Brakes And Brake Release; Accessories; Retrofitting With Mechanical Seat Tilt - Otto Bock B400 Service Manual

Service work
Properly reassemble all components upon completion of the work. Make sure the large steel
disc is positioned between the rocker arm and the driver bracket.
fig. 48 Rocker arm pivot

6.14 Brakes and brake release

The brake release units are located on the left and right sides of the motors. They are functional
components of the drive motors and cannot be repaired separately.
Should no braking effect be available, the motor must be replaced (see section 6.12).

6.15 Accessories

6.15.1 Retrofitting with mechanical seat tilt

Preparation:
❒ Remove the seat plate.
Tools:
❒ Allen wrench, sizes 2, 4, 5
❒ Ring or open-end spanner, sizes 10, 13
Steps:
1. Remove the plug from the frame.
2. Insert the lower receiver for the gas spring into the frame: on the left side into the frame cut-
out (fig. 49-1)/on the right side into the semi-oval frame hole (fig. 49-2).
3. Insert the Allen head screw from above. Slide on the supplied distance bushings from below
and secure with nuts (fig. 49-3).
Distance bushings must be used to prevent the frame warping.
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4. Insert an Allen head screw at the third attachment point of the lower gas spring receiver into
the existing bore hole beneath the drive unit bracket and tighten (fig. 49-4).
5. Remove the front seat bracket.
6. Mount the cross-brace for the upper gas spring receiver (fig. 49-5).
50 | Ottobock B400 Family