Otto Bock Nurmi Neo, Service Manual, Page: 20 / 27

19
Retrofit of the Driving Brake and Wheel Lock /
Assembling the Brakes (left and right)
First disassemble the reverse-roll lock as described
under 4.7.
Attach the brake bracket to the posterior frame and
fasten the bracket by re-attaching the reverse-roll
lock.
The open side of the bracket must face the non-dri-
ving direction.
Insert a screw with bushing through the lower bore
holes of the braket and close this screw connection.
Place the set collar on the longer side of the brake
bar and pull the brake bar through the upper bore
holes of the bracket.
Press an axle clamp cap on each end of the brake
bar.
Screw the set collar onto the brake bar so that the
brake bar can move up and down easily but not
laterally, or at least as little as possible laterally.
Stick a counter bearing onto each brake bar and each bushing. (Left figure) Turn a counter nut up to the
head of the longer of the two set screws and stick the set screws through the upper counter bearing. Se-
cure these set screws with another counter nut. Stick the shorter set screw from below through the lower
counter bearing and secure it with a counter nut. Now stick the cable housing from above through the longer
set screw, the compression spring and the shorter set screw. Tense the cable until the brake bar stands
approx. 2 mm (nickle coin) above the wheel. Pull the screw die on the cable up to the set screw and tighten
the screw die. Finally attach the cable end sleeve onto the cable and carefully squeeze the cable end sleeve
with cutting pliers to fix it.
Setting the Brakes:
The brake force must be checked and readjusted from time to
time. Unscrewing the upper set screws increases the tension and the brake force. The set screw is secured
in place by two counter nuts. With the brake levers engaged with the last tooth, the wheels must be secured
so that the gait trainer cannot roll away (parking brake). When the brake levers are released, the wheels
should run freely.