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2. Pump operation
■ Start-up
1.
Before pump operation, check
that each tube connection is
secured.
2.
Check that a suction tube is
connected to the inlet and a dis-
charge tube is connected to the
outlet.
CAUTION
If a suction line and a discharge
line are connected the other way
around, pumping process is
inverted.
3.
Check that the pump is firmly
fixed on a mounting position.
■ Operation
Operate the pump according to the following steps.
No.
Procedure
Contents
1
Check tubing, wir-
ing and voltage.
● Check installation, tubing and wiring
are properly done and wiring system
is fused.
● Check the spec label to see if power
supply voltage is correct.
2
Open valves.
● Fully open both discharge and suction lines.
3
Supply power to the
pump.
● After checking the items 1 and 2. Turn
on power and start the pump.
● Smooth starting may not be obtained
when ambient temperature is 10ºC or
below. In this case, run the pump with
no discharge line pressure for a few
minutes to warm it up.
● Smooth starting may not be obtained
when the pump chamber is filled with
liquid. Get rid off liquid before operation.
4
Adjust air flow.
● After the pump has reached a speci-
fied stroke rate, initiate full scale
operation.
● Always adjust an air flow by a suction
valve.
5
Points to be
checked during
operation
● After starting, check a pressure gauge
to see if suction and discharge line pres-
sure are correct and an air flow meter to
see if the specified air flow is obtained.
● Keep a suction line pressure at or
below atmospheric pressure.
● In case electric power has failed while
the pump is running, switch off main
power. Otherwise, the motor may not re-
start or may burn out depending on a line
pressure at the time of power recovery.
Operation
