BMS
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BMS hs, BMS hp, BMST, BMSX
Service instructions
GRUNDFOS INSTRUCTIONS
English (GB) Service instructions
Caution
Note
N/A
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English (GB)
Original service instructions.
CONTENTS
Page
1. Symbols used in this document
2. Identification
2.1 Nameplate
2.2 Type key
3. Torques
4. Service tools
4.1 Service tools
4.2 Standard tools
4.3 Torque tools
4.4 Additional instructions
5. Before dismantling
5.1 Dismantling pump and motor
5.2 Dismantling the thrust bearing
5.3 Dismantling the thrust bearing and shaft seal
5.4 Assembling the thrust bearing
5.5 Dismantling the rotating shaft seal part
5.6 Dismantling the pump and sleeve
5.7 Assembling the pump
5.8 Aligning pump and motor
6. Software
6.1 Grundfos BMS hs
6.2 Grundfos BMS hp
7. Pressure exchanger
8. Fault finding
8.1 BMS hs and BMST
8.2 BMS hp
8.3 Pressure exchanger
9. Checking the motor and cable
10. Drawings
11. Data report, POWERDRIVE
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.
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1. Symbols used in this document
Warnin g
If these safety instructions are not observed,
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2. Identification
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This section shows the type key, the nameplate and the codes
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that can appear in the variant code.
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2.1 Nameplate
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Fig. 1 Nameplate
Pos. Description
10 Minimum efficiency index
11 Country of origin
12 CE mark
13 TR mark
it may result in personal injury.
If these safety instructions are not observed, it
may result in malfunction or damage to the
equipment.
Notes or instructions that make the job easier
and ensure safe operation.
1 Type designation
Model designation:
• generation
2
• 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
TM05 9242 3613
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2.2 Type key
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Example BMS30-26hs-E-C-P-A
Pump
BMS
BMSX
BMST
Rated pump flow rate [m
Number of stages
Type
hs
hp
Motor
EPM
MaterialsCSleeve/pump/motor
Code for rubber part
PNBR
Shaft seal
A Tungsten carbide/carbon
include X-changer and
BM hp pump
include BMT pump
High-pressure pump with high-speed
High inlet pressure
1.4539/904L
3
/h]
3. Torques
This section shows the screws and nuts that must be tightened to
a certain torque and the lubricants to be used.
English (GB)
Pos. Designation Quantity
377b Hexagon screw 8 M16 x 45 140
352c Hexagon head screw 4 M10 x 40 33
Hexagon socket head
374b
cap screw
41 Hexagon head screw 4 M10 x 40 33
220 Hexagon cap screw 4 M12 x 30 70
Dimensions
[mm]
2 M6 x 25 6
Torque
[Nm]
3
4. Service tools
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English (GB)
The following drawings and tables show special, standard and
torque tools for pump service.
4.1 Service tools
ABCDEF
GHL
4.2 Standard tools
Pos. Designation
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
Dimensions
[mm]
For pos. Part number
4.3 Torque tools
Pos. Designation Torque For pos. P art number
F Torque wrench
G Torque screwdriver 1-6 Nm - 374b 00SV0438
H Ring insert tool
L Socket driver for hexagon socket M6 374b 00SV0296
40-200 Nm 377b 00SV0400
20-100 Nm 352c, 220, 41 00SV0269
M16 377b 00SV0524
M12 220 00SV0271
M10 352c, 41 00SV0270
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 LeroySomer 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.
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5. Before dismantling
Clamps
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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.
4. Loosen the clamps and pull the pump towards the outlet port if
the pump is mounted on a base frame.
English (GB)
TM06 4565 2515TM06 4566 2515TM06 4567 2515
Fig. 4 Removing pump from motor
5.2 Dismantling the thrust bearing
5. Remove the two hexagon socket head cap screws.
Fig. 2 Removing the Victualic coupling and service connector
3. Remove the four M10 bolts.
Fig. 5 Loosening the hexagon socket head cap screws
6. Use the screws to pull out the thrust bearing from the bearing
housing.
TM06 4563 2515TM06 4564 2515
Fig. 6 Removing the thrust bearing
Fig. 3 Dismantling pump and motor
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7. Pull back the thrust bearing and shaft from the bearing
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English (GB)
housing.
2. Remove the four pins.
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.
TM06 4568 2515TM06 4569 2515TM06 4570 2515
TM06 4571 2515TM06 4572 2515TM06 4573 2515
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. 9 Removing the shaft
Fig. 12 Removing the shaft seal
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