Filters; Periodic Checks; Service; Service Kits - Grundfos CRK 2 Installation And Operating Instructions Manual

9.1 Filters

Chip trays, filters, etc. should be cleaned at regular
intervals to ensure a correct flow of liquid.

9.2 Periodic checks

At regular intervals, depending on the conditions and
time of operation, the following checks should be
made:
• Check the quantity of liquid and operating
pressure.
• Check that there are no leaks.
• Check that the motor is not overheating.
• Check the tripping function of the motor-
protective circuit breaker.
• Check that all controls are operating
satisfactorily.
If the above checks do not reveal any abnormal
operating details, no further checks are necessary.
Should any faults be found, check the symptoms
according to section
12. Fault

10. Service

Warning
If a pump has been used for a liquid which
is injurious to health or toxic, the pump will
be classified as contaminated.
If Grundfos is requested to service the pump,
Grundfos must be contacted with details about the
pumped liquid, etc. before the pump is returned for
service. Otherwise Grundfos can refuse to accept
the pump for service.
Possible costs of returning the pump are paid by the
customer.
However, any application for service (no matter to
whom it may be made) must include details about
the pumped liquid if the pump has been used for
liquids which are injurious to health or toxic.

10.1 Service kits

Service kits for CRK and MTR, see https://product-
selection.grundfos.com/ or Service Kit Catalogue.

10.2 Coupling adjustment

For adjustment of coupling in CRK and MTR 1s to
20, see page 14.
For adjustment of coupling in MTR 32, 45, 64, see
page 15.
finding.

11. Sound pressure level

The table below shows airborne noise emitted by
CRK and MTR pumps with motors fitted by
Grundfos.
Motor
[kW]
50 Hz
0.37
0.55
0.75
1.1
1.5
2.2
3.0
4.0
5.5
7.5
11
15
18.5
22
30
37
45
L [dB(A)]
pA
60 Hz
50 55
50 53
50 54
52 57
54 59
54 59
55 60
62 66
60 65
60 65
60 65
60 65
60 65
66 70
71 75
71 75
71 75
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