78
NDX VALVE CONTROLLER
•
Remove the device from the actuator mounting
bracket if there is limited working space in front
of the prestage cover (Disconnect the supply and
actuator piping if device is needed to remove).
•
Remove the main cover by loosening 4 screws.
Fig. 90 NDX1510_
Fig. 91 NDX_511_ and NDX_512_
þ Loosen the display screws and remove display.
(Fig 91, Fig 92)
Fig. 92 NDX1510_
Fig. 93 NDX_511_ and NDX_512_
þ Loosen the prestage cover screws and remove the
prestage cover (Fig 93, applies to NDX1510_ only)
þ Unplug the prestage wire connector from the
prestage.
Fig. 94 NDX_510_
þ Loosen the electronics module screws and
grounding screws (NDX_511_ & NDX_512_), then
remove the electronics module. (Fig 94, Fig 95)
Fig. 95 NDX_510_
14 MAINTENANCE
