Maintaining The Product; Oil; Construction; Service Kits - Grundfos UNILIFT AP12 Installation And Operating Instructions Manual

7.1 Maintaining the product

• Check the pump and replace the oil once a year. If
the pump is used for pumping liquids containing
abrasive particles or it is operating continuously,
the pump must be checked at shorter intervals.
• If the drained oil contains water or other
impurities, we recommend that you replace the
shaft seal. Contact Grundfos Service.

7.2 Oil

In the case of long operating time or continuous
operation, the oil must be replaced as follows:
The oil must be replaced af-
Liquid temperature
20 °C
40 °C
55 °C
The pump contains 78 ml non-poisonous oil.
Used oil must be disposed of in accordance with local
regulations.

7.3 Construction

The construction of the pump will appear from the
table below and figures A, B and C at the end of
these instructions.
Pos. Description
6 Pump housing
37a O-ring
49 Impeller
55 Pump sleeve with motor
66 Washer
67 Lock nut
84 Inlet strainer
105 Shaft seal
182 Level switch
188a Screws
193 Screws
ter
4500 operating hours
3000 operating hours
1500 operating hours

7.4 Service kits

Service kit
Shaft seal, standard
Shaft seal, FKM
Oil

7.5 Contaminated pumps

CAUTION
Biological hazard
Minor or moderate personal injury
‐
Flush the product thoroughly with clean
water and rinse the parts in water after
dismantling.
‐
Wear personal protective equipment.
Part number
96429307
96429308
96010646
13