TM   9-2320-273-20 Section ll MAINTENANCE ALLOCATION CHART FOR TRUCK, TRACTOR, M915, M916, AND M920 AND CHASSIS FOR M917, M918, AND M919 (Continued). (1) GROUP NUMBER (2) COMPONENT/ASSEMBLY 05 0507 06 0601 0603 0607 0608 0609 COOLING  SYSTEM (Continued) Fan Clutch Actuator Fan  Clutch  Actuator  Hoses ELECTRICAL SYSTEM Alternator  &  Regulator (Internal) Alternator  Drive  Belts Starter  Motor/Solenoid Starter  Magnetic  Switch Instruments – LH Cluster Engine Run Switch Start Switch Ether  Quick-Start  Button Clearance  Lamp Headlight Blackout Switch Engine Retarder Selector Switch Engine Retarder Foot Switch Turn Signal Control Backup  Alarm  Override Work Lamp Switch Heater Fan Switch Dimmer Switch Service Head Lamps (3) MAINTENANCE FUNCTION C Inspect 0.2 Replace Inspect 0.1 Replace Inspect Replace Adjust Test Repair Inspect Adjust Replace Replace Repair Inspect Replace Replace Replace Replace Replace Replace Replace Replace Replace Replace Replace Replace Replace Replace Replace Replace 0.2 0.1 0.1 (4) MAINTENANCE CATEGORY O F H 0.5 0.5 1.0 0.5 0.5 2.0 0.1 0.3 0.9 1.8 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 (5) TOOLS  AND EQUIPMENT 78-79 80 (6) REMARKS 916/920 B-9 D