SportsArt Fitness T615, Руководство по ремонту

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4-1-1
Inspection and Measurement
Model : T615
Inspection point:
motor brushes
Inspection method: 1. Inspect motor brushes.
A. Inspect brush length. If brushes are shorter than 0.7mm, replace the brushes.
B. Inspect the brush surface. It should be smooth. If there are grooves, the commutator might be faulty.
C. Inspect whether brush copper wires have changed color. If so, replace the brushes.
Brush ends shown here have
scratches, a sign of irregular
wear.
Replace brushes like these.
Brush length should exceed 0.7
mm. This image shows brushes
that are too short.
motor brushes