Hypertherm Powermax30 XP Service Manual - Manual (Page 125)

Powermax30 XP Service Manual 808150 Revision 1 125
6 – Power Supply Component Replacement
Remove and install the ground clip wire from the heatsink to the rear panel
1. Complete the following procedures:
a. Set the power switch to OFF (O), disconnect the power cord from the power source, and disconnect the gas
supply.
b. See Remove the power supply cover on page 88.
2. Detach the connector from the ground clip on the rear panel. (See Figure 60.)
3. Remove the ground wire’s ring terminal from the screw that attaches it to the heatsink.
4. Tighten the new ground wire’s ring terminal to the heatsink to a torque setting of 23.0 kg-cm (20 inch-pounds).
 Be sure to reattach the ring terminals for the other two ground wires that connect to the
heatsink using the same screw.
5. Press the connector on the other end of the wire onto the rear panel’s ground clip. (See Figure 60.)
6. Complete the following procedures:
a. See Install the power supply cover on page 89.
b. Reconnect the gas supply and power cord, and set the power switch to ON (I).
Figure 60
4
2
3
1
1 Ground clip wire from heatsink to rear panel
2 Rear panel
3 Rear panel ground clip
4 Heatsink