PRODUCTSPECIFICATIONS

SERIAL NUMBER

 

 

DATE OF PURCHASE

 

 

GASOLINE CAPACITY/TYPE:

1.6 QUARTS

 

UNLEADED

REGULAR

OILTYPE (API-SF-SJ):

SAE 30 (ABOVE 32°F)

 

SAE 5W-30

(BELOW 32°F)

31L CAPACITY:

20 OZS.

 

SPARK PLUG(GAP: .030")

CHAMPION

RESISTOR TYPE RC12YC

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

 

 

 

 

 

 

 

TO REPLACE BLADE

 

 

 

Always observe safety rules when

 

1.

Position

the

blade

adapter on the

performing

any

maintenance.

 

 

 

 

engine

crankshaft.

Be sure key

in

TIRES

 

 

 

 

 

 

 

 

 

 

 

adapter

and

crankshaft

keyway

are

Keep tires free of gasoline, oil, or insect

 

aligned.

 

 

 

 

 

2.

Position

blade on

the blade adapter

control

chemicals which can

harm

 

rubber.

 

 

 

 

 

 

 

 

 

 

aligning the two (2) holes in the blade

 

 

 

 

 

 

 

 

 

 

with the raised lugs on the adapter.

• Avoid stumps, stones, deep ruts, sharp

 

3.

Be

sure the

trailing

edge of blade

objects and other hazards that may

 

(opposite sharp edge) is up toward

cause

tire

damage.

 

 

 

 

 

 

 

 

 

 

 

 

the engine.

 

 

 

 

BLADE

CARE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.

Install the blade bolt with the lock

For best results, mower blade

must be

 

washer

and

hardened

washer into

kept sharp.

 

Replace bent

or damaged

 

blade

adapter and

crankshaft.

 

blades.

 

 

 

 

 

 

 

 

 

 

5.

Use

block of wood

between blade and

TO REMOVE

BLADE

 

 

 

 

 

 

lawn mower housing and tighten the

1. Disconnect spark plug wire from spark

 

blade

bolt, turning

clockwise.

 

• The recommended tightening torque is

plug and place wire where it cannot

 

35-40 ft. Ibs.

 

 

 

 

come in contact with spark plug.

 

 

 

 

 

 

 

IMPORTANT:

Blade bolt is grade 8 heat

2. Turn lawn mower on its side. Make

treated.

 

 

 

 

 

 

sure air filter and carburetor are up.

 

 

 

 

 

 

TO SHARPEN

BLADE

 

 

3. Use a wood

block

between

blade

and

 

 

mower

housing

to prevent

blade

from

NOTE:

We do not recommend sharpen-

turning

when

removing

blade

bolt.

ing blade - but if you do, be sure the

NOTE;

Protect

your hands

with gloves

blade

is balanced.

 

 

 

and/or wrap blade with heavy

cloth.

 

Care

should be taken to keep the blade

4. Remove

blade

bolt

by

turning

counter-

balanced.

An unbalanced

blade will

clockwise.

 

 

 

 

 

 

 

 

cause eventual damage to lawn mower

5. Remove

blade

and

attaching

hard-

or engine.

 

 

 

 

 

ware

(bolt, lock washer

and hardened

The blade can be sharpened with a file

washer).

 

 

 

 

 

 

 

 

 

or on a grinding wheel. Do not attempt

NOTE:

Remove

the blade

adapter and

 

to sharpen while on the

mower.

 

check the key inside hub of blade

 

 

 

 

 

 

 

 

 

 

 

adapter. The key must be in good condi- tion to work properly. Replace adapter if damaged.

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Craftsman 917.37945 owner manual 31L Capacity, Lawn Mower, Tires, Blade Care