Drive System Maintenance; Checking For End-Play In The Planetary Drives; Checking The Planetary-Gear-Drive Oil - Toro Groundsmaster 4500-D Operator's Manual

Drive System
Maintenance
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 mower decks, 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.
Figure 80
1. Front drive wheels
4. Repeat step 3 for the other drive wheel.
5. If either wheel moves, contact your Toro
Distributor to have the planetary drive rebuilt.
Checking the
Planetary-Gear-Drive Oil
Service Interval: Every 400 hours (check if you
Every 400 hours
Use high quality SAE 85W-140 gear lube as a
replacement.
1. With machine on level surface, position the
wheel so that 1 check plug is at the 12 o'clock
position and the other is at 3 o'clock position
(Figure 81).
1. Check/drain plug (2)
2. Remove the plug at the 3 o'clock position
81).
The oil level should be at the bottom of the
check-plug hole.
3. If the oil level is low, remove the plug at the 12
o'clock position and add oil until it begins to flow
out of the hole at the 3 o'clock position.
4. Install both plugs.
5. Repeat steps
planetary gear assembly.
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63
notice external leakage).
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Figure 81
1 through 4 on the opposite
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(Figure