TM 1-1520-238-23Change 81-1551.48.ENVIRONMENTAL CONTROL UNIT (ENCU) CLEANING (WATER WASH) – continuedc. Blow out two hoses (2). Use compressor and airblow gun, set to discharge air at no more than 80psi.d. Run ENCU (4) (TM 1-1520-238-CL)at least 1MINUTE while spraying solvent into inlet (1).Use dry cleaning solvent (item 74, App F) andcleaning gun set on coarse spray.e. Rinse inlet (1) with clean water for at least 3MINUTES.f. Stop ENCU (4) (TM 1-1520-238-CL).g. Install two hoses (2).(1) Position two clamps (3) on two hoses (2). Donot tighten.(2) Install two hoses (2) on ENCU (4).(3) Tighten two clamps (3).h. Run ENCU (4) (TM 1-1520-238-CL)at least 1MINUTE to eliminate water from ENCU ducts.i. Install ENCU filter (para 13.12).j. Remove external power – air (para 1.71).k. Remove external power– electrical (para1.70).l. Secure access doors T250L, T250R, T290L,T290R, and L325 (para 2.2).END OF TASK1M04-3324-4A432
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