English (GB)
29
17. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
4. Leaking pump,
connections or
mechanical shaft
seal.
a) Pump stressed by pipework
(thus causing leaks in pump
housing or at connections).
Mount the pump so that it is not stressed.
Support the pipes.
b) Pump housing gaskets and
gaskets at connections
defective.
Replace pump housing gaskets or gaskets at
connections.
c) Mechanical shaft seal dirty
or stuck together.
Check and clean the mechanical shaft seal.
d) Mechanical shaft seal
defective.
Replace the mechanical shaft seal.
e) Shaft surface defective. Replace the shaft.
5. Too high
temperature in
pump or motor.
a) Air in suction pipe or pump. Vent the suction pipe or the pump and replenish.
b) Inlet pressure too low. Increase the liquid level on the suction side. Open
the isolating valve in the suction pipe. Make sure
that all the conditions in section 8.6 Pipework are
complied with.
c) Bearings lubricated with too
little, too much or unsuitable
lubricant.
Replenish, reduce or replace the lubricant.
d) Axial pressure too high. Check the relief holes of the impeller and the lock
rings on the suction side.
e) Motor-protective circuit
breaker defective or setting
incorrect.
Check the setting of the motor-protective circuit
breaker and replace, if necessary.
f) Motor overloaded. Reduce the flow rate.
Fault Cause Remedy
To Next Page
Loading...
