If the steel splitter plates have more than 0.25 inch of mate-
rial eroded away at the top of the V-shaped slots, the arc
chutes should be replaced. This can be determined by com-
paring a plate near the center with a plate near the end.
5-4.6 Power Operated Mechanism
Examine the driving face of the oscillator pawl (Figures 4-5
and 4-6). Normal operation of the spring charging mecha-
nism will result in the removal of plating from the face of the
pawl. If the face is chipped, distorted or broken, it should be
replaced.
5-5 Factory Adjustments
NOTICE
THESE ADJUSTMENTS ARE REQUIRED ONLY WHEN A MAJOR
OVERHAUL HAS BEEN PERFORMED, NOT DURING NORMAL
MAINTENANCE PROCEDURES.
Type DSII Circuit Breakers are designed and built with very
few adjustable parts. The operating parts and frame mount-
ing parts are accurately tool made for automatic and accu-
rate assembly relationships. The parts
Dimension A
.020 Minimum Both Sides
Breaker Closed
Dimension C
Breaker Open
Figure 5-2 DSII-516/620 Contacts and Adjustments
Effective July 2010
Instructional Book IB694C694-03
54
EATON CORPORATION www.eaton.com
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