or boss ofthe chuck, since the] presence of any dirt there will causethe chuck to run out of true. When the chuck is removedfrom the lathe, it should be put away standing upright andnot laid flat upon its face, in which position dust would ac-cumulate in the thread. If a piece of work requires to… … chuck, is best to set it the work as nearly true as possible,using the front screws, A A, before attempting to adjust thefour back screws, and to set the work true near the frontface of the chuck, striking the work with a mallet (on theend standing out farthest from the chuck) to true it; andthen,…
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