Figure 5.3. Rubber Draft Gear, Cutaway View.
D coupler. Since then almost all freight cars have had the E coupler; some are being equipped recently with an
F coupler and passenger cars have an H coupler. The working principles of the E, F, and H, however, are the
same.
The next two paragraphs discuss the E coupler and its maintenance. After that the Willison and hook-and-
link couplers found on foreign equipment are described.
5.6. E COUPLER
The complete E coupler is shown in figure 5.4 and its working parts are diagramed and labeled in figure
5.5. The coupler is completely automatic in the locking or coupling process; however, it must be manually
unlocked before cars can be uncoupled.
Figure 5.4. Typical E Coupler.
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