Railway and Locomotive Engineering . air work done on theair cylinder of the air compressor. Thisfor the reason that about 85 per cent, ofthe repair work necessary to be done onthe air valve parts of the locomotive the pump or compressor will not be toogood. If an air pump is defective in the aircylinder it may be expected to run hotand scatter quite an amount of partiallyburned oil and gummy substance through-out the entire brake system of the loco-motive and to result in the carrying of agreat deal of water from the main reser-voirs into the brake pipe of trains of carsand in order to avoid
Railway and Locomotive Engineering . air work done on theair cylinder of the air compressor. Thisfor the reason that about 85 per cent, ofthe repair work necessary to be done onthe air valve parts of the locomotive the pump or compressor will not be toogood. If an air pump is defective in the aircylinder it may be expected to run hotand scatter quite an amount of partiallyburned oil and gummy substance through-out the entire brake system of the loco-motive and to result in the carrying of agreat deal of water from the main reser-voirs into the brake pipe of trains of carsand in order to avoid this so far as pos- of 100 single strokes per minute. TheNew York Air Brake 6A and 5Bcompressors must maintain the same num-ber of pounds air pressure with 100 sin-gle strokes of the piston per minuteagainst 13/64 and 15/64 circular This in itself is not an or asevere test for a repaired compressor orone that is in good condition, the mostdiflicult part of the requirements are con- / c D 777 / \. 4Q 38 SECTION VIEW OF .MR , SHOWING UP AND DOWN STROKE. brake is directly traceable to the condi-tion of the air cylinder of the compres-sor, or it is at the air cylinder that theair brake work usually begins. Fittingup an air pump for a locomotive han-dling modern trains of freight and pas-senger cars is a vastly different proposi-tion from that existing 8 or 10 years ago,for the reason that requirements in serv-ice are not only more rigid, but a com-pressor must pass a certain test on theshop rack and from the present time onmust be in a condition to at all timespass a test prescribed by law; thereforethe best workmanship that can be done on sible the air cylinder of the compressormust be in the best possible condition thatit can be maintained in. In order to comply with the law a Q/z-inch air pump must be in a condition tomaintain air pressure at 60 pounds persquare inch, against a 11/64-inch circularopening to the atmosphere when ru
Size: 1898px × 1317px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyork, bookyear19
