VICI Selectors (multiposition) Standard electric - Manual (Page 12)

0 Actuator Modifications
Reassembly
1. Using Figure 8 and the preceding description, identify the slot on the
replacement encoder disc which determines Position 1. With the motor
toward you and the casting away, install the new encoder disc oriented
as in
Figure 8, with the strobe bit of Position 1 vertical. (The part number
should be facing you. In the case of the “x 2’s”, either Position 1 bit may
be vertical.) Be sure to use the correct number of washers between the
disc and shaft, so that the disc is positioned midway between the emitter
and the encoder boards.
2. Position the circuit board assembly and reinstall it with the two 8-32 x 3/4”
screws.
NOTE: If the assembly has come apart, make sure the
spacers are in the proper arrangement: The two shorter
spacers go between the assembly and the gearbox.
Also check at this point to make sure that the disc is not
bent in such a way that it will come into contact with the
board as it revolves.
3. Change the label on the cover to reflect the new number of positions.
Put the cover partially on and reconnect the ribbon and power cables to
the board in the motor assembly. It is necessary that they cross inside
the cover.
4. Hold the ribbon and power cables out of the way against the transformer
as the cover is repositioned over the motor assembly. Put in the four
4/40 x 1/4" phillips head screws which hold the cover in place.
5. Plug in the actuator and step it through all its positions to see that it
works properly.
6. Consult the section entitled “Alignment Procedure” on page 13 for help in
properly installing and aligning the new valve on the actuator.
Consult the factory if additional help is needed.
Reversing the Direction of Rotation
Tools you will need:
1. 9/64 hex driver
2. 7/64 hex driver
3. #1 or #0 phillips screwdriver
Disassembly
Follow the steps for disassembly on page 7. However, before removing
the encoder disc as described in Step 6, use a felt pen to mark the point
on its radius that is at 12 o’clock. If Step 1 was observed and the actuator
was switched to HOME, this will be at the notch (strobe bit) that denotes
Position 1.