Changes made to brake imbalance calculation

In June 2013, we made some changes to the brake performance test. Following these changes, the brake imbalance calculation on MOT Computerisation will be amended from 15 December 2013. It will then be calculated using the maximum service brake efforts, unless lowest effort locks the wheel.

The Inspection Manual will also be updated to reflect this change. Bind, rate of increase, fluctuation, rate of decrease and maximum efforts must still be checked.