Common faults and countermeasures for high-pressure gear pump operation are as follows: a , power outage; b , motor overload protection; c , the coupling is damaged; d , the outlet pressure is too high, interlocking reaction; e , the pump bite abnormal; f , the shaft and the bearing stick and stick. a , check the power supply; b , check the motor; c , open the safety cover, check the car; d , check the instrument interlock system; e , after parking, positive reversal confirmation; f , confirm the car. a , the coupling is eccentric or poorly lubricated b , motor failure; c , the gearbox is abnormal; d , poor installation of the shaft seal; e , the shaft is deformed or worn. a , align or fill the grease; b , check the motor; c , check bearings and gears; d , check the shaft seal; e , parking disassembly check. a , the direction of rotation is opposite; b , the suction or discharge valve is closed; c , the inlet is not material or the pressure is too low; d , the viscosity is too high, the high pressure gear pump can not bite. a , confirm the direction of rotation; b , confirm whether the valve is closed; c , check the valve and pressure gauge; d . Check the viscosity of the liquid. If the flow rate is proportional to the speed at low speed, if there is flow, the flow will be insufficient. See more: http:// Laser Illumination Cameras,Portable Laser Binoculars,Portable Laser Night Vision,Long Range Laser Night Vision Hope Wish Photoelectronic Technology Co., Ltd , https://www.irhpws.com
(1) Fault phenomenon: high pressure gear pump stops suddenly
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(2) Fault phenomenon: abnormal sound when the high-pressure gear pump is running
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(3) Fault phenomenon: high pressure gear pump can not discharge
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(4) Fault phenomenon: insufficient flow of high pressure gear pump
   The cause of the failure: a , the suction or discharge valve is closed; b , the inlet pressure is low; c , the outlet line is blocked; d , the stuffing box leaks; e , the speed is too low.
   Countermeasures: a , confirm whether the valve is closed; b , check whether the valve is open; c , confirm whether the discharge is normal; d , tightening; when a large number of leaks affect production, stop operation, disassembly inspection; e , check the actual pump shaft Rotating speed.
(5) Fault phenomenon: high voltage gear pump current is too large
   The cause of the failure: a , the outlet pressure is too high; b , the melt viscosity is too large; c , the shaft package is poorly fitted; d , the shaft or bearing is worn; e , the motor is faulty.
   Countermeasures: a , check downstream equipment and pipelines; b , check viscosity; c , check shaft seals, adjust properly; d , check after parking, whether the hand truck is too heavy; e , check the motor.