English (US) Service instructions
Original service instructions
Table of contents
1. General information ........................4
1.1 Hazard statements..........................4
1.2 Notes ..................................4
2. Transporting the product .....................5
3. Handling and lifting the product ................5
4. Identification .............................5
4.1 Nameplate...............................5
4.2 Type key ................................6
5. Service tools .............................6
5.1 Special tools .............................6
5.2 Service sledge ............................7
5.3 Horizontal bracket installation ...................9
5.4 Lifting tools .............................11
5.5 Seal ring mounting tool ......................11
6. Tightening torques and lubricants ..............12
6.1 Torques for inlet and outlet flanges ...............12
7. Electrical connection ......................12
7.1 Protection and control functions .................12
7.2 Pump controllers ..........................14
7.3 Thermal switch, Pt1000 and thermistor ............14
7.4 Water-in-oil sensor .........................14
7.5 Moisture switch ...........................14
7.6 IO 113 ................................14
7.7 Frequency converter operation .................15
7.8 Wiring diagrams ..........................16
8. Maintenance ............................21
8.1 Servicing Grundfos pumps with explosion-proof motors ..21
8.2 Oil check and change .......................22
8.3 Cleaning and inspecting the pump ...............23
8.4 Checking the sensors .......................23
9. Disassembly ............................24
9.1 Removing the cable ........................24
9.2 Removing the pump housing...................24
9.3 Removing the impeller ......................24
9.4 Removing the seal ring and wear ring .............24
9.5 Removing the WIO sensor ....................25
9.6 Removing the moister switch ..................25
9.7 Removing the shaft seal .....................25
9.8 Removing the rotor.........................25
9.9 Removing the bearings ......................25
9.10 Removing the motor top .....................25
9.11 Removing the pin housing ....................25
9.12 Removing the sleeve .......................26
9.13 Removing the stator housing...................26
9.14 Removing the stator ........................26
10. Contaminated pumps ......................26
11. Assembly ..............................27
11.1 Fitting the stator ..........................27
11.2 Fitting the stator housing .....................27
11.3 Fitting the sleeve ..........................28
11.4 Fitting the shaft ...........................28
11.5 Fitting the lower bearing .....................28
11.6 Fitting the WIO sensor ......................28
11.7 Fitting the moister switch .....................29
11.8 Fitting the shaft seal ........................29
11.9 Fitting the seal ring and wear ring (SE1)............30
11.10 Fitting the impeller .........................30
11.11 Fitting the pump housing .....................30
11.12 Fitting the pin housing .......................30
11.13 Fitting the cable...........................31
11.14 Fitting the motor top ........................31
12. Startup................................31
12.1 General startup procedure ....................31
13. Fault finding ............................32
14. Drawings ..............................33
14.1 SE1 ..................................33
14.2 SEV..................................35
14.3 Material specification .......................36
14.4 Sensor positions ..........................39
1. General information
Read this document before you install the product.
Installation and operation must comply with local
regulations and accepted codes of good practice.
1.1 Hazard statements
The symbols and hazard statements below may appear in Peerless
installation and operating instructions, safety instructions and
service instructions.
DANGER
Indicates a hazardous situation which, if not avoided, will
result in death or serious personal injury.
WARNING
Indicates a hazardous situation which, if not avoided,
could result in death or serious personal injury.
CAUTION
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate personal injury.
The hazard statements are structured in the following way:
SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning
• Action to avoid the hazard.
1.2 Notes
The symbols and notes below may appear in Grundfos installation
and operating instructions, safety instructions and service
instructions.
Observe these instructions for explosion-proof products.
A blue or grey circle with a white graphical symbol
indicates that an action must be taken.
A red or grey circle with a diagonal bar, possibly with a
black graphical symbol, indicates that an action must not
be taken or must be stopped.
If these instructions are not observed, it may result in
malfunction or damage to the equipment.
4
English (US)
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