Caterpillar — Seal Inspection and Replacement
Maintenance · Hub seal
From a Caterpillar owner's manual — check it applies to your exact model before use.
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Before you start
- Never drive the seal out with the inner bearing as you may damage the bearing.
- Permatex sealant should not be used on rubber encased seals.
Procedure
- Pry the seal out of the hub with a screwdriver.
- Apply a PERMATEX sealant to the outside of the new seal.
- Tap the new seal into place using a clean wood block.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Use only the seals specified in the Seal Replacement Chart
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.