Cause The pump contains traces of process vapours. The pump is outside the specied
range of operating
Remedy Run 12 hours with gas ballast
Cause The pump is outside the specied range of operating conditions.
Remedy Reduce inlet pressure or the process cycling is too aggressive
Cause The tip seals need replacing.
Remedy Replace the tip seal
Cause The pump is in standby mode.
Remedy Check the pump setup and switch off standby mode
Cause The motor shaft rotates in the wrong direction (3-Phase pump only)
Remedy Reconnect and change two wires between at unit connector
Fault Poor ultimate vacuum
Cause The pump is not running correctly.
Remedy Connect it correctly
Cause There is a pulse at the exhaust with the gas ballast set to zero: Pump is leaking.
Remedy Find the leak and rectify.
Cause There is no pulse at the exhaust with the gas ballast set to zero: Pump is not
leaking.
Remedy Change the tip seal
Fault The pump is noisy
Cause The inlet is open
Remedy Seal off inlet
Cause The gas ballast is open.
Remedy Set Gas ballast to (0) zero, if possible.
Cause Scroll clash.
Remedy Remove xed scr
oll, inspect scroll and clean.
Cause Bearing needs servicing.
Remedy Return the pump to Leybold.
Cause Contamination
Remedy Remove xed scr
oll, clean scroll and plenum chamber.
Cause Motor needs servicing.
Remedy Return the pump to us.
300668736_002_C7 - © Leybold 65
Fault nding
To Next Page
Loading...
