Nilfisk-Advance America SR 5120 P/B - Manual (Page 28)

S31NUK5120(3)2001-04
The machine is equipped with many safety
devices and functions which have been
described in the USE paragraphs (both for petrol
and electrical versions). For instance the
automatic stop of all functions to avoid the deep
discharge of the battery has been mentioned;
and also the availability of a special red key for
the disengagement of the self-breaking function
has been notified: this is to be operated when the
machine must be pushed in Off condition.
Besides the intervention of other safety functions
is notified by means of dedicated safety codes
appearing on the display. These safety codes
are described in the following table.
SAFETY FUNCTIONS AND TROUBLE-
SHOOTING
26
TO PUSH
TO DRIVE
SEE SAFETY CODE 333
SAFETY
CODE
MACHINE BEHAVIOUR
DESCRIPTION OF THE
MALFUNCTION
POSSIBLE INTERVENTION
205
Stop of all functions except
traction
The battery is empty
Recharge the battery according to
the instructions given in the
Maintenance paragraph
301 Stop of all functions and traction Overtemperature of the drive motor
-If the machine run on a long ramp it
could be normal: let the machine
cooling 20 minutes
-Check the efficiency of the front
and rear brakes
-Check the rotation of the rear drive
wheels
302
The machine does not start or, in
the event it was working, will stop Possible problem with traction
control electronic circuit
-Check carbon brushes of traction
motor
-Check connection cables of
traction motor
-If the above is OK replace the
power electronic board
305 The machine functions will stop
High temperature on the electronic
control circuits (95 °C)
-If the ambient temperature is high
let the machine cool down 20
minutes
-If the problem will remain call the
technical service to check the
electrical motors
306 Stop of all functions and traction
High temperature on the electronic
control circuits (105 °C) -Make the same checks as per code
305
307 The machine does not start Wrong start sequence
-Release the accelerator pedal
before turning the key On
308 The machine does not start
Damage of the cable of
potentiometer for traction control
-Check the cable connections of the
potentiometer for traction control
- Check the potentiometer for
traction control
333 The machine does not start
-Off status of the red key for the
disabling of the self braking
function (see the picture on the
top page)
-Possible trouble of motor kables
(short circuit or open circuit)
-Insert the red key and turn it
clockwise
-Check the motor cables
800 Display flashing Main brush worn -Replace the main brush
E10 Flashing display
Main broom is blocked Remove the main broom and clean
all dirty parts