English (GB)
3
English (GB) Service instructions
Original service instructions
CONTENTS
Page
1. General information
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. General information
3
1.1 Hazard statements
3
1.2 Notes
3
1.3 Safety details to be aware of when working on the
product
4
1.4 Contaminated products
4
1.5 Servicing the motor
4
2. Preparing the dismantling of the product
4
2.1 Lifting the product
4
3. Dismantling and assembling the product
4
3.1 Motor
4
3.2 Shaft seal, motor stool, pump head cover, sleeve and
chamber stack
5
3.3 Thrust-handling device
8
4. Renewing thrust-handling device wear parts
9
4.1 Chamber stack
9
5. Renewing chamber wear parts
14
5.1 Neck ring (45)
14
5.2 Bush (47c) and retaining ring (47d)
15
6. Renewing shaft-seal wear parts
16
6.1 Dismantling
16
6.2 Assembly
16
7. Additional information
17
7.1 Torques
17
7.2 Lubricants
17
7.3 Special service tools
18
7.4 Order of assembly for chambers and impellers
20
7.5 Drawings
21
Read this document before starting service work on
the product. Installation and service work must
comply with local regulations and accepted codes of
good practice.
Observe the safety instructions in the installation and
operating instructions for the product.
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.
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