Caterpillar — Differential and Final Drive Oil - Change

Maintenance

From a Caterpillar owner's manual — check it applies to your exact model before use.

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Procedure

1. Remove the drain plugs. Attach a hose to a suitable drain adapter. Install the adapter in the drain valve and allow the oil to drain into a suitable container.
2. Clean the drain plugs and install the drain plugs.
3. Wipe off the dipstick/fill plugs and the surfaces around the dipstick/fill plugs.
4. Remove the dipstick/fill plugs. Fill each axle with 1.0 L (1.06 qt) of 1U-9891 Hydraulic Oil Additive. Fill the axles with oil.
5. Clean the dipstick/fill plugs and install the dipstick/fill plugs.
6. Run the machine on level ground for a few minutes to equalize the oil level in the axle. Check the oil level in the axle.

Source: Caterpillar owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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