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 0210 HELMET DUCTS Inspect 0.2 Replace 0.5 0211 HELMET SHELL Inspect 0.2 Replace 1.0 21,14,41, B 51,4,17 0212 AIR SUPPLY WHIP Inspect 0.1 Service 0.3 Test 0.2 Replace 0.1 12 03 UMBILICAL Inspect 1.0 Test 1.0 Service 1.0 Replace 0.5 47,12 Repair 2.5 32,33,35, 37,39,30, 12 04 COMMUNICA- TIONS Inspect 0.2 BOX Test 0.2 Service 0.2 Replace 0.1 18 Repair 1.5 47 B-7