TM-5-4310-389-14 Section II.  MAINTENANCE ALLOCATION CHART NOMENCLATURE OF END ITEMS 20 CFM AIR COMPRESSOR, MODEL K20 (1) (2) (3) (4) (5) (6) Maintenance Level Group Component/ Maintenance Tools and Number Assembly Function C O F H D Equipment Remarks 01 Compressor Inspect 0.1 0.1 Test 0.5 Service 0.5 Adjust 0.5 55 A, B 0101 Crankcase, Upper Inspect 0.2 Replace 4.0 Repair 8.0 51,55, 61,62 010101 Drive Gear Replace 2.0 Repair 4.0 55 0102 Crankcase, Lower Remove/ Install 0.2 C Repair 2.0 8.0 55,61, 62 010201 Tension Pulley Assy Adjust 0.5 55 0103 Cylinder Block Assy Inspect 0.1 Replace 5.0 Repair 2.0 56,62,64 -70,72-75 0104 Valve Head Assy, Inspect 0.1 1st Stage Replace 0.3 Repair 1.5 55 0105 Valve Head Assy, Inspect 0.1 2nd Stage Replace 0.3 Repair 1.5 55 0106 Valve Head assy, Inspect 0.1 3rd Stage Replace 0.3 Repair 1.5 55 B-4