Eng
lish (US)
14
8. Start-up
Check the oil level in the gearbox before starting up the pump.
The oil level must cover between 50 % and 75 % of the gearbox.
If required, fill oil into the gearbox through the oil filling hole
(pos. 2). For oil quality and quantity, see section 9.3 Oil.
If the pump has been in stock for a period before start-up,
see section 9.2 Service chart.
Fig. 19 Oil check and oil filling
Checks before start-up
1. Check that thepropeller is rotating in the correct direction.
See section 7.6 Direction of rotation.
2. Make sure that the pump is completely submerged in the
liquid.
3. Make sure that there are no solid objects in the tank.
9. Service
Before starting any work on a pump used in liquids which could
constitute a hazard to health, thorough cleaning/venting of the
pump, tank, etc. must be carried out according to local
regulations.
9.1 Contaminated pump
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.
Warning
When loosening the oil level screw, note that
pressure may have built up in the chamber.
Do not remove the screw until the pressure has
been fully relieved.
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Caution
The pump must always be submerged during
operation.
Warning
Make sure that no persons can fall into the tank.
1
3
2
Warning
Before starting work on the pump, make sure that
the fuses have been removed or the mains switch
has been switched to off. Make sure that the
power supply cannot be accidentally switched
on.
All rotating parts must have stopped moving.
Warning
If a pump has been used for a liquid which is
injurious to health or toxic, it will be classified as
contaminated.
