Maintenance
5583−1/A1
Winterthur Gas & Diesel Ltd.
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Fuel Pump Actuator
Connection to Fuel Pump
1. General
The Heinzmann WEA−40 electrical actuator connects to the regulating rack of the
high−pressure fuel pump to regulate the fuel flow to the engine and thus the common
rail pressure.
Table 1 − Sense of rotation − Engine specific
Engine Type Sense of
Rotation
Input
Signal
Order Number
RT−flex50DF CW PWM 504−00−100−13
RT−flex68−D CCW mA 504−00−100−16
W−X62/DF CCW PWM 504−00−100−14
W−X72/DF CCW PMW 504−00−100−14
W−X82/DF CCW mA 504−00−100−16
W−X92/DF CW mA 504−00−100−15
CW − Clockwise rotation
CCW − Counter clockwise rotation
Note: Make sure that the cable glands of the actuator are correctly tightened.
Make sure that the gasket on the top cover of the actuator terminal box is
in the correct position the bolts are tight. It is imperative that no foreign
particles or liquid can enter the actuator.
Fuel Pump Actuator: Connection to Fuel Pump
2020