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 |
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| greatly increase the load on grinder and |
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| operator). Usually also accompanied by |
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| high current draw by large motor. |
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| 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 |
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| on. Check that large variable speed drive or |
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| frequency converter is functioning properly |
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| (unplug both motors, set display on keypad to |
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| Output Frequency, switch machine to RUN, |
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| see if numbers on screen change from zero |
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| and begin counting up. If numbers stay on |
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| zero, large variable speed drive or frequency |
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| converter is not receiving run command from |
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| switch on control panel. Machine needs to be |
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| checked by an electrician or by Husqvarna |
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| Construction Products. |
| Drive belt is slipping. | Remove belt tensioner cover plate on bottom |
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| of machine and check there is no water or dust |
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| on the inside of the machine that may be caus- |
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| 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 |
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| heads by hand. If all grinding heads rotate |
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| together, belt is not broken. If only one |
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| 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 | 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. |
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|
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| Head locks may be loose or missing. | Check to ensure all head locks are present |
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| and tight. |
16 - English