Glossary “treadle” Definition:
A dual, heavy-truck brake valve that: 1). Releases air from the service reservoir to the service lines and brake chambers. 2). Opens ports to service lines to vent air in the primary and secondary systems.
Glossary “treadle” Definition:
A dual, heavy-truck brake valve that: 1). Releases air from the service reservoir to the service lines and brake chambers. 2). Opens ports to service lines to vent air in the primary and secondary systems.