Control Unit; Replacing The Controller - Otto Bock 490E75 Series Service Manual

Service work
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4.8

Control unit

4.8.1

Replacing the controller

INFORMATION
Depending on the installed control unit and configuration, additional control modules work closely with the cont-
roller. When replacing the controller, also check the connected control modules and replace them if needed (see
Page 30).
Prerequisites:
Optional: Move the seat to the lowest seat height (see Page 15).
Switch off the control unit and deactivate the main fuse (see Page 15).
If necessary: Remove the legrests.
Tools: Allen wrench size 3
Removing the controller
1) Fold up the seat (see Page 16).
2) Remove the rear cover (see Page 19).
3) Fold down the seat (see Page 16).
4) Loosen and remove the 2 screws on the controller (see Fig. 27, item 1).
5)
Page
Disconnect all cables from the controller (see Fig. 27, item 2).
6) Remove the controller (see Fig. 27, item 3).
Installing the controller
1) Connect the cables to the controller according to their original installed position (see Fig. 27, item 2).
2) Carefully put on the controller (see Fig. 27, item 3).
3)
4) Attach the rear cover (see Page 19).
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24 | Ottobock
1 Nm (see Fig. 27, item 1).
490E75=0_C