Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 335
When drifting down long grades this shouldbe reversed, on account of the larger surface to belubricated on L.-P. side. Always run with lubricatorsteam valve wide open. By-Pass Valves. Some of the compound locomotivesrecently built are equipped with by-pass valves, pro-vided to admit of engines… … COMPOUND LOCOMOTIVES 329 On new engines the by-pass valves should be cleanedfrequently, as their free movement is liable to be hin-dered by gumming or the presence of core sand. Should a by-pass valve become broken or in any waydefective, take off the valve body and insert a blindgasket between it…
Locomotives
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