. The science of railways . k. What should be done if an engine truck wheel(71) or axle (73) breaks? Remove the brokenwheel or axle and chain the truck frame to theengine frame, as shown in Fig. 21. How should a broken tank truck, wheel or axlebe treated? By removing the broken wheel andaxle, placing a cross tie on top of the tank andsuspending the truck to it with chains, afterwardsproceeding slowly to destination. What is the object of equalizers and springs?(See Figs. 22, 23 and 24.) To distribute theweight of the locomotive more equally upon allthe bearings and to make the engine ride easi
. The science of railways . k. What should be done if an engine truck wheel(71) or axle (73) breaks? Remove the brokenwheel or axle and chain the truck frame to theengine frame, as shown in Fig. 21. How should a broken tank truck, wheel or axlebe treated? By removing the broken wheel andaxle, placing a cross tie on top of the tank andsuspending the truck to it with chains, afterwardsproceeding slowly to destination. What is the object of equalizers and springs?(See Figs. 22, 23 and 24.) To distribute theweight of the locomotive more equally upon allthe bearings and to make the engine ride easier,thereby lessening the wear and tear on the ma-chinery as well as affording greater comfort tothe enginemen. When the springs and equalizers are in order,where is the weight of the engine carried ? Theframe and the boiler resting upon it is supported atthe engine truck center in front and at the ful-crums of the equalizers and, from these latterpoints of suspension, the weight is transferred OF THE LOCOMOTIVE ENGINEER. 83. 84 DUTIES jiXD RESPONSIBILITIES through the equalizers and springs to the springsaddles resting directly upon the driving boxes.* How is the weight carried when an engine isblocked up on top of the boxes? On perfectlysmooth track there would be little difference, buton rough track there would be times when thewhole weight of one side would come upon thebox that is rigidly blocked. What makes the best blocking for use betweenthe driving boxes and the frame? Good hard-wood, because of its greater elasticity than metaland it also remains in place better. What should be done if a driver spring (141),spring hanger (142) or equalizer (143) breaks?With heavy engines such as those in use, en-gineers are not expected to jack up the if the engine is small, the quickest way isto raise it by placing wedges (see Fig. 9) on therail, if possible, as time is an important consid-eration; but this should be done carefully, asother springs or hangers may be broken
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