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Pump type
AP40
AP50
AP50 (1.2 kW)
AP60 (0.8 kW)
AP60 (1.8 kW)
AP70
CAUTION
Pressurised system
Minor or moderate personal injury
‐
The oil chamber may be under
pressure. Loosen the screws carefully
and do not remove them until the
pressure has been completely relieved.
Draining of oil
1. Place the pump on a level surface with one oil
screw pointing downwards.
2. Place a 1 litre capacity transparent container
under the oil screw.
3. Remove the lower oil screw.
4. Remove the upper oil screw. Inspect the oil. If the
colour is greyish white, the oil may contain water.
If the oil contains water, the shaft seal is defective
and must be replaced. If the oil quantity is less
than the specified, the shaft seal is defective. If
the shaft seal is not replaced, it can cause motor
damage.
5. Clean the surfaces for gaskets and oil screws.
Filling with oil
1
Oil filling
14
Quantity [l]
0.01
0.8
0.01
0.8
0.5
0.5
Proceed as follows:
1. Place the pump horizontally, on a level surface.
2. Fill new oil into the chamber through the oil filling
position (1). The correct oil volume is prescribed
in the Table above. Use Shell Ondina X420 or
equivalent.
3. Remove the old seal (gasket) for the oil plug,
and replace it with a new seal, which can be found
in Kit Oil Plug Seals.
4. Fit both oil screws
Contaminated pumps
The product is classified as contaminated, if it is used
for contagious or toxic liquid.
CAUTION
Biological hazard
Minor or moderate personal injury
‐
Flush the pump thoroughly with clean
water and rinse the pump parts after
dismantling.
Before returning the product for service, contact
Grundfos with details about the pumped liquid.
Otherwise, Grundfos can deny to service the product.
CAUTION
Biological hazard
Minor or moderate personal injury
‐
Flush the pump thoroughly with clean
water and rinse the pump parts after
dismantling.
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