Leybold Vacuum Pump TRIVAC D 40 B 113 47

Switch off the pump and ensure it cannot run inadvertently (disconnect from the mains)

Check for deposits and clean as required

Use brush and industrial vacuum cleaner for cleaning

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

Visually inspect the oil quality

Is an oil change required based on visual inspection?

Enter the neutralisation number according to DIN 51558

Is an oil change required based on chemical analysis?

Enter the dynamic viscosity at 25 °C

Is an oil change required based on mechanical analysis?

Refer to Section 3.8.1 for disposal of waste oil

3.4 Removing and Fitting the Internal Demister

Ensure all required tools and spare parts are available

Shutdown the pump and drain the oil

Remove the six recessed screws on the oil case

Pull the oil case forward off the pump

Lift off the frame and remove the internal demister

Clean all parts and check their condition

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

Check if the dirt trap is defective

Replace the dirt trap if defective

Ensure the cleaning agent complies with national/international specifications

Observe safety regulations when using cleaning agents