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Caterpillar — Engine Air Filter Primary Element - Clean/Replace

Maintenance

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

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Before you start

  • Do not tap or strike the filter element in order to remove dust.
  • Do not wash the filter element.
  • Do not use elements with damaged pleats, gaskets, or seals.

Procedure

  1. Open the rear hood to access the air filter. The air filter is located on the right side of the machine.
  2. Remove the cover on the air filter housing.
  3. Remove the primary element from the air filter housing.
  4. Clean the inside of the air filter housing.
  5. Inspect the primary element. Discard the element if the pleats, gaskets, or seals are damaged.
  6. Clean with low pressure compressed air not exceeding 207 kPa (30 psi), or use vacuum cleaning.
  7. Inspect the clean, dry element with a 60 watt blue light in a dark room for tears and/or holes.
  8. Install the element and cover. Close the access door.

Tools required

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

Specs & values

  • Air pressure must not exceed 207 kPa (30 psi)
  • Primary air filter element can be used up to six times if properly cleaned and inspected
  • Replace the primary air filter element at least one time per year regardless of the number of cleanings

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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