SKF Spandau Pumpen PSR 02, Руководство по сборке и соответствующее руководство по эксплуатации, Страница: 26 / 32

10. Faults Page 26
EN
Table 3 cont. ? Fault analysis and troubleshooting
Problem Possible cause Rectification
Motor circuit breaker triggers at
times Motor circuit breaker is set too low Set the motor circuit breaker to the predefined value indicated on the rating plate and
make sure that the pump is not overloaded.
1)
Electricity supply is not constant Check the connection of the terminal board.
Check the fuse and replace if required.
Mains voltage is too low at times Make sure that the values on the rating plate match the mains values.
Use a mains supply with a constant voltage.
Pump output is not stable Suction opening is partially clogged Check the suction opening and clean if required.
Pump is sucking in air Check the fill level of the pump and adjust if necessary.
Incorrect installation See "Assembly instructions".
Pump is running but not conveying
medium Suction opening blocked Check the suction opening and clean it if necessary.
The medium may be heavily contaminated. Replace it.
Extension pipe not leak*tight Check the extension pipe and rectify any leaks
Pump has no conveyed medium Check the fill level and adjust if necessary.
Air pocket in the pump Bleed the pump.
Incorrect rotational direction Change the rotational direction in accordance with the circuit diagram.
Shut*off valve closed Open the shut*off valve.
Noise, vibrations, or leaks Pump is sucking in air Check the fill level of the pump and adjust if necessary.
Feed height too low Increase the fluid level or feed height.
Shaft bearing defective Replace the shaft bearing.
1)
Factors which may cause pump overload include the following: The viscosity and temperature of the medium to be conveyed, flow rate, flow height, ambient
temperature, and degree of contamination.