First, the installation and use 1, check the pump out of the box nameplate, proofing the main parameters of self-priming pump product is consistent with the requirements. 2, self-priming pump should be installed horizontally, the pump body can not withstand the weight of the pipeline. 3, pumps and piping should be kept well sealed. 4, the pump should be checked before use, the motor blades to be flexible rotation, stop living and abnormal sound phenomenon, the solid body to be solid. 5, unscrew the water pump above the bolt, add less than one-third of the liquid storage tank volume of the second, tighten the bolt. 6, connected to the power trial about, from the motor side, the operation is consistent with the pump steering mark. 7, the pump stopped working, first close the discharge valve, then turn off the power, and finally close the suction pipe valve. Second, ZCQ magnetic pump self-priming precautions 1, due to the cooling and lubrication of magnetic pump bearings are transported by the media, it is absolutely forbidden to dry run, while avoiding the power outage after the restart caused by the time-space load operation. 2, was transported medium, if it contains solid particles, the pump inlet to add filter: If containing ferromagnetic particles, the need to add magnetic filter. 3, the pump should be used in the ambient temperature should be less than 40 ℃, motor temperature rise must not exceed 75 ℃. 4, the medium being transported and its temperature should be within the allowable range of the pump (see the attached table). The temperature of the metal pump is less than 100 ℃, the specific gravity of the conveyed medium is less than or equal to 1.3, and the specific gravity of the medium is less than 1.3, the technical performance will be affected. 5, for the transmission fluid is easy to precipitate crystallization of the media, after use should be promptly cleaned, drain the pump effusion. 6, self-priming pump operation 500 hours, the bearing should be demolished and end face ring wear, if the bearing and sleeve clearance greater than 0.5 ~ 1mm, impeller axial play 0.5 ~ 2mm, should replace the bearing and axial Moving ring. Three, ZCQ magnetic self-priming pump failure causes and solutions Fault form causes Remedy Magnetic self-priming pump no water a, the pump reverses to change the motor wiring b, the inlet pipe leakage to prevent leakage c, the pump chamber too little water Increase the water storage capacity d, the voltage is too high, the coupling slip when starting to adjust the voltage e, suction stroke is too high to reduce the sand installation location f, the valve does not open to correct or change the valve magnetic pump suction flow is insufficient a, suction pipe diameter is too small or Blockage exchange water inlet pipe b, impeller blockage obstruction cleaning impeller c, lift high open large outlet valve d, the speed is not enough to restore the rated speed magnetic self-priming pump head is too low a, the flow is too big clearance valve b, the speed is too low recovery Rated speed magnetic self-priming pump noise is too large a, serious wear and tear shaft replacement pump shaft b, sleeve serious wear and tear replacement bushing c, drive magnet cup and isolation sleeve contact remove the pump head reassembly d, seal ring and impeller grinding replacement Push ring, seal ring Magnetic self-priming pump leak O-ring damage Replace the O-ring