Cooper QD3 - Page 59

S225-12-1
59
!
SAFETY
FOR LIFE
9. Position the position actuator arm between the center
position and L by rotating the pinion counter clockwise.
(See Figure 175.) This will allow for mounting the micro
switches without interference with the micro switch
arms.
Figure 175.
Switch actuator position.
Actuator
L Switch
Pinion
10. Place and fasten the reversing logic and neutral logic
micro switch on the upper left of the drive assembly
panel. The micro switch with a blue white striped wire
and blue black striped is located on the R position.
The micro switch with a red white striped wire and red
black striped wire is located on the L position. The micro
switch with an orange wire and a white wire is located
on the center position between the R and L position.
(See Figure 176.)
L Switch
Actuator Arm
Neutral
R Switch
11. Rotate the pinion back clockwise until the arm in Figure
176 is in the center and the neutral switch is depressed.
Figure 176.
Logic switch positioning.
12. Connect the blue wires with red strips to the 40ohm
resistor by pushing the female connector on to the resis-
tor terminals. (See Figure 177.)
Figure 177.
Resistor connections.
Blue/Red Leads
Resistor
13. Check and set the tapchanger for neutral position. The
tapchanger can be set for any tap position by rotating
the pinion cam in either the clockwise or counter clock-
wise direction. For neutral position the reversing logic
switch actuator must be in the center with the neutral
switch arm depressed. The tap position lob must have
the pointer pointing at N. The pinion cam point is point-
ing at the three o’clock position over the holding switch
lever arm. The holding switch is open. (See Figure 178.)
Reversing
Logic
Switch
Tap Position
Lob Pointing
at N
Pinion Cam Pointing at
Three o'clock
Holding Switch Open
Re-Assembly of Tap-changer to
Voltage Regulator Assembly
Once the tapchanger has been reassembled, reverse the
process in the procedure titled “Tapchanger Removal from
Voltage Regulator” at the beginning of these installation
instructions.
Figure 178.
Neutral position.