Leybold Vacuum Pump TRIVAC S 40 B 103 45

3.5 Disassembly and Reassembly of the Electric Motor

Ensure the motor is disconnected from the mains and prevent the pump from running up

Disconnect the mains connection

Unscrew the four non-recessed hex. socket screws (11/5)

Remove the intermediate flange (11/4) together with the electric motor

Ensure the check is run by Leybold service

Switch off the pump and disconnect from the mains to prevent inadvertent startup

Check for deposits and clean as required

Use brush and industrial vacuum cleaner for cleaning

Was the pump or motor cleaned before the maintenance interval due to overheating?

3.4 Removing and Fitting the Internal Demister

Shutdown the pump and drain the oil

Remove the six recessed screws on the oil case

Pull the oil case forward off the pump

Remove small washer, spring, large washer, and O-ring

Lift off the frame and remove the internal demister

Clean all parts and check their condition

Store the pump in a dry place at room temperature (20 °C)

Properly disconnect the pump from the vacuum system

Purge the pump with dry nitrogen

Seal the inlets and outlets with shipping seals

Set the gas ballast switch to the '0' position

Seal the pump in a PE bag with desiccant if stored for a long period

Run standard maintenance if the pump has been shelved for over one year