Page 17 - Bendix Air disc brake-01

At each change of Pads check the Rotors for grooves
and cracks.
The diagram at the right shows possible conditions A B 1
1
a
of the surface. max. 0.75 x a
A = Small cracks spread over the surface
1
are allowed max. 1.5 mm
B = Cracks less than 0.06in. (1.5mm) deep or wide,
1
running in a Radial direction, are allowed
D C 1
1
C = Grooves (circumferencial) less than 0.06in. (1.5mm)
1
wide are allowed
D = Cracks in the vanes are not allowed and the
1
Rotor MUST BE REPLACED.

a = Pad contact area

Note VF 00127/3
In case of surface conditions A1,-C1, the Rotor can
remain in service until it has reached the minimum
thickness of 1.46in. (37 mm) is reached.

Knorr-Bremse Rotor are normally service-free and
refinishing, when changing Rotors, is not necessary.
However, refinishing could be useful, e.g. to increase
the load-bearing surface of the Pads, after severe
grooving on the entire friction surface has occurred.
To meet safety requirements, the minimum thickness
after refinishing is > 1.53in. (39 mm).
In addition, follow the recommendations provided by
the Vehicle Manufacturer.

CAUTION!

Follow these recommendations. Excessive
Pad or Disc wear will degrade optimum performance.

17
SD-23-7550: 000: US: Released: Wed Apr 09 01:32:27 CEST 2014: