Leybold Vacuum Pump TRIVAC D 40 B 112 96

Ensure the oil level is between the marks on the oil-level glass

Check if the oil needs to be changed

Select the type of oil used for refill

Refill oil only after the pump has been switched off

3.1.1 Checking the Condition of N 62 or HE 200 Oil

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 if defective

Ensure all necessary safety precautions are taken if the operating agent may present a hazard due to decomposition of the oil or the media pumped.

Switch off the pump and ensure it is still warm before proceeding.

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).

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

Switch off the pump and disconnect from the mains to ensure it cannot run inadvertently.

Check for deposits and clean as required

Use a brush to clean the deposits.

Use an industrial vacuum cleaner to remove any remaining debris.