APT-P hydrokinetic braking system - ejector characteristics and dynamometer tests to reduce residual drag torque (TM-PBS-052)

The Hydrokinetic (HK) brake system installed on the APT-P trailer vehicles produces excessive drag torque following brake release due to residual fluid in the brake not being scavenged fast enough. Poor installation of the ejector which performs the scavenging duty was thought to be the cause. A development exercise was...