Carbon Brush Lead Inspection
●Measure the resistance by using a multimeter with the
range set as × 1Ω, as shown in the figure
End bolt and positive carbon brush [A]
Right-hand end cover and negative carbon brush
[B]
★★
If the resistance is not close to zero ohms, the
carbon brush lead is open-
circuit. The carbon brush
plate assembly needs to be replaced
Right-hand End Cover Assembly Inspection
●Measure the resistance by using a multimeter with the
range set as the maximum, as shown in the figure
Terminal and right-hand end cover [A]
★
If there is any reading, the right-
assembly is short-circuited. Replace the right-hand end
cover assembly
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