Gianneschi MVG - Noise Issues; Pumping Element Wear; Suggested Spare Parts; Exploded Drawing and Spare Parts List

13
Rotor is worn.
Replace rotor.
Suction lift too big,
Reduce pipe loss by increasing the diameter
of the suction pipe work. Move the suction
port closer to the liquid level.
8.4
Pump is noising
Causes
Remedies
Worn stator
Replace the stator
Worn rotor.
Replace the rotor.
Worn joint.
Replace the joint.
Air present in the pipe work.
Increase liquid level on the suction side.
8.5
Pumping elements wear
Causes
Remedies
Too high pressure.
Use a pressure gauge to check the system
pressure and reduce the pressure.
The liquid temperature is too high.
Reduce liquid temperature.
In a case this is not possible, contact our
technical personnel.
Liquid pumped is clogging the inside of the
Open and clean the pump every time you
pump.
stop it.
Pump is running dry.
Fill up the pump first time you use it.
Install a dry run protective device.
9
Suggested spare parts.
All spare parts are usually available in our warehouse. In particular case, when a delivery
time, even if brief, cannot be accepted we suggest to provide a small supply of spare parts
for each pump.
-
Stator
-
Mechanical seal
-
Universal joints
-
Rotor
-
Brushes (for direct current motor)
In order to identify properly the components please use the attached exploded drawings.
10
Exploded drawing and spare parts list.
When ordering spare parts please specify: quantity, designation, position number of
each spare part in accordance with exploded drawing, type and serial number
stamped on rating plate.