JB Vacuum Pump - Complete Teardown and Maintenance
Posted by Ken Bandoly on Aug 28th 2020
In this video, I demonstrate how to perform a complete teardown of a JB Eliminator series 2 stage vacuum pump.
***CAUTION*** Performing the actions in this video will most likely void any warranty on your pump. Performing this level of maintenance on your pump is your choice and you assume all risks and liabilities. We take no responsibility for your actions and decisions.
Even after doing this many times myself, even I do not always get it right the first try. If your pump rotates but is not pulling a deep vacuum after you've put it back together, You most likely have a fin that is still sticking. Most of the time, this is simply due to the torque on the bolts or the way the fin was seated during reassembly. Just drain the fresh oil into a clean container (so you can put it back later) and take it back apart and try again. IT DOES NOT mean you broke it. This is normal... it happens. It is just a part of pump maintenance and perhaps why JB officially does not support opening the cartridge and exposing the fins. Unfortunately, that's a rather expensive component and is usually where we need to perform maintenance; when things get really bad.
If I find some time, I may come back and add written step by step instructions on how I do this. For now, please just enjoy the video. Also, be sure to give us a like and subscribe to our YouTube channel, so you don't miss future videos.