Hypertherm Powermax30 AIR Service Manual - Manual (Page 137)

Powermax30 AIR Service Manual 808850 137
6 – Power Supply Component Replacement
Replace the wire group
The wire group kit for the power supply includes 3 replacement wires, as follows.
Figure 55
Remove and install the twisted pair wires from the power board to the compressor-driver
board
1. Complete the following procedures:
a. Set the power switch to OFF (O), and disconnect the power cord from the power source.
b. See Remove the power supply cover on page 98.
c. See Remove the component barrier on page 100.
2. Remove the J9 connector from the power board. See Figure 56 on page 138.
3. Remove the J1 connector from the compressor-driver board.
4. Connect one end of the new twisted pair wires to J9 on the power board.
5. Route the wires through the notch at the top of the center panel . The notch is labeled “AUX BOARD” on the fan
side of the power supply.
6. Route the wires along the top of the center panel. Use the notches provided , as shown in Figure 56.
7. Connect the other end of the new twisted pair wires to J1 on the compressor-driver board.
Kit number Description
428405 Kit: Wire group:
Power board (J9) to compressor-driver board (J1) twisted pair wires (red and black)
Ground clip wire from rear panel to center panel (green)
Ground wire from heatsink to magnetics assembly (green)
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