TM 9-2815-225-34&P 3-45. AIR AFTERCOOLER REPAIR (Contd) LOCATION/ITEM ACTION REMARKS b.  Cleaning WARNING   Compressed  air  used  for  cleaning  purposes  will  not  exceed  30  psi  (207  kPa).    Use  only with effective chip guarding and protective equipment such as goggles or shield, gloves, etc.  Failure to comply may result in injury to personnel.   Approved solvents may be flammable and will not be used near open flame.  Use only in well-ventilated area.  Failure to comply may result in injury to personnel. 10. Water outlet connection (1), Steam clean and dry with Use SD-3 solvent. aftercooler cover (14), intake compressed air. manifold (12), water inlet connection (8), and all mounting hardware CAUTION The aftercooler element is made from a copper alloy.  Using a cleaning solution not made for copper alloy may cause corrosion. 11. Aftercooler element (13) Clean and dry with compressed Use cleaning solution made air. especially for copper alloy. c.  Inspection 12. Water outlet connection (1), Inspect for cracks, distortion, or Discard if cracked or distorted. aftercooler cover (14), water damaged threads. Repair damaged threads with inlet connection (8), and correct thread tap. intake manifold (12) 13. Aftercooler element (13) Inspect and test for leaks as follows: a.  Cap one end air-tight. b.  Connect a suitable pressure tester to remaining open end of aftercooler element (13). c.  Apply 20 psi (138 kPa) and maintain pressure for two minutes. d.  Immerse in water while If a leak is detected, repairs maintaining 20 psi (138 kPa) and should be made by an individual look for air bubbles. qualified in repairing radiator cores. 3-266