Stimmen - 2, Durchschnittliche Bewertung: 3.5 ( )

Hersteller: Husqvarna Dateigröße: 3.09 mb Dateiname: Unterrichtssprache:

Motor failure (very rare) Have motor tested and replace if required. 9—UNDERVOLTAGE Insufficient voltage supply to machine. Check power supply and ensure correct voltage. Power supply to variable speed drives or frequency converters has been turned off. Re-connect power to grinder. 11—OUTPUT PHASE SUPERVISION Short circuit on output side of variable speed drives or frequency converters. Check wiring in plugs connected to motor cables or inside connection boxes on motors. Motor failure (very rare) Have motor tested and replace if required. 14—UNIT OVER TEMPERATURE Variable speed drives or frequency converter over temperature due to high temperature working environment or faulty temperature sensor. Open door on electrical cabinet to increase ventilation. Have variable speed drives or frequency converter tested by service agent. 15—MOTOR STALLED Motor being worked too hard and drawing extra current. Check current being drawn when machine is running. Reduce speed setting and current draw back into acceptable limits as described on previous page. Mechanical jam preventing motor from turning. Try rotating grinding discs and planetary head by hand to see if jam exists 16 - MOTOR OVERTEMPERATURE Motor being worked too hard and drawing extra current. Check current being drawn when machine is running. Reduce speed setting and current draw back into acceptable limits as described on previous page. 16 - English 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 ONTO Not enough diamonds under the machine (if grinding thick glue or soft floors, too few diamonds under the machine will greatly increase the load on grinder and operator). Usually also accompanied by high current draw by large motor. Increase number of diamonds under machine to reduce load on grinder and operator. Large motor not working (this can be caused by fault with motor, fault with wiring to motor, or fault with large variable speed drive or frequency converter). Check large motor is plugged in. Check there are no faults on larger variable speed drive or frequency converter. Check that large variable speed drive or frequency converter is on. Check that large variable speed drive or frequency converter is func tioning 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 causing the belt to slip on the drive pulleys. Drive belt is broken (this can be confirmed 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). Replace internal drive belt. GRINDER SOUNDS LIKE IT IS OVERREVVING Small planetary drive motor not plugged in. Check small planetary drive motor is plugged in. Small motor not working (this can be caused by fault with motor, fault with wiring to the motor, or fault with large variable speed drive or frequency converter). Check small motor is plugged in. Check there are no faults on small variable speed drive or frequency converter. Check that small variable 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 witch on control panel. Machine needs to be checked by an electrician or Husqvarna Construction Products. GRINDER IS JUMPING AROUND Grinding heads may be worn-out or damaged. Check grinding heads for broken parts or excess movement. Diamonds may not be fi tted correctly or different height diamonds may be on the grinding heads. Check to ensure all diamonds are fi tted correctly and are the same height. Head locks may be loose or missing. Check to ensure all head locks are present and tight. English -17 Diamonds Diamonds Background Diamond abrasives usually consist of 2 components: 1. Diamond powder (also known as diamond crystals or grit). By changing the size of the diamond powder or grit, we can change how coarse or fi ne the scratches will be that are left behind from the grinding process. 2. A binding agent (metal or resin). Diamond powder is mixed and suspended in either a metal or resin binding agent. When suspended in a metal binding agent, the finished product is referred to as a Metal B...

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