TM 9-2320-209-10-1 4-2. CHASSIS CONTROLS AND INDICATORS. a. Instrument Panel Controls and Indicators. INSTRUMENT PANEL LEFT SIDE 1. Hand THROTTLE control. Sets 5. Engine START button (on trucks engine to any speed without stepping with LD 465-1 engines). When on accelerator pedal. When hand pressed in, routes current to starter THROTTLE control knob is pulled to crank engine. On trucks with out it locks in any position. Turning LDS 427-2 engines the start button knob right or left unlocks it. is mounted on the cab floor. (Refer 2. ENG. STOP control. When pulled to para 4-2c, Driver’s Compartment out, stops engine by cutting off fuel. Controls and Indicators.) 3. ACCESSORY power switch. When in 6. Air filter indicator. Shows red when the ON position, routes power to the engine air filter needs cleaning. starter system, instrument panel 7. Windshield wiper control knob. When gages, fuel pump and low pressure turned to on position, starts wind- warning buzzer. shield wipers. 4. Light switch. Turns truck lights 8. MANIFOLD HEATER SWITCH. When on or off. set to ON position, starts manifold heater. Manifold heater is used to help start and warmup the engine when outside temperature is below +20°F . 4-2