Leybold Vacuum Pump TRIVAC D 40 B 103 46

Ensure all required tools and spare parts are available

Drain the oil (see Section 3.2)

Unscrew the four non-recessed hex. socket screws (11/5) and remove the motor (11/6)

Unscrew screw (12/2) and pull off the spring washer (12/3)

Ensure the pump is switched off and warm before changing the oil

Determine and ensure all necessary safety precautions are taken if the oil presents a hazard

Remove the oil-drain plug (9/4) and let the used oil drain into a suitable container

Screw the oil-drain plug back in, briefly switch on the pump (max. 10 s) and then switch it off again

Remove the oil-drain plug once more and drain out the remaining oil

Screw the oil-drain plug back in, check the gasket and reinstall a new one if necessary

Remove the oil-fill plug (9/1) and fill in with fresh oil

Screw the oil-fill plug (9/1) back in

3.7 Removing and Remounting the Pump Module

Ensure all required tools are available

Ensure all required spare parts are available

Drain the oil and remove the oil case (see Section 3.4)

Pull the entire pump module (13/2) forward off the tie rods (13/5)

Ensure individual pin-fitted parts are not loosened

Ensure all maintenance tasks are completed

Was the maintenance performed by the Leybold service?

Ensure the following precautions are taken

Remove the dirt trap from the intake port

Rinse the dirt trap in a suitable vessel with solvent

Thoroughly dry the dirt trap with compressed air

Replace the dirt trap with a new one if defective