Hypertherm HyPerformance HPR400XD - Page 172

MAINTENANCE
5-2 HPR400XD Manual Gas Instruction Manual
Using the Hypertherm flow meter (128933) ..........................................................................................................................5-36
Manual pump operation ...............................................................................................................................................................5-37
Test 1 – return line......................................................................................................................................................................5-38
Test 2 – supply line at ignition console .................................................................................................................................5-38
Test 3 – change the torch.........................................................................................................................................................5-39
Test 4 – supply line to the torch receptacle.........................................................................................................................5-39
Test 5 – return line from the torch receptacle......................................................................................................................5-39
Test 6 – bucket test at the pump............................................................................................................................................5-40
Pump and motor troubleshooting..............................................................................................................................................5-41
Testing the flow sensor ................................................................................................................................................................5-41
Gas leak tests...........................................................................................................................................................................................5-42
Power supply control board PCB3 .....................................................................................................................................................5-43
Power supply power distribution board PCB2.................................................................................................................................5-44
Start circuit PCB1...................................................................................................................................................................................5-45
Operation ........................................................................................................................................................................................5-45
Start circuit functional schematic ..............................................................................................................................................5-45
Start circuit troubleshooting .......................................................................................................................................................5-45
Pilot arc current levels..................................................................................................................................................................5-47
Pump motor drive board PCB7............................................................................................................................................................5-48
Cooler power distribution board PCB1 .............................................................................................................................................5-49
Cooler sensor board PCB2 ..................................................................................................................................................................5-50
Gas console control board PCB2.......................................................................................................................................................5-51
Gas console power distribution board PCB1 ..................................................................................................................................5-52
Gas console AC valve-driver board PCB3........................................................................................................................................5-53
Chopper tests...........................................................................................................................................................................................5-54
Phase-loss detection test ......................................................................................................................................................................5-56
Torch lead test ..........................................................................................................................................................................................5-57
Preventive maintenance .........................................................................................................................................................................5-58