To ensure the submersible pump good performance of the submersible pump should be reviewed regularly? Torn hip?ãƒ? Once a year), and good maintenance records. â‘ hand to turn the submersible pump to see if the submersible pump rotation is flexible, check the submersible pump pipe and joints are loose or leaking. 检 check the crisp 诘 诘 è ¡ è ¡ è ¡ è ¡ ä¿ ?? to ensure that the oil level near the centerline of the oil, and, as appropriate, timely replacement or supplement. â‘¢ Check submersible pump cable for damage and power supply, electrical installations are reliable, power supply voltage and frequency are consistent with the requirements of the nameplate, the deviation is within the scope of the conditions of use permit. â‘£ Submersible pump installed, it should be taken to start the motor, try to see the motor steering is correct. After each shutdown and boot, you must determine its thermal and cold insulation resistance, in order to observe the change in insulation resistance. ⑤ submersible pump in the first month of work, after 100 hours of work, you should replace the oil, after every 1000 hours of oil change time. On the water-filled submersible pump also need to regularly replace the upper and lower end caps, bearing oil seal and lithium-based interior room to ensure good lubrication. â‘¥ often adjust the packing gland to ensure that the water drip filling room is normal (with 60 drops / min is appropriate). ⑦ regular inspection sleeve wear, wear occurs when larger should be promptly replaced. ⑧ submersible pump used in the winter season, after parking, you must unscrew the drain plug the lower part of the pump body, and the media net, in order to prevent the pump body cracking. ⑨ Submersible pump long-term disabled, you can not let it immersed in the water, the pump must be raised outside the well, and then the pump all open, dry moisture. The rotating parts and joints coated with grease installed, stored upright at room temperature (winter temperature of not less than -5 ° c), dry, non-chemical corrosion items in place and properly stored.