Hypertherm Powermax30 AIR Service Manual - Manual (Page 132)

132 Powermax30 AIR Service Manual 808850
6 – Power Supply Component Replacement
12. Being careful not to scratch the heatsink, replace the 2 screws and the clip that you removed from the snubber
resistor. Tighten the screws to 23.0 kg∙cm (20 inch∙pounds). See Figure 50 on page 129.
13. On the power board side of the power supply, reconnect the wires to the transformers and inductors at J13, J14, J15,
J18, J19, J20, J21, and the work lead ring terminal at J22. Tighten the screws to 23.0 kg∙cm (20 inch∙pounds). See
Figure 49 on page 128.
14. On the component side of the power board, reconnect the connector TORCH START (J12) and the connectors at
J5, J6, and J9. See Figure 48 on page 127.
15. Reconnect the J3 connector to the compressor-driver board.
16. Reconnect the ribbon cable from the control board to the power board at J7. Make sure the latches fold up over the
connector.
17. On the fan side of the power supply, reconnect the ring terminals for the red and white wires to the studs labeled
“RED” and “WHT”. Tighten the nuts to 23.0 kg∙cm (20 inch∙pounds).
 If you removed any other wires from the WHT and RED studs, install them on the studs
as well.
18. Complete the following procedures:
a. See Reattach the front panel on page 103.
b. See Install the component barrier on page 101.
c. See Install the power supply cover on page 99.
d. Reconnect the power cord, and set the power switch to ON (I).
CAUTION!
A torque setting higher than 23.0 kg∙cm (20 inch∙pounds) can damage the resistor.