ZUWA Impeller Pumps
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11. Troubleshooting
Fault
Possible cause
Remedy
Pump does not take in
liquid
intake line is not leaktight seal connection or line
impeller worn or damaged replace impeller
suction line or foot valve is
blocked
clean suction line or foot
valve
pressure line closed or
blocked
open fittings on the pressure
side or clean pressure line
Pump does not build up
pressure
impeller or lateral discs
worn or damaged
replace impeller or lateral
discs
Liquid escapes from the
pump
shaft gasket or o-ring
missing or defective
check whether part is in place
and insert or replace
defective component
Pump does not start
impeller blocked
fill pump with the medium to
be pumped
impeller clogged up or
swollen
use an impeller appropriate
to the medium
motor defective
have motor checked by
specialist personnel and have
repaired if necessary
12. Environmentally compatible disposal
Most components of the device can be recycled. All metals (steel, aluminum, brass)
can be disposed off at any scrap metal dealer.
Follow the locally applicable regulations.
Plastic parts can be contaminated by toxic pumped media, to the extent that cleaning
is no longer an adequate solution.
Warning
Danger of injury and poisoning due to dangerous pumped media
>
Collect escaping pumped media and dispose of according to the
locally applicable regulations.
>
Neutralise residues of pumped media in the pump chamber.
