8. Use a pair of lineman's pliers to remove the retaining
ring. Slide the washer up against the movable contact
panel. Refer to Figure 136.
9. Push the threaded end of the main shaft through the
steel panel toward the molded panel. Support the
Geneva gear with one hand and pull the main shaft out
from the back of the molded panel until the main shaft
is out of the Geneva gear hub. Make sure the washer
remains on the shaft and does not fall into the tank.
Remove the Geneva gear and slide the washer off the
shaft. Refer to Figure 137.
10. Pull the main shaft completely out of the back of the
molded panel. Pull the contact rings out of the button
contacts and remove the movable contact panel
assembly. Refer to Figure 138.
11. Remove the three button head screws, nuts and
washers that secure each contact to the movable
contact panel using a 5/32" hex wrench and a 7/16"
deep well socket wrench. Refer to Figures 139 and 140.
otee:
N
The center button head screw on each movable
contact assembly has a flat washer and a Belleville
washer under the nut.
Figure 137. Removal of shaft.
Figure 138. Removal of main contacts.
Button Contacts
Figure 139. Movable contact removal from insulating
arm and rings.
Button Head
Screw
Movable Contact
Assemblies
Figure 136. Washer.
Washer
48
QD5 QUIK-DRIVE TAP-CHANGER INSTALLATION AND MAINTENANCE INSTRUCTIONS
MN225012EN March 2016
