Stainless steel self-priming pump motor part
1. No response after power is turned on. Most are caused by a short circuit between the power plug, the power lead, and the motor windings.
2, difficult to start or can not start, and accompanied by the sound of "å—¡å—¡". During maintenance, the blade can be quickly moved in the direction of running. If the motor runs quickly, it indicates that the starting capacitor or the starting winding is damaged. Replace the capacitor of the same capacity or repair the starting winding. If the motor is issued, most of the motor and pump head Mechanical failures such as bearing damage, impeller stuck, etc.
3. The motor can run, but the speed is slow, and the casing is overheated and has a burnt odor. Most of them are caused by short circuit of the motor winding. The motor should be disassembled and repaired by welding, jumper, isolation and rewinding depending on the damage.
4. The noise is large and the vibration is large during operation. Most of them are bearing damage or the bearing and the casing are not properly matched. It is necessary to disassemble the motor for inspection. If the bearing is damaged, it should be replaced. If the bearing runs outside, the matching surface of the pump casing can be treated with stencil; if the bearing runs inside, The wear parts of the motor shaft are treated with stenciling, and the wear is severe, and the method of turning after the first welding is used to repair.
Stainless steel self-priming pump head part
1. The motor runs normally but the water output is small or no water is produced at all. In this case, first check the seal of the water pump. When checking, first unplug the power plug, block the suction port with your hand, fill the water pump with water, use the mouth to hold the outlet and blow it inward to see if the pump head is leaking or leaking. The point is where the seal is damaged. Common fault areas include suction pad, water outlet pad, and impeller cover pad, which should be replaced during maintenance. If there is no full water phenomenon, the impeller is damaged, the water in the water absorption chamber and the water outlet chamber is eroded, the pump head water is blocked, the impeller and the pump casing are increased, and the impeller and the pump casing should be replaced. . When replacing the boring wheel, care should be taken to remove the residual copper blades in the pump to avoid damage to the new impeller again.
2. The case is charged. Most of them are damaged by water seals. Water is infiltrated into the motor through the motor shaft to deteriorate the insulation performance of the motor. It can be repaired by replacing the water seal and drying the motor. It should be noted that because the pump is in contact with water for a long time and works in the open air, it is highly susceptible to moisture and the insulation performance is deteriorated. In order to ensure personal safety, the electric stainless steel self-priming pump should be reliably grounded.
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