Wear Limits Of Brake Pads And Rotor - BENDIX SB-6-SB-7 AIR DISC BRAKE Manual

5.3 Wear Limits of Pads and Rotors
Pads
The thickness of the Pads must be checked regularly
dependent on the usage of the vehicle.
The Pads should be checked to adhere to any applicable
legal requirements that may apply.
If no Wear Indicator has been connected, check for
wear at least every 3 months.
If friction material is less than 0.08in. (2mm) (see E), the
Pads must be replaced.
Rotors
Measure thickness at the thinnest point. Avoid measu-
ring near the edge of the disc as a burr may be pre-
sent.
A = Rotor thickness (new condition) 1.77in. (45mm)
B = Rotor thickness (worn) 1.46in. (37 mm), Disc must
be replaced
C = Overall thickness of Pad (new) 1.18in. (30mm)
D = Backplate 0.35in. (9mm)
E = Minimum thickness of friction material 0.08in. (2mm)
F = Minimum allowed thickness in worn condition
for backplate and friction material 0.43in. (11mm)
(replacement of Pads necessary).
If wear dimension B 1.53in. (39 mm) Rotor should be
replaced together with Pads.
Wear dimension B = 1.46in. (37 mm) must not decrease. Minimum allowable thickness B=1.46in. (37 mm)
These recommendations must be followed for proper brake performance.
16
CAUTION!
Stay within the Rotor and Pad Wear Limits
CAUTION!
A
C
B
D
E
F
M+P-KN-002