4 ADJUSTMENTS
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21
To adjust the back support angle:
1. Unscrew the nut (
B
) (
7/16 in. open-end wrench
) on each post.
(See Figure 6-B for Tango AC)
2. Stand behind the back support and remove the screw (
A
) on each side.
Caution: Once screws are removed, the back support can be folded completely
backwards.
3. Replace the back support screws in one of the (7) mounting holes on the adjustment
plate to achieve 90°, 95°, 100°. 105°, 110° or 120°, as shown in Figure 6-A.
4. Tighten the screw (
A
) and nut (
B
) on each back support post.
4.3.2. ADJUSTING BACK SUPPORT HEIGHT
Figure 7: Adjust the back support height.
Loosen the screw (
A
) (
7/16 in. open-end wrench
) on
each back support post. Choose the desired height by
aligning the threaded hole of the back support post with
the hole of the back support (H1 to H4) and firmly tighten
the screw (
A
).
Back support post
A
H1
H2
H3
H4