almson Jetson Instalacion E Instrucciones página 10

ENGLISH
8 . OPER TING TROUBLE :
Switch the pump OFF before doing any work on it
TROUBLES
8.1 THE PUMP TURNS BUT NO a) The internal parts are obstructed by
DELIVERY
b) Suction pipe obstructed:
c)
d) The pump is empty:
e) The suction pressure is too low; this is
f) The pump turns the wrong way (three-
g) The supply voltage to the motor is too
h) The strainer isn't immersed:
8.2 THE PUMP VIBR TES a) Loose on its foundation:
b) Foreign bodies obstructing the pump:
c) Pump is hard to turn:
d) Incorrect electrical connection:
8.3 THE PUMP OVERHE TS a) Voltage too low:
b) Foreign bodies obstructing the pump:
c)
d)
8.4 THE MOTOR DOESN'T a) No current:
RUN b) Hydraulic part blocked:
c) Thermal sensor release (1-phase):
8.5 THE PUMP DELIVERS a) The motor fails to run at its normal
INSUFFICIENT PRESSURE
b) The motor is faulty:
c) The motor turns the wrong way (three-
d) Wearing of the internal elements:
8.6 THE MOTOR TRIPS OUT a) The setting of the thermal relay is too
b) The voltage is too low:
c) One phase is open-circuit:
d) The thermal relay of the circuit-breaker
e) The motor is faulty:
8.7 THE FLOW IS IRREGUL R a) The suction height (H ) is exceeded:
b) The diameter of the suction pipe is
c) The strainer and suction pipe are
C USES
foreign bodies:
ir leaks in via suction pipe:
generally accompanied by cavitation
noise:
phase motor):
low:
mbient temperature above +40°C:
ltitude > 1000 m:
speed (foreign bodies, defective
power supply, etc.):
phase motor):
low (three-phase motor):
is faulty:
smaller than that of the pump:
partially obstructed:
a) Dismantle the pump and clean it.
b) Clean all the pipes.
c) Check the tightness of the whole pipe, up to the pump, and make it tight.
d) Fill the pump in to prime it again.
e) Loss of head on suction or suction height too great.
f) Interchange two phase wires on the motor terminal block or circuit-breaker to reverse
the direction of rotation.
g) Check the voltage on the terminals of the motor and the cross-sections of the
conductors.
h) Immerse the strainer (mini 20 cm). Ballast the flexible pipe if necessary.
a) Check the nuts of the stud bolts and tighten them fully.
b) Dismantle the pump and clean it.
c) Check that the pump turns freely without abnormal sticking.
d) Check the connections to the pump.
a) Check the voltage on the terminals of the motor; it should be within ± 6 % in 50 Hz and
60 Hz.
b) Dismantle the pump and clean it.
c) The motor is designed to operate at an ambient temperature of not more than +40°C.
d) Motor is planed to operate t an altitude ≤ 1000 m.
a) Check the electrical power.
b) Clean the pump.
c) Let motor cool down.
a) Dismantle the pump and correct the problem.
b) Replace it.
c) Interchange two phase wires on the motor terminal block or on the circuit-breaker to
reverse the direction of rotation.
d) Replace them.
a) Check the current with an ammeter, or set to the current rating marked on the motor
data plate.
b) Check that the conductor cross-sections of the power cable are adequate.
c) Check it and, if necessary, replace the power cable.
d) Replace it.
e) Replace it.
a) Reread the installation conditions and recommendations in this data sheet.
b) The suction pipe must have the same diameter as the pump suction port.
c) Remove and clean.
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REMEDIES