Sears 917.383223 - Manual (Page 11)

AAAINTENANCE
GENERAL RECOMMENDATION
Ш№ПШ
» Once a yeor you should replace the Spark Plug^
Air Filter and check Blade for wear. A new Spark
Plug and Air Filter assures proper air-fuel mix­
ture and helps your engine run better and last
longer.
• You should check all fasteners and be sure they
are tight.
• Follow the Service Recommendation Schedule on
page 15.
LAWN MOWER
BIADE/BIADE ADAPTER CARE
Your lawn mower will work better with a sharp
}|ode.
CAUTION: DISCONNECT SPARK PLUG WIRE
FROM SPARK PLUG AND PUCE WIRE WHERE
IT CANNOT COME IN CONTACT WITH THE SPARK
PLUG.
TO REMOVE BLADE:
® Turn lawn mower on its side. Make sure Air Filter
and Carburetor are up.
® Use block of wood between Blade and Lawn
Mower Housing to prevent Blade from turning
when removing the Blade Bolt,
® Protect your hands with gloves and/or wrap
Blade with heavy cloth.
» Remove Blade Bolt by turning counter-clockwise.
Use a 9/16" box or open-end wrench,
• Remove Blade and attaching hardware (Bolt,
Lockwasher and Hardened Washer) {See Fig. 9).
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:
*>
Position the Blade Adapter on the Engine
Crankshaft. Be sure Key in Adapter and Keyway
in Crankshaft are aligned.
• Position Blade on to the Blade Adapter aligning
the two (2) holes in the Blade with the raised Lugs
on the Adapter.
NOTE: Be sure tne word TOP {stamped on the Blade)
is toward the engine {See Fig, 9).
• Install the Blade Bolt with the Lockwasher and
Hardened Washer into Blade Adapter and
Crankshaft (See Fig. 9).
• Use block of wood between Blade and Lawn
Mower Housing and tighten the Blade Bolt, turn­
ing clockwise.
The recommended tightening torque is 35-40 ft.
lbs.
Torque wrenches are available at most Sears
stores and through the catalog.
A CAUTION: A LOOSE RUDE CAN BE DANGEROUS
AND MAY MAKE THE ENGINE HARD TO START.
Use only a Sears authorized replacement Blade to
get the best cutting results.
NOTE: We do not recommend sharpening Blade - but
if you do, be sure the Blade is balanced.
TO SHARPEN BLADE:
« The Blade can be sharpened with a file or on a
grinding wheel. Do not attempt to sharpen while
on the lawn mower.
« Care should be taken to keep the Blade balanc­
ed. An unbalanced Blade will cause excessive
vibration when running and eventual damage to
lawn mower or engine.
e To check Blade balance, drive a nail into a beam
or wail. Leave about one inch of the straight nail
exposed. Place center hole of Blade over the head
of the nail, if Blade is balanced, if should remain
in a horizontal position. If either end of the Blade
moves
downward. Blade is not balanced.
Sharpen the heavy end until the Blade is
bolanced.
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
manufacturer approved replacement Catcher
from Sears. Give the lawn mower model number
when ordering.
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