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Minor repair: 3 ~ 6 months
In the repair: 12 to 18 overhaul: 24 to 36 Note: 1.Sz-3 the following pump does not arrange overhaul, overhaul content into the repair.
2. When the unit status monitoring means have been carried out to predict the conditions for maintenance, after the approval of the competent authorities at the higher level, may not be subject to the above restrictions.
2 Maintenance 2.1 Minor repairs 2.1.1 Check, fasten all the connecting bolts.
2.1.2 replace the packing, adjust the mechanical seal.
2.1.3 Check the coupling, replace the elastic rubber ring to correct the coaxiality of the coupling.
2.1.4 Check the bearings, replace the lubricating oil (grease).
2.1.5 clean, check the circulating water system.
2.2 in repair 2.2.1 including minor repair content.
2.2.2 check the rotor sway, check the rotor static balance.
2.2.3 Check or correct the straightness of the shaft.
2.2.4 replace the rolling bearing and lubricating oil.
2.2.5 Maintenance mechanical seal, repair or replacement of dynamic and static seal ring.
2.2.6 Check the adjustment of both ends of the impeller and the front cover, after the benefit of the gap.
2.2.7 calibration instrument.
2.3 overhaul 2.3.1 including the repair content.
2.3.2 disintegration of the various parts of the wear and tear, corrosion, the extent of damage to the ceramic lining, inspection or replacement parts spare parts.
2.3.3 replace the impeller, sleeve, pump cover.
2.3.4 adjust the level of the pump body.
2.3.5 repair motor.
2.3.6 body corrosion.