Craftsman 917.38741 owner manual Product, Specifications, Lawn Mower, Blade Care

Models: 917.38741

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PRODUCT

PRODUCT

SPECIFICATIONS

 

 

 

SERIAL NUMBER

 

 

 

 

 

DATE OF PURCHASE

 

 

 

 

GASOLINE

CAPACITY/TYPE:

1.25

QUARTS

 

 

 

 

UNLEADED

REGULAR

OILTYPE

(API-SF/SG/SH):

SAE

30 (ABOVE 32°F)

 

 

 

 

SAE 5W-30 (BELOW 32°F)

OIL CAPACITY:

 

20 OZS.

 

 

SPARK PLUG(GAP:

.030")

CHAMPION

RJ19LM

OR J 19LM

VALVECLEARANCE:

 

 

 

 

 

 

 

 

INTAKE:

.004

- .008

 

 

 

EXHAUST:

.004

- .008

SOLID STATE IGNITION

 

 

 

 

AIR GAP:

 

 

.0125

IN.

 

 

BLADE BOLTTORQUE:

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.

IMPORTANT: Blade bolt is grade 8 heat treated.

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Craftsman 917.38741 owner manual Product, Specifications, Lawn Mower, Blade Care