1.Check the submersible mud pump oil chamber has no water, if the water need to check the reasons for troubleshooting and replacement of lubricating oil; check the impeller of submersible mud pump there is no wear or cavitation, whether or not to repair or replace;
2.Check the submersible mud pump impeller and pump body seal between the ring is too large to be replaced, the pump shaft of the submersible pump is rusty deformation or wear, motor bearings are worn out of oil.
3.The motor winding insulation layer without signs of aging, the insulation resistance is too low, the three-phase winding resistance balance between stator and rotator are sweep damage traces, junction box has no water, temperature, leakage protection components, motor submersible mud pump inside and outside fastening screws are loose, and the cooling jacket there is no debris in circulating water.
4.Submersible mud pump disassembly inspection after replacement of all 0 type sealing ring, check control and protection circuit of main contactor has no oxidation or burr, submersible mud pump, thermal relay equipment is correct, the pump level submersible mud pump meter is accurate, the floating ball movement is reliable. Pump mouth and around the mud sand deposition or blockage. Submersible mud pump pump need water dredging.
5.A long time without the submersible mud pump, water should be raised, after cleaning dry, upright placed in a thousand dry ventilated indoor storage.
