Sears Craftsman 917.28972 Manual Del Usuario página 18

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TRACTOR
Always
observe
safety rules when per-
forming
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 due to stow 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 at-
tempt
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 at-
tempt
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 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 al-
low 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
Assembly
Blade
Center Hole
,_\
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 I 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.
18
FILTRO DE A1
Su motor no v_
si usa un filtro
prefiltro de esr.
de operaciOn c
cartucho de p;
o cada temper
Dele servicio
bajo condicion
1,
Remueva I
PARA DARLE
2.
L_vefo en
3.
S_quelo al
4.
fmpregnar
en un par_€
para remo'
AVISO: Si est,
prefiltro.
PARA DARLE
1.
Limpie el[
en una
SLII
muy sucio
2.
Reinstale t
erta y ase!
AVISO: Los s_
et kerosene, n
cartucho, Pue
No aceite el c_
para limpiarlo
Cubierta/_
Prefittr
Espurr
LIMPIEZA DE
La rejilla de ai
y paja para e\
sobrecalentar
alarnbre o cot
mugre y las fi
LIMPIEZA DE
DE ENFRIAIV
Para ,asegura
asegurese qu
de enfriamien
motor se mar"

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