Usage instructions SPEEDY 4all & 4you & 4teen
55
25.1.2 Brake adjustment on the SPEEDY
4all, SPEEDY 4you and SPEEDY
4teen models
The following instructions are intended
for and may only be carried out by a rehabilita-
tion specialist dealer or PRO ACTIV
Settings on the brake could be necessary for
the following reasons:
You have changed the tyre or the tyre
pressure.
You have changed the wheel tracking or
the position of the drive wheels.
The brake is pulling unevenly or insuffi-
ciently after extended use.
To adjust the knee lever brake, proceed as
follows on both sides:
1. Initial situation: Drive wheels mounted on
the product and the knee lever brakes
open. The drive wheels have the specified
inflation pressure.
2. For the
correct positioning
of the knee
lever brake, slightly loosen the M5 clamp
screws (AF 4 mm) so that the knee lever
brake can be moved on the brake holding
rail.
Figure 154: M5 fixing screws on the brake holding
rail
3. Position the opened brake on the brake
holding rail so that there is a distance of
between approx. 3 to max. 4 mm between
the brake pin and the tyre.
Figure 155: Distance between the brake pin and
tyre of from approx. 3 to max. 4 mm with the brake
opened
4. Tighten the M5 fixing screws (AF 4 mm)
again to 4 Nm.
5. Then check the correct setting of the
brakes: On a slope (7° gradient) the prod-
uct should stand firm with the brake ap-
plied. This is the case if, with the brake
applied, the tyre is depressed or deformed
by approximately 4
mm by the brake pin
(at the specified tyre inflation pressure).
When the brake is open, the distance be-
tween the brake pin and the tyre is approx.
3 to maximum 4 mm.
6. The
actuating force
of the brake lever can
be adjusted using the M5 joint screws and
M5 nuts. For this purpose, you need a slot-
ted screwdriver and an open-ended span-
ner (AF 8 mm). The screw is held at the
front with the slotted screwdriver and the
open-ended spanner (AF 8 mm) is used to
tighten or loosen the nut at the rear. An
important point here is that both joint
screws must be tightened equally as this
leads to a long-lasting uniform actuating
force of the brake lever.
M5 fixing screws
Brake holding
rail
