Grundfos S Series - 1 Symbols Used in this Document; Table of Contents; Hazard Statements; Notes

English (GB)
2
English (GB) Service instructions
Original service instructions
In this document there are references to the installation and
operating instructions for the S pumps, ranges 50-70 (96838602).
The installation and operating instructions are accessible via the
QR code and the link on the front of this document.
CONTENTS
Page
1. Symbols used in this document
1.1 Hazard statements
The symbols and hazard statements below may appear in
Grundfos installation and operating instructions, safety
instructions and service instructions.
The hazard statements are structured in the following way:
1.2 Notes
The symbols and notes below may appear in Grundfos
installation and operating instructions, safety instructions and
service instructions.
1. Symbols used in this document
2
1.1 Hazard statements
2
1.2 Notes
2
2. Safety
3
3. Receiving the product
3
3.1 Transporting the product
3
3.2 Contaminated pumps
3
4. Handling the pump
3
4.1 Lifting the pump
3
4.2 Lifting points
3
4.3 Raising the pump to upright position
4
5. Identification
5
5.1 Nameplate
5
5.2 Approval plates
5
5.3 Type keys
6
6. Torques and lubricants
8
6.1 Common torques (stainless steel screws)
8
6.2 Special torques and lubricants
8
6.3 Quantities of grease in bearings
8
6.4 Motor oil
8
7. Service tools
9
7.1 Standard tools
9
7.2 Special tools
10
7.3 Tightness test tools
10
7.4 Lifting tools
10
8. Service
11
8.1 General information
11
8.2 Servicing pumps with explosion-proof motors
11
8.3 Pump cleaning and visual inspection
11
8.4 Annual maintenance
11
8.5 Oil check and oil change
12
8.6 Inspection and adjustment of impeller clearance
13
8.7 Electrical measurements
13
9. Dismantling and assembly instructions
15
9.1 Checking and replacing the cable
15
9.2 Replacing the protection sensors
16
9.3 Dismantling - S pump
18
9.4 Dismantling - ST pump
19
9.5 Assembling - S pump
20
9.6 Assembling - ST pump
22
10. Tightness test
23
10.1 Tightness test of shaft seal housing
23
10.2 Tightness test of stator housing (submerged)
23
11. Drawings
24
11.1 Sectional drawings
24
11.2 ST pumps
39
11.3 Sensor positions
41
11.4 Electrical connections
42
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.
SIGNAL WORD
Description of hazard
Consequence of ignoring the warning.
- Action to avoid the hazard.
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.
Tips and advice that make the work easier.