6. After the removal of the reversing logic switch
mounting screws, the switch will drop away from the
reversing movable switch tube. See Figure 60.
7. Using a 9/16" wrench, loosen and remove the nuts
and flat washers from both of the reversing neutral
stationary contacts on the back of the tap-changer
contact panel. See Figure 61.
8. Pull the reversing movable contact assembly and the
reversing neutral stationary contact forward toward the
steel front panel as far as possible. See Figure 62.
9. Rotate the reversing movable contact counter
clockwise until the movable contact assemble
disengages from the reversing neutral stationary
contact and remove it from the tap-changer. See Figure
63.
10. Remove the reversing neutral stationary contact
assembly from the tap-changer contact panel.
Figure 61. Reversing neutral stationary contact hardware.
Reversing Neutral
Stationary
Contact Hardware
Figure 62. Removing movable contact assembly.
Reversing
Movable
Contact
Neutral
Reversing
Stationary
Contact
Figure 63. Removing reversing movable contact.
Neutral
Stationary
Contact
Removing
Reversing
Movable
Assembly
Reversing
Movable
Contact
Figure 60. Reversing movable contact switch.
Logic Switch
Reversing
Logic Movable
Contact Tube
25
QD5 QUIK-DRIVE TAP-CHANGER INSTALLATION AND MAINTENANCE INSTRUCTIONS
MN225012EN March 2016
