Hypertherm XPR300 - Default Chapter; Table of Contents

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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