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Caterpillar — Oil Cooler Core - Clean

Maintenance · Oil cooler core (overhaul)

From a Caterpillar owner's manual covering: 3054E, 3056E, C12. Check it applies to your exact model before use.

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Before you start

  • Do not use caustic cleaners to clean the core.

Procedure

  1. Remove the oil cooler core.
  2. Remove any debris from the oil cooler core by turning it onto one end.
  3. Flush the oil cooler core internally with cleaner in order to loosen foreign substances.
  4. Use steam to clean the oil cooler core. Flush the fins and remove trapped debris.
  5. Wash the oil cooler core with hot, soapy water. Rinse thoroughly with clean water.
  6. Dry the oil cooler core with compressed air in the reverse direction of normal flow.
  7. Inspect the components. Pressure test the core. Repair if necessary. Install the core.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • Maximum air pressure at the nozzle must be less than 205 kPa (30 psi) for cleaning purposes.

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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