Siemens RM400 C Series Operating Manual page 84

6
Online replacement (OLR)
Taking the back cover off the RM400 BG31/32 peripherals cabinet
Figure 44: Taking off the back cover of the RM400 BG31/32 peripherals cabinet
To discourage unauthorized persons from opening the back cover, it is possible to
secure the locking mechanism in such a way that the release buttons at the top left
and right of the back cover (indicated by arrows) cannot be pushed in. If this has
been done you will first have to free the release buttons as follows:
Insert a T20 Torx screwdriver or a 4 mm slit screwdriver into the hole in the
Ê
release button (as shown on the left-hand diagram) and turn the sunk screw
clockwise as far as it goes.
Ê Now press the release buttons, tilt the back cover downwards away from the
cabinet, and lift it out of its groove.
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RM400 C Models U24802-J-Z146-2-7600