TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
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TM 9-2320-361-24-1 0003 00 0003 00-12 THEORY OF OPERATION (Contd) 0003 00-12 ENGINE CONTROL SYSTEM Engine Control System Operation: The engine control system consists of mechanical linkage connecting driver’s controls to the fuel injector pump. The major components of the engine control system are as follows: ENGINE STOP CONTROL – Cuts off fuel supply to engine when pulled. HAND THROTTLE CONTROL – Sets engine speed at desired RPM without operator maintaining pressure on accelerator pedal. ACCELERATOR PEDAL – Controls engine speed. ACCELERATOR LINKAGE – Links accelerator pedal and throttle control to fuel pump. The components of the accelerator linkage are: 1. Injection Pump Lever 2. Accelerator Rod 3. Return Spring 4. Pivot Lever D C B A LATE MODEL EARLY MODEL B B A B C D A A 4 1 2 3