Troubleshooting
76 GA02411_002_C0 - 10/2016 - © Leybold
Malfunction Possible cause Remedy Responsibility
Pump gets hot-
ter than pre-
viously observed.
Cooling airflow is obstructed.
Ambient temperature is too high.
Process gas is too hot.
Deviation from the nominal mains voltage.
Exhaust pressure is too high.
Contaminated oil cooler.
Insufficient cooling water supply.
Calcified cooling water lines
Install the pump properly.
Install the pump properly (< 40 °C).
Change process, cool if required.
Check motor connection voltage and mains
voltage.
Optimise the cross-section of the discharge
line.
Clean the oil cooler with compressed air.
Ensure sufficient cooling water supply.
Decalcify cooling water lines.
Clean water filter.
Run maintenance on heat exchanger.
Electrician
Pump is
extremely loud.
Bearing damage.
Thick particle deposits.
Defective silencer.
High gas throughput with the discharge line
open, without silencer.
Repair pump.
Clean pump, respectively perform mainte-
nance.
Repair silencer.
Install discharge line or silencer.
Service
Service or
trained staff
Oil film in the
junction box.
Oil ingress after longer operation. No need for action.
Purge gas
gauge does not
indi cate any
pressure.
Valve has not switched.
Purge gas supply has failed.
Check valve, if required connect correctly.
Ensure a proper purge gas supply.
Electrician
To Next Page
Loading...
