Installation procedure
VL reversing stationary contact removal and 
installation
1.   Each QD5 tap-changer has one VL reversing stationary 
contact. See Figure 87.
2.  If the reversing movable contacts are setting on the 
VL reversing stationary contact, place a 3/8" socket 
onto the rear shaft of the motor. See Figure 88. Using 
a ratchet, rotate the motor shaft counter-clockwise 
to move the reversing movable contacts off of the 
reversing stationary contact. It may be necessary to 
rotate the tap changer through several positions before 
the movable reversing contact will begin to move.
QD5 tap-changer VL reversing stationary 
contact assembly kit  
number 5791646A25
(Refer to Service Information MN225027EN)
General
The purpose of this replacement kit is to provide the parts 
and installation instructions for replacement of the VL 
reversing stationary contacts on a QD5 Quik Drive tap-
changer.
Parts supplied
Item Part Number Description Qty
1 0791646A25 VL Reversing Stationary 
Contact
1
Tools required
• 
Ratchet Wrench
• 
9/16 inch Deep-well Socket
• 
Torque Wrench in-lbs
• 
3/8 inch Socket
Figure 86. VL reversing stationary contact.
Figure 87. VL reversing stationary contact location.
VL Reversing  
Stationary Con-
tact
VR Reversing  
Stationary Contact
Reversing Neutral 
Stationary Contact
Figure 88.  Motor and reversing movable contact 
rotation.
Motor Shaft
33
QD5 QUIK-DRIVE TAP-CHANGER INSTALLATION AND MAINTENANCE INSTRUCTIONS   MN225012EN   March 2016