Chapter 13 Disc Brake Service 223
Figure 13-30. A—An ASE certified technician turning a brake
rotor. Always follow the tool manufacturer’s machining proce-
dures and safety guidelines. B—As the tool moves over the
rotor surface, watch for the presence of any damaged areas
that are not removed. C—The line on the inside of this rotor is
a groove that was below the cutting bit. More metal must be
removed from the rotor to eliminate this spot. (Ammco)
Figure 13-29. A—A brake rotor with integral hub installed on a
lathe. 1—Shaft. 2—Arbor nut. 3—Self-aligning spacer. 4—
Tapered cone adapter. 5—Tapered cone adapter. B—You can
r measure the rotor for thickness before cutting. C—A silencer
band being placed around the rotor to help reduce noise and
vibration as the rotor is machined. (Ammco)
Silencer
band
Rotor
Lathe
Lathe
R Ro tor
5
4
1
3
2
A A
B
C C
B
C
Chip guard
Silencer
band
Cutter feed
dials
Rotor
A
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