Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives . and thus causingIwet steam in cylinders, is injurious to compound loco-! motives, no matter whether slide valves or piston1 valves are used. Oil Dash Pot. This should be kept full of oil, to pre-vent intercepting valve from slamming. Breakages ofintercepting valves are nearly always due to neglect ofthis rule. Dash pots should be filled with common car or engineoil, thinned with kerosene when necessary, in dash pot stuffing
Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives . and thus causingIwet steam in cylinders, is injurious to compound loco-! motives, no matter whether slide valves or piston1 valves are used. Oil Dash Pot. This should be kept full of oil, to pre-vent intercepting valve from slamming. Breakages ofintercepting valves are nearly always due to neglect ofthis rule. Dash pots should be filled with common car or engineoil, thinned with kerosene when necessary, in dash pot stuffing boxes should be kept packed,to avoid leakage of oil. Drifting. In drifting, the three-way cock should bein simple position whenever it can be done without toomuch loss of air by leakage of separate exhaust valveor piping. Most of the recent compound locomotivesare provided with a small drifting valve, in main throt-tle valve, so arranged that it can be opened with aslight movement of the throttle lever. It is consid-ered good practice to admit a little steam to cylinderswhen drifting, through this valve, or, if not provided 33« LOCOMOTIVE ENGINEERING i. rH Eh o O < o EhA P p O o COMPOUND LOCOMOTIVES 331 jvith a small drifting valve, by a slight opening ofaiain throttle. Examination. Enginemen should ascertain if sepa-rate exhaust valve is in good working condition beforestarting out with train, by trying the engine simple andCompound before coupling to the train. The separateexhaust valve should be examined at intervals, so thatthe spring and other parts are kept in proper the engine refuse to move after the throttleis openedy it will usually be found that it stands oncenter on high-pressure side (in position to take steamon low pressure side), and it will be due to either theintercepting or reducing valve sticking, which isalways the result of lack of lubrication for interceptingvalve, or carrying too much water in the of these valves are stic
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectlocomot, bookyear1916
