Final Drive Case Oil Level - Check/Add - Komatsu PC78US-6 Operation & Maintenance Manual

MAINTENANCE

Final Drive Case Oil Level - Check/Add

The oil is at high temperature immediately after the machine has been operated. Wait for the oil to cool down before starting
the operation.
If there is still pressure remaining inside the case, the oil or plug may fly out.
Loosen the plug slowly to release the pressure.
Prepare a container to catch drained oil.
Prepare a hexagon wrench.
1. Turn the sprocket so that plug (P) may come to the bottom.
2. Set the container to catch oil under plug (P).
3. Remove plug (G) with a hexagonal wrench. Oil level shouldbe
near the bottom of the plug hole (G).
4. If the oil is insufficient, remove plug (F) with a hexagonal
wrench, then add oil through plug (F), until oil flows out of level
plug hole (G).
5. After checking the oil level, install plugs (F) and (G).
MAINTENANCE PROCEDURE
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