Troubleshooting - Nakayama NP1010 Manual

EN
SET TOGGLE SWITCH
- A change-over switch is a device that can be steplessly adjusted. For this, you first need to loosen the screws. The position control height of the switch water
can be set by stepless adjusting the length of the power line.
- Please check the following items before the pump starts running:
• A float switch must be installed so that it is easy to switch between the ON and OFF switching points. This should be checked, and the floating switch should
be carefully picked up and put down again. When you do this, pay attention to the switching status of the switch.
• Ensure the distance between the top of the floating switch and switch line card buckle is not too small. If the distance is too small, it cannot guarantee normal
work.
• When you set up the float switch, make sure that the switch does not touch the base before the pump is opened. Warning: There is a risk of dry running.
• Set the switch to automatically control the height of the water level by adjusting the position of the float switch cable at the card line.
CONNECTING PRESSURE PIPE
• Screw the pressure pipe onto the pressure connector. All joint connections must be sealed with a threaded sealing stripe.
• When using the hose, screw the right hose adapter into the pressure connector.
• Secure the hose firmly to the hose adapter and secure it with a hose clamp.
• If it is used occasionally, please use a suitable pipe. A rigid pipe with a check valve is recommended for use in a fixed position. This can be done at the close
of the machine to prevent liquid backflow.
Use a strong rope to connect the handle of the pump and dip it into the liquid to be conveyed at a certain angle, so that the lower side of the device has no
bubble formation to prevent the bubbles from being sucked in.
Put the equipment down slowly, and once the pump is submerged, it can be adjusted again.
The pump is arranged at the bottom of a liquid container.
Fasten the end of the rope after lowering so that the pump can also be handled when hanging on the rope.
The pump can work after the device is connected to the main power source.

TROUBLESHOOTING

In most cases, you will be able to troubleshoot problems easily by yourself. Before you contact us, please refer to the following table for technical support. This
will help you save a lot of work and possible expenses.
3
Risk of equipment damage.
Do not lift the pump by cable or pressure hose, because these cables
or pressure hoses are not designed for tensile strength from pump
Attention!
weight.
For rope handling, do not operate the pump without the pressure
hose to prevent the pump from twisting around its longitudinal axis.
In continuous use of a pump with a rope, the condition of the rope
must be checked periodically, as it may break with increasing use
Attention!
time.
The pump is not designed to transport corrosive substances,
flammable and explosive substances such as gasoline, petroleum,
nitro diluent, grease, oil, brine and toilet equipment sewage, as well
as low mobility mud sewage. The temperature of the liquid cannot
Attention!
exceed 35°C.
Problem Causes
The pump
1. Unconnected power.
cannot
2. The float switch is not turned on.
start.
1. Inlet obstruction.
No water.
2. The pressure hose is bent.
The pump
cannot 1. The floater cannot sink.
close.
1. Inlet obstruction.
2. Debris and particles cause the
Flow rate is
wear of a critical part of the pump
too low.
which reduces the flow of the
pump.
1. If the water is too dirty, the
The pump pump may stall, and the heat
stops protector will cut off the water
working pump motor power supply.
after a short 2. If the water temperature is too
period of high, the heat protector will cut
time. off the water pump motor power
supply.
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Solution
1. Check power supply.
2. Lift the boat switch up.
1. Clean the inlet.
2. Adjust the hose.
1. Put the pump in the
vertical well bottom
correctly.
1. Clean the inlet.
2. Clean the pump and
replace worn parts.
1. Disconnect the main
power supply and clean
the water pump.
2. Ensure that the
maximum water
temperature does not
exceed 35°C.