Air leaking from axle. Troubleshooting Hendrickson TIREMAAX PRO tire auto inflation system.

Troubleshooting the cause of air leak coming from vent tube attached to a semi trailer axle with a Hendrickson TIREMAAX PRO auto inflation system. Video goes over how system works and how to replace a TIREMAAX PRO hubcap. Hendrickson TIREMAAX PRO and CP service manual: https://www.hendrickson-intl.com/geta...