Locomotive text for engineers and firemen; a complete treatise on the engine, electric head-light and standard code of train rules (1908)
National correspondence school of railroading, Chicago. [from old catalog] · [Chicago] · leaf 203
s broken it should be tested for bycovering the exhaust port with the main valve. If theblow then ceases and steam appears at the cylinder cockit indicates a broken by-pass valve, and the cylinder cockwhich shows steam will indicate which valve is broken.A broken by-pass valve will cause a heavy… … BREAKDOWNS. 193
Locomotives
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