651E Wheel Tractor-Scraper Caterpillar

Wipe the openings around the covers and the surfaces before you fill the differential and final drives.

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1. Remove the differential drain plug and allow the oil to drain into a suitable container.

   Note: Always discard drained fluids according to local regulations.

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2. Position each tractor wheel so that the drain plug on each wheel is at the lowest point. Remove the drain plugs and allow the oil to drain into a suitable container.

3. Clean the drain plugs and install the drain plugs.

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4. Remove the filler cap.

5. Fill the differentials and the final drives. See Operation and Maintenance Manual, "Capacities (Refill)".

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6. Position each tractor wheel so that the plug on each wheel is in the correct position. Remove the plugs. Fill the final drives.

7. Clean the filler plug. Install the filler plug.

8. Clean the filler cap and install the filler cap.

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Illustration 6	g00102118

9. Maintain the differential oil level between the marks on the dipstick.