20
21
9 Settings backrest 3A, monoangular back
9 Settings backrest 3A, biangular back
9:3
Adjusting back support height and lumbar angle
1-2. Remove the protective cover and loosen the
locking screw (A) max. 1 turn (see also illustration
1 on page 20).
3. Adjust the back support height using the grad-
uation and the marking on the lower back rod.
4. Move the Allen key to the eccentric shaft‘s key
handle (B).
5-6. Install desired lumbar angle.
7. Tighten the locking screw and fit the protec-
tive cover as in illustration 5-6 on page 20.
3
5
6
1
1
5
5
1
1
5
5
1
1
5
5
1
1
5
5
1
1
5
5
4
1
1
5
5
1
1
5
5
A
1-2
1
1
5
5
B
Risk of tipping: Always
check the positioning of
the anti-tips after adjusting
the backrest upholstery.
Tools: Allen key 5 NV.