Brake Operation - Sears CRAFTSMAN 917.28924 Manual Del Operador

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TRACTOR
Always observe safety rules when performing
any maintenance.
BRAKE OPERATION
If tractor requires more than five (5) feet to
stop at highest speed in highest gear on a
level, dry concrete
or paved surface, then
brake must be serviced.
(See "TO CHECK
BRAKE"
in the Service
and Adjustments
section of this manual).
TIRES
• Maintain
proper air pressure
in all tires
(See the sides of tires for proper PSI).
• 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
AND
REVERSE
OPERATION
SYSTEM (ROS)
Ensure
operator
presence
and reverse
operation 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 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 oper-
ate unless the operator is in the seat.
CHECK
REVERSE
OPERATION
(ROS)
SYSTEM
• When the engine is running with the ignition
switch in the engine
"ON" position
and the
attachment
clutch
engaged,
any attempt
by the operator
to drive in 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 drive in reverse
should
NOT shut off the engine.
BLADE
CARE
For best results mower blades must be sharp.
Replace
worn,
bent or damaged
blades.
_,
CAUTION:
Use
only
a replacement
blade approved
by the manufacturer
of your
tractor.
Using
a blade
not approved
by the
manufacturer
of your
tractor
is hazardous,
could
damage
your
tractor
and void
your
warranty.
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 blade with stamped
"GRASS
SIDE"
facing
the ground.
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.
Star
Center Hole
\
Blade Bolt
Mandrel
(Special)
"----._
_
Assembly
Blade
ROS "ON" Position
Engine "ON" Position
(Normal Operating)
17

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