Caterpillar 3512 — Aftercooler Core - Inspect/Clean
Maintenance
For the Caterpillar 3512, from the Caterpillar owner's manual.
Applies to: Caterpillar 3512, Caterpillar 3512B 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 core on one side to remove accessible debris.
- Back flush the core with cleaner.
- Remove the drain plug.
- Steam clean the core and flush the fins.
- Wash the core with hot, soapy water.
- Flush the core with clean, fresh water until clear.
- Dry the core with compressed air in the reverse direction of normal flow.
- Inspect O-rings or seals; replace if damaged.
- Inspect for trapped debris; repeat cleaning if needed.
- Inspect for damage and pressure test to detect leaks.
- Install the core.
Tools required
- Pressure test equipment Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Maximum air pressure at nozzle must be less than 205 kPa (30 psi)
- Cleaner concentration two to five percent at temperatures up to 93 °C (200 °F)
Full service-parts list: Caterpillar 3512 →, Caterpillar 3512B 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.