. The science of railways . t piston rod(60) ? It should be cooled off with oil, the enginebeing kept moving slowly meanwhile. Watershould not be used in cooling a piston rod. If a piston rod (60) should break and knock outthe forward cylinder head (64), how would youdisconnect ^ I would disconnect the valve stem(49) at the connection (51) and cover the ports(56) and remove the broken parts. Why would you not take down the main rod(92) ? Because there would be no harm in leav-ing it up. What should be done if one of the glands thatholds the piston rod packing (59) In place wasblown out, thereb
. The science of railways . t piston rod(60) ? It should be cooled off with oil, the enginebeing kept moving slowly meanwhile. Watershould not be used in cooling a piston rod. If a piston rod (60) should break and knock outthe forward cylinder head (64), how would youdisconnect ^ I would disconnect the valve stem(49) at the connection (51) and cover the ports(56) and remove the broken parts. Why would you not take down the main rod(92) ? Because there would be no harm in leav-ing it up. What should be done if one of the glands thatholds the piston rod packing (59) In place wasblown out, thereby breaking off one lug and onebolt? The piston gland should be blocked orsecured, if possible; if not, the engine should bedisconnected on that side. What will indicate that an eccentric {BB ) has slipped on the axle {A) ? The irregularsound of the exhaust. How can you determine which eccentric hasbeen displaced? By running the engine slowlywith the link first in full forward motion, then OF THE LOCOMOTIVE ENGINEER 71. ca CO be a .■^ « ^^ . *j -^ c 0) — ^ r ^ is 3 . • o x> ^^ C3 ^ S a; s- ^ i^ I I I I I ^j ^l I o St: O id C;§§IPU 1 ? =3 2 t-c t-1 »:< .*i*^ Ad 00 is V C C! O i2O OJ O cO O (U S O) (U 05 O O-J? r- <!j 1 I ^ffl o -^ t^ 7: 7 r-c .2 • -^ CU y 73 U ^^ tH OW I 72 DUTIES AND RESPONSIBILITIES ill full backward motion, and observing if thesteam is admitted at each end of the cylinderjust before the crank pin reaches the dead effect of a slipped eccentric on the valve iseither to increase or diminish the lead. If theeccentric has slipped toward the crank pin, thelead will be increased and steam will be admittedto the cylinder sometime before the pistonreaches the end of its stroke. If it has slippedaway from the crank pin, the lead will be dimin-ished, or taken away entirely, and steam will notbe admitted until after the piston has reachedthe end of its stroke.* The admission of steamis indicated by its escape from the cylinder cocks,w
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1900
