Leybold Vacuum Pump SP250 115 005

Ensure the pump is at standstill before cleaning the oil cooler

Check the oil cooler for dirt accumulation

Protect the pump from being switched on and separate it from the vacuum system

Wear protective goggles when using compressed air

Perform a visual inspection by removing one of the cover sections

Clean the oil cooler with an industrial vacuum cleaner

Disassemble the cooler if dirt is highly adhesive

Observe safety regulations from Chapter 3

3.6 Table/Maintenance and Servicing Work ScrewLine SP 250

Verify if the pump is fitted with the optional exhaust silencer with condensate drain (P/N 119 002)

Ensure the pump and oil have cooled down below 70 °C

Is the oil level between the maximum and minimum mark with the pump at standstill?

Does the oil level drop to the minimum mark during pump operation?

Top up oil if the level drops to the minimum mark during operation

Check the oil level at the oil sight glass, ensuring the oil level itself is decisive, not the upper edge of the float

Perform function test on non-return valve

Replace O-rings on non-return valve

Refer to Brief Instructions KA02486

Check required spare parts for non-return valve

Is the pump fitted with the optional non-return valve (P/N 119 011)?

Replace O-rings on Ruvac adapter

3.3 Draining Out Condensate (optional)

Separate the pump from the process by a valve

Check the optional silencer (P/N 119 002) for condensate collection

Is there liquid collected in the silencer?

Drain liquid from the silencer through the condensate drain