Tractor; Brake Operation; Tires; To Sharpen Blade - Craftsman 917.272264 Owner's Manual

Lawn tractor 25.0 hp, 48" mower electric start automatic transmission
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TRACTOR
Always observe safety rules when
performing any maintenance.
BRAKE OPERATION
If tractor requires more than six (6) feet
stopping distance at high speed in
highest gear, then brake must be ad-
justed. (See '%O ADJUST BRAKE" in the
Service and Adjustments section of this
manual).
TIRES
• Maintain proper air pressure
in all tires
(See "PRODUCT
SPECIFICATIONS"
section of this manual).
• Keep tires free of gasoline, oil, or insect
control chemicals
which can harm
rubber.
• Avoid stumps, stones, deep ruts, sharp
objects and other hazards that may
cause tire damage.
NOTE: To seal tire punctures
and prevent
flat tires due to slow leaks, tire sealant
may be purchased
from your local parts
dealer. Tire sealant also prevents tire dry
rot and corrosion.
OPERATOR
PRESENCE
SYSTEM
Be sure operator presence and interlock
systems are working properly. If your
tractor does not function as described,
repair the problem immediately.
• The engine should not start unless the
brake pedal is fully depressed
and
attachement
clutch control is in the
disengaged
position.
• When the engine is running, any
attempt by the operator to leave the
seat without first setting the parking
brake should shut off the engine.
• When the engine is running and the
attachment
clutch is engaged,
any
attempt by the operator to leave the
seat should shut off the engine.
• The attachment
clutch should never
operate unless the operator is in the
seat.
BLADE CARE
For best results mower blades must be
kept sharp.
Replace bent or damaged
blades.
BLADE
REMOVAL
1. Raise mower to highest position to
allow access to blades.
NOTE: Protect your hands with gloves
and/or wrap blade with heavy cloth.
2.
Remove blade bolt by turning counter-
clockwise.
3. Install new or resharpened
blade with
stamped "THIS SIDE UP" facing deck
and mandrel
assembly.
IMPORTANT:
To ensure proper assembly,
center hole in blade must align with star
on mandrel assembly.
4.
Install and tighten blade bolt securely
(45-55 Ft. Lbs. torque).
IMPORTANT:
Special blade bolt is heat
treated.
Mandrel
Blade _--_deBol_.
:_Assembly
(Special)__Star
TO SHARPEN
BLADE
NOTE:
We do not recommend
sharpen-
ing 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 bal-
ancer, 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.
BI.ade
Center
/
/
5/8-
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.
19

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