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4.2 Flow Adjustment (See above 2.3 Flow Adjustment)
4.3 Operation
Upon completion of the above preparatory work and confirmation, start the motor and put it into operation. The
operation process should be stable, and there should be no abnormal noise, otherwise please shut down the pump to
check. After finding the source of noise, please put it into operation again.
4.4 Flow Calibration
Pump flow calibration test should be carried out in the initial pump operation, so as to confirm the exact flow
under specific operating conditions. The stroke is usually set when the flow is 100%, 75%, 50%, 30%, 10%
respectively. By calibrating the pump flow, it is sufficient to indicate the performance of the pump in the whole
regulating range.
4.5 Shut Down the Pump
The outlet valve should be in the full open state to reduce the discharge pressure of the pipe to normal pressure,
and then cut off the power supply to stop the motor operation.
4.6 Oil filling into diaphragm chamber of hydraulic diaphragm metering
pump
When the pump leaves the factory, the pump diaphragm chamber is full of transformer oil, so the users do not
need to disassemble it for refilling. In the following circumstances, it is necessary to fill oil into the diaphragm
chamber:
1) Hydraulic oil leaks from the diaphragm chamber at the cylinder block side after disassembly of the oil
makeup valve for cleaning;
2) Hydraulic oil leaks from the diaphragm chamber at the cylinder block side after disassembly of cylinder
head (pump head) and replacement of the diaphragm.
3) Oil filling into the diaphragm chamber: to empty the gas from the diagram chamber in the shortest time,
shorten the commissioning time, and put the hydraulic system into normal operation quickly.
