Hypertherm Powermax105 Service Manual - Manual (Page 262)

Power SuPPly ComPonent rePlaCement
9-64
powermax
105 Service Manual
Replace the bulk capacitors
1. Remove the four bulk capacitor mounting screws from the power board.
Note: If the power supply is a 380 V CCC or 400 V CE model, the C152 top mounting screw will also secure
an inductor wire to the power board.
2. Remove the bulk capacitors, from the fan side of the power supply, by pulling them straight out.
3. Insert the new bulk capacitors, from the fan side of the power supply, noting the orientation of the polarity dot in
regard to the viewing hole in the power board.
4. Rotate each capacitor, from the fan side, until the polarity dot aligns with the viewing hole on the front side of the
power board.
5. Start the four supplied mounting screws by hand, then tighten to 40.3 kg cm (35 in.-lbs).
Note: If the power supply is a 380 V CCC or 400 V CE model, secure the inductor wire with the top C152
mounting screw.
Bulk capacitors
C151 C152
+
+
_
_
C151 C152
+
+ _
_
Mounting screws (4)
C151 C152
+
+
_
_
+
+
Bulk capacitor polarity dots
Power board viewing holes