Danger
Outlet
Inlet
- 2 -
Check each part of the pump carefully according to steps ① through ⑥ below.
After checking them, turn on the motor.
Note that it can take up to 10 minutes for the pump to draw up liquid for the first time after
being installed, depending on the length of the suction pipe.
A long continuous operation of the pump
with the discharge valve fully closed can
cause an abnormal rise in temperature
of liquid in the pump, resulting in internal
damage to the pump.
Never operate the pump for long durations with
the valve closed in order to avoid pipe clogging.
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⑤ Be sure to install an air vent valve on the discharge pipe.
(The installation of an air vent valve will shorten the pump ’s self-priming time.)
① For either suction or force pump,
make sure the suction pipe is as
short as possible and with minimum
number of bends in the pipe.
Piping should be set up in such a way
that air does not collect in the suction
pipe and the pipe is ascending toward
the pump.
Make sure that no air is sucked in
through the connection, as this will
result in reduction of the pump’s
self-priming performance.
⑥ Prime the pump before operating it for the first time.
Operation without liquid in the pump casing can
lead to mechanical failure.
② Be sure to attach the safety cover to the rotating parts of the pump.
Do not touch the rotating parts during operation.
The safety cover is intended to prevent accidental contact with the rotating parts.
③ Check the tension of the V belt or coupling alignment.
Improper calibration of the tension adjustment or coupling
alignment will cause vibrations in the V belt that can lead
to abnormal heat generation or premature fracture of its bearings.
④ Before tightening the coupling connector bolt on the pump or installing the V belt,
check the rotation direction of the electric motor. (Rotating the motor backward can cause mechanical trouble.)
After checking the rotation of the motor, turn off the motor and tighten the coupling connector bolt or install the V belt.
Be careful not to get your clothing or fingers caught in the moving parts during operation.
No external adjustment is required because a special
mechanical seal is used for the shaft seal unit.
Danger
Danger
Important
Important
Important
2.Handing and operation
2.Handing and operation
2.Handing and operation
2.Handing and operation
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