Hypertherm HPR800XD Auto Gas Rev.2 - Manual (Page 216)

Maintenance
5-2 HPR800XD Auto Gas – 806500
Air filter element replacement ..............................................................................................................................................................5-33
Coolant system servicing ......................................................................................................................................................................5-34
Draining the coolant system .......................................................................................................................................................5-34
Chiller interface coolant filter ...............................................................................................................................................................5-36
Filter replacement .........................................................................................................................................................................5-36
Gas leak tests ..........................................................................................................................................................................................5-37
Leak test 1 (inlet leak test) .........................................................................................................................................................5-37
Leak test 2 (system leak test) ....................................................................................................................................................5-38
Leak test 3 (proportional valve test in the metering console) ............................................................................................5-38
Power supply control board PCB3.....................................................................................................................................................5-39
Power supply power distribution board PCB2 ................................................................................................................................5-40
Start-circuit PCB1 ..................................................................................................................................................................................5-41
Operation .......................................................................................................................................................................................5-41
Start circuit functional schematic .............................................................................................................................................5-41
Start circuit troubleshooting ......................................................................................................................................................5-41
Pilot arc current levels............................................................................................................................................................................5-43
Pump motor drive board PCB7 ...........................................................................................................................................................5-44
Chiller interface power distribution board PCB1 ............................................................................................................................5-45
Coolant sensor board PCB2 ...............................................................................................................................................................5-46
Selection console control board PCB2.............................................................................................................................................5-47
Selection console power distribution board PCB1 ........................................................................................................................5-48
Selection console, AC valve-driver board PCB3 ............................................................................................................................5-49
Metering console control board PCB2 ..............................................................................................................................................5-50
Metering console power distribution board PCB1 .........................................................................................................................5-51
Chopper tests ..........................................................................................................................................................................................5-52
Phase-loss detection test .....................................................................................................................................................................5-54
Torch lead test .........................................................................................................................................................................................5-55
Preventive maintenance .........................................................................................................................................................................5-56