salmson GET Instalacion Y Puesta En Servicio página 13

ENGLISH
8. OPERATING TROUBLES
Switch the pumps OFF before doing any
ATTENTION !
work on it.
TROUBLE
8.1 THE PUMP DOES
a) The internal parts are obstructed by
NOT FLOW. foreign bodies:
b) Suction pipe obstructed:
c) Air leaks in via suction pipe:
d) Discharge valve closed:
e) The suction pressure is too low; this is
generally accompanied by cavitation
noise:
f) The pump turns the wrong way:
g) The supply voltage to the motor is too
low:
8.2 THE PUMP a) Loose on its foundation:
VIBRATES.
b) Foreign bodies obstructed the pump:
8.3 THE MOTOR
a) Pump is hard to turn:
OVERHEATS b) Voltage too low:
c) Foreign bodies:
8.4 THE PUMP a) The pump was improperly sized:
DELIVERS b) The motor fails to run at its normal
INSUFFICIENT
speed (foreign bodies, defective power
PRESSURE
supply, axial misalignment):
c) The motor is "burst":
d) Pump poorly filled:
e) The pump turns the wrong way:
f) Conveyed products (thermal fluid)
more viscous than expected:
8.5 THE PROTECTION
a) The setting of the relay is to low:
THERMAL RELAY
TRIPS OUT
b) The voltage is too low:
c) One phase is open-cicuit:
d) The thermal relay is faulty:
8.6 THE FLOW IS
a) The suction height is exceeded:
IRREGULAR
b) The diameter of the suction pipe is
smaller than that of the pump:
c) The strainer and the suction pipe are
partially obstructed:
CAUSE
a) Dismantle the pump and clean it.
b) Clean the pipe.
c) Check the tightness.
d) Check and open.
e) Loss of head on suction or suction height too great.
(consult us).
f) Reverse the direction of rotation by reversing two wires on the motor
terminal block.
g) Check the voltage on the terminals of the motor and the cross-sections of
the conductors.
a) Screw it on.
b) Dismantle the pump and clean it.
a) Check that the manual rotation is possible.
b) Check the voltage on the terminals of the motor; it should be within + or -
5%of the rated voltage.
c) Dismantle the pump and clean it.
a) Remedy to it.
b) Dismantle the pump and correct the problem.
c) Replace it.
d) Bleed.
e) Reverse the direction of rotation by reversing two wires on the motor
terminal block.
f) Contact our Salmson agency.
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 (see table).
c) Check it and , if necessary, replace the power cable.
d) Replace it.
a) Reread the installation conditions and recommendations.
b) Reread the installation conditions and recommendations.
c) Remove and clean.
9
REMEDIES