Effective 4/00
IL 33-FX6-1
Page 10
B. Loosen the lock nut on the Trip Screw. Apply
Loc-Tite
®
243 to the threads, then turn the Trip
Screw until a gap of .06" to .09" is achieved
between the screw and the Breaker Trip Bar.
Tighten the lock nut on the Trip Screw.
GUARD AGAINST THE BREAKER UNINTEN-
TIONALLY CLOSING DURING THE FOLLOWING
STEPS. KEEP HANDS AND FINGERS AWAY
FROM MOVING PARTS WITHIN THE BREAKER.
FAILURE TO DO SO COULD RESULT IN SE-
VERE PERSONAL INJURY.
D. Check the cage height on the DTA Reset
Spring. The cage height should be .50". If the
cage height does not measure .50", turn the
Reset Spring Adjusting Nut until the correct
cage height is achieved.
Fig. 13 Correct Orientation of the DTA Reset Arm
GAP OF
.06” TO .09”
Fig. 14 Setting the Trip Screw to Breaker Trip
Bar Gap
C. Temporarily reinstall the Charging Handle and
“charge” the Closing Springs.
WARNING
ADJUSTING NUT
CAGE HEIGHT
.05”
Fig. 15 Adjusting the Reset Spring Cage Height
E. Release the Charging Springs.
F. Connect a 24 VDC power supply to the DTA
Wires; positive to positive and negative to
negative. Close the Breaker manually. Ener-
gize the DTA to trip the Breaker; de-energize
when the Breaker trips. Make certain that the
DTA resets. If the Breaker fails to properly trip
or reset, make the necessary adjustments to
insure a .06" to .09" gap between the top of
the DTA Trip Screw and the Breaker Trip Bar
(for Trip function) and .50" cage height on the
Reset Spring (for Reset function). Repeat the
procedure until proper trip and reset is
achieved.
