Startup; Priming The Product; Service; Maintenance - Grundfos SMD Installation And Operating Instructions Manual

7. Startup

7.1 Priming the product

Check the oil level in the gearbox or shaft seal
housing. The oil must fill up between 50 and 75 % of
the gearbox or shaft seal housing.
CAUTION
Pressurised system
Minor or moderate personal injury
‐
As pressure may have built up in the
oil chamber, do not remove the oil level
screw until the pressure is relieved.
If required, fill oil into the gearbox or shaft seal
housing through the oil-filling hole (2). See figs
Position of the oil drain and the oil filling screws on
SMG and SFG and Position of the oil drain and the oil
filling screws on SMD.
For oil quality and quantity, see section Oil quality,
gearbox or shaft seal housing.
If the mixer or flowmaker is stored and not used for a
long period before startup, see section Service chart.
Checks before startup:
1. Check that the propeller is rotating in the correct
direction. See section Direction of rotation.
2. Make sure that the mixer or flowmaker is
completely submerged in the liquid.
The mixer or flowmaker must always
be submerged during operation.
3. Make sure that there are no solid objects in the
tank.
Make sure that persons cannot fall into
the tank.
32

8. Service

8.1 Maintenance

Before starting work on the mixer or flow-
maker make sure that:
• the fuses are removed or the main
switch is switched off
• the power supply cannot be switched
on unintentionally
• all rotating parts have stopped moving.
Observe all regulations applying to mixers
installed in potentially explosive environ-
ments.
Make sure that no work is carried out in
potentially explosive environment.
CAUTION
Sharp element
Minor or moderate personal injury
‐
Wear safety gloves when handling the
product.
Make sure that the mixer, flowmaker and
accessories cannot roll or fall over.
All lifting equipment must be rated for the
purpose and checked for damage before
lifting the components. The lifting equip-
ment rating must under no circumstances
be exceeded.