4 Inspection procedures
16
en
XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND
6. Once the inspection is completed satisfactorily,
conclude by reading and following
and all of chapter
4.3.5 Checking the brake disc
Danger!
Wear respiratory protection in order to avoid inhaling
particles which can be hazardous to health! Brake
pad wear produces dust which can cause lung dam-
age!
OK
OK
Fig. 18 -
Inspection of the brake disc
1. Look for wear, damage and cracks,
Cracks that enter the cooling ducts via the outer
circumference or on the inner diameter of the fric-
tion ring are not permitted!
Acceptable crack length Unacceptable crack
length
<75% of brake disc
width
>75% of brake disc width
B
B
Fig. 19 -
Measuring the brake disc thickness
2. Measure the thickness of the brake disc using a
calliper. If the brake disc has a wear ridge, the
measurement can be performed using two spac-
ers (B; e.g. 5 mm thick flat washers),
. Reduce the measured dimension by the total
thickness of the two spacers (B).
The minimum thickness of the brake disc is 37 mm.
Replace the brake disc if it is worn or if it is expected
to be so before the next inspection.
4.3.6 Plugs and protective caps check
Danger!
Wear respiratory protection in order to avoid inhaling
particles which can be hazardous to health! Brake
pad wear produces dust which can cause lung dam-
age!
Caution!
●
Use a vacuum cleaner to clean the surfaces. Do
not use compressed-air.
●
Failure to follow the instructions below could
compromise safety and/or reduce the service life
of the disc brake and its components.
1. Read and follow
prior to in-
specting the protective plugs and protective caps.
2. Remove dirt from surfaces if necessary.
3. Check for signs of excessive heat exposure, dis-
colouration, debris, etc.