To Sharpen Blade; Drive Wheels - Craftsman 37763 Owner's Manual

NOTE: We do notrecommend shaq_ning
blade - butif youdo, be surethebladeis
balanced.
TO SHARPEN BLADE
Care should be taken to keep the blade
balanced. An unbalanced blade wiUeause
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 nagexposed. Place center hole of
blade over the head of the nail. If blade is
balanced, itshould remain in a horizontal
position, if either end of thQblade moves
downward, sharpen the heavy end unblthe
blade is balanced.
Key
Blade,
Blade
bolt
Blade Crank-
adaptor shaft
keyway
• Lock
washer Crank-
Hardened Blade
washer Trailing shaft
edge adaptor
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.
DRIVE WHEELS
Check rear drive wheels each time you
mow to be sure they move freely. The
wheels not tuming freely means trash,
grass cuttings, etc., may be inside the
drive wheel and dust cover area and must
be cleaned out to free drive wheels.
If necessary to clean the drive wheels,
check both rear wheels.
• Remove hubcaps and Iocknuts.
* Remove wheels from wheel adjuster
axles.
• Remove any trash or grass cuttings from
inside the dust cover, pinion and/or drive
wheel gear teeth.
12
• The pinion gear must be installed with
the left gear on the left side and with the
right gear on the right side, from an
operator's view.
• The pinion gear is stamped with an "L"
(left) or "R" (right) on the inside. If
installed incorrectly, the drive system will
not work.
• Place wheels back on adjuster axles.
• Replace Iocknuts and hubcaps.
NOTE: Pinions and drive pawls should be
cleaned and lubricated with grease
approximately every 25 hours or once a
year.
LocknutWash_ ^ o"_
Drive pin
Dust cover
Pinion
E-dng
ENGINE _.
LUBRICATION
Use only high quarry detergent oil rated with
AP! service classificationSF, SG or SH.
Select the oil'sSAE viscositygrade according
to your expected operating temperature.
SAE VISCOSITY GRADES
4 I,
=IF -20" 0" 30" 32" 40" 60" 80° 100"
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE
NOTE: Althoughmulti-viscosityoils(5W30,
10W30 etc.) improve starting in cold weather,
these multi-viscosity oilswillresult in increased
oil consumption when used_abo-Ve32°F..
Check your engine oil level more frequently to
avoid possibleengine damage from running
low on o=1.
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
continuoususe. Tighten oil plug securely each
time you check the oil level.