Troubleshooting & repair, Rotor resistance test (continued) – Lincoln Electric POWER-ARC 4000 SVM103-A User Manual
Page 55
TROUBLESHOOTING & REPAIR
POWER-ARC 4000
F-14
ROTOR RESISTANCE TEST (continued)
FIGURE F.3 - BRUSHES RETAINED WITH CABLE TIE
CABLE
TIE
BRUSHES
9. Reinstall the brush holder assembly after
the test. Depress the spring-loaded
brushes into the holder and slip a suitable
non-metallic, fairly stiff retainer through
the slots at the top and bottom of the
holder. A cable tie works well; see Figure
F.3. This will hold the brushes up so that
you can easily install the holder.
10. Slip the holder into position in the gener-
ator end bracket. Be careful not to
loosen the 2 attached wires.
11. Reinstall and tighten the 2 screws with
the 1/4” nut driver.
12. Slowly remove the non-metallic retainer
from the brush holder and let the brush-
es snap back against the slip rings.
13. Snap the brush holder cover back into
position.