How to replace the oil and filter in your Leybold oil sealed rotary vane pump, LB 40/65/100

May 24, 2024

Leybold rotary vane vacuum pump oil and filter change

Regular minor maintenance on your vacuum pump keeps it performing efficiently and effectively. In this blog we will walk you through how to: drain the oil, clean the oil tank, clean the inlet port, clean the cooling system, perform a decoupling check, and how to reassemble your pump so that it is ready for use.

For more information on maintenance and safety guidelines for our LB 40/65/100 pump, please see the 2031018375-instruction manual.

Before beginning vacuum pump service

Before beginning service on your vacuum pump remember to switch off the power supply to the pump system. Once turned off, leave the pump to cool to a safe temperature. This usually takes around 1 hour.

For this service you will need:

Tools:

1. Strap wrench

2. Masking tape

3. 32mm spanner

4. .12mm spanner

5. 10mm spanner

6. An allen key set

Spare Part Kit Name	LB 40	LB 65	LB 100

Sealing Kit	2031001425	2031002425	2031002425
Filter Kit	2031002429	2031002429	2031002429
Float Valve Kit	2031002087	2031002087	2031002087

Proceed for more support and the full service video

Unlock valuable insights about our product by filling out our quick and easy form. Gain instant access to vacuum pump service recommendations and a step-by-step process of how to maintain your vacuum pump.

First Name *

Last Name *

Company

Country

Phone ✔︎ Valid Invalid number Invalid country code Too short Too long

Email *

Do you already have all the required parts and tools? Please answer "yes" or "no". *

By submitting this request, Leybold will be able to contact you through the collected information. More information can be found in our privacy policy.

I have read and accepted the privacy policy