Vogt SSD Series, Service Manual, Page: 17 / 21

Useful Tips
Useful Tips
for trouble-free operation
8.5 Pump does not drive pulp or pumps out too little pulp
1 7
Possible Causes Solutions
1.- The impeller rotates
in the wrong direction.
2.- Rotational speed.
•
If it is a three-phase pump,
switch phases.
•
Check that the rotation speed is
not too low and verify that the
discharge height of the system is
not too high.
3 .- One or more valves are
in the wrong position.
• Re-establish the valves that
are in the wrong position.
•
Replace valves if necessary.
•
Check that all valves are
positioned correctly and in
accordance with the liquid flow
rate.
•
Check that all valves open
correctly.
4 .- It is difficult to turn the impeller by
hand.
• Clean the impeller.
•
Clean the sump.
5 .- The pipes are clogged. •
Clean the pipes so that the liquid
flows smoothly.
6 .- Pipes and joints leak fluid.
•
Look for leaks and seal them.
7.- There are signs of wear on the
impeller, pump and casing.
•
Replace worn parts.
8.- The liquid level is too low.
•
Check that the level sensor is
properly configured.
• Depending on the type of
installation, add some element to
prime the pump, such as a
bottom valve.