Cooper QD3 - Page 71

S225-12-1
71
!
SAFETY
FOR LIFE
10. Place and fasten the reversing logic and neutral logic
micro switches on the upper left of the drive assembly
panel. The micro switch with a blue white striped wire
and blue black striped wire 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 221.)
11. Rotate the pinion back clockwise until the arm in
Figure 221 is in the center and the neutral switch is
depressed.
12. Connect the blue wires with red strips to the 40ohm
resistor by pushing the female connector onto the
resistor terminals. (See Figure 222.)
Figure 221.
Logic switch positioning.
Neutral
Actuator Arm
R Switch
Figure 222.
Resistor connections.
Resistor
Blue/Red Leads
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
clockwise direction. For rotating to the 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 pointing at the three o’clock position over the
holding switch lever arm. The holding switch is open.
(See Figure 223.)
Re-assembly of Tap-changer to
Voltage Regulator Assembly
1. 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 223.
Logic switch positioning.
Reversing
Logic
Switch
Tap Position
Lob Pointing
at N
Pinion Cam
Pointing at
Three o'clock
Holding Switch
Open