TM 9-2320-302-20 0234 00-3 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 0312 Electronic Throttle Assembly Replace 0.3 120 04 EXHAUST SYSTEM 0401 Muffler Inspect Replace 0.1 0.5 120 Exhaust Pipe Inspect Replace 0.1 1.3 120 05 COOLING SYSTEM 0501 Radiator Assembly Service Replace Repair 0.3 0.7 0.5 102 102,120 101 A 0502 Fan Shroud Replace 1.0 120 0503 Thermostat Housing Replace Repair 0.5 0.5 120 39,61,120 0504 Water Pump Replace Repair 3.0 1.5 42,102,120 98,113,120 0505 Fan Drive Support Replace 0.6 100,120 Fan Clutch and Drive Replace Repair 2.0 1.5 120 100,120 Fan Clutch Solenoid Replace 0.5 120 Fan Belt Adjust Replace 0.5 0.5 102,120 120 Spindle and Housing Replace Repair 1.5 3.0 100,120 120 0508 Water Filter Replace 0.3 102 06 ELECTRICAL SYSTEM 0601 Alternator Test Replace Repair 0.3 0.3 0.5 2.0 21,101,103,114 120 101,119 Drive Belt Adjust Replace 0.5 0.5 102,120 120 0602 Regulator Replace 0.5 120 Dual Voltage Control Unit Test Replace 0.3 0.3 102 120 0603 Starter Replace Repair 1.5 2.0 120 101,119 0605 Engine Electronic Control Unit (ECU) Test Replace 0.3 0.3 21,114 120 B