Nilfisk-Advance America SR 5120 P/B, SR 1200 P/B manual Safety Functions and TROUBLE- Shooting

SAFETY FUNCTIONS AND TROUBLE- SHOOTING

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.

S31NUK5120(3)2001-04

TO PUSH

TO DRIVE

SEE SAFETY CODE 333

SAFETY	MACHINE BEHAVIOUR	DESCRIPTION OF THE	POSSIBLE INTERVENTION
CODE		MALFUNCTION
	Stop of all functions except		Recharge the battery according to
205		The battery is empty	the instructions given in the
	traction
			Maintenance paragraph
			-If the machine run on a long ramp it
			could be normal: let the machine
			cooling 20 minutes
301	Stop of all functions and traction	Overtemperature of the drive motor	-Check the efficiency of the front
			and rear brakes
			-Check the rotation of the rear drive
			wheels
			-Check carbon brushes of traction
			motor
302	The machine does not start or, in	Possible problem with traction	-Check connection cables of
	the event it was working, will stop	control electronic circuit	traction motor
			-If the above is OK replace the
			power electronic board
			-If the ambient temperature is high
			let the machine cool down 20
305	The machine functions will stop	High temperature on the electronic	minutes
		control circuits (95 °C)	-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	-Make the same checks as per code
		control circuits (105 °C)	305
307	The machine does not start	Wrong start sequence	-Release the accelerator pedal
			before turning the key On
			-Check the cable connections of the
308	The machine does not start	Damage of the cable of	potentiometer for traction control
		potentiometer for traction control	- Check the potentiometer for
			traction control
		-Off status of the red key for the
		disabling of the self braking	-Insert the red key and turn it
		function (see the picture on the
333	The machine does not start		clockwise
		top page)
			-Check the motor cables
		-Possible trouble of motor kables
		(short circuit or open circuit)
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

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