SHIMGE JET Series User manual

Models: JET、SGJW、PJ、PTB
Mini-type Clean-water Electric Jet Pump
SERVICE MANUAL

I. Safety Precautions
II. Product Introduction
III. Operating Conditions
IV. Structure Diagram
V. Pump Wiring Diagram
VI. Installation Diagram
VII. Instructions for Installation
VIII. Maintenance
IX. Troubleshooting
Contents

Ground wire
Gas pipe
An Electric Pump involved hereunder shall be equipped with an
electrical leakage protection device properly and reliable grounding
shall be provided at the place where the grounding sign of the Electric
Pump or the cable lies (the grounding conductor shall be connected to
the terminal mark) and the connected power socket shall be reliably
grounded as well. As shown in the below figure, the ground wire shall
not be connected to a gas pipe, for it may result in an explosive; and
the plug shall not be wet and the power socket shall be located at a
place which will not be affected by moisture.
Electrical connection shall be
done by a holder of an electrician
license in accordance with the
relevant local code and safety
standard.
Danger: Failure to observe the relevant rules will cause an electric shock.
Warning: Failure to observe the relevant rules will cause serious personal injuries.
Notice: Failure to observe the relevant rules will cause damage to the relevant product.
It means that touch is prohibited.
It means the relevant rules shall be observed.
It means the prohibited actions.
It is a symbol of ground wire in case of an electric shock.
Thank you very much for choosing our products, and please read over the Operating Manual
and keep it properly before the installation and use. The improper usage may lead to personal
injuries and property damages.
There are such symbols as “Danger”, “Notice”, and “Warning” in this Operating Manual,
aiming to guarantee the correct use of the products involved and prevent hazards and damages.
Please strictly follow them.
I. Safety Precautions
Statement: Any hazard or loss generated by any of the following circumstances where the
content hereof is not observed shall not belong to the scope of the Company's quality warranty:
• Any disassembly or repair by any unqualified person or any usage of any water pump
hereunder independent of its operating conditions makes the water pump unable to normally
operate;
• Any loss is caused by voltage or machinery or a chemical reason; or
• Any environmental pollution caused by the use of any dangerous medium.

An Electric Pump involved shall only used to
deliver clean water and other liquids whose
property is similar to that of water and shall not be
used to transport any flammable, easily-gasified or
explosive liquid, like petroleum or ethyl alcohol,
which is very dangerous.
Oil Petroleum
An Electric Pump hereunder shall be installed at a cool and dry place. If it is necessary
to arrange such a pump outdoors, please do not expose it to direct sunlight as exposure
to direct sunlight may easily cause accelerated aging and electrical leakage of the water
pump. Do not place the Electric Pump horizontally or submerge the Electric Pump in
water. Do not spray or splash water or make high-flow water spray on the Electric Pump
so as to prevent the winding insulation of the Electric Pump from being damaged by
moisture, for a damaged winding insulation may cause electrical leakage.
In winter, when anti-freezing measures are
taken for a water pump hereunder, no
flammable materials shall be used to cover the
pump or its motor for freeze-proofing, so as to
prevent any fire accident. Do not cover the
motor with any thermal insulation materials, for
such a material will result in bad ventilation and
thermal dissipation and even a fire easily.
1. When an Electric Pump involved hereunder is working, please cut off the power supply before the Electric
Pump is to be relocated or touched; no washing, swimming, or pasturing near the working face of the Electric
Pump, so as to avoid any accident.
2. During the transportation or installation of an Electric Pump involved, do not grasp the cable to lift the
Electric Pump so as to prevent the cable from any damage that may cause electrical leakage or electric shock.
3. Based on the principle of safety, repair or maintenance in any form shall be carried out after the related
water pump is turned off.
Ethyl
alcohol

Mini-type Clean-water Electric Jet Pumps (hereinafter referred to as the “Electric Pump”)
cover series of JET, SGJW, PJ, and PTB. The Electric Pump is composed of such three parts as
the motor, the water pump, and the seal. The motor is an asynchronous motor. The pump adopts
the unique structure of centrifugal-type impeller-radial guide vane-jet pipe, whose principle is that
the pressure water firstly goes through the nozzle to form vacuum and then the liquid at a low
water level is absorbed to the inlet of the pump and discharged through the pressurization by the
pump, featured by deep suction stroke, high lift, short self-priming time, and stable operation.
The Electric Pumps of the models hereunder, with advantages such as small volume, light
weight, compact structure, and easy installation, can be widely applied to lifting of water from
wells, pipe pressurization, agricultural irrigation, water supply to vegetables greenhouses, supply
of domestic water, and breeding industry.
II. Product Introduction
III. Operating Conditions
The Electric Pump shall be able to operate continuously and normally in the following
operating conditions:
1. The ambient temperature does not exceed +40℃;
2. The temperature of the medium ranges from 0 to +40°C;
3. The pH value of the medium is 6.5~8.5;
4. The mass ratio of the solid impurities contained in the medium is not higher than 0.1% and
the particle size is not more than 0.2mm；
5. The voltage and the frequency of the power supply meet the requirements in the
nameplate of the Electric Pump, relating to the nominal voltage and frequency and the scope of
the fluctuation of voltage is ±10% of the nominal value.

IV. Explosive View
Hexagon socket cap
screw
Dust cover
Water faucet
Air faucet
Pump body
O-shaped seal ring
Injection
Guide vane
Impeller
Mechanical seal
O ring
1
2
3
4
5
6
7
8
9
10
11
Pump cover
Rubber washer
Coupling
Waterproof ring
Rotor
Stator
Motor case
Foot
Deep groove ball
bearing
Waved spring
End cover
12
13
14
15
16
17
18
19
20
21
22
Fan
Hexagon bolt
Fan cover
Cross-recessed pan-headed
self-tapping screw
Terminal box cover
Capacitor
Terminal box
Rubber washer
Cable sheath
Nut of the terminal box
Cable
12
13
14
15
16
17
18
19
20
21
22

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9
8
7
16
15
14
13
12
11
10
28
19
18
17
27
26
25
24
23
22
21
20
35
34
33
32
31
30
29
JET-A
Dust cover
Hexagon bolt
Inlet
Inlet valve
Pump body
Air faucet
O ring
Injection
Guide vane
O-ring
Impeller
Mechanical seal
1
2
3
4
5
6
7
8
9
10
11
12
Water Faucet
Lifting yoke
Support
Pin
Pin roll
Coupling
Waterproof ring
Rotor
Stator
Motor Case
Cable
Foot
13
14
15
16
17
18
19
20
21
22
23
24
Cable sheath
Deep groove ball bearing
Waved spring
End cover
Fan
Fan cover
Cross-recessed pan
head screw
Terminal box cover
Capacitor
Terminal cap
Press plate for the cable
25
26
27
28
29
30
31
32
33
34
35

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15
16
17
18
19
20
21
22
23 24 25 26 27
28
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32
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34
SGJW
Pump body
Air faucet
Dust cover
O ring
O ring
Injection pipe
Common flat key
Impeller
Mechanical seal
O ring
Pump cover
Guide vane
1
2
3
4
5
6
7
8
9
10
11
12
Coupling
Stator
Insert-type spring
Wire holder
Operating capacitor
Terminal box
Nameplate
O ring
Press plate for the cable
Cross-recessed pan
head screw
Rotor
13
14
15
16
17
18
19
20
21
22
23
Deep groove ball bearing
End cover
Fan
Fan cover
Waved spring
Cable
Cable sheath
Waterproof ring
Foot
Motor case
Air relief cock
24
25
26
27
28
29
30
31
32
33
34

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10
11
12
13
14
15
16
17
18
19 2021 22
23 24
3
25
26
27
28
29
30
PTB
Hexagon socket cap
self-tapping screw
Air faucet
Pump body
Injection
O ring
Guide vane
Impeller
Mechanical seal
Coupling
Lifting yoke
1
2
3
4
5
6
7
8
9
10
Lower lid of the terminal box
Rubber washer
Power switch
Terminal box cover
Nameplate
Cable sheath
Nut of the terminal box
Capacitor
Rotor
Bearing
11
12
13
14
15
16
17
18
19
20
Waved spring
End cover
Fan
Fan cover
Key
Motor case
Stator
Front end cap
Pump cover
O ring
21
22
23
24
25
26
27
28
29
30

Indirectly-pressurized Supply of Tap Water
V. Pump Wiring Diagram
VI. Installation Diagram
Wiring of
single-phase
pump
Wiring of
three-phase
pump
Capacitor
(Yellow/green)
Subline
Secondary
winding
Main
winding
Common line
(Black/red)
Main line (white)

During installation, the complete machine shall
be fixed and the inlet and outlet pipes shall be
separately supported, whose weight shall not
be completely supported by the pump body.
Prior to installation and use, please fully
check whether the Electric Pump is
damaged during transportation or storage,
for example, whether any cable or
outgoing line or plug (if provided) is in a
perfect condition. In case of any damage,
please have a specialized person make
replacement or repair. The insulation
resistance shall be greater than 50MΩ
Pumping Water from Well and Making Pressurization Downstairs
VII. Instructions for Installation
WARNING

1. Use a steel or rubber pipe (which shall not be too soft so as to avoid becoming flat in case of absorption) to connect
the bottom valve and the inlet end of the Electric Pump. Please make sure that the inlet pipeline and its connections
are sealed and present no air leakage.
2. Connect the outlet pipe firmly to prevent water from splashing on the motor, thus causing electrical leakage of the
Electric Pump. When a rubber pipe is used, pay attention to its temperature resistance limit to ensure that the pipe will
not be deformed by heat, for such deformation might make the pipe become broken, causing water leakage.
3. After connecting the upper end of the inlet pipe and the inlet end of the Electric Pump, please make sure that the
end of the inlet pipe, where the bottom valve and the strainer lie, is submerged in water. To guarantee the reliable use
of the Electric Pump, please arrange an effective strainer which, together with the bottom valve, shall keep more than
30cm away from the water bottom, for the purpose of preventing sludge or impurities from being absorbed to the pump
chamber and hence affecting the operation of the pump.
4. Make a pipe as short as possible to reduce connections. The drawing-up height shall not exceed the suction lift.
5. During use, please pay attention to the decrease of the water level and do not let the bottom valve or the lower end
of the inlet pipe come out of water.
1. Prior to the initial use, please fill the chamber of the Electric Pump with water and then
turn on it so as to avoid dry running.
2. A self-priming pump will start only when its pump body is filled with water and it is
unnecessary to fill the inlet pipe with water; in case of a non-self-priming pump, both its
body and inlet pipe shall be filled with water and air shall be drained completely.
3. In an area with high sand content, it is recommended that a Y-shaped filter should be
installed at the inlet pipe to prevent sand from entering the pump chamber and hence
causing a worn or blocked impeller.
Y-shaped filter
NOTICE
Prior to the use of the Electric Pump, please carry out a test run of which the duration shall not exceed 10s,
as long-time dry running will damage the mechanical seal. In case of a three-phase pump, please check
whether the rotational direction is the same as the rotation mark. When finding the reverse rotation of the
Electric Pump, immediately cut off the power supply and exchange any two phases of the three-phase pump
Check valve
Lift (H)
Suction stroke (Hs)
NOTICE

1. Install the Electric Pump as a dry and well-ventilated
place where repair and inspection can be carried out
easily. To install the Electric Pump at a narrow place,
please follow the following diagram and keep the fan
cover more than 25cm away from the wall, in case of
heat dissipation.。
2. Arrange a drainage ditch around the Electric Pump
to form natural drainage and prevent water leakage
and loss during the usage, repair, or replacement of
the Electric Pump (especially at a basement, kitchen,
or stairway).
To equip a three-phase electric pump with an overload
protection device, a suitable overload protection device
shall be selected on the basis of current or power.
PUMP
A B C
OUTPUT
A B C
INTPUT
FUSE
AC380V
Connected to the sewer pipe
≥25cm
≥25cm ≥25cm
To adjust the pressure switch, open the housing of the
pressure switch by using a slot-type screwdriver or
wrench to rotate the pressure adjusting screw toward “+”.
A non-specialized person shall adjust the switch
under the condition of power-off and a specialized
person shall take safety protection measures in case
of operation under power-on.
WARNING
With the valve closed at the outlet, the Electric Pump
shall not operate for over 5 minutes. When the Electric
Pump operates with no water flow change inside the
pump body, it shall lead to the rise of the temperature
and the pressure of the liquid in the pump body, and
may cause an electrical leakage or damage the pump
or pipeline
OFF
NOTICE
The packing materials removed after installation
and use shall be disposed in accordance with
the concerned local law.
Foam
If the user wants to make the Electric
Pump do automatic control, a proper
pressure control device shall be
arranged on the outlet pipe only.
To add a wire for the plug or replace the wire, please
use a wire whose specifications are the same or higher
than those of the original wire and pay attention to
making firm connections, water-proofing and insulation.
NOTICE

1. Regularly inspect the insulation resistance between the enclosure and the winding
of the Electric Pump, which shall be no less than 5MΩ when the operating temperature
is nearly achieved, or otherwise usage shall not be allowed until the corresponding
measures are taken and the relevant requirements are met.
2. Prior to any repair or maintenance operation, please cut off the power supply and
make sure that the motor will not be turned on for operation due to a casual operation.
4
6
5
4
6
5
WARNING
1. When the ambient temperature is lower than 4℃,
please completely drain the water accumulated in the
pump chamber to avoid frost-cracking the pump body.
Before starting the Electric Pump again, inspect whether
the pump spindle rotates flexibly and fill the pump
chamber with water.
2. In the event that the Electric Pump has not been used
for a long time, please disassemble the piping, drain the
water accumulated in the pump, clean the main parts and
components, carry out rust-proof treatment, and keep it
properly at a dry and well-ventilated place.
NOTICE
Air tight test: After the pump is disassembled for the
repair or replacement of any seal, the bearers and the
complete pump shall go through water (air) pressure
tests on the basis of the maximum operating pressure
and such a test shall last for 3 minutes and there shall
be no phenomenon of leakage or sweating.
After the 2000-hour normal usage of the Electric Pump, the Electric Pump shall be delivered to a qualified
repair station for maintenance and repair as per the steps below: dismantle the pump and inspect various
quick-wear parts such as the bearing, mechanical seal, impeller, guide vane, check valve, bottom valve
and jet pipe. Please immediately replace those damaged ones
Bearing,
mechanical seal,
impeller,
check valve,
bottom valve,
jet pipe
• The recycling of the Electric Pump shall comply with the local laws and regulations concerning
recycling.
Impeller
Mechanical seal
BearingGuide vane
Jet pipe
Check valve
Drain plug
VIII. Maintenance
NOTICE

IX. Common Faults and Troubleshooting
Fault Cause Remedy
The motor
does not
revolve
1. The cable of the Electric Pump is
contacted badly or broken.
2. The impeller is blocked.
3. The stator winding is burnt.
4. The voltage is low.
5. The voltage of the cable drops too
much.
6. The capacitor is damaged.
1. Inspect the terminal or replace the cable.
2. Correct the blocked part or remove sundries.
3. Re-insert the winding or carry out overhaul.
4. Adjust the supply voltage to a value within the
range of 0.9-1.1 times the rating.
5. Thicken the cable as required.
6. Replace the damaged capacitor with another
one of the same capacity.
The motor
operates but
the water
pump has no
water flow
1. There is air leakage at the inlet pipe.
2. The bottom valve or check valve is not
opened or is blocked.
3. Air gets in through the seal.
4. The water level is lower than the
suction lift limit of the Electric Pump.
5. The water pump is not filled with water.
6. The impeller is damaged.
7. There is a high pipe resistance and an
ill-suited pump model
1. Check whether the sealing at the inlet pipe or
any connection is perfect and ensure that the
sealing is reliable.
2. Inspect the flexibility of the bottom valve and
the check valve and remove obstacles.
3. Adjust or replace the seal.
4. Check the water level and adjust the
installation height of the Electric Pump.
5. Again fill the pump body with water.
6. Replace the impeller.
7. Reduce the bends of the pipeline and re-select
a model.
The flow is
insufficient
1. The pipeline is too long or bent too
much, or the lift is too high.
2. Lack of water resource and the bottom
valve and check valve are blocked.
3. The impeller is damaged
4. The nozzle, jet pipe or impeller is
blocked.
5. The motor revolves reversely.
6.The water level is low and close to the
suction lift limit of the Electric Pump.
1. Shorten the pipeline, use the Electric Pump
within its range of lift or make the bending of the
pipeline gentle.
2. Check the source of water; Clear away
sundries.
3. Replace the impeller.
4. Clear away sundries of nozzle, jet pipe, and
impeller
5. Exchange any two phases of the three-phase
power supply.
6. Reduce the installation height of the Electric
Pump.
The Electric
Pump stops
running
suddenly
under normal
operation
1. The switch is disconnected or the fuse
is burnt.
2. The impeller is blocked.
3. The stator winding is burnt.
4. The motor is overloaded and the
thermal protector trips.
1. Inspect whether the lift or supply voltage used
complies with the relevant provisions and make
an adjustment accordingly.
2. Clear away sundries.
3. Re-insert the winding or carry out overhaul.
4. Make automatic resetting of the protector after
the temperature declines, inspect the cause of
overload and eliminate the relevant errors.
The stator
winding is
burnt.
1. The supply voltage is too low.
2. Water gets into the motor, which leads
to coil short circuit
3. The impeller is blocked.
4. The Electric Pump starts frequently.
5. The Electric Pump makes overload
operation.
Do troubleshooting, disassemble the winding and
re-insert the winding as per the concerned
technical requirements as well as immerse and
dry the insulating varnish or deliver the winding
to the repair station for repair.

Fault Cause Remedy
Big noise of
the Electric
Pump
1. The impeller and the pump body rub
each other or there are sundries in the
pump body.
2. The bearing is damaged.
3. Cavitation occurs to the water pump.
1. Replace the impeller and the guide vane or
remove the sundries in the pump body.
2. Replace the bearing.
3. Adjust the outlet valve or reduce the self-
priming height.
Notes:
1. All the diagrams in this Operating Manual are only for reference and the Electric Pump you
purchased and its accessories may be different from those indicated in this Operating Manual.
Your understanding is really appreciated.
2. The products involved hereinbefore are subject to continuous improvements and
changes(including its appearance and color) without further notice, please in kind prevail.