salmson MULTI VE Instalación E Instrucciones De Puesta En Marcha página 22

ENGLISH
Other defects, not detected by the converter, due to the pump.
Before any operation, switch off the pump(s).
If the liquid is toxic, corrosive or dangerous for human
being, SALMSON or the qualified person in charge of the
repairing must be informed. In this case, clean the pump to
ensure a complete safety to the repairing man.
INCIDENTS
8.1 THE PUMP a) The pump does not run quickly
IS RUNNING
BUT NO DELIVERY b) The pump is obstructed by foreign
c) Suction pipes are obstructed :
d) Air in suction pipes :
e) Suction pressure is too low, it
8.2 THE PUMP a) Loose on its foundation :
IS VIBRATING b) Particles obstructing the pump :
c) Difficult rotation of the pump :
8.3 NO SUFFICIENT a) The motor speed is not
PRESSURE
FOR THE PUMP b) The motor is defective :
c) Bad filling of the pump :
d) The drain-priming plug is not
8.4 THE FLOW a) The suction head (Ha) is not
IS IRREGULAR
b) The suction pipe has a lower dia-
c) The strainer and the suction pipe
CAUSES
enough :
matters :
causes generally cavitation noise :
high enough :
fully tightened :
respected :
meter than the one of the pump :
are partially obstructed :
a) Check the adequate adjustment of the requirement (conformity to the required
points).
b) Dismantle the pump, replace the defective components or clean.
c) Clean all the pipes.
d) Check tightness of the whole pipe up to the pump and make it tight.
e) Too high losses of load on suction or suction head is too high (check the NPSH of
the pump installed and of the installation).
a) Check and tighten completely the nuts of the stud bolts.
b) Have the pump dismantled and clean it.
c) Check the pump turns freely without abnormal sticking.
a) Check the reference is correctly adjusted (conformity of the reference points).
b) Replace it. motor/converter
c) Open the venting device and vent until there are no more air bubbles at all.
d) Check it and screw it again.
a) Study again the installation conditions and the recommendations described
in this instruction.
b) The suction pipe must have at least the same diameter as the suction pump
port.
c) Remove and clean.
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REMEDIES