14
Start-up, operation & maintenance.
Before opening the terminal box, please shut off the power supply to prevent an electric shock.
Before opening the coupling guards, stop pump first to prevent body injuries.
When installing the pump, please fix the foundation bolts to prevent pump from falling.
Please fill grease to the pump when it required. For motor power is less than 7.5 HP, it is free of
filling grease. For motor power is equal or bigger than 7.5 HP, please fill grease every 5000 running
hours.
Read the label on the cylinder carefully before start-up.
1. Do not start the pump until it has been filled with water or liquid fully.
Fill water in pump in inverse pouring system.
Close the pump outlet valve, release air vent screw on the pump head, and open the inlet valve slowly
until stable water flows from the air vent s-crew. Then fasten the screw.
Open the check valve completely in the inlet pipeline. In open system, fill water in pump when liquid
surface is lower than pump. (A check valve shall be installed in the inlet pipe).
Close the pump outlet valve, release air vent screw and fill the liquid in pump through the air vent screw
hole until the pump and inlet pipe line are filled with water fully.
Fasten the air vent screw again.
Do not start the pump until it has been filled with liquid fully and air vented. Be careful the
direction of the air vent screw hole. Make sure the flowing water will not hurt persons or pump or its parts
and especially, prevent from hurting for the hot water application.
2. Check the rotary direction.
Switch on the power supply and view the rotary direction by viewing the motor fan. Arrow on the pump
head indicates the correct direction of rotation. That is, from the motor end, pump shall run counter-
clockwise.
3. Check before pump start-up.
Check whether the foundation bolt is fasten.
Check whether pump is filled with water fully.
Check whether the voltage of power supply is correct.
DANGER
WARNING
WARNING
CAUTION
CAUTION
CAUTION
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