What are the common faults and maintenance methods of corrosion-resistant self-priming pumps? As described below:
The pump head part of corrosion-resistant self-priming pump:
1. Most cases where the casing is electrified have water seal damage, causing water to seep into the motor through the shaft and deteriorate the insulation performance. This can be repaired by replacing the water seal or drying the motor.
2. Although the motor is running normally, the water output is low or not at all. In this case, the sealing of the pump must be checked first. When checking, first unplug the power plug, block the suction port with your hand, fill the pump with water, hold the mouth with your mouth and blow air inside with force, observe whether the pump head leaks water, that is, if the seal is damaged. Common faulty parts include the suction port gasket, outlet gasket, and impeller cover gasket, which should be replaced during maintenance.
Corrosion resistant self-priming pump motor part:
1. There is no response even after connecting the power supply. This situation is mostly caused by short circuits in the power plug, power outlet, and motor coil.
2. Difficult to start or unable to start, accompanied by a buzzing sound. During inspection, a small bamboo blade can be used to quickly move the wind shear in the driving direction. If the motor runs quickly, it indicates that the starting capacitor or starting coil is damaged. Please replace the capacitor with the same capacity or repair the starting winding. If it is a problem with the motor, it is mostly caused by mechanical failures of the motor and pump head, such as bearing damage, impeller adhesion, etc.
3. The motor can work, but the speed is slow and the casing is overheated, with a burnt smell. Most of them are caused by short circuits in the motor coils, and the motor needs to be disassembled. Depending on the damage, measures such as welding, jumper wires, isolation, and rewinding should be taken for repair.
4. There is loud noise and vibration during homework. In most cases, due to bearing damage or improper fitting between the bearing and the housing, the motor should be disassembled and inspected. If the bearing is damaged, it should be replaced.