10. START-UP AND MAINTENANCE
Do not switch on the pump if the pump chamber is not fully filled with water.
Do not touch the electric pump unless the power of pump is cut off for over 5
minutes.
Do not remove the pump bonnet unless the water in pump chamber is
completely drained.
Stir the fan with a screwdriver to check if the pump
rotates flexibly before startup. Remove the filling
plug and prime the pump chamber fully with clean
water, then screw the filling plug. Keep the valve
wide opened during startup. When the pump runs
normally, adjust the valve to the required flow (The
range of flow and head is shown on the nameplate).
Note:
1.) If no water can be pumped in 5 minutes after the pump is filled with water and started up, turn
off and refill the pump, or check the leakage of inlet pipelines, then restart the pump.
2.)
For frost and freeze protection, remove the discharge plug on the air tank and drain the water in
the pump chamber completely. Before restart the pump, it’s necessary to remove the filling plug,
fill the pump fully with water, and then screw the filling plug.
3.)
In case of no use for a long time, discharge the water in the pump chamber and store the pump
in a dry, well-ventilated place.
4.)
If the ambient temperature is high, make sure the pump works in a well-ventilated place to avoid
electrical faults caused by dew on electrical parts.
5.)
In case of overheat or abnormal operation of the pump motor, cut off the power supply
immediately, and check the faults according to the following form.
