Caterpillar 3126B / 3126B Industrial Engine — Aftercooler Core - Clean/Test
Maintenance
For the Caterpillar 3126B / 3126B Industrial Engine, from the Caterpillar owner's manual.
Applies to: Caterpillar 3126B, Caterpillar 3126B Industrial Engine engine
Before you start
- Do not use a high concentration of caustic cleaner to clean the core.
- Personal injury can result from air pressure.
Procedure
- Remove the core. Refer to the Service Manual.
- Turn the aftercooler core upside-down in order to remove debris.
- Back flush the core with cleaner. Caterpillar recommends Hydrosolv liquid cleaner.
- Steam clean the core to remove any residue. Flush the fins. Remove any other trapped debris.
- Wash the core with hot, soapy water. Rinse thoroughly with clean water.
- Dry the core with compressed air, directing the air in reverse of normal flow.
- Inspect the core for cleanliness. Pressure test the core. Repair if necessary.
- Install the core. Refer to the Service Manual.
Specs & values
- Use a two to five percent concentration of the cleaner at temperatures up to 93°C (200°F)
- Maximum air pressure at the nozzle must be less than 205 kPa (30 psi)
Full service-parts list: Caterpillar 3126B →, Caterpillar 3126B Industrial Engine 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.