Railway and Locomotive Engineering . emensDepartment of your valuable paper. F. C. PiCKARD, Mem. Executive Committee. Setting Eccentrics Before Wheels areUnder Chas. regard to the setting of eccentricson locomotive drivers, we have foundthat it is very inconvenient in the Clin-ton, la., shops of the Chicago & North-western Railway, or rather we havefound it to be very difficult to key ec-centrics on and properly fasten themunder an engine, especially the largeengines mostly used now, where thingsare so compact underneath as to givevery little room to work. If one has totake
Railway and Locomotive Engineering . emensDepartment of your valuable paper. F. C. PiCKARD, Mem. Executive Committee. Setting Eccentrics Before Wheels areUnder Chas. regard to the setting of eccentricson locomotive drivers, we have foundthat it is very inconvenient in the Clin-ton, la., shops of the Chicago & North-western Railway, or rather we havefound it to be very difficult to key ec-centrics on and properly fasten themunder an engine, especially the largeengines mostly used now, where thingsare so compact underneath as to givevery little room to work. If one has totake the eccentrics off to cut key-ways after the valves are set it usually means motion is not level then we use a a delay of a day or more in finishing plumb-bob and set the board to the the engine, therefore it is important to right incline. The plumb-bob frame get the valves set as quickly as pos- can be marked for the proper incline sible, and if the eccentrics are set and for different classes of engines. We Rocker Ann PUiinb/. keyed on beforehand it is a small mat-ter to set the valves, simply to adjustthe blades in full gear, see the valveswork square in the hooked-up workingposition and fill out the is important that the eccentrics beput on as securely as possible and it isalmost impossible to do this properlyunder the engine, and eccentrics fre-quently work loose on the keys, whichcripples an engines valve motion, andthis is a trouble that is not very oftenlocated by the engineer, nor even bytlie inspector, as it appears all right un-til the engine is working. We find that it is a more satisfactory method to set the ec-centrics, cut the key-ways (if on a newaxle), key them on and finish them onthe floor while the wheels are out. Wehave set all eccentrics in our shop onthe floor for the last fifteen years andwe seldom have one to alter when wecome to set the valves. If, as some-times happens, they do not appear tobe the same in both motions o
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