Plasma Power Supply
38 809970 Field Service Bulletin XPR300
5. Use a 10 mm, hexagonal-socket wrench to 
remove the 2 nuts from the bracket 
assembly.
6. Remove the bracket assembly from the 
plasma power supply.
7. Remove the 4 screws from the back of the 
bracket to remove power source.
Install the 48 V power source
1. Use the 4 screws to install the power source onto the bracket.
The wire connections must point to the top of the plasma power supply.
2. Align the bracket assembly with the studs in the front sheet metal panel and the slots in the 
center panel.