Brakes: damages

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If the brake lining shows wear to the upper and lower edge of the friction surface, then an old „run-in“ brake disk has been used.

Scoring on the brake lining is indicative of external influences, either from wear of the brake lining down to below the minimum tolerance of 2 mm, or direct foreign bodies, whereby the latter is the exception.

Overheating of the brake lining is caused by a fixed or stiff calliper.

Vitrification of the brake lining is caused by repeated light braking manoeuvres (incorrect parking attempts) so that the surface of the lining is polished off. This can then drastically impair the braking effect when braking hard. 

Brake linings with directional arrows on the back plate are mounted on the piston side and in the brake disk inlet
(forward travel).

Brake linings are frequently changed too late. To guarantee
full functional safety in all operating conditions, the brake linings must be replaced at the latest when the residual lining is 2 mm thick or when the wear warning display appears.

 

Other causes for braking noises can include:

  • Inadequate braking pressure· Foreign bodies in the brake lining (dirt, abrasives)
  • New linings fitted to old disks
  • Old or hardened packings in the brake calliper
  • Stiff calliper or lining calliper compartment must be cleaned
  • Piston offset setting not 20°

 

Quality features of VAICO brake linings:

  • VAICO brake linings are „scorched“: constant, extreme heating during the production process expels bonding agents such as rubber, resin etc. This prevents aggressive running in of new brake linings from causing hardening of the bonding agents. The risk of so-called vitrification or „fading“ of the surface with corresponding lower friction values is thus ruled out completely, with greater braking comfort during the runningin period.
  • VAICO brake linings are equipped with rollack or an attenuation plate to prevent so-called „squeaking“.
  • VAICO brake linings comply with standard ECE-R 90 and thus with the quality requirements stipulated by European automotive manufacturers.