User manual HUSQVARNA PG 530

[. . . ] Please read the operator's manual carefully and make sure you understand the instructions before using the machine. Key to symbols 4 Safety Instructions 5 Introduction 6 Transportation 6 Storage 6 What is what 7 Setting up/Operation 9 Changing the diamonds 11 Variable speed drives/ frequency converters 12 Faults and troubleshooting 15 Diamonds 17 Diamond selection 18 Maintenance 22 Maintenance schedule 25 Technical Data 26 The symbols below are used on the machine and in this Operator's Manual. It is important that the user understands the significance of these in order to work with the machine safely. Please read the operator's manual carefully and make sure you understand the instructions before using the machine. [. . . ] OUTPUT FREQUENCY (Monitor Menu) This screen tells the operator the frequency the motor is running at when the machine is in operation. The value for output frequency should be constant when the machine is running. If there is a fluctuation in output frequency when the machine is running, generally this indicates the motor is running at or near the limit of its programmed current limit. the current limits (predetermined and set by Husqvarna Constructions Products) are as follows: 1. Combined large and small motor - 16 amps. If there is a fluctuation in output frequency when the machine is in operation, it is advisable to check the motor current as well. This can be found by pressing the UP arrow on the keypad 3 times. For trouble free operation concerning current issues, it is best to keep output current at or around 12-13 amps. The current draw of the motor can be reduced by reducing the speed of the motor using the speed dial on the control panel near the handle bars. It will read higher values when the machine is in stand-by and lower values when the machine is in operation. When DC LINK voltage is reduced (in the case of a poor power supply), the variable speed drive/frequency converter will draw more current to compensate. This is why poor power supply will lead to the machine drawing maximum current on a premature basis (for further comments see page 11). FAULT HISTORY The fault history menu stores the last series of faults experienced by the variable speed drive/frequency converter. If there is a recurring fault pattern experienced by the machine, the information can be obtained from the fault history menu. For more on faults, see trouble shooting faults. Faults and trouble shooting Faults and trouble shooting When either one of the variable speed drives or frequency converters in the machine experience a fault and "trip" out, they will cease to run and an error message will appear flashing on the keypad display (see picture below). The following list are the most commonly experienced faults and possible action steps. Possible Cause Motor being worked too hard and drawing extra current. Action Check current being drawn when machine is running. Reduce speed setting and current draw back into acceptable limits as described on previous page. Check power supply and ensure correct voltage. Short circuit on output side of variable speed drives or frequency converters. [. . . ] Planetary Drive System Planetary seal - closeup Beneath the gearbox and concealed by the mounting brackets and machine cover, there is a planetary drive sprocket situated on the output shaft of the gearbox. This planetary sprocket engages with the chain ring (also located beneath the machine cover) and together form the main drive mechanism for the planetary drive system. It is not required for there to be lubrication between the planetary drive sprocket and chain ring), to allow any dust that may come into contact with the chain ring to fall back out again. Inspect for dust build up here Remove these bolts. [. . . ]