Craftsman 917.273523 Owner's Manual page 20

Lawn tractor 21.0 hp, 42" mower electric start automatic transmission
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BATTERY
Your tractor
has a battery
charging
system
which
is sufficient
for normal
use.
How-
ever, periodic
charging
of the battery
with
an automotive
charger
will extend
its life.
• Keep battery
and terminals
clean.
• Keep battery
bolts tight.
• Keep small vent holes open.
• Recharge
at 6-10 amperes
for 1 hour.
NOTE:
The original
equipment
battery
on
your tractor
is maintenance
free. Do not
attempt
to open or remove
caps or covers.
Adding
or checking
level of electrolyte
is
not necessary.
TO CLEAN
BATTERY
AND TERMINALS
Corrosion
and dirt on the battery
and
terminals
can cause the battery
to "leak"
power.
1.
Remove
terminal
guard.
2.
Disconnect
BLACK
battery
cable first
then RED
battery
cable and remove
battery
from tractor.
3.
Rinse the battery
with plain water and
dry.
4.
Clean
terminals
and battery
cable ends
with wire brush
until bright.
5.
Coat terminals
with grease
or petro-
leum jelly.
6.
Reinstall
battery
(See "REPLACING
BATTERY"
in the SERVICE
AND AD-
JUSTMENTS
section
of this manual).
TRANSAXLE
COOLING
The transmission
fan and cooling
fins
should
be kept clean to assure
proper
cooling.
Do not attempt
to clean fan or transmis-
sion while
engine
is running
or while the
transmission
is hot. To prevent
possible
damage
to seals,
do not use high pressure
water or steam
to clean transaxle.
• Inspect
cooling
fan to be sure fan blades
are intact and clean.
• Inspect
cooling
fins for dirt, grass clip-
pings and other materials.
To prevent
damage
to seals,
do not use com-
pressed
air or high pressure
sprayer
to
clean cooling
fins.
TRANSAXLE
PUMP
FLUID
The transaxle
was sealed
at the factory
and fluid maintenance
is not required
for
the life of the transaxle.
Should
the trans-
axle ever leak or require
servicing,
contact
a Sears
or other qualified
service
center.
V-BELTS
Check V-belts for deterioration and wear
after 100 hours of operation and replace
if necessary. The belts are not adjustable.
Replace belts if they begin to slip from
wear.
ENGINE
LUBRICATION
Only use high quality
detergent
oil rated
with API service
classification
SG-SL
Select the oil's SAE viscosity
grade
according
to your expected
operating
temperature.
NOTE:
Although
multi-viscosity
oils
(5W30,
10W30
etc.) improve
starting
in
cold weather,
they will result in increased
oil consumption
when used above
32°R
Check your engine
oil level more frequent-
ly to avoid
possible
engine
damage
from
running
low on oil.
Change
the oil after every 50 hours of op-
eration
or at least once a year if the tractor
is not used for 50 hours
in one year.
Check the crankcase
oil level before
start-
ing the engine
and after each eight (8)
hours of operation.
Tighten
oil fill cap/
dipstick
securely
each time you check the
oil level.
TO CHANGE
ENGINE
OIL
Determine
temperature
range expected
before oil change.
All oil must meet API
service
classification
SG-SL
Be sure tractor
is on level surface.
• Oil will drain more freely when
warm.
• Catch oil in a suitable
container.
1.
Remove
oil fill cap/dipstick.
Be careful
not to allow dirt to enter the engine
when
changing
oil.
2.
Remove
yellow
cap from end of drain
valve and install the drain tube onto the
fitting.
20

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