7 Servicing/Maintenance
68 of 98
UPA / UPA S
3400.86/17-EN
7.4.1 Motor fill - DN 100
The DN 100 motor is supplied filled with drinking water / antifreeze mixture,
providing protection for temperatures down to -15 °C. Usually, the fill liquid does not
need to be topped up or replaced.
NOTE
The loss of a few drops of liquid fill will not impair the motor function. If any larger
amounts of leakage are suspected, the motor fill must definitely be checked.
7.4.2 Motor fill – UMA 150, UMA-S 150, UMA 200, UMA-S 200, UMA 250, UMA-S 250
UMA 150, UMA-S 150, UMA 200, UMA-S 200, UMA 250 and UMA-S 250 submersible
motors are supplied filled with a drinking water/antifreeze agent mixture, providing
protection for temperatures down to -15 °C.
1. If the submersible motor has been stored or out of service for more than one
year, check the motor fill.
7.4.2.1 Checking the motor fill of UMA 150, UMA-S 150, UMA 200, UMA-S 200, UMA
250 or UMA-S 250 submersible motors
WARNING
Pump set tilting or rolling off
Risk of personal injury!
▷
Always secure vertically positioned pump sets against tipping over.
▷
Always secure horizontally positioned pump sets against rolling off.
A special test pin is required to check the motor fill. This test pin can be ordered as an
accessory
22)
.
44
59
64
Fig. 31:
Drawing of the test pin, dimensions in [mm]
Table 28:
Diaphragm distances
Motor type series
Material variant
Distance required (A)
UMA 150
E, C, D
44 mm +/- 2 mm
UMA-S 150
E, C, D
44 mm +/- 2 mm
UMA 200
G, C, D
44 mm +/- 2 mm
UMA-S 200
G, C, D
44 mm +/- 2 mm
UMA 250
G, C, D
64 mm +/- 2 mm
UMA-S 250
G, C, D
64 mm +/- 2 mm
22
Fill check kit
