Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives (1916)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co., pub. for Sears, Roebuck & co. · leaf 445
s a fewmoments attention each day to keep the plant inperfect condition. If the commutator becomes rough or out of round,it should be trued up in a lathe. The tool used mustbe very sharp, and light cuts must betaken, then polishit with fine sandpaper. It must be carefully examinedto see that no two… … Ftgure 214 INJECTORS, STEAM GAUGES, ETC. 433 face, for it does not wear away as fast as the copper,and if the mica is not cut away it may lead to spark-ing. After doing this, be sure no ragged edges ofcopper stick up, for this will cut away the brushesrapidly. The speed of the armature should be as…
Locomotives
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