Chapter 2: Installation 2.2 Installation with Cassette
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2 Insert the lower retaining spring as shown in the figure below, holding the
cassette with your thumb and pressing the spring down with your index
finger or a screwdriver if necessary.
3 Repeat step 2 for the upper retaining spring.
Figure 5 Mounting the Retaining Springs.
Removing the Cassette
Removal is the reverse of installation. Proceed as follows:
1 Press the front part of the lower retaining spring back. If the mounting panel
is thick it may be necessary to use a screwdriver to do this.
2 Lever the retaining spring out.
3 Repeat steps 1 and 2 for the upper retaining spring.
4 Withdraw the cassette from the panel cutout.
Figure 6 Removing the Controller Unit.
Click!