Grundfos CR Series Service Instructions

English (GB)
4
1.3 Safety details to be aware of when working on the
product
For lifting instructions, see the instructions provided with the
product.
We recommend that you repair pumps with motors of 7.5 kW and
up at the pump site. Necessary lifting equipment must be
available.
1.4 Contaminated products
The product will be classified as contaminated if it has been used
for a liquid which is injurious to health or toxic.
If you request Grundfos to service the product, contact Grundfos
with details about the liquid before returning the product for
service. Otherwise, Grundfos can refuse to accept the product for
service.
Any application for service must include details about the liquid.
Clean the product in the best possible way before you return it.
Costs of returning the product are to be paid by the customer.
1.5 Servicing the motor
Grundfos MG and MGE motors
Service documentation is available in Grundfos Product Center >
http://product-selection.grundfos.com/.
Motors of other makes
Contact the motor manufacturer.
2. Preparing the dismantling of the product
2.1 Lifting the product
Lifting procedures are described in the installation and operating
instructions. Use the QR code or link below:
3. Dismantling and assembling the product
Parts are indicated by numbers and refer to the drawings in
section 7.5 Drawings.
Tools are indicated by letters and refer to section 7.3 Special
service tools.
3.1 Motor
3.1.1 Removal
1. Disconnect the power supply and remove the power cable.
2. Remove screws (7a) and coupling guards (7).
3. Remove screws (9) and coupling halves (10a). It may be
necessary to gently loosen the coupling halves with a plastic
hammer.
4. Remove cylindrical pin (10) from the pump shaft (51).
5. Attach approved lifting equipment to the motor in order to
prevent it from falling before proceeding with any further
dismantling. For correct attachment of lifting equipment, see
instructions supplied with the pump.
6. Remove the screws (28a), washers (32a) and nuts (36a).
7. Carefully lift the motor off the pump using approved lifting
equipment. For lifting the motor correctly, see instructions
supplied with the pump.
DANGER
Electric shock
Death or serious personal injury
- Before starting any work on the product, make
sure that the power supply has been switched off
and that it cannot be accidentally switched on.
WARNING
Falling objects
Death or serious personal injury
- Follow the lifting instructions.
- Use lifting equipment which is approved for the
weight of the product.
- Persons must keep a safe distance to the product
during lifting operations.
- Wear personal protective equipment.
WARNING
Falling objects
Death or serious personal injury
- Keep the product in a stable and fixed position
when working on it.
WARNING
Corrosive liquids
Death or serious personal injury
- Wear personal protective equipment.
WARNING
Toxic liquids
Death or serious personal injury
- Wear personal protective equipment.
CAUTION
Hot or cold liquid
Minor or moderate personal injury
- Wear personal protective equipment.
CAUTION
Hot or cold surface
Minor or moderate personal injury
- Make sure that no one can accidentally come into
contact with hot or cold surfaces.
CAUTION
Biological hazard
Minor or moderate personal injury
- Flush the pump thoroughly with water and rinse the
pump parts in water after dismantling.
http://net.grundfos.com/qr/i/99078486

Grundfos CR Series Specifications

General

Brand	Grundfos
Model	CR Series
Category	Water Pump
Language	English