Craftsman 917.387402 - Manual (Page 12)

IMPORTANT; Blade bolt is grade 8 heat
treated.
TO SHARPEN BLADE
NOTE: We do not recommend sharpening
blade - but if you do, be sure the blade is
balanced.
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 exposed. 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.
Blade Crank shaft
adapter ^_________ keyway
Blade,
Blade
Bolt /
\ \ \ Crank
Lockwasher Hardened ' Blade shaft
weisher Trailing adapter
GRASS CATCHER
• The grass catcher may be hosed with
water, but must be dry when used.
• Check your grass catcher often for damage
or deterioration. Through normal use it will
wear. If cateher needs replacing, replace
only with a manufacturer approved
replacement catcher. Give the lawn mower
rTKxJel number when ordering.
ENGINE
LUBRICATION
Use only high quality detergent oil rated
with API service classification SF, SH or
SG. Select the oil's SAE viscosity grade
according to your expected operating
temperature.
SAC VISCOSrTY GRADES
I I [
30* 93T «r
TEMPERATURE RANGE ANTICtPATED BEFORE NEXT OH, CHANGE
NOTE: Although mult*—^viscosity oils
(5W30,10W30 etc.) improve starting in
cold weather, these multi—viscosity oils
will result in increased oil consumption
when used above 32®F. Check your
engine oil level more frequently to avoid
possible engine damage from running low
on oil.
Change the oil after every 25 hours of
operation or at least once a year if the
lawn mower is not used for 25 hours in
one year.
Check the crankcase oil level before
starting the engine and after each five (5)
hours of continuous use. Tighten oil plug
securely each time you check the oil level.
TO CHANGE ENGINE OIL
NOTE; Before tipping lawn mower to drain
oil, drain fuel tank by running engine until
fuel tank is empty.
• Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.
• Remove engine oil cap; lay aside on a
dean surface.
• Tip lawn mower on its side as shown
and drain oil into a suitable container.
Rock lawn mower back and forth to
remove any oil trapped inside of engine.
• Wipe off any spilled oil on lawn mower
and on side of engine.
• Fill engine with oil. Fill only to the “FULL”
line on the dipstick. DO NOT OVER
FILL
• Replace engine oil cap.
• Reconnect spark plug wire to spark
Container
Your engine will not mn properly and may
be damaged by using a dirty air filter.
Replace the air filter every year, more
often if you mow in very dusty, dirty
conditions.
TO CLEAN AIR FILTER
• Loosen screw and tilt cover to remove.
• Carefully remove cartridge.
• Clean by gently tapping on a flat
surface. If very dirty, replace cartridge.
ACAUTION: Petroleum solvents, such as
kerosene, are not to be used to clean
cartridge. They may cause deterioration of
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