Читать книгу Locomotive Engine Running and Management онлайн
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OUTSIDE INSPECTION.
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In going round the outside of the engine, the most important points for examination are the guides and the rods. Guide-bolts, rod-bolts, and keys, with the set screws of the latter, are the minutiæ most likely to give trouble if neglected. In going about the engine oiling, or for any other purpose, it is a good thing to get in the habit of searching for defects. When a man trains himself to do this, it is surprising how natural it comes to make running inspections. As he oils the eccentric-straps, he sees every bolt and nut within sight; as he drops some oil on the rods, he identifies the condition of the keys, set screws, or bolts; while oiling the driving-boxes, the springs can be conveniently examined; and, when he reaches the engine-trucks with the oil-can, he is sure to be casting his searching eyes over the portions of the running-gear within sight.
OIL-CUPS.
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The oil-cups should be carefully examined, to see that they are in good feeding-order. A great many feeders have been invented, which guarantee to supply oil automatically; but I have never yet seen the cup which could long dispense with personal attention. And this does not apply to locomotives alone, but to all kinds of machinery. The worst sort of oil-cup will perform its functions fairly in the hands of a capable man, and the most pretentious cup will soon cease to lubricate regularly if the engineer neglects it. The oil-cups should be cleaned out at regular intervals: for mud, cinders, and dust work in; and they sometimes retain glutinous matter from the oil, which forms a sticky mixture that prevents the oil from running. The eccentric-strap cups and the tops of the driving-boxes should receive similar attention.