the two (2) holes in the blade
with the raised lugs on the adapter.
• Be sure the trailing edge of blade
(opposite sharp edge) is up toward the
engine.
• Install the blade bolt with the lock
washer
and hardened
washer into
blade adapter
and crankshaft.
• 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.
11

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