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Craftsman 917.28803 Manual De Instrucciones página 18

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TRACTOR
Always
observe
safety ruleswhen
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 checked
and adjusted.
(See
"TO ADJUST
BRAKE"
in the Service
and
Adjustments
section
of this manual).
TIRES
• Maintain
proper
air pressure
in all tires
(See sides of tire 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)
Be
sure
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 attachmentclutch
should
never oper-
ate unless
the operator
is in the seat.
CHECK
REVERSE
OPERATION
(ROS)
SYSTEM
• Whentheengine
is running
with the ignition
switch
in the engine
"ON" position
and the
attachment
clutch is engaged,
any attempt
by the operator
to go into reverse
should
shut off the engine.
ROS "ON" Position
Engine "ON" Position
(Normal Operating)
• When the engine is running withtheignition
switch
in the ROS "ON" position
and the
attachment
clutch is 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
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
"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).
Mandrel
Assembly
Blade
(Special)_
Center Hole
IMPORTANT:
Special
blade bolt is heat
treated.
18

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