Craftsman 917.377545 Owner's Manual page 12

5 horsepower 22' rear discharge power propelled rotary lawn mower
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IMPORTANT:
Blade bolt is grade 8 heat
treated.
TO SHARPEN
BLADE
NOTE:
We do not recommend
sharpen-
ing 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.
Crank shaft
Blade _
_
keyway
adapter _-_f_
._
Blade Key _
_
washer Hardened
edge
adapter
washer
GRASS CATCHER
• The grass catcher may be hosed with
water, but must be dry when used.
• Check your grass catcher often for
damage or detedoration. Through normal
use it will wear. If catcher needs replacing,
replace only with a manufacturer approved
replacement catcher.
Give the lawn
mower model number when ordering.
DRIVE WHEELS
Check front drive wheels each time before
you mow to be sure they move freely.
The wheels not turning freely means
trash, grass cuttings, etc. are in the drive
wheel area and must be cleaned to free
drive wheels.
If necessary
to clean the drive wheels,
check both front wheels.
• Remove hubcaps,
hairpin cotters and
washers.
• Remove
any trash or grass cuttings
from inside the dust cover,
pinion and/
or drive wheel
gear teeth.
• Put wheels back in place.
• If after cleaning, the drive wheels do
not turn freely,
contact your nearest
authorized
service center.
GEAR
CASE
• To keep your drive system working
properly,
the gear case and area
around
the drive should
be kept clean
and free of trash build-up.
Clean under
the drive cover twice a season.
• The gear case is filled with lubricant
to
the proper level at the factory.
The only
time the lubricant
needs attention
is if
service
has been performed
on the
gear case.
• If lubricant
is required,
use only Texaco
Starplex
Premium
1 Grease,
Part No.
750369.
Do not substitute.
ENGINE
LUBRICATION
Use only high quality detergent oil rated
with API service classification SF, SG or
SH. Select the oil's SAE _,iscosity grade
according to your expected
operating
temperature.
SAE VISCOSITY
GRADES
<]O _
._O*
.10"
20*
TEMPERATURE
R/_NGE ANTICIPATED
BEFORE NEXT OIL CH/_NGE
NOTE:
Although multi-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.
• Remove wheels from wheel adjusters.
12

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