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LAWN MOWER
Always observe safety rules when perform-
ing any main te 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. Re place bent or dam aged blades.
TO REPLACE BLADE
• Turn lawn mower on it's side. See engine
manual for proper direction of turning
over the engine.
• Use a wood block between blade and
mower housing to prevent blade from
turning when re mov ing blade bolt.
• Protect your hands with gloves and/or
wrap blade with heavy cloth.
• Remove blade bolt, lock washer and fl at
washer.
• Remove blade and blade adapter.
• In spect the key in side blade adapt er.
Re place adapt er if damaged.
IMPORTANT: Blade bolt is grade 8 heat
treated.
• In stall new or sharp ened blade with
trailing edge up toward the en gine.
• Position blade on blade adapter. Align
the two (2) holes in blade with raised
lugs of adapter.
• Reassemble blade bolt, lock washer
and fl at washer into blade adapter and
crankshaft in exact order as shown.
• Position block of wood between blade
and mower housing.
• Tighten blade bolt securely. Rec om -
mended tightening torque is 35-40 ft. lbs.
NOTE: We do not recommend sharpening
the blade - but if you do, be sure the blade
is balanced.
Blade adapter
Key
Lockwasher
Blade
Blade
Hardened
bolt
Trailing edge
washer
TO SHARPEN BLADE
Care should be taken to keep the blade
balanced. An unbalanced blade will cause
excessive vibration and even tual damage
to lawn mower and engine.
• The blade can be sharpened with a fi le
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 exposed. Place center
hole of blade over the head of the nail. If
blade is bal anced, it should remain in a
hor i zon tal position. If either end of the
blade moves downward, sharpen the
heavy end until the blade is balanced.
GRASS CATCHER (IF SO EQUIPPED)
Grass catcher may be hosed with water
but must be dry when used.
CAUTION: Under nor mal usage, the
catch er material is subject to de te ri o ra tion
and wear and should therefore be checked
to ensure compliance with origi nal
manufacturer spec i fi ca tions.
ENGINE
Read the maintenance section of your
engine manual.
LUBRICATION
Change the oil after the fi rst two hours of
operation and every 25 hours there af ter or
at least once a year if the lawn mower is
not used for 25 hours in one year. Refer to
engine manual.
TO CHANGE ENGINE OIL
(SEE ENGINE MANUAL)
• Be sure mower is on a level surface.
• Oil will drain more freely when warm.
• Catch oil in a suitable container.
• For engines without dipstick, re move
bottom oil drain plug.
• For engines with oil fi ll cap/dipstick,
Crankshaft
keyway
remove bottom drain plug or remove en-
gine oil cap and turn mower on its side.
• After oil has drained completely, re place
oil drain plug and tighten se cure ly.
• Refi ll engine with oil. Pour slowly. Do
not overfi ll.
• Fill to top of slot inside of fi ller hole or
to "FULL" line on dipstick on models so
equipped. Keep oil at proper level.
Crank
shaft
Blade adapter
20
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