ITT Goulds Pump 3355, Инструкция по установке, эксплуатации и обслуживанию

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Symptom Cause Remedy
When you adjust the speed (frequency
transformer), check the reference value
setting.
The inner components are suffering
from wear. Replace the worn parts.
The forces in the pipeline are too high
and the pump is under strain. Change the position of the support pipes
and use compensators.
Check that the foundation plate and
frame are properly cast and in place.
There is either too much, too little, or
the wrong type of lubricant. Change the lubricant.
The electrical supply is not correct. Check the voltage of all phases (2-phase
running).
Check the cable connections.
Check the fuses.
There is not enough sealing. Tighten the screws.
Replace the mechanical seal.
The bearing is damaged. Replace the bearing.
Check the lubricant and bearing space
for pollutants. Rinse the oil area.
There is not enough hydraulic thrust
balance. Clean the relief holes in the impeller.
Replace the worn impeller and wear
rings.
There is system-related vibration (res-
onance). Seek assistance.
The pump is leaking. There is not enough sealing. Tighten the screws.
Replace the mechanical seal.
The discharge pressure is too high. Reduce the amount of pressure that is
carried. Throttle the control valve.
There are leaks at the shaft seal. The shaft seal is worn. Replace the mechanical seal.
Check the sealing, flushing, and cooling
pipes (pressure).
Do not run the pump dry.
There are deposits on the mechanical
seal. Clean the mechanical seal.
Replace the mechanical seal if necessa-
ry.
Provide additional rinsing or quench if
necessary.
The impeller is out of balance. Remove any blocks or deposits.
Replace the impeller is it is broken or un-
evenly worn.
Check the shafts to make sure that they
are running true.
The coupling is not aligned. Align the pump.
The coupling distance is too small. Correct this.
Forces in the pipeline are too high and
the pump unit is under strain. Change the position of the support pipes
and use compensators.
Check that the foundation plate and
frame are properly cast and in place.
There is not enough sealing. Tighten the screws.
7.2 Operation troubleshooting
Model 3355 Installation, Operation, and Maintenance Manual 65