Treatise covering operation, defects and remedies of the locomotive, Westinghouse and New York air-brake, also questions and answers to first, second and third year's progressive examinations (1917)
MacDonald, J. R. [from old catalog] · [Chicago] The author · leaf 243
ver brake release the exhaust valve is forced downward,engaging the upper end of the double check, allowing thedriver brake to release; it should be understood that whenthe brakes are applied with the automatic brake cylinderpressure comes under the double check. Hence, it is theduty of this check… … , DCVFROM DOUBLE CHECK VALVE AND CYLINDER Fig. 26. Cross Section of S-3 Stratght-Air Brake Valve inRelease Position WESTINGHOUSE AIR BRAKE 241 air, brake cylinder pressure exists above the check, tendingto hold the exhaust valve up to its seat and the double checkdown. Therefore, a leaky exhaust…
Locomotives · Westinghouse air-brake · New York air-brake
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