BADU Normblock Multi 100/250, Translation Of Original Operation Manual

Page: 92 / 352

Faults
32 EN 04/2019
Fault : Pump leaks
Possible cause Solution
Screw connection or seal
faulty.  Renew seal between volute
casing and housing lid.
 Tighten screw connections.
Fault : Shaft seal leaks too much
Possible cause Solution
Mechanical seal is worn
or damaged.
 Replace mechanical seal.
Damage during
disassembly.
 Replace mechanical seal.
Pump is loud.  Improve suction conditions.
 Adjust pump unit.
 Increase the pressure on the
suction discharge.
Pump strained or
vibrations in the pipes.  Check pipe connections and
pump fasteners, if necessary
reduce the pipe bracket
spacing.
 Fasten pipes using vibration
reducing materials.
Pump shaft slipped.  Fix pump shaft. See point 8.5.5
on page 40