Husqvarna PG530 manuel dutilisation Problem Possible Cause Potential Solution, Onto

Faults and trouble shooting

Further problems that may be experienced when using the grinder and potential solutions are as follows:

Problem	Possible Cause	Potential Solution
GRINDER IS HARD TO HOLD	Not enough diamonds under the machine	Increase number of diamonds under machine
ONTO	(if grinding thick glue or soft floors, too	to reduce load on grinder and operator.
	few diamonds under the machine will
	greatly increase the load on grinder and
	operator). Usually also accompanied by
	high current draw by large motor.
	Large motor not working (this can be	Check large motor is plugged in. Check there
	caused by fault with motor, fault with wir-	are no faults on larger variable speed drive or
	ing to motor, or fault with large variable	frequency converter. Check that large vari-
	speed drive or frequency converter).	able speed drive or frequency converter is
		on. Check that large variable speed drive or
		frequency converter is functioning properly
		(unplug both motors, set display on keypad to
		Output Frequency, switch machine to RUN,
		see if numbers on screen change from zero
		and begin counting up. If numbers stay on
		zero, large variable speed drive or frequency
		converter is not receiving run command from
		switch on control panel. Machine needs to be
		checked by an electrician or by Husqvarna
		Construction Products.
	Drive belt is slipping.	Remove belt tensioner cover plate on bottom
		of machine and check there is no water or dust
		on the inside of the machine that may be caus-
		ing the belt to slip on the drive pulleys.
	Drive belt is broken (this can be con-	Replace internal drive belt.
	firmed by turning one of the grinding
	heads by hand. If all grinding heads rotate
	together, belt is not broken. If only one
	grinding head turns, belt is broken).
GRINDER SOUNDS LIKE IT IS	Small planetary drive motor not plugged	Check small planetary drive motor is plugged
OVER REVVING	in.	in.
	Small motor not working (this can be	Check small motor is plugged in. Check there
	caused by fault with motor, fault with	are no faults on small variable speed drive or
	wiring to the motor, or fault with large vari-	frequency converter. Check that small vari-
	able speed drive or frequency converter).	able speed drive and frequency converter is
		on. Check that small variable speed drive or
		frequency converter is functioning properly
		(unplug both motors, set display on keypad to
		Output Frequency, switch machine to RUN,
		see if numbers on screen change from zero
		and begin counting up. If numbers stay on
		zero, small variable speed drive or frequency
		converter is not receiving run command from
		switch on control panel. Machine needs to be
		checked by an electrician or Husqvarna Con-
		struction Products.
GRINDER IS JUMPING AROUND	Grinding heads may be worn-out or	Check grinding heads for broken parts or
	damaged.	excess movement.
	Diamonds may not be fitted correctly or	Check to ensure all diamonds are fitted cor-
	different height diamonds may be on the	rectly and are the same height.
	grinding heads.
	Head locks may be loose or missing.	Check to ensure all head locks are present
		and tight.

16 - English