GEA TPS, Руководство по эксплуатации

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2016-12 · GEA Hilge Kreiselpumpe TPS, selbstansaugend / Centrifugal Pump TPS, selfpriming · Version B
Malfunction, Cause, Remedy
CAUTION
In the event of malfunctions, immediately deactivate the pump and secure it against inadvertent reactivation.
Defects may only be rectified by qualified personnel observing the safety instructions.
Malfunction Cause Remedy
Motor does not start No power supply to the motor Switch off the pump, check cable connecti-
ons and fuse
Motor circuit breaker has tripped Check the motor’s power consumption
M
otor circuit breaker or r.c.c.b. has tripped or
the fuses have blown, because cable, motor or
control devices are damaged
Measure the parts and repair or replace any
faulty parts
Switching device contacts faulty Check the switching devices, dismantle,
clean and
replace any faulty parts
Motor power consumption
too high Viscosity of the pumped medium too high Check the pump system, throttle as required,
turn off impeller, change pump or motor
Gap between housing and impeller not set
correctly Set gap
Resistance in the pressure pipe too low
(flow rate too high) Check the pump system, throttle as required,
turn off impeller, change pump or motor
Impeller diameter too big Fit a smaller impeller
Turn off the impeller
Too much noise
emission
(also cavitation) Resistance in the suction pipe too high Check the suction pipe, shorten or extend as
required
Liquid level in the suction tank too low Fill the suction tank
Impeller scraping Measure the axial gap and reset in accordance
with the chapter “Checking the axial gap”
Motor bearing damage Replace the bearing
Mechanical seal running dry Immediately switch off the pump, check the
mechanical seal, replace if required
Determine the cause of dry running and elimi-
nate the fault
Flow head or flow rate too
low Motor rotates in the wrong direction Reverse the phases
Motor speed too low (voltage, frequency not
correct); number of poles not correct Apply the correct voltage
Replace the motor
Impeller diameter too small Fit a larger impeller
Impeller worn Replace the impeller
Too much resistance in suction and/or pressu-
re pipe Check the pipes
Viscosity of the pumped medium too high Check the pump system, fit a larger impeller
Pump leaking Mechanical seal defective Replace the mechanical seal
O-ring defective Replace the O-ring
Pump not drawing in
liquid No residual liquid in the pump Fill the pump with a minimum of liquid
System not executed to specifications Execute the system in accordance with specifi-
cations on suction and pressure sides