Well pump in place should be carried out before the inspection
First, the well pipe diameter and straightness of well pipe should be consistent with the provisions of technical documents. Pumping unit into the well part of the shaft should be free up and down. Submersible pumps must not damage the diving cable. Second, well pipe nozzle protruding base corresponding plane height should not be less than 25mm (pictured). Third, well pipe and foundation should be placed soft isolation layer. Fourth, the basic size of the central reserve space should be consistent with the pumping pipe and pump seat connection requirements. Five, well tube should be no sludge and contaminants. Six, Yang pipe should be straight. Thread and flange face should not bruise, and should be cleaned. Seven, long axis deep well pump should be checked according to the following requirements: 1. Workpiece rotation should be flexible, the axial displacement of the impeller shaft should be consistent with the provisions of equipment and technical documents. 2. Pump drive shaft end surface should be smooth, end and thread should be no damage, and should be cleaned. Driven shaft at both ends of the case of support, the central radial runout should not exceed 0.2mm. 3. Bearing bracket and rubber bearings should be intact. Rubber bearings should not be contaminated with grease. Eight, wells with submersible pumps should be checked according to the following requirements: 1. Flange to protect the cable groove, there must be no burr or sharp corners. 2. Cable connector should be immersed in water at room temperature 6h. 500V shake table measurement, insulation resistance should not be less than 100MΩ. 3. Wet submersible motor stator windings immersed in water or oil at room temperature for 48h, the insulation resistance of the chassis should not be less than 40MΩ. Sinotruk has Steyr and HOWO brands of heavy duty trucks with following series: HOWO, Steyr Wangpai, Steyr, Huanghe Golden Prince, Huanghe Shaoshuai, Huanghe Commander, Hao Jun and Hao Yun, including trucks, military special vehicles, self-dumping trucks, towing vehicles, tilting trucks, coaches, cement mixing trucks, concrete mixing trucks, concrete trucks, special vehicles and chassis and other models. Dump Truck, Tractor Truck, Semi-Trailer, Tank Truck, Mixer, HOWO Truck Top Lead International Trading Co., Ltd , https://www.topleadchina.com