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
Summary of Contents for T615
Page 1: ...T615 Repair Manual Electronics...
Page 2: ...1 1 Product Illustration 1 1 1...
Page 3: ...1 2 Dispaly 1 2 1...
Page 4: ...1 3 Component Placement T615 Display 1 3 1...
Page 5: ...1 3 Component Placement T615 Bridge board 1 3 2 Bridge board To Lower keypad To Safety key...
Page 8: ...1 4 Connection T615 1 4 2...
Page 9: ...1 4 Connection T615 Display 1 5 1...
Page 10: ...1 5 Cable Connections T615 Display 1 5 2 To Safety key board To lower keypad To Display...
Page 12: ...1 6 Indicator LEDs T615 Display 1 6 1 Power led...
Page 48: ...4 8 1...