Download Print this page

Maintenance - Craftsman 917.379810 Owner's Manual

6.75 horsepower 21" multi-cut power propelled rotary lawn mower

Advertisement

Available languages

Available languages

3RODUCT
SPECIFICATIONS
;ERIAL NUMBER:
DATE OF PURCHASE:
SASOLINE CAPACITY/TYPE:
1.5 QUARTS (UNLEADED REGULAR)
DILTYPE (API-SF-SJ):
SAE 30 (ABOVE 32°F); SAE 5W-30 (BELOW 32°F
)IL CAPACITY:
20 OUNCES
SPARK PLUG (GAP: .045")
CHAMPION RJ19LM4
BLADE BOLT TORQUE:
35-40 FT. LBS.
, The model and sedal numbers will be found on a decal attached to the rear of the
lawn mower housing. Record beth serial number and date of purchase in the space
provided above.
LAWNMOWER
Always observe safety misswhenperforming
any maintenance.
"nRES
• Keeptires freeofgasoline, oil,or insect
control chemicals w hichcanharmrubber.
• Avoid stumps, stones, dsap rids, s harp
objects a ndotherhazards thatmay cause
tire damage.
BLADE CARE
Forbest results, m owerblademustbe
kept sharp. Replacebentor damaged
blades.
TO REMOVE BLADE
1. Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.
2. Turn lawn mower on its side. Make
sure air filter and carburetor are up.
3. Use a wood block between blade and
mower housing to prevent blade from
tuming when removing blade bolt.
NOTE: Protect your hands with gloves
and/or wrap blade with heavy cloth.
4. Remove blade belt by turning counter-
clockwise.
5. Remove blade and attaching hard-
ware (bolt, lock washer and hardened
washer).
NOTE: Remove the blade adapter and
chec_ the key inside hub of blade adapter.
The key must be in good condition to work
properly. Replace adapter ff damaged.
TO REPLACE BLADE
1. Position the blade adapter on the
engine crankshaft. Be sure key in
adapter and crankshaft keyway are
aligned.
2. Position blade on the blade adapter
aligning the two (2) holes in the blade
with the raised lugs on the adapter.
3. Be sure the trailing edge of blade
(opposite sharp edge) is up toward the
engine.
4. Install the blade belt with the lock
washer and hardened washer into
blade adapter and crankshaft.
5. Use block of wood between blade and
lawn mower housing and tighten the
blade belt, turning clockwise.
• The recommended tightening torque is
35-40 ft. Ibs.
IMPORTANT: Blade bolt is grade 8 heat
treated.
Crankshaft
Key_
/ keyway
Blade
bolt
shaft
washer
Trailing edge
Blade adapter
12

Advertisement

loading