TM 9-2320-302-20 0234 00-7 Table 1. MAC for the M915A3 Tractor Truck - Continued. (1) GROUP NUMBER (2) COMPONENT/ ASSEMBLY (3) MAINTENANCE FUNCTION (4) MAINTENANCE LEVEL (5) TOOLS AND EQUIPMENT REF CODE (6) REMARKS CODE UNIT DS GS DEPOT C O F H D Rear Chamber Assembly Inspect Replace 0.2 1.3 120 Air Dryer Service Replace Repair 0.5 0.5 0.8 120 120 100,120 Foot Valve Replace Repair 0.2 1.0 120 100,120 Air Valves Replace 0.3 120 Air Reservoir Replace 0.3 120 ABS Solenoid Valve Replace 0.8 120 1209 Air Compressor Replace Repair 1.0 4.0 103,120 46,101,120 13 WHEELS 1311 Front Hub and Drum Assemblies Replace Repair 0.5 0.1 102,120 42,101,120 Wheel Assembly Inspect Replace 0.1 0.5 0.4 102,120 Rear Hub and Drum Replace Repair 0.5 1.0 102,120 42,101,120 ABS Tone Ring Replace 0.5 51,120 1313 Tires Replace Repair 0.1 0.5 102,120 102 D 14 STEERING 1401 Steering Wheel Replace 1.0 102,120 Tilt Steering Column Replace 1.0 120 Steering Universal Joint and Shaft Replace Repair 3.0 1.0 120 120 1407 Steering Gear Replace Repair 0.5 2.5 100,120 8,38,43,52,58, 101,108,120 1410 Power Steering Pump Test Replace Repair 0.3 0.7 1.5 116,120 100,120 100,120 1411 Power Steering Hoses Inspect Replace 0.1 0.5 120 1413 Reservoir Assembly and Bracket Replace Repair 1.0 1.0 120 103,120