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English to Spanish translations [PRO] Tech/Engineering - Electronics / Elect Eng
English term or phrase:scoring of pump shafts
After the pump has been running for 10 minutes with steady seepage, tighten the gland nuts by one sixth of a full turn. Tighten the gland nuts at ten minute intervals, each time evenly, by one sixth of a full term, until leakage is reduced to an acceptable level. When adjustment is completed, there should be a drip leakage from the gland, ensuring that the overheating does not take place. With careful running-in, leakage may virtually be eliminated, particularly under light operating conditions. Subsequent adjustments should be made in the same way when the equipment is operating at normal working temperature and pressure. Fairly frequent replacement of the gland packing is more economical than overtightening leading to the * scoring and replacement of pump shafts*.