VICI Two position Standard electric - Manual (Page 19)

2. Unplug the actuator. Use a 9/64 hex driver to remove the four HWSC-SC8-
6/screws (8-32 x 3/8") which hold the black right-angle mounting bracket to
the actuator. (Figure 13)
3. Use a pair of pliers to compress and remove the top two cable strain relief
devices from the actuator cover. They are at the points marked REMOTE
SWITCHING and MANUAL SWITCHING. Once they are out, pull them apart
and remove them from the cables to allow the cables to travel freely through
the holes in the cover.
4. Remove the four 4-40 x 1/4" slotted-head screws which secure the actuator
cover to the front casting. Slide the cover back far enough to allow the wiring
connectors to be pulled from the circuit board. Make careful note of their
location for reattachment later. Now remove the cover completely.
5. Place the actuator in front of you so that the square black motor is down
and away, and the front casting with the square valve drive shaft extending
through it is facing you. Use the 9/64 hex driver to remove the four 8-32 x
1" socket-head screws at the corners of the casting, observing that two of
these screws must pass through small sleeves which align this front casting
and the triangular casting. As the front casting is removed, the sleeves may
come with it or they may stay with the triangular casting. Locate and retain
both alignment sleeves.
6. Swing the entire crank assembly to one side, away from the body of the
actuator, and slide the triangular casting off of the crank assembly. (Figure
18)
7. The shaft crank is threaded on to the output shaft extending from the gear-
box. (See Figure 19) Since simply trying to unscrew the shaft crank will
only turn the output shaft instead, it is necessary to first break it loose by
placing the 1/2" open end or the adjustable crescent wrench on the shaft
crank and applying a sharp counterclockwise snap to break it loose. Once it
has been freed, it is an easy matter to unscrew it the rest of the way by
hand.
ALIGNMENT
SLEEVES
TRIANGULAR
CASTING
FRONT CASTING
SQUARE
DRIVE SHAFT
GEARBOX
6-32 SCREW IN
SHAFT CRANK
SHAFT CRANK
CIRCUIT BOARD
FLAG
OPTICAL SENSOR
REMOTE SWITCHING
CABLE
MANUAL SWITCHING
CABLE
MOTOR
MOTOR BRAKE
RELEASE
Figure 17: Identification of actuator parts
17