Self-priming pump common faults and solutions

Self-priming pump common faults and solutions

Self-priming pump in the course of the common faults are: no response after turning on the power, difficult to start or can not start, the motor can run, but the speed is slow, and the chassis overheating, running noise, vibration, the motor running Small amount of water or no water, the shell charged. Shanghai to provide you with the most professional solutions.

First, self-priming pump motor part

1, no response after turning on the power.

Most of the power plug, power leads and motor windings caused by a short circuit.

2, difficult to start or can not start, and accompanied by "buzzing" sound.

Overhaul can be used when the direction of small bamboo quickly move the fan, if the motor is running quickly, that is starting capacitor or winding damage, should replace the same capacity capacitor or repair winding; if the motor card, mostly motor and pump head Mechanical failure, such as bearing damage, impeller stuck.

3, the motor can run, but the speed is slow, and the chassis overheating, burnt smell.

Most of the motor windings caused by a short circuit, the motor should be disassembled, depending on the damage were welding, jumper, isolation, rewinding and other measures to repair.

4, running noise, vibration.

Most of the bearing damage or improper bearing with the chassis, the need to open the motor check, if the bearing damage should be replaced; if the bearing runs outside the circle, the shell can be used with the pump face 錾 spent processing; Wear parts of the shaft of the motor used to deal with Kui, serious wear and tear, the use of the method of surfacing after the first surfacing repair.

Second, self-priming pump head part

1, the normal operation of the motor but the water is less or no water.

This situation should first check the pump seal, check should first unplug the power plug, hand plug the suction port, the pump filled with water, the mouth stuck in the mouth forced inward blowing, observe whether the pump head leaks, leaking Where is the seal damage. Common parts of the faulty suction pad, outlet mat, impeller pad, maintenance should be replaced. If there is no full water phenomenon, mostly impeller damage, between the water chamber and the water chamber between the water within the septum wear, pump head water separated by grinding flat, impeller and the pump housing to increase the gap, etc., should replace the impeller and pump housing . Replace the wheel should pay attention to the complete removal of residual copper pump blades, so as not to damage the new impeller again.

2, the shell charged.

Most of the water seal damage, water penetration into the motor shaft through the motor so that the motor insulation performance deterioration can be replaced by water seal, drying motor and other methods of repair. It should be noted that, because the water pump long-term contact with the water and open-air work, easily damp caused insulation performance deterioration, in order to ensure personal safety, electric self-priming pump should be grounded.

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