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In the diagram, above the MicroSwitch is shown with the panel removed from the lower
section of the unit to show B and C screw positions. This section houses the terminal strips,
the power terminal block and the printer connection.
To open the door of the unit you need to undo screws D and E. Rotate each screw one quarter
turn anti-clockwise and release the catches. Once the unit has been put in place all three
screws A, B and C must be tightened firmly. To access B and C you need to remove the cover
from the bottom panel of the unit.
NOTE: If you have more than 16 extensions then you need to remove one pair of modules
(Pair 4 in Figure 2-2), to access screw A. To unplug the modules you need to
remove the top and bottom strips F and G by undoing the screws at either end of
the strips.
Failure to tighten screws a, b, c firmly may cause the unit to loosen from its
mountings during continued vibration and so cause damage to the cabinet
and/or the modules.
2
1
B
Figure 2 MicroSwitch Unit - Front View
WARNING
A
4
3
,167$//$7,21
F
5
G
C
D
E
7
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