Drive System Maintenance; Checking The Tire Pressure; Checking The Torque Of The Wheel Nuts; Checking For End-Play In The Planetary Drives - Toro 03781TE Operator's Manual

Drive System
Maintenance

Checking the Tire Pressure

Service Interval: Before each use or daily
The tires are overinflated for shipping. Therefore,
release some of the air to reduce the pressure. The
correct air pressure in the tires is 83 to 103 kPa (12 to
15 psi). Check the tire pressure daily.
Important:
Maintain the recommended pressure
in all tires to ensure a good quality of cut and
proper machine performance. Do not underinflate
the tires.
Checking the Torque of the
Wheel Nuts
Service Interval: After the first 8 hours
Every 200 hours
Park the machine on a level surface, lower the cutting
units, engage the parking brake, shut off the engine,
and remove the key.
WARNING
Failure to maintain proper torque of the wheel
nuts could result in failure or loss of a wheel
and may result in personal injury.
Torque the front and rear wheel nuts to
115 to 136 N∙m (85 to 100 ft-lb) after 1 to 4
hours of operation and again after 8 hours of
operation. Torque the wheel nuts every 200
hours thereafter.
Note:
The front wheel nuts are 1/2–20 UNF. The rear
wheel nuts are M12 x 1.6-6H (metric).
Checking for End-Play in
the Planetary Drives
Service Interval: Every 400 hours
There should be no end-play in the planetary
drives/drive wheels (i.e., the wheels should not move
when you pull or push them in a direction parallel to
the axle).
1. Park the machine on a level surface, engage the
parking brake, lower the cutting units, shut off
the engine, and remove the key.
2. Chock the rear wheels and raise the front of
machine, supporting the front axle/frame on jack
stands.
DANGER
A machine on a jack may be unstable and
slip off the jack, injuring anyone beneath
it.
• Do not start the engine while the
machine is on a jack.
• Always remove the key from the
switch before getting off the machine.
• Block the tires when you are raising
the machine with a jack.
• Support the machine with jack stands.
3. Grasp 1 of the front drive wheels and push/pull it
toward and away from the machine, noting any
movement.
1. Front drive wheels
4. Repeat step 3
5. If either wheel moves, contact your authorized
Toro distributor to have the planetary drive
rebuilt.
Checking the Planetary
Gear-Drive Lubricant
Service Interval: Every 400 hours (check if you
notice external leakage).
Lubricant Specification: high quality SAE 85W-140
gear lubricant
1. Park the machine on level surface, position the
wheel so that the fill plug is at the 12 o'clock
position, the check plug is at 3 o'clock position,
and the drain plug is at the 6 o'clock position
(Figure 63).
48
Figure 62
for the other drive wheel.
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