42
EntelliGuard R Circuit Breaker Retrofill AKD-8 Installation Manual DEH41549 R05
Remove and Replace
The primary disconnect assembly is factory-adjusted to apply a 95 ± 10 lb. force to a 1/2-inch thick copper
bar, inserted between the upper and lower fingers. Set this force range, in the field, by tightening the nuts to
set the spring dimension shown in
Figure 31
. Note that this dimension is measured between the top of the
retainer and the underside of the washer. Also note that no bar is inserted between the fingers when setting
this dimension.
Figure 32
shows the cluster components.
Figure 31. Adjustment
Figure 32. Components
1.
Using proper safety procedures and wearing required Personal Protective Equipment (PPE), remove
breaker from compartment, and place it on a solid work surface in a well-lit location.
2.
To uninstall the primary disconnects, remove the two nuts from one of the long bolts holding the primary
disconnect assembly together.
3.
Carefully slide out the bolt while removing the flat washer, spring, bushing, upper retainer, bow-tie
spacers, lower retainer, and fingers from the bottom of the assembly.
4.
Do the same for the other assembly bolt and components.
5.
Slide off the retainer clips.
6.
Take off the main retainer from the stud.
7.
Slide the main retainer over the stud.
8.
Install eccentric spacer and position spring clips on the stud.
9.
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.
10.
Slide a long bolt through the hole in the retainer, between the fingers, and then through the clip and
eccentric stud spacer.
11.
Hold the bottom finger subassembly in place.
12.
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.
13.
Place a spring, bushing, and flat washer over the bolt, then secure with the two nuts.
14.
Repeat Steps 7 through 13 for each set of fingers.
