Caterpillar C15 Industrial Engine — Aftercooler Core - Clean/Test
Maintenance
For the Caterpillar C15 Industrial Engine, from the Caterpillar owner's manual.
Applies to: Caterpillar C1.5 engine
Before you start
- Personal injury can result from air pressure. Wear a face shield and protective clothing.
Procedure
- Inspect cooling air side for damaged fins, corrosion, dirt, grease, insects, leaves, oil, and debris.
- Clean with pressurized air less than 205 kPa (30 psi), directing air opposite fan airflow.
- Use pressurized water less than 275 kPa (40 psi) to soften mud.
- Use degreaser and steam for oil and grease; wash with detergent and hot water; rinse.
- Start engine and accelerate to high idle rpm to remove debris and dry core; stop engine.
- Inspect core cleanliness with a light bulb; repeat cleaning if necessary.
- Inspect fins for damage; open bent fins with a comb.
- Inspect welds, mounting brackets, air lines, connections, clamps, and seals; repair if necessary.
Tools required
- FT1984 Aftercooler Testing Group Amazon
- pressure air Amazon
- pressure water Amazon
- degreaser Amazon
- steam Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Air pressure less than 205 kPa (30 psi)
- Water pressure less than 275 kPa (40 psi)
- Hold nozzle approximately 6 mm (0.25 inch) from fins
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.