Drive Wheels; Gear Case; To Change Engine Oil - Craftsman 917.378480 Owner's Manual

6.75 horsepower power-propelled 21" rear discharge rotary lawn mower
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GRASS
CATCHER
° The grass catcher may be hosed with
water, but must be dry when used.
° Check yourgrasscatcheroften
fordamage
or deterioration, Through normal use it will
wear. If catcher needs replacing, replace
only with a manufacturer
approved replace-
ment 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,
be
sure to clean both front wheels.
1. Remove
hubcaps,
Iocknuts and wash-
ers.
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 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 onlyTexaco
Starplex
Premium
1 Grease,
Part No.
750369.
Do not substitute.
ENGINE
LUBRICATION
Use only high quality detergent oil rated with
API service classification SF-SJ.
Select the
oil's SAE viscosity
grade according to your
expected
operating
temperature.
SAE VISCOSITY
GRADES
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 orat 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 re-
move any oil trapped
inside of engine.
4.
Wipe off any spilled oil from lawn
mower or side of engine.
5. Fill engine
with oil.
The engine oil ca-
pacity is 20 oz.
If oil is not completely
drained from engine, you may not need
the entire container
of a 20 oz. bottle of
oil.
Slowly
pour 3/4 of the oil from the
container
down the oil fill spout into the
engine.
6. Wait one minute to allow oil to settle.
Insert and tighten dipstick,
then re-
move it to check oil level.
7.
Continue
adding small amounts
of
oil and rechecking
the dipstick until it
reads full. DO NOT overfill, or engine
will smoke on startup.
8. Always be sure to retighten
oil dipstick
before starting
engine.
9.
Reconnect
spark plug wire to spark plug.

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