Grundfos MMS 10000, Installation And Operating Instructions Manual, Page: 6 / 32

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4.1.3 Grundfos MMS6, MMS8000, MMS10000 and
MMS12000 submersible motors
Filling procedure:
Place the motor at a 45 ° angle with the top of the
motor upwards. See fig.
5 .
1. Unscrew the plug (A) and place a funnel in the
hole.
2. Pour tap water into the motor until the motor
liquid inside the motor starts overflowing the plug
(A).
3. Remove the funnel and place back the plug (A).
The submersible motor is now ready for assembly
with the pump and ready for installation.
Fig. 5 Motor position during filling - MMS
4.2 Positional requirements
The motor can be installed either vertically or
horizontally.
4.2.1 Motors suitable for horizontal installation
Do not use motor liquid that contains oil.
Before fitting the motor to a pump after a
long period of storage, lubricate the shaft
seal by adding a few drops of water and
turning the shaft.
TM0
3
2
06
5 3
6
0
5
45°
A
Motor type
Output power
50 Hz
Output power
60 Hz
[kW] [kW]
MS All sizes All sizes
MMS6 5.5 - 37 5.5 - 37
MMS8000 22-92 22-92
MMS10000 75-170 75-170
MMS12000 147-190 -
CAUTION
Hot surface
Minor or moderate personal injury
- If the pump is used for pumping hot
liquids (40 to 60 °C), make sure that
people cannot come into contact with
the pump and the installation, e.g. by
installing a guard.
During operation, the motor must always
be completely submerged in the liquid.
Make sure that the NPSH values of the
mounted pump are fulfilled.