Hypertherm Powermax30 AIR Service Manual - Manual (Page 122)

122 Powermax30 AIR Service Manual 808850
6 – Power Supply Component Replacement
5. Remove the 2 retaining screws from the left side and right side of the compressor-driver board.
Figure 42
6. Being careful not to scratch the heatsink, position the head of a large blade screwdriver so that it is parallel to the top
edge of the diode and next to the diode’s curved metal prongs . Slowly twist the screwdriver so that it pushes
against the diode . Continue twisting until the diode breaks free from the thermal strip.
Figure 43
7. Repeat the previous step to detach the MOSFET from its thermal strip.
8. Make sure the MOSFET and diode are fully detached from the heatsink. Lift the compressor-driver board out of the
power supply.
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J3
J2
J1
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5
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8
9
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