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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Pressure gauge repair?
Does anyone know how to adjust mechanical pressure gauges? I tried to
fix one this morning and couldn't get the pointer to rest right at the peg. I repeatedly moved the Bourdon tube carefully until the sector ran off the pinion in the low-pressure direction, moved the pointer about 90 degrees backward, then let the sector re-engage. The zero would land slightly on either side of the peg. This 30PSI gauge had been over-pressured to possibly 50, so maybe I should have readjusted it by squeezing the bent link that connects the tube and sector gear but I want to ask before doing this. I don't have a puller for the hand. TIA Jim Wilkins |
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