Arc gear pump failure: (1) Symptom: the pump can not discharge the cause of the malfunction: a. The opposite direction of rotation; b suction or discharge valve is closed; c inlet or pressure is too low; d viscosity is too high, Pump can not bite countermeasures: a. Confirm the direction of rotation; b. Confirm the valve is closed; c. Check the valve and pressure gauge; d. Check the viscosity of the liquid at low speed flow rate according to the proportion of speed is there, if the flow, then Inadequate inflow (2) Symptom: Insufficient pump flow Problem Cause: a. Suction or discharge valve is closed; b. Inlet pressure is low; c. Outlet line is blocked; d. Confirm whether the valve is closed; b. Check the valve is open; c. Confirm the discharge is normal; d. Tighten; a large number of leaks affect production, should stop running, disassembly inspection; Arc gear pump operation and maintenance: (1) Check before starting the flange of all pipelines, joints of the seal. (2) Panning coupling, no friction and collision sound. (3) The first start should be injected into the pump (4) The valve should be fully opened before the start of inhalation and discharge pipe, valve is strictly prohibited to start (5) to verify the direction of motor rotation, start the motor.
