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Craftsman 486.243293 Owner's Manual page 15

42-inch universal tow behind power mower

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CLEANmNG THE MOWER
CAUTION:
Disconnect spark plug
wire from spark plug before working on
underside of mower.
Clean the underside of your mower to remove
buildup of grass clippings.
.
Clean any gasoline, oil, or foreign matter from
engine, painted surfaces and wheels.
We do not recommend using a garden hose to clean
mower unless the electrical system, muffler, air filter
and carburetor are covered to keep water out. Water
in engine can result in shortening engine life.
BLADE
CARE
For best results, mower blade must be kept sharp.
The blades can be sharpened with a few strokes
of a file or on a grinding wheel. Do not attempt to
sharpen blades while blades are on mower.
To remove blade for sharpening, use wooden block
to hold blade while removing the blade mounting nut.
The nuts have right hand threads. (See Fig. 7.)
.
When grinding, take care to maintain blade balance.
Check blade for proper balance before reinstalling to
moweE
.
To check and balance blade use a balancing
machine or, fixture as shown in figure 8. File material
off heavier end of blade until it is balanced.
_CENTER
THE
BLADE'S
CENTER
HOLE
;d, ON NAIL.
DO NOT
LET
BLADE
TOUCH
_BENCH.
A BALANCED
BLADE
WILL
_REMAIN
LEVEL,
THIN
FINISHING
NAnL
LUBRICATED
WORKBENCH
WITH
DROP
OF O_L
FIG. 8
To assure satisfactory operation, we recommend that
you discard old blades and replace them with new ones
before the start of each mowing season.
NOTE:
Check nuts and blades occasionally to make
sure nuts are tight.
CAUTION:
Shut off mower engine and
t
remove spark plug wire from spark plug
1
before making any adjustments or repairs to
mower.
CAUTION:
Do not handle mower blades
with bare hands. Careless or improper
handling may result in serious injury.
WOOD BLOCK
BLADE
FiG. 7
15

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