19
PROCEDURES TO BE APPLIED IN CASE OF FAILURES
PROBLEM
REASON
SOLUTION
CONTROL
Seal component on the wor-
king surface can be damaged
or burnt.
There is leakage
on the pump.
There is a fluid
leakage from
transmitter body
or stages to pump
plate
There is excess
noise and vibrati-
on on the pump
Pump is not
working
Motor is working
but pump is not
discharging.
For new pumps: Seal compo-
nent can be stuck to the surfa-
ce.
O-rings maybe fraged. O-rings
may not allow seal.
Pump plate may become ellip-
tical because of installation
load.
Coupling may not be mounted
correctly.
There isn’t any fuild in pump
suction.
Motor shaft can be broken.
Pump shaft can be broken.
Suction and discharge valves
can be closed.
There is air in the pump.
Pump turning direction is
worng.
Air of suction part is not line.
Pump is absorbing air because
of the leakage in suction line.
Air is staying in the pump beca-
use of low water consumption.
Bottom lapel is congested.
Fan and diffusors are conges-
ted.
O-rings do not provide enough
permeability.
Change the o-ring with high
permeable o-ring.
Clean the pump’s inner pats.
Clean the bottom lapel.
İncrease the water consumpti-
on or use small pump.
Repair the leakage in the line
by checking recor connection
parts.
Take the air vent of suction
line.
Change the places of the
phases L1 and L2 which are
one of there phases
Take the air vent of the pump
Open the valves.
Tighten the coupling mounting
bolts in suitabletorgues.
Coupling can be unwaged.
Consult the authorized service.
There is damage in housing
or motor.
NPSH value can be low. (cavi-
tation)
Pump is placed on an uneven
place.
There is no voltage on the
terminal ends.
Thermic protection can open
the swich.
Reset the motor thermic pro-
tection. If problem repaets
consult authorized service.
Improve the suction parts, if
needed do alterations.
Consult the authorized service.
Change the housing having
problem.
Smooth the floor.
Fill the pump with water and
take the air.
Check the power supply.
Main Switch,Fuse,Thermic etc.
Mount the coupling correcty
with the help of a face mould.
Change the o-rings with high
permeable o-rings.
Check the installation load.
support the connection points
and streng then the pump plate.
Shaft can be worned.
Service
Service
Service
Service
Service
Service
Service
Service
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Service
Service
Service
Service
User
Service
Service
Service
Service
Plumber
Elektrican
Service
Service
Service
Service
Pump can be runned dry.
Change the seal.
Change the shaft.
Change the friction surfaces
and control the pump against
pollution
Close and open the suction line
valve rapidly during running.