Hypertherm XPR300 Replacement Part Procedures

XPR300 Field Service Bulletin 809970 5
Contents
1 Plasma Power Supply .............................................................................................................. 11
How to use push-to-connect fittings.............................................................................................................. 12
Front parts............................................................................................................................................................. 13
Replace the magnetics fans ................................................................................................................. 13
Remove the magnetics fans...................................................................................................... 13
Install the magnetics fans.......................................................................................................... 14
Right-side (liquid-cooling-side) parts............................................................................................................. 15
Replace the flow meter.......................................................................................................................... 15
Replace the coolant level sensor......................................................................................................... 17
Replace a heat-exchanger fan ............................................................................................................. 18
Remove a heat-exchanger fan.................................................................................................. 18
Install a heat-exchanger fan...................................................................................................... 20
Replace the heat-exchanger assembly .............................................................................................. 21
Remove the heat-exchanger assembly .................................................................................. 21
Install the heat-exchanger assembly....................................................................................... 22
Replace the coolant thermistor............................................................................................................ 24
Replace the solid state relay ................................................................................................................ 25
Replace the fan power distribution PCB........................................................................................... 26
Replace the coolant pump and motor assembly ............................................................................. 27
Remove the coolant pump and motor assembly.................................................................. 27
Install the coolant pump and motor assembly...................................................................... 28
Left-side (control-side) parts............................................................................................................................ 30
Replace the chopper.............................................................................................................................. 30
Remove the chopper .................................................................................................................. 30

Hypertherm XPR300 Specifications

General

Cutting Current	300 A
Duty Cycle	100% at 300 A
Technology	X-Definition Plasma
Gas Supply	Oxygen, Nitrogen, Air
Cutting Capacity (Mild Steel)	38 mm (1.5 in)
Severance Capacity (Mild Steel)	75 mm (3 in)
Pierce Capacity (Mild Steel)	50 mm (2 in)
Input Voltage	200–480 V, 3-PH, 50/60 Hz