Brake Operation; Operator Presence System And Reverse Operation System - Ros; Blade Removal; To Sharpen Blade - Craftsman 917.275764 Owner's Manual

TRACTOR
Alwaysobserve safetyrules when per-
formingany maintenance.
BRAKE OPERATION
If tractor requiresmore than five (5) feet to
stop at highest speed in highest gear on a
level,dry concrete or paved surface,then
brakemust be checkedand adjusted. (See
"TOADJUST BRAKE"in the Service and
Adjustmentssectionof 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 rub-
ber.
• 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 AND
REVERSE OPERATION SYSTEM (ROS)
Be sure operator presence and reverse
operation systems are working properly. If
your tractor does not function as de-
scribed, repair the problem immediately.
• The engine should not start unless the
brake pedal is fully depressed, and the
attachment clutch control is in the disen-
gaged position.
CHECK OPERATOR PRESENCE
SYSTEM
• 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 at-
tachment clutch is engaged, any attempt
by the operator to leave the seat should
shut off the engine.
• The attachment clutch should never op-
erate unless the operator is in the seat.
ROS "ON" Position Engine "ON" Position
(Normal Operating)
CHECK REVERSE OPERATION (ROS)
SYSTEM
• When the engine is running with the
ignition switch in the engine "ON" posi-
tion and the attachment clutch engaged,
any attempt by the operator to shift into
reverse should shut off the engine.
• When the engine is running with the
ignition switch in the ROS "ON" position
and the attachment clutch engaged,
any attempt by the operator to shift into
reverse should NOT shut off the engine.
BLADE CARE
For best results mower blades must be kept
sharp. Replace bent or damaged blades.
A CAUTION: Use only a replacement blade
approved by the manufacturer of your tractor.
Using a blade not approved by the manu-
facturer of your tractor is hazardous, could
damage your tractor and void your warranty.
BLADE REMOVAL
1. Raise mower to highest position to al-
low access to blades.
2. Remove blade bolt, lock washer and
flat washer securing blade.
3. Install new or resharpened blade
with trailing edge up towards deck as
shown.
IMPORTANT: To ensure proper assembly,
center hole in blade must align with star
on mandrel assembly.
4. Reassemble blade bolt, lock washer
and flat washer in exact order as
shown.
5. Tighten blade bolt securely (27-35 Ft.
Lbs. torque).
IMPORTANT: Blade bolt is heat treated.
If bolt needs replacing, replace only with
approve bolt shown in the Repair Parts.
Trailing Mandrel As: _embly
Edge Up_ Blade
Centel
Hole
Flat
Lock Washer
¢_-Blade Bolt
TO SHARPEN BLADE
NOTE: We do not recommend sharpening
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.
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