Grundfos MS6000 Service Instructions Manual
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Grundfos MS6000 Service Instructions Manual

Submersible motors
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GRUNDFOS INSTRUCTIONS
MS6000
Submersible motors
Service instructions

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Summary of Contents for Grundfos MS6000

  • Page 1 GRUNDFOS INSTRUCTIONS MS6000 Submersible motors Service instructions...

  • Page 3: Table Of Contents

    Service factor Position numbers of motor parts (digits) refer to section Model (C = third generation) 13. Exploded drawing of MS6000 and position numbers of 2.2 Frequency converter operation service tools (letters) refer to section 4. Service tools. If the motor has been connected to a frequency converter, the 1.2 Before dismantling...

  • Page 4: Product Number Key

    2.3 Product number key Example Motor code 78: MS6000 Voltage code Starting Voltage range Code 50 Hz 60 Hz method 3 x 220-230 V 3 x 380-400-415 V 3 x 440-460-480 V 3 x 380-400-415 V 3 x 440-460-480 V...

  • Page 5: Type Key

    2.4 Type key Description MS6000 3 x 400/50 460/60 18.5 kW Motor type Material type = EN 1.4301 = EN 1.4539 Rubber = NBR = FKM Shaft seal = Ceramic/carbon BXPFF/NBR = SiC/SiC Q1Q1VFF/FKM = SiC/SiC Q1Q1PFF/NBR Radial bearings = Ceramic/hard metal...

  • Page 6: Tightening Torques And Lubricants

    3. Tightening torques and lubricants Dimensions Torque Pos. Designation Quantity Lubricant [mm] [Nm] Hexagon head screw 4 (8*) 1/2"-20 UNF-2A x 32 70 ± 7 Nm Screw with nylon washer M5 x 20 3.5 ± 0.5 Nm Rocol Sapphire O-ring Ø65 x 2.5 Aqua-Sil Hexagon socket head cap screw...

  • Page 7: Standard Tools

    4.1 Standard tools Pos. Description For pos. Part number Screwdrivers 32, 49 Torx 20 screwdriver 22a, 50, 221 Torx 25 screwdriver 45a, 46, 48, Open-end spanner 17 mm Open-end spanner 19 mm Tee key 8mm 00SV0051 Hexagon head driver 8mm 00SV0298 Plastic mallet Slide gauge...

  • Page 8: Dismantling Of Ms6000

    7. Always replace with wear kits. See the recommended kits and spare parts in the Grundfos Service Kit Catalogue. 14. Press down the shaft adjusting unit, pos. 45, against the thrust bearing to relieve the stress on the retainer spring, pos. 49.

  • Page 9: Assembly Of Ms6000

    7. Assembly of MS6000 Assemble the motor when the parts have been cleaned and checked, and the defective parts have been replaced with new ones. 1. Place the stator housing, pos1, vertical in the jaws, pos. L, and tighten. 2. Fit the aligning bracket, pos. T, over the motor head, using two of the threaded holes and the belonging screws, pos 22.
  • Page 10 Note: Fit the last screw at the cable plug with the motor cable. 41. Insert the motor cable, pos. 220, into the cable plug. Note: For proper sealing, Grundfos always recommends that you use a new motor cable 42. Tighten the motor cable with the screws, pos. 220a, and the last screw, pos.

  • Page 11: Dismantling Of Ms6000F

    Always replace with wear kits. See the recommended kits and the clamping flange, pos. 7. spare parts in the Grundfos Service Kit Catalogue. 16. Press down the shaft adjusting unit, pos. 45, against the thrust bearing to relieve the stress on the retainer spring, pos. 49.

  • Page 12: Assembly Of Ms6000F

    9. Assembly of MS6000F Assemble the motor when the parts have been cleaned and checked, and the defective parts have been replaced with new ones. 1. Place the stator housing, pos. 1, vertical in the jaws, pos. L, and tighten. 2.
  • Page 13 N. See section 3. Tightening torques and lubricants. 44. Insert the motor cable, pos. 220, into the cable plug. Note: For proper sealing, Grundfos always recommends that you use a new motor cable. Fig. 17 Adjusting of shaft height 45.

  • Page 14: Filling Procedure With A Syringe

    10. Filling procedure with a syringe For a correct filling, evacuate the air inside the motor and replace it with motor liquid. 1. Incline the motor approx. 30°, so that the filling hole is at the highest point of the motor. 2.

  • Page 15: Maintenance And Service

    If Grundfos is requested to service a contaminated motor, Grundfos must be contacted with details about the pumped liquid, etc. before the motor is returned for service. Otherwise Grundfos can refuse to accept the motor for service.

  • Page 16: Checking The Motor And Cable

    Measure the voltage between the When the motor is loaded, the voltage should be within the phases by means of a voltmeter. required voltage quality for Grundfos MS submersible Measure on the terminals where motors which,measured at the motor terminals,is - 10 %/+...

  • Page 17: Insulation Resistance

    1.1 Insulation resistance The insulation resistance must be measured Note in accordance with local regulations. The table shows suggested values of insulation resistance and the test voltage in relation to the rated voltage of the motor. Rated voltage: ≤ 500 [V] >...

  • Page 18: Winding Resistances

    2. Winding resistances 2.1 MS6000T40 Output power Winding resistance Voltage Between two phases [Ω] Across one phase [Ω] [kW] [hp] 0.760 1.14 0.560 0.840 0.445 0.670 0.345 0.520 0.315 0.470 3 x 220-230 V, 50 Hz 0.255 0.380 18.5 0.208 0.310 0.166 0.248...

  • Page 19: Ms6000T60

    Output power Winding resistance Voltage Between two phases [Ω] Across one phase [Ω] [kW] [hp] 2.46 3.70 1.84 2.75 1.48 2.22 1.18 1.76 1.00 1.50 3 x 440-460-480 V, 60 Hz 0.815 1.22 18.5 0.645 0.970 0.565 0.850 0.465 0.695 0.385 0.575 1.86...
  • Page 20 Output power Winding resistance Voltage Between two phases [Ω] Across one phase [Ω] [kW] [hp] 2.86 2.34 1.94 1.64 3 x 500-525 V, 50 Hz 1.30 1.02 18.5 0.840 0.755 0.485 0.380 0.310 0.380 3 x 200 V, 50Hz 0.310 0.255 18.5 0.213...

  • Page 21: Resistance Values For Cables

    2.3 Resistance values for cables The resistance in the power supply cable depends on the cable diameter. For further information see the cable dimensioning tool included on the USB-stick delivered with the pump. 2.4 Cable connection Flat cable Single leads Pos.

  • Page 22: Exploded Drawing Of Ms6000

    13. Exploded drawing of MS6000 Fig. 20 Exploded view of MS6000 motor...

  • Page 23: Exploded Drawing Of Ms6000F

    14. Exploded drawing of MS6000F Fig. 21 Exploded view of MS6000F motor...
  • Page 24 GRUNDFOS Hellas A.E.B.E. Минске Turkey 20th km. Athinon-Markopoulou Av. New Zealand 220125, Минск GRUNDFOS POMPA San. ve Tic. Ltd. Sti. P.O. Box 71 ул. Шафарнянская, 11, оф. 56 GRUNDFOS Pumps NZ Ltd. Gebze Organize Sanayi Bölgesi GR-19002 Peania Тел.: +7 (375 17) 286 39 72, 286 39 73...
  • Page 25 1214 ECM: - www.grundfos.com...

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