. Locomotive text for engineers and firemen; a complete treatise on the engine, electric head-light and standard code of train rules . PLATE 97. Back Hanger of the Back Spring with UnderhungRigging. If the back hanger of the back spring ofan eight-wheel underhung engine is broken, the backdriver should be run on a wedge, a block placed ontop of the front driving box, the back driver run offthe wedge. The forward driver should then be run. PLATE 98. BREAKDOWNS. 219 on a wedge, a block placed between the back endof the back spring and the lower rail of the frame,and the forward driver run off th
. Locomotive text for engineers and firemen; a complete treatise on the engine, electric head-light and standard code of train rules . PLATE 97. Back Hanger of the Back Spring with UnderhungRigging. If the back hanger of the back spring ofan eight-wheel underhung engine is broken, the backdriver should be run on a wedge, a block placed ontop of the front driving box, the back driver run offthe wedge. The forward driver should then be run. PLATE 98. BREAKDOWNS. 219 on a wedge, a block placed between the back endof the back spring and the lower rail of the frame,and the forward driver run off the wedge. Xext runthe back driver on the wedge, remove the block fromthe front driving box, and run the back driver off thewedge. The engine is then ready to proceed (Plate98). Forward Hanger of the Front Spring with Under-hung Rigging. If the forward hanger of the frontspring of an eight-wheel underhung engine is broken,the back driver should be run on a wedge. Thisraises the frame off the front driving box and per-mits a block to be placed on top of the front driv-ing box and under the main frame. The back drivershould then be run off the wedge and the front driveron a wedge, which will relieve the tension of thespring rigging. The front end of the front springshould then be pried down, a block placed under thelower rail of the frame and on top of the front endof the spring, the front driver then run off the wedge andthe back dri
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