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Craftsman 917.28934 Manual Del Operador página 17

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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 PSI on tires).
• 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 dueto slow leaks, tire sealant may be puF
chased from your local parts dealer. Tire seal-
ant 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 unlessthe
brake
pedal is fully depressed,
and the attachment
clutch control is in the disengaged
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.
A CAUTION:
Use only a replacement
blade
approved
bythe 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 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.
Mandrel Assembt,
ROS "On"
Position
Engine "On" Position
(Normal Operating)
17
Center Hole
/
Blade Bott-'_'_
X_
(Special)
Blade
BATTERY
Your tractor
has a battery
charging
system
which
is sufficient
for normal
use.
However,
periodic
charging
of the battery
with an au-
tomotive
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 terminals
can cause the battery
to "leak" power.
1.
Disconnect
BLACK
battery
cable
first
then
RED
battery
cable
and
remove
battery
from tractor.
2.
Rinse the battery with plain water and dry.
3.
Clean
terminals
and battery
cable
ends
with wire
brush
until bright.
4.
Coat terminals
with grease
or petroleum
jelly.
5.
Reinstall
battery
(See "REPLACING
BAT-
TERY"
in the Service
and Adjustments
section
of this manual).

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