Hypertherm XPR300 - Qualifications of Service Personnel

Plasma Power Supply
1
XPR300 Field Service Bulletin 809970 41
Replace the control transformer

See Control side – view 1 on page 126 for location and part number.
Remove the control transformer
1. Complete the following procedures:
a. Remove the power from the cutting system.
b. See Remove the left-side (control-side) panel on page 61.

Keep all nuts and screws that you remove.
2. Remove the fuse covers .
3. Loosen screws to remove the L1 and L2 wires from the fuse holder.
4. Remove J1 from the power distribution PCB.
5. Use a 10 mm, hexagonal-socket wrench to remove the nuts and screws from the bracket on
the control transformer.
6. Remove the control transformer .
1
L2
L1
J1
1
2
3
4
5
2
3
4
5