TM 55-2210-223-12TO 45A2-2-14-412-9.OPERATION OF BRAKE SYSTEM (cont)(2)Depression of the independent brake valve handle whenever the handle is in RELEASE position will causethe release of any automatic brake application existing on the locomotive.(3)Depression of the independent brake valve handle with it somewhere in the application zone will releasethe automatic application only to the value corresponding to the position of the handle in the applicationzone.d.Emergency Brake Valve.(1) The emergency brake valve is located near thefireman's position. It is installed at the end of abranch pipe from the brake pipe. It provides ameans of obtaining an automatic emergencybrake application from a point other than thebrake valve.(2)The emergency brake valve should be usedonly in case of actual danger, and then shouldbe left open until the train stops. After theoperating lever has been pulled, it must bemanually reset before brake pipe can becharged.2-10. PRESTART INSTRUCTIONSa.Do the before (B) operation PMCS in Table 2-1 and paragraphs 2-8 and 2-9.b.Refer to paragraph 2-3 for location and ensure the following air valves and cocks are CLOSED:NOTECutoff cocks with bent handles are open (in) whenthe handle is parallel with the flow of air. Cutoffcocks with straight handles are open (in) when thehandle is perpendicular to the flow of air.(1)Automatic drain valves in the air reservoirs (The manual valve is opened by turning clockwise, closed byturning counterclockwise.)(2)Trainline hose cutout cocks at each end of the locomotive (If locomotive is connected in multiple-unitoperation, these cocks are OPEN.)(3)Dead engine valve2-28
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