Hand Brake: Description: Performance

In order to achieve the required performance targets, the lever ratio is relatively high at 7.25:1. Also, in comparison to Range Rover, fine ratchet teeth are employed for the convenience of slighter drivers. The overall performance of the system is totally dependent on the correct adjustment and bedding of the Duo-Servo parking brake. The adjuster travel is 25-30 mm, in other words in the worst tolerance condition the system can compensate for 25mm of slack in the cable system. Slack in the system can be caused by both initial tolerance stack-up in the body/parking brake system and actual 'stretch' in the system.