SHIMGE QX Series User manual

Submersible Pump
User's Manual
Models：Q(D)X, Q(D)X-T(F), Q(D), QY, QS
SHIMGE PUMP INDUSTRY GROUP CO., LTD.

Thanks for choosing our company’s products. Please read the user’s manual
carefully before operation.
Warnings!
Before operation, make sure that the electric pump is properly grounded
Do not touch the electric pump while it is running.
Do not run the electric pump without water.
Products Introduction
Models Q(D)X, Q(D)X-T(F), Q(D), QY and QS submersible pumps (hereafter
referred to as simply “electric pump”) consist of water pump, seal and motor. Models
Q(D)X, Q(D) adopt single phase, three phase asynchronous motors. Model Q(D)X
use single impeller with volute casing, The pump body is at the bottom of the motor.
It could pump the liquid and soft solid. Model Q(D) adopt multistage centrifugal
impellers with radial guide vane, apply to a large range of head environment. The
pump body is at the upper of the motor. Model QY use three phase submersible
asynchronous motor. Model QS adopt three-phase and water-filled submersible
asynchronous motor. Both pump body are on the upper part of the motor, have
centrifugal, mixed and axial type impeller with diversion casing or radial guide vane .
Because its motor is filled with water , Model QS enjoys excellent insulation feature.
The stator winding of model QS adopts water-resistance electromagnetic wire, coats
rust-resistance lacquer on the surface of stator and rotor. Filling clean water into
motor chamber make good cooling effect and avoid pollution to the water. In between
water pump and motor is double or single mechanical seal and O-rings are applied to
all fixed joint as static seal.
Due to a variety of models and wide application, these serial electric pumps are
apply to farm irrigation, garden watering and sprinkling, family use, drainage for
industry, water supply or drainage for building construction and livestock
breeding,etc.
Conditions for Use
The pump will work normally and continuously in the following conditions:
1. Maximum medium temperature:+40℃;
2. Medium pH value: 6.5 ~ 8.5;
3. Maximum volumetric ratio of solid particle in medium: 0.1%; Maximum size of
solid particle: 0.2mm:

4. The performance of electric pump must meet the requirements marked on the name
plate
5. The power of electric pump must conform to values marked on the name plate.
6. Maximum submersible depth: 5m.
Installation and Warnings:
l.Before installation, check whether the electric pump exist any damage during transit
or storage e.g. cable, plug,etc. Insulation resistance shall exceeds 50MΩ. For model
QS series water-filled submersible pump, the resistance should be higher than 0.5MΩ
when it comes to close the normal operation temperature.
2.When wiring, it needs to install creep age protection device properly. For three
phase electric pump, make sure that one yellow-green wire in cable terminal and plug
are grounded available. For three electric pump which needs equip with overload
protection device, choose matched one according to current or power marked on the
name plate.
3.Conduct no load trail test(last no more than 10 seconds). Check the rotational
direction of motor before submersion. If three phase electric pump rotates
counterclockwise, firstly cut off power supply immediately, swap over two of the
phase of the electric pump. For model QS series submersible pumps, disassemble
screw fitted at inlet and outlet and fill the motor chamber with clean water. Don’t
screw on the screw fitted at inlet and outlet again until the motor chamber is full of
water
4.Connect the hose to the outlet joint. Use the wire or clamp to fasten the soft hose
and the welded flange for steel hose and then fasten it with a rope through the handle
to carry.
5.Do not strike or press the cable and nor shall it be used as hoisting rope. Do not pull
the cable while the pump is in motion to avoid damage for cable that may lead to
electric shock.
6.The depth of the electric pump, when submersed, shall not exceed 5m and shall be
over 0.5 m away from the water bottom.
Do not place the electric pump in the mud to avoid clogging by weed and other matter
that would possibly put the pump out of action. Check the water level frequently,
while in operation, to see whether it is lowering and the electric pump shall not be out
of water while running.
7.If the electric pump is used far away from the power source, thicken the cable

according to distance (thicker than the pump cable).
8.While in operation, washing, swimming, bathing are forbidden nearby the working
area to avoid accidents.
9.1n normal operation, the built-in overload protection device shall not activate. If it
starts and stops frequently, cut off the power to find problem. Only after resolving the
trouble can it be used again
I0.For electric pump which set a limit to head, it is used within the range of head to
avoid damage due to overload.
11.Do not fill the motor chamber with waster or oil as the motor is of dry structure.
12.During operating, before removing the pump or touching it, firstly cut off the
power to avoid accidents.
13.Do not allow cable wire or socket touch the water while in operation. In case if the
cable need to be lengthened , cable lug should be sealed completely to avoid leakage.
14.After cutting off the power, don’t remove the electric pump out of water until the
motor turn cool to avoid explosion or accidents.
15. The oil chamber (QS series’ excluded, QY series’ oil chamber and motor
chamber) is filled with machine oil, which ensures the mechanical seal is
effectively lubricated and cooled. The machine oil may possibly leak out if the
pump is damaged or malfunctioned. When the pump applies to planting, animal
breeding, potable water or food transportation and processing, the leakage of the
mechanical oil may be harmful to plants growth and animals, or pollute potable
water or food.
16. If soft line damaged, the user must use the special soft line from factory or
maintenance department to purchase special component for replacement.
Maintenance
1.Regularly check the insulation resistance between the pump winding and the motor
casing, making sure that the insulation resistance exceed 1MΩ when it comes to close
the normal operation temperature. Otherwise, the corresponding measures must be
taken. It could not allow to reused until it meet requirement. For the model QS series
water-filled submersible pump, the insulation resistance should remain more than
0.5MΩwhen it comes to close the normal operation temperature.
2.After 2500 hours of normal operation, maintenance job should be taken according
to the following steps:
Dismantlement: Check all vulnerable parts, such as rolling bearing, mechanical seal,

and impeller,etc. Replacements should be arranged if damages exist. (Notice: Don'
disassemble model QY series electric pump motor soon till temperature of motor
casing turn normal. Before dismantlement, screw off the oil-filled screw slowly to
avoid of pump explosion).
Pressure test: Pressure test shall be taken after the repair or replacement. The pressure
shall remain 0.2MPa during the test period and it should last 3min till no leakage or
sweat occurrence .
Change oil: For the motor with dry structure, remove the oil-filled screw, then inject
10#clean mechanical oil (up to 80%-90% capacity of the motor chamber ) .
3.If the electric pump won't be used for a long period of time, it shall not be soaked in
the water and shall run in clean water for several minutes to remove the hard
sediments inside and outside of the electric pump, then dry it for rust-resistance
treatment, finally place it in the draughty place. For the used electric pump, it should
repaint with lacquer or rust-resistance paint again according to its erosion,
4.1f the electric pump remain unused for a long period of time, open pump casing and
move the impeller to avoid such components rust before motor start up.

Troubleshooting
Trouble Main reasons Solution
Electric
pump starts
difficultly
1. Power voltage too low.
2. Pump phase lost.
3. Impeller clogged.
4. Big loss of cable voltage.
5. Stator winding burnt.
1. Adjust voltage to 0.9-1.1 times
of the rated value.
2 . Check the switch, cable and
terminal
3. Adjust clogged part.
4. Choose proper cable.
5. Rewind and overhaul.
Insufficient
water
1. Air exist in pump chamber
2. Air leakage occurred in inlet pipe
3.Foot valve doesn’t open or clogged
seriously, large resistance exist inside
pipe, height of suction too much high
4. Air leakage occurred inside
electric pump.
1. Fill enough water to remove air.
2. Check joints and pipeline to
ensure seal completely.
3. Check whether foot valve keep
flexible, remove clogged
material, shorten the inlet pipe.
4. Adjust the submersible depth or
replace airtight packing.
Electric
pump
suddenly
stops
operation.
1. Switch disconnected or fuse burnt.
2. Impeller clogged.
3. Stator winding burnt.
1. Check whether the head in use
or power voltage conform to
requirements and adjust
accordingly.
2. Remove the foreign matter.
3. Rewinding and overhaul.
Stator
winding
burnt out
1.Winding turn-to-turn short circuit
or short circuit between phases due
to mechanical seal leakage.
2. Impeller clogged.
3.Electric pump starts and stops
frequently.
4. Electric pump runs in overload.
Disassemble the electric pump
winding , then rewind and bake in
the insulation lacquer or send it to
service agency for repair.