Univex 96043004400 - Manual (Page 15)

15
MAINTENANCE
FIG. 12
TRACTOR
Always observe safety rules when per form ing any main-
te nance.
BRAKE OPERATION
If tractor requires more than five (5) feet to stop at highest
speed in high est gear on a level, dry concrete or paved
surface, then brake must be serviced. (See “TO CHECK
BRAKE” in the Ser vice and Ad just ments 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 chemi-
cals 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 pre vent flat tires due
to slow leaks, tire sealant may be purchased from your
local parts dealer. Tire sealant also pre vents tire dry rot
and corrosion.
OPERATOR PRESENCE SYS TEM AND REVERSE OP-
ERATION SYSTEM (ROS)
Be sure operator presence and reverse operation sys tems
are work ing properly. If your tractor does not function as
described, repair the problem immediately.
• The engine should not start unless the brake pedal is
fully de pressed, and the attachment clutch con trol is
in the dis en gaged position.
CHECK OPERATOR PRESENCE SYSTEM
• When the engine is running, any attempt by the op er a tor
to leave the seat without first setting the parking brake
should shut off the engine.
• When the engine is running and the at tach ment clutch
is engaged, any attempt by the operator to leave the
seat should shut off the engine.
• The attachment clutch should never operate 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 at tach ment 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 at tach ment clutch en-
gaged, any attempt by the operator to shift into reverse
should NOT shut off the engine.
BLADE CARE
For best results mower blades must be sharp. Re place
worn, bent or damaged blades.
02828
ROS "ON" Position
Engine "ON" Position
(Normal Operating)
BLADE REMOVAL (See Fig. 12)
• Raise mower to highest position to allow access to
blades.
NOTE: Protect your hands with gloves and/or wrap blade
with heavy cloth.
• Remove blade bolt by turning coun ter clock wise.
•
Install new blade with stamped "GRASS SIDE" facing
the ground.
IMPORTANT: To ensure proper as sem bly, center hole in
blade must align with star on mandrel assembly.
• Install and tighten blade bolt securely (45-55 Ft. Lbs.
torque).
IMPORTANT: Special blade bolt is heat treated.
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.
5/8" BOLT
OR PIN BLADE
CENTER HOLE
DECK WASHOUT PORT (See Fig. 13)
Your tractor’s deck is equipped with a washout port on
its surface as part of its deck wash system. It should be
utilized after each use.
1. Drive the tractor to a level, clear spot on your lawn,
near enough to a water spigot for your garden hose to
reach.
IMPORTANT: Make certain the tractor’s discharge chute is
directed AWAY from your house, garage, parked cars, etc.
Remove bagger chute or mulch cover if attached.
2. Make sure the PTO (Blade Engage) is not engaged,
set the parking brake, and stop the engine.
3. Thread the nozzle adapter (packaged with your tractor’s
Operator’s Manual) onto the end of your garden hose.
4. Pull back the lock collar of the nozzle adapter and push
the adapter onto the deck washout port at the left end
of the mower deck. Release the lock collar to lock the
adapter on the nozzle.