Drive System Maintenance; Checking The Torque Of The Wheel Nuts; Checking The Planetary Gear Drive Oil; Changing The Planetary Gear Drive Oil - Toro 03780 Operator's Manual

Drive System
Maintenance
Checking the Torque of the
Wheel Nuts
Service Interval: After the first 8 hours
Every 200 hours
WARNING
Failure to maintain proper torque of the wheel nuts
could result in failure or loss of wheel and may
result in personal injury.
Torque the front and rear wheel nuts to 85-100 ft.-lb.
(115-136 N·m) after 1-4 hours of operation and again
after 8 hours of operation. Torque every 200 hours
thereafter.
Note: Front wheel nuts are 1/2-20 UNF. Rear wheel nuts
are M12 x 1.6-6H (Metric).
Checking the Planetary Gear
Drive Oil
Service Interval: Every 400 hours
Check the oil level after every 400 hours of operation. Use
high quality SAE 85W-140 wt. gear lube as a replacement.
1. With machine on level surface, position the wheel so
one check plug (Figure 59) is at the 12 o'clock position
and the other is at 3 o'clock position.
Figure 59
1. Check/drain plug (2)
2. Remove the plug at the 3 o'clock position (Figure 59).
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. Re-install both plugs.
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5. Repeat steps 1 through 4 on the opposite planetary
gear assembly.
Changing the Planetary Gear
Drive Oil
Service Interval: After the first 200 hours
Every 800 hours (Or yearly, whichever comes first)
Change the oil initially after first 200 hours of operation.
Thereafter, change the oil every 800 hours, or yearly,
whichever occurs first. Use a high quality SAE 85W-140 wt.
gear lube as replacement.
1. With the machine on a level surface, position a wheel
so that one of the check plugs is at the lowest (6
o'clock) position (Figure 60).
Figure 60
1. Check/drain plug
2. Place a drain pan under the planetary hub, remove plug
and allow oil to drain.
3. Place a drain pan under the brake housing, remove the
drain plug and allow the oil to drain (Figure 61).
Figure 61
1. Brake housing
4. When all of the oil has drained from both locations,
re-install the plug in the brake housing.
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2. Drain plug