1064-571

Possible Causes

• •Accumulation of debris and residue in aftercooler core
• •Debris accumulation on and inside the aftercooler core
• •Debris and residue accumulation in aftercooler core
• •High concentration of caustic cleaner
• •Using high pressure when cleaning the fins

Suggested Actions

1. 1Back flush the core with Hydrosolv liquid cleaner (1U-5490 Hydrosolv 4165 or 174-6854 Hydrosolv 100 at a 2% to 5% concentration at temperatures up to 93°C / 200°F)
2. 2Back flush the core with cleaner (Hydrosolv 4165 or Hydrosolv 100 at 2% to 5% concentration up to 93°C / 200°F)
3. 3Back flush the core with recommended Hydrosolv liquid cleaner (2 to 5 percent concentration at temperatures up to 93°C / 200°F)
4. 4Do not use high pressure when cleaning fins
5. 5Dry the core using compressed air (less than 205 kPa / 30 psi) directed in the reverse direction of normal flow
6. 6Dry the core with compressed air (maximum pressure less than 205 kPa / 30 psi) directed in the reverse direction of normal flow
7. 7Dry the core with compressed air directed in the reverse direction of normal flow
8. 8Ensure maximum air pressure at nozzle is less than 205 kPa (30 psi) for cleaning purposes
9. 9Flush the core thoroughly with clean, fresh water until exiting water is clear and free of debris
10. 10Flush the core thoroughly with clean, fresh water until water exiting the core is clear and free of debris
11. 11Flush the core with clean, fresh water until the exiting water is clear and free of debris
12. 12Only use the recommended concentration of cleaner (two to five percent concentration)
13. 13Remove the aftercooler core according to the Disassembly and Assembly Manual
14. 14Remove the core
15. 15Remove the core per the Disassembly and Assembly Manual
16. 16Remove the drain plug
17. 17Steam clean the core and flush fins to remove residue without using high pressure
18. 18Steam clean the core and flush the fins of the aftercooler core
19. 19Steam clean the core and flush the fins to remove residue and trapped debris
20. 20Turn the aftercooler core on one side to remove accessible debris
21. 21Wash the core with hot, soapy water

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