Craftsman 917.377521 Owner's Manual page 11

PRODUCT SPEC FUCAT ONS
MODEL NUMBER 9"t 7.377521
SERIAL NUMBER
DATE OF PURCHASE
HORSEPOWER: 5°0
DISPLACEMENT: 11.5 CUr iN.
GASOLINE CAPACITY/TYPE: 1.6 QUARTS
UNLEADED REGULAR
OIL TYPE (AP1-SF/SG/SH): SAE 30 (ABOVE 32°F)
SAE 5W-30 (BELOW 32°F)
OIL CAPACITY: 20 OZSo
SPARK PLUG(GAP: _030") CHAMPION RJ19LM OR J19LM
VALVECLEARANCE: INTAKE: .005"
EXHAUST: .007"
SOLID STATE IGNITION
AIR GAP: .010 IN.
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 housingoRecord both serial number and date of purchase in space
provided above.
LAWN MOWER
Always observe safety rules when performing
any maintenance°
TIRES
o 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
o 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
tire damage,
BLADE CARE
For best results, mower blade must be kept
sharp. Replace bent or damaged blades.
TO REMOVE BLADE
o Disconnect spark plug wire from spark plug
and place wire where it cannot come in
contact with spark plug_
o Turn lawn mower on its side. Make sure air
filter and carburetor are Upo
o Use a wood block between blade and
mower housing to prevent blade from
turning when removing blade bolt.
o Protect your hands with gloves and/or wrap
blade with heavy cloth°
,, Remove blade bolt by turning counter-
clockwise. Use a 9/16" box or open-end
wrench°
° Position the blade adapter on the engine
crankshaft° Be sure key in adapter and
crankshaft keyway are atigned_
o Position blade on the blade adapter aligning
the two (2) holes in the blade with the raised
lugs on the adapter.
o Be sure the trailing edge of blade (opposite
sharp edge) is up toward the engine.
o 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.
IMPORTAbR': Blade bolt is grade 8 heat
treated.
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