Specifications; Lawn Mower - Craftsman 917.377911 Owner's Manual

6.75 horsepower 21" multi-cut power propelled rotary lawn mower
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PRODUCT
SPECIFICATIONS
MODEL
NUMBER
917.377911
SERIAL
NUMBER
DATE OF PURCHASE
HORSEPOWER:
GASOLINE
CAPACITY/TYPE:
OILTYPE
(API-SF/SG/SH):
OIL CAPACITY:
SPARK
PLUG(GAP:
.030")
VALVE CLEARANCE:
SOLID STATE IGNITION
t_lR GAP:
.0125 IN.
BLADE BOLT TORQUE:
35-40 FT. LBS.
6.75
1.25 QUARTS
UNLEADED
REGULAR
SAE 30 (ABOVE 32°F)
SAE 5W-30
(BELOW
32°F)
20 OZS.
CHAMPION
RJ19LM
or J19LM
INTAKE:
.004 - .008
EXHAUST:
.004 - .008
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 fTee 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 inthe
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
HEATTREATED.
12

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