Assembly H: Wheel Lock/Brake; Adjusting The Wheel Lock; Replacing The Knee Lever Wheel Lock For 12"/16" Wheels; Replacing The Knee Lever Wheel Lock For 22"/24" Wheels - Otto Bock discovery tmax Service Manual

3.12 Assembly H: Wheel Lock/Brake

3.12.1 Adjusting the Wheel Lock

All instructions concerning the adjustment of the wheel lock/brake are included in the Instructions for Use (Quali­
fied Personnel) – order number 647G734.

3.12.2 Replacing the Knee Lever Wheel Lock for 12"/16" Wheels

INFORMATION
After changing the position of the rear wheel, the knee lever wheel lock must be adjusted by shifting it on the
frame.
1) Loosen 2 x Allen head screws on the clamp fitting of the knee lever wheel lock (see Fig. 92, item 1).
2) Remove and replace the knee lever wheel lock.
3) Glue the supplied anti-slip coverings in place on the inside of the clamp fitting (not illustrated).
4) Loosely attach the knee lever wheel lock to the base frame with the help of the clamp fitting and 2 x Allen head
screws (see Fig. 92, item 1).
5) Adjust the knee lever wheel lock:
→ For the preliminary adjustment, the knee lever wheel lock can be shifted/adjusted on the frame with the
help of the clamp fitting (see Fig. 92, item 2).
→ For the final adjustment, the knee lever wheel lock can be continuously shifted/adjusted in the slotted hole
(see Fig. 92, item 3/4).
→ When the wheel lock is not engaged, the gap between the tyre and the wheel lock bolt should be 5 mm
max. (see Fig. 93).
6) Tighten all Allen head screws to a torque of 10 Nm.
INFORMATION: After adjustment, the left and right knee lever wheel locks must both have the same
braking force.

3.12.3 Replacing the Knee Lever Wheel Lock for 22"/24" Wheels

INFORMATION
After changing the position of the rear wheel, the knee lever wheel lock must be adjusted by shifting it on the
frame.
1) Loosen 2 x Allen head screws on the clamp fitting of the knee lever wheel lock (see Fig. 94, item 1).
2) Remove and replace the knee lever wheel lock.
3) Glue the supplied anti-slip coverings in place on the inside of the clamp fitting (not illustrated).
4) Loosely attach the knee lever wheel lock to the side support of the seat frame with the clamp fitting using 2 x
Allen head screws (see Fig. 94, item 1).
5) Adjust the knee lever wheel lock:
→ For the preliminary adjustment, the knee lever wheel lock can be shifted/adjusted on the side support of the
seat frame with the help of the clamp fitting (see Fig. 94, item 2).
→ For the final adjustment, the knee lever wheel lock can be continuously shifted/adjusted in the slotted hole
(see Fig. 94, item 3/4).
discovery tmax
92
Service Work
max. 5 mm
93
Ottobock | 35