SERIES 70 ELECTRIC ACTUATOR
Installation, Operation, and Maintenance Manual
42 of 48
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Install the potentiometer next to the indicator shaft where two threaded holes are
provided for installation
Align the raised green rib on pot gear with the center line of the indicator shaft
Push the assembly towards the cam to mesh the gears then tighten the mounting
screws
Rotate the actuator handwheel so that the red cam lobe is facing the body of the
potentiometer Make sure that the cam is not touching the potentiometer assembly
Readjust the assembly position if necessary
Cut the terminal marker to fit the -pole terminal strip
Mount the -pole terminal strip and marker on the switch plate
Wire the potentiometer to the terminal strip using the new wiring diagram
Adhere the new wiring diagram sticker to the inside of the cover
NOTE
Factory will need wiring diagram drawing number and model of the existing unit
if it is to be retrofit with a potentiometer New wiring diagram will be provided
based upon this information
To ensure the potentiometer assembly was properly calibrated the pot voltage
can be measured at each state using the wiper wire (orange) and the common
wire (white) At open position (green cam engagement) it should read between
- VDC At close position (red cam engagement) it should read between
- VDC
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