Eaton QD5 Manual page 51

4. Using a 3/8" socket on a ratchet, rotate the shaft on the
back of the motor to move the movable contacts into
the space opened up when the number 1 stationary
contact was removed.
Figure 131. Main movable contacts in number 1 station-
ary position.
5. Remove the two bolts that mount the actuator finger
with a 7/16" socket wrench. Remove the actuator finger.
Refer to Figure 132.
Remove These
Two Bolts
Figure 132. Actuator finger.
6. Remove the nut on the end of the main shaft using
a 3/4" socket wrench. Use a 5/8" open end wrench
positioned on the flats of the main shaft to hold the
shaft in place during this procedure. Refer to Figures
133 and 134.
Figure 133. Fastening nut for main shaft.
Figure 134. Main shaft.
Actuator
7 . Push the main shaft from the threaded end partially
Finger
through the steel front plate of the tap-changer so
that the retaining ring on the main shaft is centered
between the movable contact panel and the washer/
Geneva gear hub. Refer to Figure 135.
Movable Contact
Panel
Figure 135. Shaft positioning.
Retaining Ring
Nut on the end
of the Main Shaft
Main Shaft
Flats on the
Main Shaft
Washer
Geneva Gear
Hub
47