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ROTOR “FLASHING” CIRCUIT TEST (continued)
FIGURE F.8 - BRUSH HOLDER LEADS 201A(-) AND 202B (+)
Slip
Rings
201A(-)
202B(+)
TEST PROCEDURE
1. With the 5/16" nut driver, remove the 8
sheet metal screws that hold the top cover
to the control box. Remove the top cover.
2. Locate and remove lead #201A from the
brush holder. See Figure F.8 for location.
3. Connect the negative (-) lead of the DC
ammeter to lead #201A and the positive (+)
lead to the brush holder.
4. Remove lead #7A from field diode bridge
rectifier D1. See Figure F.9. Electrically
isolate the lead.
TROUBLESHOOTING & REPAIR
F-24 F-24
WELDANPOWER 125
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FIGURE F.9 - DIODE BRIDGE LEAD ASSIGNMENTS
7A (Blue)
201 (Black)
201C (Black)
9A (Brown)
200 (Red)
200C (Red)
9B (Brown)
+
–