Maintenance; Diffuser Adjustment; Replacing The Impeller; Changing The Oil - DRENO KAPPA K 040 Instructions De Mise En Service Et D'entretien

10. MAINTENANCE

WARNING! Before any intervention, check that the pump is disconnected from the mains power supply and that is not live.
The figures in brackets refer to the position and can be found in the side section. Preventive control and maintenance, if carried out regularly, ensure
the best operation. The pump should be checked every six months, more often in difficult operating conditions.
Problem
The pump does not work or
does not work properly
The pump does not give the
desired performance

10.1 DIFFUSER ADJUSTMENT*

1 - Loosen the 4 or 6 self-locking nuts (depending on the models) that hold the pump base in place.
2 - Remove the mantle.
3 - Remove the sleeves and with a wrench act on the nuts that adjust the distance of the diffuser from the impeller, adjust until you reach the mini-
mum distance between the impeller blades and the bottom of the diffuser.
NB try to make this adjustment so that the distance is the same in the various recording angles.
4 - Reassemble everything in reverse order.
WARNING!
Threaded guide pins can be sharp, be careful not to cut yourself.

10.2 REPLACING THE IMPELLER*

1 - Follow the descriptions on the "diffuser adjustment" up to point 2.
2 - Remove the sleeves and with a wrench act on the nuts that hold the diffuser in place and unscrew them completely.
3 - Remove the diffuser.
4 - Loosen the impeller locking screw located in the centre of the impeller.
5 - Remove the impeller and fit a new one.
6 - Make sure that the impeller locking screw is tightened.
7 - Reassemble everything in reverse order.
WARNING!
If the impeller is worn, its edges can be sharp. Be careful not to cut yourself.

10.3 CHANGING THE OIL*

1) Loosen the nuts and remove the plate.
2) Remove the mantle from the pump.
WARNING!
The oil may be under pressure in the sump. Hold a cloth over the oil cap and open with caution, to avoid splashing.
3) Unscrew the oil cap and drain the oil into a clean container. Check the oil.
WARNING!
Do not dispose of used oil in the environment.
Refill with clean oil. Use "white" oil with 15 cST viscosity, for example B.EnerparM002 or equivalent.
Always replace the O-ring (O) Ring (29) on the oil cap. Refit the cap.
Reassemble in reverse order.
WARNING!
If the impeller is worn, its edges can be sharp. Be careful not to cut yourself.
* Excluding K055-075 models
PARTS OF THE
PUMP
Check that the sheath is intact, check
Cables
that there are no kinks or bends
Check that all parts are intact and that
Visible parts
the screws are tightened well
Check that the grommet ring nut is ti-
Grommet
ght and that no liquid enters the cover
Check that the oil is clean
Oil chamber
Check the diffuser adjustment, check
Diffuser impeller
the wear
Check the system for leaks or other
System, pipes and valves
damage
INSPECTION
Replace the power cable
Replace if necessary, tighten the screws
and nuts
Tighten the grommet ring nut, replace
the cable and the damaged parts
If the oil is dirty, replace it. If the oil
is dirty and is contaminated, contact
Dreno Pompe
Adjust the diffuser, contact Dreno
Pompe
Fix any parts of the system that have
problems
13
INTERVENTION IN CASE OF
FAILURE