How to diagnose bearing failure on an Edwards GXS / iH dry vacuum pump
Rising vibration with a bearing temperature increase means bearing wear. Log baseline readings, plan a bearing change at the next outage, and do not run past the high-temperature alarm.
~45 min7 steps
How to fix an exhaust restriction on an Edwards GXS / iH dry vacuum pump
Exhaust backpressure above the design limit forces the pump to work harder and reduces vacuum depth. Locate and remove the restriction in the exhaust train.
~30 min7 steps
How to diagnose a motor overload fault on an Edwards GXS / iH dry vacuum pump
Motor overload on a dry pump means mechanical resistance has increased. Check for solid polymer deposits inside the pump body before attempting a restart.
~45 min8 steps