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 27
eping the oilat the proper temperature in cold weather. Whereheavy oil is used an air pressure of about five poundsis maintained upon it in order to keep up the properflow, unless the oil is heated by the coil or the weather. Emergency Valve. To provide for emergencies, incase the engine becomes… … FIG. 13
Locomotives
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