The adjusting knob 47 is screwed at {HEAD ~ the lower end} in {TAIL ~ the machine frame} 2 and has a smaller diameter hole 48 in the upper end portion and a larger diameter hole 49 in the lower end portion 
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The adjusting knob 47 is screwed at { HEAD ~ the lower end } in { TAIL ~ the machine frame } 2 and has a smaller diameter hole 48 in the upper end portion and a larger diameter hole 49 in the lower end portion
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH