Replacing The Push-Button Module - Otto Bock 490E75 Series Service Manual

Service work
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Removing the swivel mechanism and charging receptacle
1) Remove the control panel of the centre tray control (see Page 35).
2) Loosen and remove the 2 charging receptacle screws (see Fig. 51, item 1).
3) Loosen and remove the 4 screws of the swivel mechanism (see Fig. 52, item 1).
4) Remove the swivel mechanism and charging receptacle (see Fig. 52, item 2).
5) If necessary: Remove the stop (see Fig. 52, item 3). To do so, loosen and remove the 2 screws of the stop (see
Fig. 52, item 4).
Installing the swivel mechanism and charging receptacle
1) If necessary: Attach the stop (see Fig. 52, item 3). Insert and hand-tighten the 2 screws of the stop (see Fig. 52,
item 4).
2) Set the swivel mechanism and charging receptacle onto the tray from below (see Fig. 52, item 2).
3) Insert and hand-tighten the 4 screws of the swivel mechanism (see Fig. 52, item 1).
4) Insert and hand-tighten the 2 screws of the charging receptacle (see Fig. 52, item 1).
5) Install the control panel for the centre tray control (see Page 35).
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4.8.11

Replacing the push-button module

Prerequisites:
Switch off the control device and deactivate the main fuse (see Page 15).
Tools: Allen wrench size 3, 5
Removing the push-button module
1) Disconnect the stereo jack from the control panel (see Fig. 53, item 1). Remove the cable attachments if neces-
sary (see Fig. 53, item 2).
2) Pull the terminal box off the hook-and-loop fastener on the bottom of the seat plate (see Fig. 54).
3) Disconnect the 12 V signal lines from the terminal box (see Fig. 55, item 1).
4) Disconnect the 24 V connection from the terminal box (see Fig. 56, item 1).
5) Remove the rear cover (see Page 19).
6) Disconnect the 24 V connection from the controller and remove it (see Fig. 57, item 1).
7) Remove the push-button module (see Fig. 58, item 1).
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