Remove the work lead receptacle Figure 1. Components of the work lead receptacle 1 Work lead receptacle 4 Washer 2 Internal tooth lock washer 5 Washer 3 Nut 6 Screw Complete the following procedures: Set the power switch to OFF (O), disconnect the power cord from the power source, and disconnect the gas supply. Remove the plasma power supply cover and handle. Remove the component barrier. Loosen the front panel. Remove the nut that secures the work lead receptacle to the front panel. Separate the work lead receptacle from the front panel. Figure 2. Work lead receptacle components in the front panel 1 Work lead receptacle 2 Internal tooth lock washer 3 Nut 4 Washer 5 Washer 6 Screw 7 Work lead wire from power Printed Circuit Board (PCB)