0
R33
23
6
Adjustments carried out by the
authorized dealer
6.1
Back height adjustment
1
Figure 21
Remove the adjustable backrest cover and the top Velcro®
band.
Slide the remaining Velcro® bands up or down, until the
spring clip positioned in one of the holes is visible.
Press the spring clip into the tube.
Adjust the backrest tube up or down into the required
position.
Repeat this procedure on the other side of the backrest.
Attach the Velcro® band and re-assemble the adjustable
backrest cover.
6.2
Backrest angle adjustment
Figure 22
Fold down backrest, loosen the counter nut of the placement
bolt and tighten the bolt completely.
Loosen the lens head bolt .
Remove excenter, turn or flip and turn to create correct
angle.
Replace and retighten bolt .
Open the backrest up, until the bolts click into place.
Unscrew the placement bolt until it rest against the frame
and the backrest joint no longer has any leeway.
Retighten the counter nut.
The position of the backrest angle must be the same on
both sides of the chair.
