Perkins 1106C-70TA / 1106D-70TA — Aftercooler Core - Clean/Test
Maintenance
For the Perkins 1106C-70TA / 1106D-70TA, from the Perkins owner's manual.
Applies to: Perkins 1106C-70TA, Perkins 1106D-70TA
Before you start
- Personal injury can result from air pressure. Wear protective face shield and clothing.
Procedure
- Remove core. Refer to OEM information for correct procedure.
- Turn aftercooler core upside-down to remove debris.
- Use pressurized air to remove loose debris. Direct air opposite to fan airflow. Hold nozzle approximately 6 mm from fins. Move parallel with tubes.
- Pressurized water may be used. Maximum water pressure less than 275 kPa. Use to soften mud. Clean core from both sides.
- Back flush core with suitable cleaner.
- Clean core with steam to remove residue. Flush fins of aftercooler core.
- Wash core with hot, soapy water. Rinse core thoroughly with clean water.
- Dry core with compressed air. Direct air in reverse direction of normal flow.
- Inspect core for cleanliness. Pressure test core. Repair if necessary.
- Install core. Refer to OEM information.
- Start engine and accelerate to high idle. Stop engine. Use light bulb behind core to inspect cleanliness. Repeat if necessary.
Tools required
- light bulb Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Air pressure maximum 205 kPa (30 psi)
- Water pressure maximum 275 kPa (40 psi)
Full service-parts list: Perkins 1106C-70TA →, Perkins 1106D-70TA →
Source: Perkins 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.