Table Of Contents; General Information; Hazard Statements; Notes - Grundfos UNILIFT APG Service Instructions Manual
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English (GB) Service instructions
Original service instructions
Table of contents
1.
General information . . . . . . . . . . . . . . . . . . . . . . . . 4
2.
Hazard statements . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.
Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4.
Returning the product for service . . . . . . . . . . . . . . . 5
5.
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.
Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.1
Nameplate, UNILIFT APG . . . . . . . . . . . . . . . . . . . . . 5
6.2
Type key, UNILIFT APG . . . . . . . . . . . . . . . . . . . . . . 6
6.3
Storing and handling the product . . . . . . . . . . . . . . . . . 6
6.4
Torques and lubricants . . . . . . . . . . . . . . . . . . . . . . . 7
7.
Servicing the product . . . . . . . . . . . . . . . . . . . . . . . 8
7.1
General information . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.2
Replacing the grinder system . . . . . . . . . . . . . . . . . . 10
7.3
Adjusting the impeller clearance . . . . . . . . . . . . . . . . 10
7.4
Replacing the cable and float switch . . . . . . . . . . . . . . 11
7.5
Changing the oil . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8.
Fault finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8.1
The motor does not start . . . . . . . . . . . . . . . . . . . . . 12
8.2
time of operation . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8.3
The pump runs constantly or gives too little water . . . . . . 12
8.4
The pump runs but gives no water . . . . . . . . . . . . . . . 12
9.
Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4
1. General information
Read this document before you start service work on the
product. Service work must comply with local regulations
and accepted codes of good practice.
Observe the safety instructions in the installation and op-
erating instructions for the product.
2. Hazard statements
The symbols and hazard statements below may appear in Grundfos
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.
3. 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 indi-
cates 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 mal-
function or damage to the equipment.
Tips and advice that make the work easier.
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