Caterpillar — Aftercooler Core - Clean/Test
Maintenance · Aftercooler core (3056 turbocharged)
From a Caterpillar operator's manual covering: 3054, 3054B, 3056. Check it applies to your exact model before use.
Applies to: Caterpillar 3054, Caterpillar 3056
Before you start
- High caustic cleaner concentration can damage core
- Wear protective face shield and clothing when using pressure air
Procedure
- Remove the core per Service Manual
- Turn core upside-down to remove debris
- Back flush core with Hydrosolv liquid cleaner (2-5% concentration, max 93C/200F)
- Steam clean core to remove residue and flush fins
- Remove any trapped debris
- Wash core with hot soapy water and rinse thoroughly with clean water
- Dry core with compressed air, directing air in reverse flow direction
- Maximum air pressure at nozzle must be less than 205 kPa (30 psi)
- Inspect core to ensure cleanliness
- Pressure test the core (shops servicing radiators can perform this)
- Repair core if necessary
- Install core per Service Manual
Tools required
- Hydrosolv liquid cleaner (1U-5490 or 174-6854 - 19L/5 US gallon) Amazon
- Steam cleaner Amazon
- Compressed air system Amazon
- Protective face shield Amazon
- Protective clothing Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Use 2-5% cleaner concentration
- Temperature up to 93C (200F)
- Air pressure max 205 kPa (30 psi)
Full service-parts list: Caterpillar 3054 →, Caterpillar 3056 →
Source: Caterpillar operator'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.