BR/BD 75/140 R, BR/BD 90/140 R
Troubleshooting
Page 67 / 71
New Unit Information 03.2004
Safety checks
Seat contact switch (S16)
The seat contact switch (S16) should be chec-
ked every 100 hours.
1. Turn key switch to position “1”.
2. Select the direction of travel.
3. Do
NOT
load the seat.
4. Lightly press on the drive pedal.
The unit must not move. If it does, check the
function of the seat switch (S16), replace if ne-
cessary.
Parking brake
The parking brake on the front wheel should be
checked each time before using the unit.
1. Load the seat.
2. Turn the key switch to position “1”.
3. Select the direction of travel.
4. Lightly press on the drive pedal.
The Parking brake must audibly unlock and the
indicator light on the control panel must go out. If
this is not the case check the brake lever for
easy movement and readjust the brake as ne-
cessary. Additionally check the voltage supply
to the magnet brake and also the wires to the
main control printed circuit board, replace as
necessary.
Braking function
If the mechanical brake in the front wheel fails the
motor brake acts automatically, so that in the
worst case with maximum speed 2.4 km/h the
unit rolls down an incline with a constant speed
(slow walking pace).
The central battery connector must never be
unpluged, otherwise the braking action fails.
Allow the unit to roll to a horizontal level and then
adjust the brake.
REVISED
