Caterpillar — Aftercooler Core - Inspect/Clean
Maintenance
From a Caterpillar owner's manual covering: 3508, 3512, 3516. Check it applies to your exact model before use.
Applies to: Caterpillar 3508, Caterpillar 3512, Caterpillar 3516, Caterpillar 3508B engine
Before you start
- Do not use a high concentration of caustic cleaner
- Do not use high pressure when the fins are cleaned
Procedure
- Remove the core.
- Turn the aftercooler core on one side; remove accessible debris.
- Back flush the core with cleaner.
- Remove the drain plug; steam clean the core; flush the fins.
- Wash the core with hot, soapy water.
- Flush thoroughly with clean, fresh water until clear.
- Dry the core with compressed air opposite to normal flow direction.
- Inspect O-rings/seals; pressure test for leaks; install the core.
Specs & values
- Maximum air pressure at nozzle less than 205 kPa (30 psi)
- Use two to five percent Hydrosolv cleaner concentration
Full service-parts list: Caterpillar 3508 →, Caterpillar 3512 →, Caterpillar 3516 →, Caterpillar 3508B engine →
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.