When the pump fails, we must learn to troubleshoot their handling, in order to improve the efficiency of the pump, Xiaobian now inventory under the CYZ-A-type self-priming pump common cause of the malfunction and solutions. CYZ-A self-priming pump CYZ-A self-priming pump Failure causes and solutions Faults Causes of formation Remedy No oil from the suction pump 1. There is no liquid or liquid in the pump casing Insufficient suction pipe leakage 3 . Speed ​​too low 4. Suction is too high or suction pipe is too long 5. The mechanical seal leakage is too large 6. Suction pipe gas can not be discharged from the outlet 1. Add enough storage 2. Check and rule out the air leakage 3. Adjust the speed 4 Reduce suction or shorten suction line 5. Repair or replace 6. Expelled from sucking pump Noise and vibration are large 1. Unstable foot 2. Pump shaft bending 3. Cavitation 4. Bearing wear is serious 5. Out of the pipeline there are debris 6. Both the pump and motor spindle is not the heart 1. Reinforcement 2. Replacement or calibration 3. Adjustment 4. Replacement 5. Clear debris 6. Adjust the coaxial self-priming oil pump output Insufficient 1. Impeller flow path and suction pipe is blocked 2. Impeller or impeller seal wear seriously 3. Insufficient or low speed 1. Exclusion of obstruction 2. Change the mouth ring 3. Add enough power to adjust the speed of self-priming pump Excessive shaft power consumption 1. Excessive flow rate 2. High rotational speed 3. Bending shaft or impeller card collision 4. Blocking or getting stuck in the pump flow passage 1. Raising the outlet pressure 2. Appropriate 3. Replace low or line blockage correction 4. Further Reading: pump valve pipe fittings Exhibition 2016 Exhibition of Information Industry, Internet (Xiamen) Technology Co., Ltd. Author: Asian pumps Network Editor: Yao Xiaoxia (QQ / micro letter: 2355962924) http: //beng.liuti.cn/ (service hotline: 400-6030-811)