Kubota RT120Q Operator's Manual page 184

RT120Q Operator's Manual
Service - 183
1000 Hour
Change Planetary Wheel End Oil
Change wheel end oil every 1000 hours.
To change:
1. Position wheel with plug at bottom.
2. Remove plug.
3. Drain oil.
4. Reposition wheel with plug at midway position.
5. Fill with MPL to plug opening.
6. Replace plug.
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Trencher
Change Trencher Gearbox Oil
Change trencher gearbox oil every 1000 hours.
Drain at plug. Replace drain plug and fill with MPL
to lowest line on sight tube.