Küschall® K-Series
6.8 Parking brakes
6.8.1 Installing the parking brake
Allen key (5 mm)
■■□
1.
Position the brake holder
B
around the front frame
tube
C
.
2.
Place the brake
D
in the brake holder.
3.
Screw the bolt
A
with washer into the brake assembly
but do not tighten.
4.
Rotate the brake holder assembly around the frame
tube to adjust the lateral distance of the brake.
5.
Rotate the brake in the brake holder to achieve a
horizontal position of the brake rod
E
to the tyre.
6.
Fully apply the brake and slide it towards the tyre until
the brake rod bears flush against the tire.
7.
Release the brake and slide it 3 mm backwards and
tighten the bolt.
A
= 13 Nm
6.8.2 Adjusting the parking brake
Allen key (5 mm)
■■□
WARNING!
Risk of injury
– The parking brakes must be readjusted whenever the rear wheels are replaced or the wheel camber is changed.
– The parking brake function is only guaranteed if the tyre has the corresponding inflation pressure.
1.
Check the tyre pressure in the rear wheels and correct
if necessary.
2.
Slightly loosen bolt
A
of the brake holder.
3.
Change the position of the brake assembly as described
in chapter
6.8.1 Installing the parking brake, page 38
4.
Tighten the bolt
A
.
IMPORTANT!
– The force to apply the parking brake must be 60 N
(maximum).
Very little force is required for activating and
deactivating the brake. If necessary, a brake lever
extension can be mounted.
Visual check
Check that the parking brakes are positioned correctly. The
brake is set correctly if the brake rod depresses the tire by
no more than 4 mm when the brake is applied. (In the
case of push/pull and standard brakes this will be the case
when the brake shoe is approx. 25 mm away from the tire
when released.)
Function check
Place a weighted wheelchair with parking brake engaged
facing uphill and then facing downhill on a ramp with an
incline of 7°. The wheelchair must not move.
38
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