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Operating instructions SPEEDY F4 & F2
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.
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.
M5 fixing screws
Figure 131: 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 bolt and the tyre.
Brake
holding rail
Figure 132: Distance between the brake bolt 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
product should stand firm with the brake
applied. This will happen if, with the brake
applied, the tyre is depressed or deformed
by approximately 4 mm by the brake bolt
(at prescribed air pressure in the tyres).
When the brake is open, the distance
between the braking bolt 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. For
this purpose, you need a slotted
screwdriver and an open-ended spanner
(AF 8 mm). The screw is retained at the
front with the slotted screwdriver and the
open-ended spanner (AF 8 mm) is used to
either screw tight or to loosen a little. 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 joint screws
Figure 133: M5 joint screws for setting the actuating
force of the brake lever
Generally, the braking bolt is mounted in
the standard position (see following figure).
The assembly of the braking bolt in the other
possible position (see following figure) may be
necessary after the adjustment of the drive
wheels.
48
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