Grundfos AMG Serie Instrucciones De Instalación Y Funcionamiento página 27

For explosion-proof products, the PTC
sensors placed in the windings must be
connected to a suitable relay with the ap-
propriate safety level (SIL 1).
If the motor is operated by a frequency
converter, the temperature class of the ex-
plosion-proof mixer or flowmaker must be
T3.
For more information about frequency con-
verter operated mixer or flowmaker speed
and torque curves, visit the Grundfos
Product Center at https://product-selec-
tion.grundfos.com.
For more information about the frequency converter
operation, see the data sheet and the installation and
operating instructions for the selected frequency
converter.
7. Startup
7.1 Priming the product
Check the oil level in the gearbox before starting up
the mixer or flowmaker. The oil level must cover
between 50 and 75 % of the gearbox.
WARNING
Pressurised system
Death or serious personal injury
‐
The oil chamber may be under pres-
sure. Loosen the screws carefully and
do not remove them until the pressure
has been fully relieved.
If required, fill oil into the gearbox through the oil
filling hole (pos. 2). See fig. Oil check and oil filling.
Oil check and oil filling
Pos. Description
1 Oil drain screw
2 Filling hole
Checks before startup:
1. Check that the propeller is rotating in the correct
direction.
2. Make sure that the mixer or flowmaker is
completely submerged in the liquid.
CAUTION
Sharp element
Minor or moderate personal injury
‐
The mixer or flowmaker must always
be submerged during operation.
1. Make sure that there are no solid objects in the
tank.
2. If the direction of rotation is wrong, interchange
any two phases in the power cable.
Make sure that no persons can fall into the
tank.
2
1
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