TM 5-4310-386-14 Section II.  MAINTENANCE ALLOCATION CHART FOR COMPRESSOR UNIT 20 CFM, 3200 PSI (1) (2) (3) (4) (5) (6) Maintenance Level Unit Intermediate Depot Tools Group Component/ Maintenance and Number Assembly Function C O F H D Equip Remarks 0403 OIL PUMP AND Inspect 0.3 SUPPLY LINE Replace 0.3 1 0404 OIL PRESSURE Inspect 0.1 REGULATOR VALVE Adjust 0.1 AND OIL RETURN Replace 0.2 1 LINE Repair 1.0 0405 FANWHEEL GUARD Replace 0.2 1 0406 FLYWHEEL/ Inspect 0.1 FANWHEEL Replace 0.5 1 ASSEMBLY Repair 0.5 1 0407 INTERCOOLERS AND Replace 2.0 1 AFTERCOOLER 0408 MANIFOLD AND Replace 0.1 SAFETY VALVE (1 ST STAGE) 0409 INTERFILTER BLOCK Replace 1.8 1 ASSEMBLY Repair 5.0 1 C 040901 INTERFILTER SAFETY Replace 0.3 VALVE 040902 INTERFILTER DRAIN Replace 0.3 1 VALVES Repair 1.0 1 040903 INTERFILTER 2ND Replace 0.6 1 AND 3RD STAGE Repair 2.0 1 HOUSING 040904 OIL, WATER Replace 0.3 1 SEPARATOR Repair 1.0 1 HOUSING 040905 INTERFILTER HEATER Replace 0.3 1 BLOCK B-5