TM 5-4220-225-14 SECTION II.  MAINTENANCE ALLOCATION CHART FOR MK12 SURFACE SUPPORTED DIVING SYSTEM (1) (2) (3) (4) (5) (6) MAINTENANCE LEVEL GROUP COMPONENT/ MAINTENANCE UNIT INTERMEDIATE   DEPOT NUMBER ASSEMBLY FUNCTION C O F H D TOOLS REMARKS 0205 ADJUSTABLE Inspect 0.1 EXHAUST VALVE Adjust 0.4 ASSEMBLY Replace 0.3 40,15,22, 13,8,14, 41,23,17, 54 Repair 0.4 40,15,22, 13,8,14, 41,23,17, 54 0206 AMBIENT EXHAUST Inspect 0.1 VALVE Replace 0.3 40,22,13, 8,14,15, 41 Repair 0.6 40,22,13 8,14,15, 41 0207 HELMET LUG Inspect 0.1 Replace 0.3 41,20,14, 15,28 Repair 0.3 41,20,14, 15,28 0208 HELMET Inspect 0.2 COMMUNICA- TIONS Test 0.3 Replace 0.5 15,16,22, 14,29,52, 51 Repair 0.2 15,16,22, 14,29,52, 51 020801   COMMUNICA- TIONS Inspect 0.2 WHIP Test 0.2 52 Replace 0.3 53,34,22 14,15,41, 51 0209 HELMET LINER Inspect 0.1 Replace 0.2 B-6