TM 55-2210-224-12 Section II.  MAINTENANCE ALLOCATION CHART (continued) (1) (2) (3) (4) (5) (6) Maintenance Category Group Component/ Maintenance Tools and Number Assembly Function C O F H D Equipment Remarks 1913 Valve, Check, Inspect 0.1 A-B Rubber Seated Test 0.5 Y-Y Replace 1.0 2 1914 Cutout Cock, Ball Inspect 0.1 A-B Test 0.5 Y-Y Replace 1.0 2 1915 Cylinder, Brake Inspect 0.1 0.1 A-B Service 0.1 Test 1.0 Y-Y Replace 8.0 2 Repair 16.0 2 Adjust 2.0 1916 Reservoir, Main Air Inspect 0.5 A-A Service 0.3 Test 1.0 Y-Y,Y-Z Replace 12.0 2 R-A 1917 Valve, Main Air Inspect 0.1 A-B Reservoir Safety Test 1.0 W-B Replace 1.0 2 Adjust 2.0 2 Y-Y 1918 Filter, Centri- Inspect 1.5 A-A fugal Air Replace 3.0 2 Repair 8.0 2 1919 Switches, Air Inspect 0.2 A-A Pressure Control Replace 1.0 2 1920 Hoses and Fittings, Inspect 0.1 0.3 A-B Trainline Air Replace 4.0 1 Repair 0.5 1 20 TRUCKS AND UNDER- FRAME GROUP 2001 Assembly, Truck Inspect 0.2 0.5 A-A Service 2.0 Test 8.0 D-D Replace 12.0 2 R-R Repair 24.0 2 Overhaul 48.0 T-B B-14