Measuring and testing – Brake testing – Vehicle installation
Patent
1997-08-26
1999-08-10
McCall, Eric S.
Measuring and testing
Brake testing
Vehicle installation
73 39, 188 3H, B60T 1300
Patent
active
059361549
ABSTRACT:
An apparatus for operator controlled purging of the tanks of a pressurized air reservoir of a vehicle air system comprises an air actuated normally closed drain valve mounted to an underside of each tank, a source of pressurized air engaged to each drain valve, and a controller for each valve engaged downstream of the source, and within a driver area of the vehicle, the controller when activated, allowing for communication between the source and the drain valve for opening of the valve. The method for using the apparatus in testing air system integrity includes the steps of draining and refilling each tank individually in a pre-defined sequence while monitoring driver area mounted indicators of air pressure levels and testing functionality of an air system operated service brake system of the vehicle by carrying out the pre-defined sequence.
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patent: 5205315 (1993-04-01), Margerum
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Kuhn Lawrence H.
Neely, Jr. Robert H.
Calfa Jeffrey P.
McCall Eric S.
Navistar International Transportation Corp.
Sullivan Dennis K.
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