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KCB-960 gear pump common fault and maintenance methods: ①failure phenomenon: the pump can not discharge the cause of the malfunction: (i), the opposite direction of rotation; (ii), suction or discharge valve is closed; (iii), the inlet without material or pressure is too low; (3) check the valve and pressure gauge; (4) check the liquid viscosity, the flow rate at low speed when the proportion of the flow rate is there, if there is no flow, Flow, then inflows. ② fault phenomenon: abnormal sound failure reasons: (i), the coupling eccentric or poor lubrication (ii), motor failure; (iii), reducer abnormalities; (iv) shaft seal at the installation of poor; ㈤ shaft deformation or wear countermeasures: Or fill the grease; (ii), check the motor; (iii), check the bearings and gears; (iv), check the shaft seal; ㈤, parking disassembly check ③ Failure phenomenon: pump flow failure Cause: Low; (iii), the export pipeline is blocked; (iv) packing box leaks; ㈤, speed is too low Countermeasures: (i) to confirm whether the valve is closed; (ii), check the valve is open; (iii) confirm the discharge volume is normal; Leakage affect the production, it should stop running, disassembly inspection; ㈤, check the actual shaft speed; ④ symptoms: current is too large Fault causes: (i), the outlet pressure is too high; (ii), the melt viscosity is too large; (I), check the downstream equipment and pipelines; (I), check the viscosity; (Iii), check the shaft seal, appropriate adjustments; (iv), after the parking check, with the hand crank car is too heavy ; ㈤, check the motor ⑤ failure phenomenon: the pump suddenly stop the original fault (I), power outages; (Ii) motor overload protection; (I), coupling damage; Iv, the outlet pressure is too high, interlocking reaction; ㈤, pump bite anomaly; ㈥, shaft and bearing adhesion stuck measures: Power supply; (ii), check the motor; (iii), open the safety cover, disk inspection; (iv), check the instrument interlock system; ㈤, after parking, reversing confirmation;