Page 17 - KNORR Pneumatic Disc Brake

5

Functional and Visual Check

Brake Pad/Disc Wear Check (on vehicle)
with bearing variant (6a)

G
For all disc brakes equipped with rubber bush type (6a)
with axial ribbing (see arrow H). 1
H
5.1.5. The pads/disc wear can be visually determined
without removing the wheel, by noting the position of the
wear marker point see arrow G - the change-over point
from the ribbed to the smooth surface) (see Figs.).

If dimension C is less than 1 mm, the brake pad thickness
and brake disc must be checked with the wheel removed
(see Figs.). C

If any minimal tolerance limits have been reached (see
Section 5.1) the pads and/or disc must be changed. 5.1.5a - Dimension C with new disc and brake pads

Note: Pads must be changed as an axle set (see Section 6).
For disc replacement, follow vehicle manufacturer’s recom-
mendations.

G

1

C

5.1.5b - Dimension C with worn disc/brake pads

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