30
09
Troubleshooting
Manual 4804 Rev C p/n 004804 0000
SYMPTOM PROBABLE CAUSE REMEDIES
Excessive vibration
Coupling misaligned Align.
Pump not properly
anchored
Anchor.
See excessive noise Check inlet pressure and gas À ow.
Motor overloaded
Excessive back
pressure
Reduce height of pump discharge.
Too much sealant
liquid
See Table 3-1 on page 11 for proper À ow rate.
Misalignment Realign motor and pump.
Defective bearing Replace bearing.
Abnormal bearing wear
Misaligned pump
assembly
Impeller binding or will
not turn
Accumulation of rust or
scale
See Operation on page 14 and Maintenance on
page 17.
Foreign object in pump Dismantle pump and remove foreign object.