Page
50
5-5.1 TRIP LATCH OVERLAP ADJUSTMENT
Figure 5-5a shows a composite view of the shunt trip
lever and the trip latch, as described
in
Paragraph 4-4.
The angular position of the trip shaft latch surface
is
adjustable in relation to the trip latch surface. This
adjustment is made possible by a screw located
in
the
top of the actuator frame (Figure
5-5b).
The proper adjustment procedure is as follows:
1.
Close the breaker.
2.
Slowly rotate the adjusting screw clockwise until the
breaker trips. This is the "no overlap" position.
Dimension A
C -
--
1
.020
Minimum Both Sides
.~fl~·~m
C---
-
Breaker Closed
Figure 5-4 DSll-8401850 Contacts
and
Adjustments
l.B.
694C694-02
3.
Conclude by rotating the adjusting screw four turns
in
a counterclockwise direction.
5-5.2 BREAKER OPEN POSITION STOP
ADJUSTMENT {DSll-632 ONLY)
The proper adjust procedure is as follows:
1.
Refer to Figure 5-6.
2. Open the breaker and loosen the open position stop
bolt nuts so that the eccentric cylinders can be
turned by hand but will stay put.
Dimension C
0.42 ± .08
PinX
Breaker Open
0
0
0
81
0
0
D
D
0
0
D
0
Effective
07
/97
Courtesy of NationalSwitchgear.com
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