Craftsman 917387256 rotary lawn mower

User Manual - Page 10

For 917387256.

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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 Crankshaft
adapter keyway
Key
Blade
Blade
bolt
shaft
washer Hardened Blade
washer Trailing adapter
: edge
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 catcher needs
replacing, replace only with a manufac-
turer approved replacement catcher.
Give the lawn mower model number
when ordering.
ENGINE
LUBRICATION
Use only high qualitydetergent oil rated with
API service classifP..ationSF, SG or SH.
Select the oil'sSAE viscositygrade according
to your expected operating temperature.
SAIEVISCOSITY GRADES
NOTE: Although multi-viscosityoils (5W30,
10W30 etc.) improve starting in coldweather,
these multi-viscosity oilswill resultin increased
oilconsumptionwhen used above 32°F.
Check your engine oillevel more fr_uently to
avoid possibleengine 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 oillevel before starting
the engine and aftereach five (5) hours of
continuoususe. 5ghten oil plug securelyeach
time you check the oillevel.
TO CHANGE ENGINE OIL
Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.
Be sure lawn mower is on level surface.
Oil will drain more freely when warm.
Catch oil in a suitable container.
Remove bottom oil drain plug.
After oil has drained completely, replace
oil drain plug and tighten securely.
Refill engine with oil. Pour slowly. Do
not over fill.
Fill to top of slot inside of filler hole.
Reconnect spark plug wire to spark
plug.
Drain plug
AIR FILTER
Your engine will not run 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. Do not wash air filter.
TO CHANGE AIR FILTER
Remove the air filter by turning counter-
clockwise to the stop and pull away from
collar.
Remove filter from inside of cover.
10
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