B06 20 243 E-EN
page 18 / 23
09.2010
Installation and Maintenance Manual
CB8-E
5
Maintenance
5.1 Replacing the brake linings
CAUTION
When the linings are worn, they must be replaced. Worn out linings can cause a failure of the
brake.
The maximum allowed lining wear of 5 mm per side is reached, when the remaining thickness of the
lining has reached a value of 2 mm for sinter linings or 7 mm for organic linings. The brake pad
thickness can always be checked with a gauge. All brake linings for the CB8 consist of a steel back
plate and the friction material. The linings have a total thickness of 17 mm, i.e. linings must be
replaced when the thickness of friction ma back plate is minimum 12 mm.
The brake linings can be replaced without dismounting of the brake.
CAUTION
See §4.7 for proper handling of brake linings.
To replace the linings follow the below mentioned steps.
1.
Ensure that the whole drive system is secured against unintentional movement.
WARNING
Prior to commencing any repair or other work, the owner must guarantee for a standstill of the
whole drive system. Especially the drive motors must be locked against unintentional
switching. Further we draw your attention to the specific rules for prevention of accidents of
the plant.
WARNING
Never place your fingers between the brake linings and the brake disc.
2.
Remove cover and sealing from topside of housing (figure 9).
3.
Turn the threaded pin out of the free wheel ring (figure 12).
4.
Open the brake with manual release (see §4.9).
5.
Turn around the adjusting nut (figure 12) with a hexagon key Ø4 mm in direction of brake disc
until block or until the distance between brake shoes and disc is wide enough to mount new
linings.
