To Sharpen Blade; Battery; Transaxle Cooling; Transaxle Pump Fluid - Craftsman 917.275662 Owner's Manual

Lawn tractor 20.0 hp, 42" mower electric start automatic transmission
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TO SHARPEN
BLADE
NOTE:
We do not recommend
sharp-
ening 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
excessive
vibration
and eventual
damage
to mower
and 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,
you will need a
5/8" diameter
steel bolt, pin, or a cone
balancer.
(When
using a cone balancer,
follow the instructions
supplied
with
balancer.)
NOTE:
Do not use a nail for balancing
blade.
The lobes
of the center
hole may
appear
to be centered,
but are not.
• Slide blade on to an unthreaded
portion
of the steel bolt or pin and hold the
bolt or pin parallel
with the ground.
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.
Center Hole
5/8" Bolt
or Pin
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 termi-
nals 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 pres-
sure 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.
SAE VISCOSITY
GRADES
-30
-20
-10
0
20
30
40
TEMPERATURE
RANGE ANTICIPATED
BEFORE NEXT OIL CHANGE
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.
19

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