Nakayama NP1010 Manual Download Page 3

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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.

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

exceed 35°C.

Attention!

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.

Problem

Causes

Solution

The pump

cannot

start.

1. Unconnected power.

2. The float switch is not turned on.

1. Check power supply.

2. Lift the boat switch up.

No water.

1. Inlet obstruction.

2. The pressure hose is bent.

1. Clean the inlet.

2. Adjust the hose.

The pump

cannot

close.

1. The floater cannot sink.

1. Put the pump in the

vertical well bottom

correctly.

Flow rate is

too low.

1. Inlet obstruction.

2. Debris and particles cause the

wear of a critical part of the pump

which reduces the flow of the

pump.

1. Clean the inlet.

2. Clean the pump and

replace worn parts.

The pump

stops

working

after a short

period of

time.

1. If the water is too dirty, the

pump may stall, and the heat

protector will cut off the water

pump motor power supply.

2. If the water temperature is too

high, the heat protector will cut

off the water pump motor power

supply.

1. Disconnect the main

power supply and clean

the water pump.

2. Ensure that the

maximum water

temperature does not

exceed 35°C.

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.

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

weight.

Attention!

For rope handling, do not operate the pump without the pressure

hose to prevent the pump from twisting around its longitudinal axis.