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4.14.5
Adjusting/replacing the back (VAS seat)
INFORMATION
Please note that adjusting the seat depth changes the centre of gravity. To ensure that the driving characteristics
are maintained, the seat depth after delivery of the power wheelchair may only be adjusted by 20 mm respectively
to the front or rear without additional conversion measures. For larger adjustments, the seat's centre of gravity
must be adjusted by sliding the seat frame and combination seat height and seat tilt adjustment module relative to
the drive platform. For further information, see Page 81 ff.
Prerequisites:
Switch off the control unit and deactivate the main fuse (see Page 15).
Remove the seat cushion and back padding.
Tools: Allen wrench size 6; torque wrench with Allen insert size 6
Adjusting/removing the back (VAS seat)
1) Remove the cover on both bearing plates (see Page 91).
2) Loosen the 2 screws in the bearing plates on both sides (see Fig. 196, item 1).
3) Adjust the back. If necessary, remove the cable attachments along the seat bars (see Fig. 196, item 2).
4) INFORMATION: Note the installed position of the cables, cable attachments and add-on components
of the back.
If necessary: Pull the back with the slide block down and off the seat bars. Loosen and remove all add-on com-
ponents for the back and cables with cable attachments.
Positioning/installing the back (VAS seat)
1) Position the back with the slide block on the seat bars and slide it to the desired position.
2) Firmly tighten the 2 screws in the bearing plates on both sides (see Fig. 196, item 1).
3) Reattach the cable attachments along the seat bars (see Fig. 196, item 2).
4) Reattach all loosened cables, cable attachments and add-on components for the back.
5) Install the cover on both bearing plates (see Page 91).
6) Check and adjust the seat's centre of gravity (see Page 81 ff.).
196
490E75=0_C
197
Service work
Ottobock | 93
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