Product Specifications; Blade Care - Craftsman 917.388220 Owner's Manual

PRODUCT SPECIFICATIONS
MODEL NUMBER 917.388220
SERIAL NUMBER
DATE OF PURCHASE
HORSEPOWER: 4.5
DISPLACEMENT: 11.5 CU. IN.
GASOLINE CAPACITY/TYPE: 1.5 QUARTS
UNLEADED REGULAR
OIL TYPE (API-SF/SG/SH): SAE 30 (ABOVE 32°1:)
SAE 5W-30 (BELOW 32°1=)
OIL CAPACITY: 20 OZS.
SPARK PLUG(GAP: .030") "CHAMPION RJ19LM OR J19LM
VALVECLEARANCE: INTAKE: .004 - .008
EXHAUST: .004 - .008
SOLID STATE IGNITION
AIR GAP: .0125 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 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
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
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
tuming 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.
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