Grundfos BMS Series Istruzioni operative

BMS

BMS hs, BMS hp, BMST, BMSX

Service instructions

GRUNDFOS INSTRUCTIONS

www.motralec.com / [email protected] / 01.39.97.65.10

English (GB)

English (GB) Service instructions

Original service instructions.

CONTENTS

Page

1. Symbols used in this document

2. Identification

This section shows the type key, the nameplate and the codes

that can appear in the variant code.

2.1 Nameplate

Fig. 1 Nameplate

1. Symbols used in this document 2

2. Identification 2

2.1 Nameplate 2

2.2 Type key 3

3. Torques 3

4. Service tools 4

4.1 Service tools 4

4.2 Standard tools 4

4.3 Torque tools 4

4.4 Additional instructions 4

5. Before dismantling 5

5.1 Dismantling pump and motor 5

5.2 Dismantling the thrust bearing 5

5.3 Dismantling the thrust bearing and shaft seal 6

5.4 Assembling the thrust bearing 7

5.5 Dismantling the rotating shaft seal part 8

5.6 Dismantling the pump and sleeve 9

5.7 Assembling the pump 10

5.8 Aligning pump and motor 11

6. Software 13

6.1 Grundfos BMS hs 13

6.2 Grundfos BMS hp 13

7. Pressure exchanger 14

8. Fault finding 14

8.1 BMS hs and BMST 14

8.2 BMS hp 15

8.3 Pressure exchanger 16

9. Checking the motor and cable 17

10. Drawings 18

11. Data report, POWERDRIVE 20

Warning

Prior to service, read these service instructions

carefully. Installation and service must comply

with local regulations and accepted codes of

good practice.

Observe the safety instructions in the installation

and operating instructions for the product.

Warning

If these safety instructions are not observed,

it may result in personal injury.

Caution

If these safety instructions are not observed, it

may result in malfunction or damage to the

equipment.

Note

Notes or instructions that make the job easier

and ensure safe operation.

TM05 9242 3613

Pos. Description

1 Type designation

Model designation:

• generation

• product number

• production code (yyww-x).

3 Rated flow rate

4 Rated head

5 Rated speed

6 Pressure gauge (fresh-water pump discharge)

7 Minimum inlet pressure and maximum outlet pressure

8 Maximum ambient temperature

9 Net weight of booster module

10 Minimum efficiency index

11 Country of origin

12 CE mark

13 TR mark

N/A

11 12 13

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English (GB)

2.2 Type key

3. Torques

This section shows the screws and nuts that must be tightened to

a certain torque and the lubricants to be used.

Example BMS30-26hs-E-C-P-A

Pump

BMS

BMSX

BMST

include X-changer and

BM hp pump

include BMT pump

Rated pump flow rate [m3/h]

Number of stages

Type

High-pressure pump with high-speed

High inlet pressure

Motor

EPM

Materials

Sleeve/pump/motor

1.4539/904L

Code for rubber part

PNBR

Shaft seal

A Tungsten carbide/carbon

Pos. Designation Quantity Dimensions

[mm] Torque

[Nm]

377b Hexagon screw 8 M16 x 45 140

352c Hexagon head screw 4 M10 x 40 33

374b Hexagon socket head

cap screw 2 M6 x 25 6

41 Hexagon head screw 4 M10 x 40 33

220 Hexagon cap screw 4 M12 x 30 70

www.motralec.com / [email protected] / 01.39.97.65.10

English (GB)

4. Service tools

The following drawings and tables show special, standard and

torque tools for pump service.

4.1 Service tools

4.2 Standard tools

4.3 Torque tools

4.4 Additional instructions

You find the dismantling and assembly service video at Grundfos'

Installation and Service Youtube.com channel, see http://

qr.grundfos.com/i/BMSservicevideo.

The PM Leroy-Somer motor and drive are available at the Leroy-

Somer website, see http://www.emersonindustrial.com/

For further information, see the online documents below:

• Grundfos quick guide for BMS hs, BMS hp, BMST and BMSX:

http://net.grundfos.com/qr/i/98737800

• Grundfos installation and operating instructions for BMS hs

BMShp, BMST and BMSX: http://net.grundfos.com/qr/i/

98567337

• Grundfos installation and operating instructions for MGE

installation: http://net.grundfos.com/qr/i/96780071

• Grundfos installation and operating instructions for CUE: http:/

/net.grundfos.com/qr/i/96706951

• Grundfos service instructions for CUE: http://

net.grundfos.com/qr/i/96765700

• Grundfos service instructions for SP, see Grundfos Product

Center, www.grundfos.com.

ABCDEF

GHL

Pos. Designation Dimensions

[mm] For pos. Part number

A Open-end spanner 24 377b SV0122

B Open-end spanner 19 363a 00SV0054

C Open-end spanner 17 352c 00SV0056

D Hexagon key 6 374b 00ID1784

E Hook spanner 40-42 371b 00ID3407

Pos. Designation Torque For pos. Part number

F Torque wrench 40-200 Nm 377b 00SV0400

20-100 Nm 352c, 220, 41 00SV0269

G Torque screwdriver 1-6 Nm - 374b 00SV0438

H Ring insert tool

M16 377b 00SV0524

M12 220 00SV0271

M10 352c, 41 00SV0270

L Socket driver for hexagon socket M6 374b 00SV0296

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English (GB)

5. Before dismantling

General information about BMS hs and BMS hp

The work site must be clean, free of salt or brine water and iron

filings. Clean the workplace with flushing water, if it is necessary.

1. If the pump is to be repaired at a service workshop, do the

following:

2. Check that the pump has not been damaged during

transportation.

3. Identify the type designation. See the pump nameplate.

4. If the repair is to be done on site before dismantling the pump,

check the installation:

– wiring connections (power supply and signals)

– hydraulic connections

– inlet and outlet pressure and flowmeter value(s), if possible

– protection: pressure switches, flow switches and motor

protection etc.

5. Compare the motor voltage and frequency details on the

motor and frequency converter nameplates with the power

supply available.

– Read and note down the trip and failure log of the frequency

converter.

5.1 Dismantling pump and motor

1. Remove the Victaulic clamp at the inlet-and outlet.

2. Remove the service connector, if it is installed.

Fig. 2 Removing the Victualic coupling and service connector

3. Remove the four M10 bolts.

Fig. 3 Dismantling pump and motor

4. Loosen the clamps and pull the pump towards the outlet port if

the pump is mounted on a base frame.

Fig. 4 Removing pump from motor

5.2 Dismantling the thrust bearing

5. Remove the two hexagon socket head cap screws.

Fig. 5 Loosening the hexagon socket head cap screws

6. Use the screws to pull out the thrust bearing from the bearing

housing.

Fig. 6 Removing the thrust bearing

TM06 4563 2515TM06 4564 2515

TM06 4565 2515TM06 4566 2515TM06 4567 2515

Clamps

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English (GB)

7. Pull back the thrust bearing and shaft from the bearing

housing.

Fig. 7 Shaft bearing with shaft

8. Remove the two O-rings.

Note: Always replace the O-rings and use soapy water for

lubrication.

Fig. 8 Removing O-rings

5.3 Dismantling the thrust bearing and shaft seal

1. Remove the thrust bearing shaft.

Fig. 9 Removing the shaft

2. Remove the four pins.

Fig. 10 Removing the pins

3. Pull out the thrust bearing and support.

Note: Inspect the up-thrust bearing surfaces, stationary and

rotary. Both must be free of scratches, cracks and any visible

wear.

Fig. 11 Removing the thrust bearing and support

4. Pull out the shaft seal.

Fig. 12 Removing the shaft seal

TM06 4568 2515TM06 4569 2515TM06 4570 2515

TM06 4571 2515TM06 4572 2515TM06 4573 2515

www.motralec.com / [email protected] / 01.39.97.65.10

English (GB)

5.4 Assembling the thrust bearing

5. Note down the position of the pin.

Fig. 13 Position of the pin

6. Note down the position of the hole.

Fig. 14 Position of the hole

7. Mount the shaft seal.

Fig. 15 Mounting of shaft seal

8. Note down the position of the holes in the thrust bearing.

Fig. 16 Position of the thrust bearing

9. Assembly of support and thrust bearing

10. Insert the four pins.

Fig. 17 Inserting the pins

TM06 4574 2515TM06 4575 2515TM06 4576 2515

TM06 4577 2515

Note

The round hole in the stationary part of the

bearing must be paired with the oval hole at the

bearing housing.

TM06 4578 2515

Note

Make sure that the thrust bearing is moving freely

in all four axes.

www.motralec.com / [email protected] / 01.39.97.65.10

English (GB)

5.5 Dismantling the rotating shaft seal part

1. Loosen and remove the shaft seal (left-hand thread). For

service tool, see section 4. Service tools.

Fig. 18 Loosening the shaft seal

2. Remove the shaft seal and O-ring.

Fig. 19 Shaft seal and O-ring

3. Mount a new O-ring and shaft seal.

4. Tighten the shaft seal.

Fig. 20 Tightening the shaft seal

5. Remove the support bearing and replace it.

Fig. 21 Support bearing

6. Insert the inner and outer O-rings.

Fig. 22 Replacing the O-ring

7. Insert the complete thrust bearing.

Fig. 23 Mounting the thrust bearing

TM06 4579 2515TM06 4580 2515

Note

Always replace the O-rings. Use soapy water for

lubrication.

TM06 4581 2515

TM06 4582 2515TM06 4583 2515

Note

Always replace the O-rings. Use soapy water for

lubrication.

TM06 4584 2515

O-rings

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English (GB)

8. Mount the two hexagon socket head cap screws.

Fig. 24 Assembling the thrust bearing

5.6 Dismantling the pump and sleeve

9. Unscrew the 4 x M10 bolts.

Fig. 25 Dismantling the pump and sleeve

10. Remove the flange and loosen the bearing housing union nut.

Fig. 26 Loosening the union nut

11. Use a open-end spanner to help separate the pump and

sleeve.

Fig. 27 Separating the pump and sleeve

12. Pull out the pump.

13. Check the SP service instruction in Grundfos Product Center

for more information about dismantling and repairing the

pump.

Fig. 28 Pulling out the pump

14. Replace the two O-rings.

Fig. 29 Replacing the O-rings

TM06 4585 2515TM06 4586 2515TM06 4587 2515

TM06 4588 2515TM06 4589 2515TM06 4590 2515

Note

Always replace the O-rings. Use soapy water for

lubrication.

www.motralec.com / [email protected] / 01.39.97.65.10

English (GB)

15. Replace the O-ring.

Fig. 30 Replacing the O-ring

5.7 Assembling the pump

16. Mount the pump again. Make sure that the guide pins point

downwards during assembly.

Fig. 31 Guide pins

17. Tighten the union nut by hand.

Fig. 32 Tightening the union nut

18. Loosen the union nut by 90 ° angle. Use markings if needed.

The union nut is loosen again in order to create a small gap

between the pump and sleeve flange.

Fig. 33 Union nut is turned 90 °

19. Tighten the four screws with 33 Nm.

Fig. 34 Tightening the screws

20. Connect the pump and motor again. Make sure that the mark

"UP" points upwards so the drain hole points downwards.

Fig. 35 Correct position of "UP"

TM06 4591 2515

Note

Always replace the O-rings. Use soapy water for

lubrication.

TM06 4592 2515TM06 4593 2515

guide pins

TM06 4594 2515TM06 4595 2515TM06 4596 2515

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