Download Print this page

Craftsman 917.25431 Operator's Manual page 18

21.0 hp 42" mower electric start automatic transmission
Hide thumbs Also See for 917.25431:

Advertisement

BATTERY
Your tractor has a battery charging system
which is sufficient for normal use. However,
periodic charging of the battery with an au-
tomotive charger wilt 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 termi-
nals can cause the battery to "leak" power.
1. Disconnect
BLACK
battery cable first
then RED
battery cable and remove
battery from tractor.
2. Rinsethe batterywith plain waterand dry.
3. Clean terminals and battery cable ends
with wire brush until bright.
4. Coatterminals
with grease or petroleum
jelly.
5. Reinstall
battery
(See "REPLACING
BATTERY" in the SERVICE AND AD-
JUSTMENTS section of this manual).
V=BELTS
Check V-belts for deterioration and wear after
100 hours of operation and replace if neces-
sary. The belts are not adjustable. Replace
belts if they begin to slip from wear.
TRANSAXLE
COOLING
The transmission fan and cooling fins should
be kept clean to ensure proper cooling.
Do not attempt to clean fan or transmission
while engine is running or while the trans-
mission is hot. To prevent possible damage
to seals, do not use high pressure water or
steam to clean transaxle.
Inspect cooling fan to Ensure fan blades
are intact and clean.
Inspect cooling fins for dirt, grass clippings
and other materials. To prevent damage to
seals, do not use compressed air or high
pressure sprayer to clean cooling fins.
TRANSAXLE
PUMP FLUID
The transaxte was sealed at the factory and
fluid maintenance is not required for the life
of the transaxle.
Should the transaxle ever
leak or require servicing, contact your near-
est Sears or other qualified service center.
ENGINE
LU BRICATION
Only use high quality detergent oil rated with
API service classification SG-SL
Selectthe
oil's SAE viscosity grade according to your
expected operating temperature.
SAE VISCOSITY
GRADES
F
-20
0
30
32
40
60
80
100
c
=30
=20
=10
0
10
20
30
40
TEMPERATURE
RANGE ANTICIPATED
BEFORE NEXT OIL CHANGE
NOTE: Although multi-viscosity oils (5W30,
10W30 etc.) improve starting in cotd weather,
they will result in increased oil consumption
when used above 32°F/0°C.
Check your
engine oil level more frequenttyto avoid pos-
sible engine damage from running low on oil.
Change the oil after every 50 hours of opera-
tion or at least once a year if the tractor is
not used for 50 hours in one year.
Checkthe crankcase oil level before starting
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.
1. Be sure tractor is on level surface.
2. Oil will drain more freely when warm.
3. Catch oil in a suitable container.
4. Remove oil fill cap/dipstick.
Be careful
not to allow dirt to enter the engine when
changing oil.
5. Remove yellow cap from end of drain valve
and install the drain tube onto the fitting.
I
OIL
DRAIN
VALVE
CLOSED
___
Pos,T,ON
VELLOWDAP
J
6. Unlock drain valve by pushing inward and
turning counterclockwise.
7. To open, pull out on the drain valve.
8. After oil has drained completely, close and
lock the drain valve by pushing inward
and turning clockwise until the pin is in
the locked position as shown.
18

Advertisement

loading