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XPR170 Field Service Bulletin 810410 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 check valve ......................................................................................................... 17

Replace the coolant level sensor......................................................................................................... 19

Replace a heat-exchanger fan ............................................................................................................. 20

Remove a heat-exchanger fan.................................................................................................. 20

Install a heat-exchanger fan...................................................................................................... 22

Replace the heat-exchanger assembly .............................................................................................. 23

Remove the heat-exchanger assembly .................................................................................. 23

Install the heat-exchanger assembly....................................................................................... 24

Replace the coolant thermistor............................................................................................................ 26

Replace the solid state relay ................................................................................................................ 27

Replace the fan power distribution PCB........................................................................................... 28

Replace the coolant pump, solenoid valve, and motor assembly ................................................ 29

Remove the coolant pump, solenoid valve, and motor assembly..................................... 29

Install the coolant pump, solenoid valve, and motor assembly......................................... 30

Left-side (control-side) parts............................................................................................................................ 32

Replace the chopper.............................................................................................................................. 32