Fig.3.37.The adjustment screws pump (motor CD20): 1 - the screw limits the maximum speed;2 - the screw of the damper actuator controlling the supply of fuel;3 - screw limit idling speed;
4 - Screw the maximum fuel delivery
Warm up the engine to operating temperature and measure the engine speed to idle. To adjust, loosen the lock nut and the screw 3 (Fig. 3.37), set the desired speed of the shaft (see. Table. 3.12), then tighten the lock nut.