92
Failure Possible cause Solution
Motor uses too
much current
(Amperes)
• Wrong direction of rotation
• Flow too high
• Pump locks
• Voltage too low
• Change two terminals
• See above
• See above
• Repair electrical failure
Motor overheats • Motor uses too much current
• Ambient temperature too high
• Not enough cooling
• See above
• Cool dow
• Do not let the motor run slower
than on 25 Hz, improve air supply
Pump vibrates • Cavitation
• Pump draws air
• Motor bearings worn
• See above
• Stop leakages in suction line, raise
level in suction tank
• Replace motor (bearings)
Pump leaks • Mechanical seal broken
• Pump casing seal broken
• Replace mechanical seal
• Replace pump casing seal
Pump makes
abnormal noise
• Cavitation
• Two touching parts or pumps
blocks
• Pump ow too high
• Motor bearings worn
• See above
• See above
• See above
• Replace motor (bearings)
If the problem cannot be solved by means of the help above, or when you are not sure to have found
the reason for the failure, please contact PACKO.
8.
Assembly and disassembly
You will nd the instructions for assembly and disassembly under
http://extranet.packo.com/en/packopumps.
User name: assembly
Password: manual