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Caterpillar — Crankshaft Vibration Damper - Inspect

Maintenance

From a Caterpillar owner's manual covering: 3126B, 3126B Petroleum Engine, Z2A1-Up. Check it applies to your exact model before use.

Applies to: Caterpillar 3126B

Procedure

  1. Inspect the damper for evidence of fluid leaks; the fluid in the damper is silicone.
  2. If the fluid leak is oil, inspect the crankshaft seals for leaks and replace if observed.
  3. Repair or replace the damper if it is dented, cracked or leaking.
  4. Repair or replace the damper if the paint is discolored from heat.
  5. Repair or replace the damper if the engine had a failure because of a broken crankshaft.

Full service-parts list: Caterpillar 3126B →

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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