Eaton NRX Serie Montageanweisungen Seite 2

Instructional Leaflet IL01301011E
Mounting Screw
Figure 2. Counter with Mounting Screw
Counter Lever
Figure 3. Counter Lever Mounted with Screw and Hex Nut
Section 2: Installation of operation counter
Proceed with the following 11 steps:
Step 1: Remove the four screws holding the front cover in
place (two on each side of the cover).
Figure 4. Step 1
Step 2: Remove the front cover. Pull down on the charging
handle to simplify removal.
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Counter
Shaft
Front
View
Screw
Hex
Rear
Nut
View
Figure 5. Step 2
Step 3: If the counter lever is already loosely installed on
the counter shaft as shown in Figure 3, skip Step 3 and go
to Step 4. If the counter lever is not loosely installed on the
counter shaft, proceed with Step 3. Loosely install the coun-
ter lever on the counter's shaft (Figure 2) using the provided
M2 x 0.4 screw and nut. The screw should not be torqued
tight at this point to permit movement of the counter lever on
the shaft.
Counter
Figure 6. Step 3
Step 4: Make certain that mechanism springs are discharged
and the breaker is open before proceeding. Install the counter
assembly, which includes the counter and the loosely mount-
ed counter lever, onto the top of the counter bracket using
the single M3 x 0.5 mounting screw. The counter bracket is
located on the breaker front and has a threaded hole for the
mounting screw. Torque the mounting screw to 44 in-oz (0.31
Nm).
Effective September 2010
Counter
Lever
Counter
Shaft