Service Procedures for the Cover, Panels, and Connectors
Powermax65/85 SYNC Service Parts and Procedures 810440 75
Replace the power switch
For kit contents, refer to Plasma power supply interior, rear on page 20.
Remove the power switch
1. Set the plasma power supply switch to OFF (O), disconnect the 
power cord from the power source, and disconnect the gas 
supply.
2. Loosen the rear panel. Refer to page 57.
3. Use an offset Phillips screwdriver to loosen the set screws  that 
attach the 3 power wires to the top of the power switch.
4. Pull the 3 power wires from the power switch.
5. Make a note of which AC input wires are attached to T1, T2, and 
T3.
6. Use an offset Phillips screwdriver to loosen the set screws  that attach the 3 AC input wires 
to the bottom of the power switch.
7. Pull the 3 power wires from the power switch.
8. Loosen the set screws  on the auxiliary switch.
9. Pull the 2 wires from the auxiliary switch.
10. Remove the power switch handle screw .
11 . Pull the power switch handle straight off the post.
12. Use a blade screwdriver to pry up the edge of the 
label .
13. Peel off the label.
14. Remove the 4 power switch mounting screws .
15. Remove the power switch from the plasma power supply.
6 BAR (85 PSI) MIN
9 BAR (135 PSI) MAX