SHIMGE WQ(D) Series User manual

Models:WQ(D)、WQ(D)-L1、WQ(D)-L2、WQK、WVSD、DWE、
WQDS、WQ(D)AS-CB、WQ-QG、WQ(D)-4P
Vortex Type Micro Clean Water Pump
SERVICE MANUAL
SUBMERSIBLE ELECTRIC SEWAGE PUMP

Contents
I. Product Introduction
II. Operating Conditions
III. Structural Diagrams
IV. Installation & Use and Matters Needing Attention
V. Maintenance
VI. Troubleshooting

Thank you very much for choosing our products, and please read over the operating manual
and keep it properly prior to installation and use.
Warning
I. Product Introduction
Submersible electric sewage pumps (hereinafter referred to as the “electric pumps”)
include WQ(D), WQ(D)-L1, WQ(D)-L2, WQK, WVSD, DWE, WQDS, WQ(D)AS-CB, WQ-
QG, WQ(D)-4P electric pumps. The electric pump is composed of water pump and motor;
located in the upper part of electric pump, motor is single-phase or three-phase
asynchronous motor; located in the lower part of electric pump, water pump is of channel
impeller or vortex impeller-volute structure; mechanical seal and framework oil seal are
adopted between water pump and motor as seal, and “O”-shaped oil resistant rubber seal
rings are adopted at fixed rabbet seals as static seal to ensure the reliability of electric
pump.
This series of electric pumps are widely used in such fields as industry, agriculture,
mining, building construction, and municipal administration and environmental protection,
and pump liquids can contain fiber, scrap paper and other solid particles or soft solids, e.g.
muddy water, grey water, domestic sewage, wastewater, feces and urine, etc., which are
ideal hydraulic equipment for agricultural drainage and irrigation, river/pool dredging, and
field construction, but not for applications with explosion-proof requirements.
II. Operating Conditions
Electric pump shall be able to operate continuously and normally in the following
operating conditions:
1. The temperature of medium is no higher than +40°C;
2. The pH value of medium is 4~10;
3. The maximum density of medium is 1.2*103kg/m3;
4. The immersion depth is no less than 0.5m and no more than 5m.
• The Electric Pump must be grounded reliably before use, and shall be
equipped with an electrical leakage protection device;
• It's strictly prohibited to touch the Electric Pump during operation;
• It's strictly prohibited to run the Electric Pump without water;
• For three phase-motors with integrated thermal protector shut down due to
overload or overheating, it is NOT allowed to re-connect the power until
motor cooling for more than 10 minutes.

1. Hexagon bolt
2. Cable clip
3. Outgoing coil
4. Handle
5. Cable adapter sleeve
6. Slotted cheese-head screw
7. O-ring
8. Threaded cable gland
9. Cable packing washer
10. Spring washer
11. Top cover
12. Capacitor
13. O-ring
14. Cross recessed small
pan head screw
15. Wiring terminal
16. Upper bearing block
17. Wave spring
18. Deep groove ball bearing
19. Stator core with winding
20. Enclosure
21. Rotor
22. Key
23. Deep groove ball bearing
24. O-ring
25. Oil chamber
26. O-ring
27. Slotted cheese-head screw
28. Hexagon bolt
29. Outlet joint
30. Mechanical seal
31. Rubber washer
32. O-ring
33. Pump casing
34. Framework oil seal
35. Impeller
36. Flat washer
37. Spring washer
38. I-type hexagon nut
39. Base
40. Spring washer
41. Hexagon bolt
III. Structural Diagrams
WQ(D) 0.55-1.1kW

1. Cable adapter sleeve
2. Lifting bolt
3. Slotted cheese-head screw
4. O-ring
5. Hexagon bolt
6. Top cover
7. O-ring
8. Cross recessed small pan
head screw
9. Wiring terminal
10. Upper bearing block
11. Wave spring
12. Deep groove ball bearing
13. Stator core with winding
14. Enclosure
15. Rotor
16. Key
17. Shoulder spring
18. Deep groove ball bearing
19. O-ring
20. Oil chamber
21. Spring washer
22. Hexagon bolt
23. Deep groove ball bearing
24. Mechanical seal
25. Retainer ring for mechanical
seal
26. Circlip for shaft
27. O-ring
28. Oil chamber cover
29. Cross recessed
countersunk
head screw
30. Mechanical seal
31. Retainer ring for mechanical
seal
32. Circlip for shaft
33. Impeller
34. Large washer
35. Hexagon bolt
36. Outlet joint
37. Rubber washer
38. Pump casing
39. Base
WQ 1.5-7.5kW

WQ 11-22kW
1. Hexagon socket head cap
screw
2. Cable pressing disc
3. Cable pressing plate
4. Cable adapter sleeve
5. Lifting bolt
6. Slotted cheese-head screw
7. O-ring
8. Hexagon bolt
9. Spring washer
10. Top cover
11. Cable packing washer
12. Wiring block
13. O-ring
14. Cross recessed small pan
head screw
15. Upper bearing block
16. O-ring
17. Stator core with winding
18. Enclosure
19. Rotor
20. Key
21. Hexagon bolt
22. Oil chamber
23. Mechanical seal
24. Oil chamber cover
25. Mechanical seal
26. Impeller
27. Pump casing
28. I-type hexagon nut
29. Rubber washer
30. Flat washer
31. Outlet joint
32. Double end stud
33. I-type hexagon nut
34. Seal ring
35. Base

WQ(D)-L1 0.55-1.5kW
1. Cable adapter sleeve
2. Hexagon socket head cap
screw
3. Flat washer
4. Handle
5. Hexagon bolt
6. Spring washer
7. Top cover
8. O-ring
9. Slotted cheese-head screw
10. Cross recessed small pan
head screw
11. Thermal protector
12. Wiring terminal
13. Lead wire sheath
14. Capacitor
15. O-ring
16. Upper bearing block
17. O-ring
18. Wave spring
19. Deep groove ball bearing
20. Enclosure
21. Stator core with winding
22. Rotor
23. Key
24. Deep groove ball bearing
25. O-ring
26. Outlet joint
27. Rubber washer
28. Pump casing
29. Hexagon socket head cap
screw
30. Mechanical seal
31. O-ring
32. Slotted cheese-head screw
33. O-ring
34. Oil chamber cover
35. Framework oil seal
36. Hexagon socket head cap
screw
37. Impeller
38. Flat washer
39. I-type hexagon nut
40. Base
41. Spring washer
42. Hexagon bolt

WQ-L1 2.2-7.5kW
1. Cable adapter sleeve
2. Lifting bolt
3. Hexagon bolt
4. Spring washer
5. Top cover
6. O-ring
7. Slotted cheese-head screw
8. Cross recessed small pan
head screw
9. Wiring terminal
10. O-ring
11. Upper bearing block
12. O-ring
13. Wave spring
14. Deep groove ball bearing
15. Stator core with winding
16. Enclosure
17. Rotor
18. Key
19. Hexagon bolt
20. Spring washer
21. Deep groove ball bearing
22. O-ring
23. Oil chamber
24. Hexagon socket head cap
screw
25. O-ring
26. Slotted cheese-head screw
27. Deep groove ball bearing
28. Mechanical seal (single
end face mechanical seal
for 2.2kW-5.5kW)
29. O-ring
30. Oil chamber cover
31. Mechanical seal
32. Retaining ring for
mechanical seal
33. Circlip for shaft
34. Impeller
35. Flat washer
36. Spring washer
37. I-type hexagon nut
38. O-ring
39. Outlet joint
40. Pump casing
41. Rubber washer
42. Spring washer
43. Hexagon bolt
44. Base
45. Spring washer
46. Hexagon bolt

WQ(D)-L2
1. Cable adapter sleeve
2. Lifting bolt
3. Hexagon bolt
4. Spring washer
5. Slotted cheese-head screw
6. O-ring
7. Top cover
8. Cross recessed small pan head screw
9. Wiring terminal
10. O-ring
11. Upper bearing block
12. O-ring
13. Wave spring
14. Deep groove ball bearing
15. Stator core with winding
16. Enclosure
17. Rotor
18. Key
19. Hexagon bolt
20. Spring washer
21. Deep groove ball bearing
22. O-ring
23. Oil chamber
24. Hexagon socket head cap screw
25. O-ring
26. Slotted cheese-head screw
27. Deep groove ball bearing
28. Mechanical seal
29. O-ring
30. Oil chamber cover
31. Mechanical seal (framework oil seal
for 0.55kW ~ 1.5kW)
32. Retaining ring for mechanical seal
33. Circlip for shaft
34. Impeller
35. Flat washer
36. Spring washer
37. I-type hexagon nut
38. O-ring
39. Slotted cheese-head screw
40. O-ring
41. Pump casing
42. Base
43. Spring washer
44. Hexagon bolt

WQK
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1. Cable adapter sleeve
2. Lifting bolt
3. Rivet for nameplate
4. Hexagon bolt – full thread
5. Slotted cheese-head screw
6. O-ring
7. Hexagon bolt – full thread
8. Nameplate
9. Spring washer
10. Top cover
11. O-ring
12. Closed wiring terminal
13. Spring washer
14. Cross recessed small pan
head screw
15. Deep groove ball bearing
16. Stator core with winding
17. Enclosure
18. Rotor
19. Flat key
20. O-ring
21. O-ring
22. Cross recessed small pan
head screw
23. Spring washer
24. Bearing gland
25. Deep groove ball bearing
26. Circlip for shaft
27. Hexagon bolt – full thread
28. Spring washer
29. Oil chamber
30. O-ring
31. Slotted cheese-head screw
32. Spring washer
33. Hexagon socket head cap
screw
34. Mechanical seal
35. O-ring
36. Pump casing
37. Framework oil seal
38. Impeller
39. Flat washer
40. Spring washer
41. I-type hexagon nut
42. Base
43. Spring washer
44. Hexagon bolt – full thread

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WVSD
1. Hexagon socket head cap screw
2. Float switch adapter sleeve
3. Cable adapter sleeve
4. Handle
5. Slotted cheese-head screw
6. O-ring
7. Hexagon bolt – full thread
8. Spring washer
9. Cable clip
10. Hexagon cap nut
11. Spring washer
12. Top cover
13. Capacitor
14. O-ring
15. Cross recessed small pan head
screw
16. Spring washer
17. Closed wiring terminal
18. Upper bearing block
19. O-ring
20. O-ring
21. Insulation paper
22. Wave spring
23. Deep groove ball bearing
24. Stator core with winding
25. Nameplate
26. Double end stud
27. Enclosure
28. Insulation paper
29. Rotor
30. Flat key
31. Deep groove ball bearing
32. O-ring
33. O-ring
34. Oil chamber
35. Mechanical seal
36. O-ring
37. O-ring
38. Oil chamber cover
39. Framework oil seal
40. Slotted cheese-head screw
41. Spring washer
42. Hexagon bolt – full thread
43. Impeller
44. Flat washer
45. Spring washer
46. Hexagon cap nut
47. Outlet joint
48. I-type hexagon nut
49. Spring washer
50. Rubber washer
51. Pump casing
52. Base
53. Spring washer
54. Hexagon bolt – full thread

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WQDS
1. Cable adapter sleeve
2. Hexagon bolt – full thread
3. Handle
4. Hexagon socket head cap screw
5. Spring washer
6. Spring washer
7. Cross recessed small pan head screw
8. Spring washer
9. Closed wiring terminal
10. Capacitor
11. Deep groove ball bearing
12. Stator core with winding
13. Enclosure
14. Nameplate
15. Rotor
16. Hexagon bolt – full thread
17. Spring washer
18. O-ring
19. Slotted cheese-head screw
20. Mechanical seal
21. O-ring
22. Oil chamber cover
23. Framework oil seal
24. Flat washer
25. Impeller
26. Spring washer
27. I-type hexagon nut
28. Pump casing
29. Rubber gasket
30. Flange plate
31. Hexagon bolt – full thread
32. Spring washer
33. O-ring
34. Outlet joint
35. Oil chamber
36. Spring washer
37. Hexagon bolt – full thread
38. O-ring
39. Deep groove ball bearing
40. Shoulder ring
41. Bearing gland
42. Flat key
43. Stud sleeve
44. Double end stud
45. Spring washer
46. I-type hexagon nut
47. Upper bearing block
48. O-ring
49. Rubber washer
50. Top cover
51. Hexagon socket head cap screw
52. O-ring
53. Slotted cheese-head screw

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WQ(D)AS-CB
1. Cable
2. Control box
3. Hexagon bolt – full thread
4. Cable adapter sleeve
5. Ring handle
6. Slotted cheese-head screw
7. O-ring
8. Hexagon bolt – full thread
9. Spring washer
10. Rivet for nameplate
11. Nameplate
12. Top cover
13. Closed wiring terminal
14. Spring washer
15. Cross recessed small pan head
screw
16. O-ring
17. Deep groove ball bearing
18. Stator core with winding
19. Enclosure
20. Rotor
21. Flat key
22. O-ring
23. O-ring
24. Circlip for shaft
25. Deep groove ball bearing
26. Deep groove ball bearing
27. Oil chamber
28. Mechanical seal
29. Hexagon socket head cap screw
30. Spring washer
31. Outlet joint
32. Rubber washer
33. O-ring
34. Slotted cheese-head screw
35. Hexagon bolt – full thread
36. Spring washer
37. I-type hexagon nut
38. Pump casing
39. Framework oil seal
40. Spring washer
41. Flat washer
42. I-type hexagon nut
43. Impeller
44. Pump cover
45. Spring washer
46. Hexagon bolt – full thread
47. Base

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DWE
1. Lifting bolt
2. Spring washer
3. Slotted cheese-head screw
4. O-ring
5. Top cover
6. Hexagon bolt – full thread
7. Capacitor clamp
8. O-ring
9. Upper bearing block
10. Deep groove ball bearing
11. Rubber gasket
12. Stator core with winding
13. Enclosure
14. Mechanical seal
15. Deep groove ball bearing
16. Oil chamber
17. Oil chamber cover
18. Framework oil seal
19. Impeller
20. O-ring
21. Pump casing
22. Air vent screw
23. Cap nut
24. Spring washer
25. Flat washer
26. Hexagon bolt – full thread
27. Spring washer
28. O-ring
29. Slotted cheese-head screw
30. Flat key
31. Rotor
32. Hexagon bolt – full thread
33. Lead wire sheath
34. Capacitor
35. Cross recessed small pan head screw
36. Cross recessed small pan head screw
37. Cable clip
38. Nameplate
39. Cable adapter sleeve
40. Hexagon bolt – full thread

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WQ-QG
1. Lifting bolt
2. Rivet for nameplate
3. Nameplate
4. Cable
5. Hexagon socket head cap screw
6. Spring washer
7. Top cover
8. Hexagon socket head cap screw
9. O-ring
10. Upper bearing block
11. Stator core with winding
12. Enclosure
13. Oil chamber
14. O-ring
15. Slotted cheese-head screw
16. Hexagon bolt – full thread
17. Mechanical seal
18. Oil chamber cover
19. Hexagon socket head cap screw
20. Impeller
21. Pump casing
22. Cutting disk
23. Base
24. Base plate
25. Cross recessed flange screw
(combination screw)
26. Rubber washer
27. Outlet joint
28. Air vent screw
29. Ordinary flat key
30. Deep groove ball bearing
31. Rotor
32. Deep groove ball bearing

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50WQD-4P
1. Cable
2. Cross recessed small pan head screw
3. Handle
4. Hexagon socket head cap screw
5. Flat washer
6. Slotted cheese-head screw
7. O-ring
8. Cable clip
9. Top cover
10. Hexagon socket head cap screw
11. Spring washer
12. Cross recessed small pan head screw
13. O-ring
14. Capacitor
15. Hexagon socket head cap screw
16. Spring washer
17. Upper bearing block
18. Bearing
19. Stator core with winding
20. Enclosure
21. Hexagon bolt (full thread)
22. Spring washer
23. Split washer
24. Rotor
25. Key
26. Shoulder ring
27. Circlip for hole
28. Bearing
29. Circlip for shaft
30. O-ring
31. Oil chamber
32. Spring washer
33. Hexagon socket head cap screw
34. Mechanical seal
35. Retaining ring for mechanical seal
36. Circlip for shaft
37. O-ring
38. Oil chamber cover
39. Spring washer
40. Hexagon socket head cap screw
41. O-ring
42. Slotted cheese-head screw
43. Cross recessed pan head screw
44. Mechanical seal
45. Retaining ring for mechanical seal
46. Circlip for shaft
47. Impeller
48. Flat washer
49. Spring washer
50. I-type hexagon nut
51. Pump casing

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80WQ-4P
1. Cable
2. Lifting bolt
3. Slotted cheese-head screw
4. O-ring
5. Cable clip
6. Top cover
7. Hexagon socket head cap
screw
8. Spring washer
9. Cross recessed small pan
head screw
10. O-ring
11. Bearing
12. Shoulder ring
13. Stator core with winding
14. Enclosure
15. Hexagon bolt (full thread)
16. Spring washer
17. Rotor
18. Key
19. Circlip for hole
20. Bearing
21. Circlip for shaft
22. O-ring
23. Oil chamber
24. Spring washer
25. Hexagon socket head cap
screw
26. Mechanical seal
27. Retaining ring for
mechanical seal
28. Circlip for shaft
29. O-ring
30. Oil chamber cover
31. Spring washer
32. Hexagon socket head cap
screw
33. O-ring
34. Slotted cheese-head screw
35. Mechanical seal
36. Retaining ring for
mechanical seal
37. Circlip for shaft
38. Impeller
39. Flat washer
40. Spring washer
41. I-type hexagon nut
42. Flange plate
43. Hexagon bolt (full thread)
44. Rubber gasket
45. Pump casing

IV. Installation & Use and Matters Needing Attention
1. Electric pumps shall be comprehensively checked for damage during transportation
and storage prior to installation and use, e.g. whether cable is in good condition, and in
case of any damage, replacement or repair shall be made by professionals prior to use.
2. Before operation, electric pumps shall be checked for whether the insulation
resistance meets the requirements of relevant standards, and whether the cold insulation
resistance is greater than 50MΩ (megohm).
Check whether the cold insulation
resistance is greater than 50MΩ (megohm)
3. At wiring, electric pumps should be correctly installed with electrical leakage
protector, and a yellow-green wire attached with earthing mark in the outgoing cable of
electric pump shall be earthed reliably. For electric pumps provided with plug at delivery,
the matched patch board must be reliably earthed. Matched overload protection devices
shall be selected by current or power for all electric pumps. The wiring of electric pumps
can be carried out according to the figure below.
Input Output
Fuse
AC 380V
Yellow-green wire
Pump
Wiring gram of protection device
4. Electric pumps shall be subjected to test run for no more than 10s before immersion
into water, and it shall be checked whether the direction of rotation of electric pump is
consistent with the indication arrow; if it's found a three-phase electric pump reserves, any
two of the three phases should be exchanged with each other.

After powered on, the
wind power at outlet is
very large: The direction
of rotation is correct
After powered on, the
wind power at outlet is
very small and even
there is no wind:
Electric pump reverses
After powered on, it's
strictly prohibited to touch
electric pump with hand
5. At the connection of deliver pipe matching with outlet joint (the specification of
delivery pipe can be selected according to Table 1), flexible delivery pipe can be tightened
with iron wire or clamp, steel delivery pipe can be reliably connected with screwed joint or
welded flange plate, and a rope should be reeved through the handle or lift ring for lifting of
electric pump in the water.
Tighten flexible delivery pipe
with iron wire or clamp
6. It's strictly prohibited to strike or roll over cable, nor shall it be used as lifting rope;
during the operation of electric pump, cable shall not be pulled at will to avoid electric shock
accidents due to damage of cable.
The handle shall be tied with rope
with enough strength prior to
putting electric pump into the water
Cable shall not be pulled at will
or used as lifting rope during
operation of electric pump

＞0.5m
7. When electric pump is immersed in the water, the depth shall not exceed 5m, and it
shall be more than 0.5m from the water bottom. Electric pump shall not immerse into mud,
and the impeller shall be prevented from being blocked or jammed by water plants or
debris, resulting in that electric pump cannot work normally; the fall of water level should be
checked frequently during operation so as not to let electric pump work out of water
surface.
8. When electric pump is running, the safety warning sign of “Shock hazard, no man or
animal shall enter” shall be arranged at the work site to avoid accidents.
The immersion
depth is no more
than 5m
Electric pump shall
not be out of water
surface
Electric pump shall not be
immersed in mud to prevent
impeller from being blocked
or jammed by water plants
9. For single-phase electric pumps with built-in automatic reset type thermal protector,
after the protector acts, it can reset automatically when the temperature rise of motor
lowers to a certain value, and in case of frequent action of protection, the power shall be cut
off for troubleshooting prior to further use.
For three-phase electric pumps with power-off reset type thermal protector, after the
protector acts, the power must be cut off for 10min, and then the electric pump can run
normally; in case of frequent action of protection, the power shall be cut off for
troubleshooting prior to further use.
Shock hazard, no
man or animal
shall enter