Replacing The Back Tubes; Replacing The Angle-Adjustable Back Tubes - Otto Bock Avantgarde CV Service Manual

3.9.3 Replacing the Back Tubes

1) Remove the push handles.
2) Remove the side panels.
3) Remove the back upholstery.
4) Remove the lower mounting screw(s) (depending on the version) from the rear frame (see fig. 87).
5) Remove the mounting screw for the side panel mounting (see fig. 88).
6) Remove the rear reflector and frame accessories from the rear frame (see fig. 89).
7) Remove/replace the back tube (see fig. 90).
8) To reassemble, perform these steps in reverse order. Tighten the screw connection evenly with 7 Nm.
87
89

3.9.4 Replacing the Angle-Adjustable Back Tubes

CAUTION
Missing anti-tipper
Tipping over of the user due to missing safety devices
► If the back is tilted far to the rear and in the case of a short wheelbase, 2 anti-tippers (one on each side) must
be mounted and in a functional position; in the case of a long wheelbase, at least one anti-tipper must be
mounted and in a functional position.
► Check that the anti-tipper is securely attached.
1) Remove the old back tube (see previous section).
2) Insert the angle-adjustable back tube into the rear part of the frame (see fig. 91).
3) Install the mounting for the side panel.
4) Tighten all mounting screws on the rear frame to 7 Nm.
5) Finally, adjust the angle on both back tubes in the same way (see fig. 92).
CAUTION! Ensure that the mounting screw is loosened enough to avoid damage to the ratchet mech­
anism.
Avantgarde CV / CS / CLT
88
90
Service Work
29