Safety Functions; Safety Microswitch; Main Brush Safety Device - Nilfisk SR1005B Mode D'emploi Et D'entretien

SAFETY FUNCTIONS AND
TROUBLESHOOTING CODES

SAFETY MICROSWITCH

It is activated when the seat cover is lifted , and it
stops all functions. (Fig. 22)

MAIN BRUSH SAFETY DEVICE

The operator has to lift the cover to reach the lid
latch of the main broom compartment. When the
cover is lifted the microswitch is activated and the
main broom stop. (Fig. 21)
If the safety functions are activated the
multifunction display on the control panel will
show the corresponding safety codes. (as shown in
the chart below).
SAFETY CODE-EVENT
190:
batteries discharged
302:
trouble with the electronic
control of the drive function
306:
over temperature on the power
electronic board
307:
incorrect machine-starting
sequence: the accelerator paddle
was out of the neutral position
when turning on the key.
308:
the wires of the potentiometer
are cut
The machine has a shut down device for current overload conditions. If the battery voltage exceeds 28 Volts as
indicated on the display, the machine will stop.
MACHINE BEHAVIOR
All machine functions
automatically stop, except the
traction
The machine automatically stops. Before replacing the main
All machine functions
automatically stop.
The machine is not able to work Put the accelerator paddle in the
The machine is not able to work 1 Check the wire connections of
POSSIBLE INTERVENTION
Recharge the batteries
electronic board:
- Check the good insertion of the
two relays lodged on the main
electronic board; eventually
replace relays
- Check the operation of the
drive motor and of its carbon
brushes.
Turn-off the key and wait for the
electronic board to cool (at least
20 minutes). Then check that the
rotation of the drive motor and
the broom motor(s) is/are free.
It could be useful to reduce the
pressure of the broom on the
floor.
Check front brake
neutral position. In the event
that the 307 code is still flashing
a check of the two microswitches
dedicated to the forward/reverse
drive control must be done (call
a service personnel).
Make sure that the paddle
returns to the idle position when
released.
the potentiometer dedicated
to the speed control.
2 If the potentiometer wire
connections are good replace
the potentiometer (call a
service personnel)
8
56041505(2)2001-01
NOTES
For further details see the
workshop manual or call a
service personnel.
If the 306 code occurs frequently
call a service personnel.