Hypertherm XPR300 - Page 6

Contents
6 809970 Field Service Bulletin XPR300
Install the chopper....................................................................................................................... 33
Replace the control-side fans .............................................................................................................. 34
Remove the control-side fans .................................................................................................. 34
Install the control-side fans....................................................................................................... 36
Replace the 48 V power source.......................................................................................................... 37
Remove the 48 V power source.............................................................................................. 37
Install the 48 V power source .................................................................................................. 38
Replace the 24 V power source.......................................................................................................... 40
Replace the control transformer .......................................................................................................... 41
Remove the control transformer .............................................................................................. 41
Install the control transformer................................................................................................... 42
Replace the power distribution PCB.................................................................................................. 43
Replace the control PCB...................................................................................................................... 44
Replace the I/O PCB............................................................................................................................. 46
Replace the pilot arc relay..................................................................................................................... 47
Replace start circuit assembly ............................................................................................................. 48
Bottom-compartment parts .............................................................................................................................. 49
Replace an inductor ............................................................................................................................... 49
Remove an inductor.................................................................................................................... 49
Install an inductor ........................................................................................................................ 53
Rear-compartment parts ................................................................................................................................... 54
Replace the main contactor.................................................................................................................. 54
Replace the inrush contactor ............................................................................................................... 56
Replace the inrush resistor assembly................................................................................................. 57
Plasma power supply panels............................................................................................................................ 59
Remove the front panel.......................................................................................................................... 59
Remove the right-side (liquid-cooling-side) panel .......................................................................... 60
Remove the left-side (control-side) panel......................................................................................... 61
Remove the rear panel........................................................................................................................... 62
Remove the top panel ............................................................................................................................ 63
2 Gas Connect Consoles ............................................................................................................ 65
How to use push-to-connect fittings.............................................................................................................. 66
Replace the high-frequency, high-voltage transformer .............................................................................. 67
Replace the high-frequency, high-voltage PCB.......................................................................................... 69
Replace the coil assembly ................................................................................................................................ 71
Remove the coil assembly..................................................................................................................... 71
Install the coil assembly......................................................................................................................... 73
Replace the EMI filter......................................................................................................................................... 74
Replace the control PCB.................................................................................................................................. 75
Replace the 24 V power source...................................................................................................................... 76