Hypertherm XPR300 - Install an Inductor

Plasma Power Supply
1
XPR300 Field Service Bulletin 809970 53
Install an inductor
1. Slide the inductor into the plasma power supply through the fan opening.
2. Connect the thermal switches on the inductor through the hole in the sheet metal.
 J1 for Inductor 1 (L1)
 J3 for Inductor 2 (L2)
3. Install the blue/white twisted pair wires into the cable holders.
4. Use a 10 mm, hexagonal-socket wrench to install the 3 screws on the inductor terminal. Tighten
to 10 N∙m (90 in∙lb).

Use the picture that you took in step 10 on page 51.
5. Install the 3 inductor wires into the cable holder.
6. Install heatshrink on the 3 terminals of the inductor. Make sure that the heatshrink completely
covers the inductor terminals.
7. Align the inductor bracket with the studs in the plasma power supply.
8. Use a 10 mm, hexagonal-socket wrench to install the 3 nuts on the inductor bracket.
9. Put the bottom of the fan and bracket assembly into the sheet metal tab.
10. Connect the fan-wire connector.
11 . Use a 10 mm, hexagonal-socket wrench to install the nut.
12. Install the liquid-cooling-side panel.
13. Install the front panel.