Craftsman 917.37841 Lawn Mower User Manual


 
Bladeadapter
" Crankshaft
Key._ _ keyway
Lockwasher_ __
! _11
Blade
crank
_--- shaft
bolt Hardened _-Blade
washer Trailingedge 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 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.
1. Remove hubcaps, hairpin cotters and
washers.
2. Remove wheels from wheel adjusters.
3. Remove any trash or grass cuttings
from inside the dust cover, pinion and/
or drive wheel gear teeth.
4. Put wheels back in place.
NOTE: If after cleaning, the drive wheels
do not turn freely, contact a Sears or other
qualified 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 filledwith lubricantto
the proper level at the factory. The only
time the lubricantneeds attention is if
service has been performed on the
gear case.
If lubricantis 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 classificationSF-SJ,
Select the oil'sSAE viscositygrade
according to your expected operating
temperature.
12
NOTE: Although multi-viscosity oils
(5W30, 10W30 etc.) improve starting in
cold weather, these multi-viscosityoils
will result in increased oil consumption
when used above 32°1:.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.
1. Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.
2. Remove engine oil cap; lay aside on a
clean surface.
3. 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.
4. Wipe off any spilled oil on lawn mower
and on side of engine.
5. Fill engine with oil. (See "Add Oil" in
the Operacion sectionof this manual.)
6. Reconnect spark plug wire to spark
plug.
Contamer