14
4
4
1
44
26
45
11
37
61
7
18*
58
9
12
2
6
5
40
10
39
22
13
161
» Y081564 - (EN - REV. 003) | JUNE 2022
Despite the use of long-life materials, it is necessary to
check some of the components regularly for their general
condition. The following inspection points will ensure a
long-life and trouble-free operation of the disc brake.
Every 3 months
The pad wear must be checked visually and independent of
any wear indicator fitted to the vehicle (see Sections 5.1).
With every pad replacement
It is important to check for the correct functioning of the
adjuster (see Section 5.2) and the smooth operation of the
caliper over its full range of movement (see Section 5.3). Also
inspect the tappet and boot assemblies (13), the adjuster cap
(37) and the sealing elements (9, 58) for correct fitting and
condition as well as the caliper bearing in the area of the rubber
bush/guide sleeve (6) (see Section 5.3.3).
Annually
Check the caliper running clearance (see Section 5.3.1)
and the correct fitting and condition of the cover (10), the
adjuster cap (37) and cover (68c, 68d or 68e) (depending on
the bearing variant).
Note:
These frequencies are a minimum and, depending
on the vehicle application, a more frequent check of the
components may be necessary.
Refer also to vehicle and/or axle manufacturer’s instructions
in regard to service intervals.
The discs should be checked according to the specification
of the axle or vehicle manufacturer.
In the unlikely event of a problem, all relevant components
must be returned in order that an objective investigation of
the cause can be made.
For further information please refer to the Knorr-Bremse
Dokument Y333409.
*
Variants possible
4. INSPECTION POINTS
