Dover PSG MOUVEX A65 Installation Fonctionnement et entretien - Page 18
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PROBLEM
THE PUMP
WILL NOT
START
Electric power supply failure.
When the pump has not been used for a long
period of time, the boss of the wheel has not
been dipped in the lubricant.
As it has not been lubricated, it causes a lot of
resistance on start up.
Sediments or other substances have built up
inside the hose and are blocking the pump.
WEAK FLOW
The inlet or discharge valve is partially closed.
Air is entering the inlet piping.
The pumped liquid is too viscous.
Significant pressure drop at inlet.
The pump hose is damaged.
TEMPERATURE
The lubricant is not suitable.
TOO HIGH
The lubricant is dirty or too old.
Temperature of the pumped fluid is too high.
Pump speed too high.
HOSE LIFE TOO
Lubricant is not suitable.
SHORT
Chemical incompatibility between the hose and
the pumped fluid.
Temperature of pumped fluid too high.
The discharge pressure is too high.
Pump speed is too high.
THE HOSE IS
The pumped fluid contains impurities or
PULLED INTO
sediments.
THE PUMP
Clamp 9 is not sufficiently tightened.
BODY AT INLET
NT 1101-J00 08.10 A65 - AS65 e
7. TROUBLESHOOTING
POSSIBLE CAUSE
18
SOLUTION
Check the connections :
There must be 3 phases
x
The connections are suitable for the voltage
x
(delta-star)
If possible, check the parameters for the different
x
motor frequencies (starting torque, power input...)
Operate the pump intermittently to try to free the wheel
but do not be too insistent to prevent the reduction
gear from being damaged.
If the wheel remains stuck, contact your local dealer for
instructions.
Reverse the pump rotation direction or disassemble
the hose.
If the wheel remains stuck, contact your local dealer for
instructions.
Open the inlet or discharge valve.
Check the inlet line.
Check the inlet line
(see § 2.4 PIPE DIAMETERS).
Replace the hose (see § 4.1 REPLACING THE HOSE).
Empty the pump body and replace the lubricant with
one that is recommended by MOUVEX.
Empty the pump body and replace the lubricant with a
new MOUVEX lubricant.
Check the maximum fluid temperature allowed for the
hose material.
Reduce speed.
Empty the pump body and replace the lubricant with
one that is recommended by MOUVEX.
Check the compatibility of the hose with the fluid and
replace the hose with another one made of suitable
material.
Check the maximum temperature permitted for the
hose.
Check the maximum pressure allowed for the pump.
Reduce pressure drop at discharge.
Reduce speed.
Reverse the pump rotation direction and use the upper
port for inlet.
Retighten the clamp.