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CUSTO
RESPONSHBILmES
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LAWN MOWER
Always observe safety rules when performing any mainte-
nance_
TIRES
°
Keep tires free of gasoline, oil, or' insect control chemi-
cals 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..
place bent or damaged blades
TO REMOVE BLADE (See Fig. 12)
o
Re-
Disconnect spark plug wire from spark plug and place
wire where it cannot come in contact with spark plug
o
Turn lawn mower on its side.. Make sure air filter and
carburetor are up.
o
Use a wood block between blade and mower housing
to prevent blade from turning when removing blade
bolt.
o
Protect your hands with gloves and/or wrap blade with
heavy cloth.
-
Remove blade bolt by turning counter-clockwise.
Use
a 9/t6" box or open-end wrench..
o
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 (See Fig. 12)
.
Position the blade adapter on the engine crankshaft
Be sure key in adapter and crankshaft
keyway are
aligne&
o
Position blade on the blade adapter aligning the two (2)
holes in the blade with the raised lugs on the adapter.
o
Be sure the trailing edge of blade (opposite sharp
edge) is up toward the engine.
,,
Installthe blade bolt with the lockwasher and hardened
washer into blade adapter and crankshaft
o
Use block of wood between blade and lawn mower
housing and tighten the blade bolt, turning clockwise.
o
The recommended
tightening torque is 35-40 ft.. Ibs.
IMPORTANT: BLADE BOLT IS GRADE 8 HEATTREATED
NOTE: We do not recommend
sharpening
blade - but if
you do, be sure the blade is balanced.
cRANK-
SHAFT &
BLADE
ADAPTER
DETAIL
BLADE
XDAPTER
_L_
"_KEY
TRAILING
EDGE
HARDENED
[_
CRANK-
SHAFT
BLADE
BOLT
=='=
CRANK-
Y
SHAFT
KEYWAY
LOCK WASHER
BLADE ADAPTER
FIG, 12
TO SHARPEN BLADE
Care should be taken to keep the blade balanced_
An
unbalanced blade will cause eventual damage to lawn
mower or engine.
°
The blade can be sharpened with a file or on a grinding
wheel.. Do not attempt to sharpen while on the mower
-
To check blade balance, drive a nail into a beam or
wall.. Leave about one inch of the straight nail ex-
posed. Place center hole of blade over the head of the
nail.
If blade is balanced,
it should remain
in a
horizontal position.. If either end of the blade moves
downward, sharpen the heavy end until the blade is
balanced..
GRASS
CATCHER
• .,,
The grass catcher may be hosed with water, but must
be dry when used..
o
check your grass catcher often for damage or deterio-
ration.
Through
normal use it will wear.
If catcher
needs replacing,
replace only with a manufacturer
approved replacement catcher from Sears. Give the
lawn mower model number when ordering.
12
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