46
EntelliGuard R Circuit Breaker Retrofill AKD-8 Installation Manual DEH41549 R05
5.
Slide off the retainer clips.
6.
Take off the main retainer from the stud.
7.
Slide the main retainer over the stud.
8.
Set a pair of bow-tie spacers into a pair of fingers, place a pressure plate retainer over the spacers to
hold them in position, and then turn the subassembly over. Hook them into the main retainer.
9.
Slide a long bolt through the hole in the retainer, between the finger, and then through the clip and
stud spacer.
10.
Hold the bottom finger subassembly in place.
11.
Place two fingers around the bolt from the top, hooking the fingers into the main retainer. Then place
a bow-tie spacer in each finger and hold them in position with a pressure plate retainer.
12.
Place a spring, bushing, and flat washer over the bolt, then secure with the Adjusting nut.
13.
Repeat Steps 7 through 13 for each set of fingers.
14.
Adjust the nut to get a spacing of 0.865-0.895 inch for AKR75/75H with Double springs and 0.766—
0.797 inch for AKR100/125 between the top of the upper retainer and the bottom of the flat washer.
15.
Clean finger assemblies, if necessary, with a clean, lint-free rag and isopropyl alcohol or acetone.
16.
Be sure to apply a thin film of Mobilgrease 28 (D50HD38) to the contact areas which slide onto the
switchgear stabs (See
Figure 37/38
, Step 2). This product is available in a 1-oz tube,
GE Part #193A1751P1.
17.
Figure 37 (AKR75/75H) and figure 38 (AKR100/125)
summarizes the steps for working with the
primary contacts.
Figure 37. Steps in Exploded Views (AKR-75/75H)