Powermax125
Service Manual 808070
229
9 – Power Supply Component Replacement
Replacing the bulk capacitors
1.
Complete the following procedures:
a.
Disconnect the power and gas supply
b.
c.
d.
2.
Remove the 4 bulk capacitor mounting screws from the power board.
The C152 top mounting screw also secures an inductor wire to the power board.
Figure 87
3.
From the fan side of the power supply, remove the bulk capacitors by pulling them straight out.
4.
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. See
5.
From the fan side, rotate each capacitor until the polarity dot aligns with the viewing hole on the front side of the
power board.
6.
Secure the inductor wire with the C152 top mounting screw. Start the 4 supplied mounting screws by hand, then
tighten to 40.3 kg-cm (35 inch-pounds).
Kit number
Description
Kit: Powermax125 bulk capacitor 480 V CSA
Kit: Powermax105 bulk capacitor CSA, 230 – 400 V CE; Powermax125 bulk capacitor
600 V CSA
Kit: Powermax125 bulk capacitor 400 V CE/380 V CCC
C151
C152
+
+
_
_
C151
C152
+
+
_
_
Mounting screws (4)