TM 9-2320-209-10-1 c. Driver’s Compartment Controls and Indicators. 1. Accelerator pedal. Controls engine 4. Engine STAR T button (on trucks speed. with LDS 427-2 engines). When 2. Dimmer switch. Raises or lowers pressed in, routes current to starter head light beam. to crank engine. (On trucks with LD 465-1 engines the start button is 3. Clutch pedal. Is pressed in before mounted on the instrument panel. shifting gears. Refer to para 4-2a, Instrument Panel Left Side Controls and Indicators.) 5. Service foot brake. When pressed in, slows down and stops truck. 4-5