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Published on May 2, 2017
For those interested in what it takes to replace the rear seal on the pump used by Harvest Right (JB Industries - Eliminator series DV-6E), it can be done if you have some tools and mechanical ability.
My vacuum pump started leaking oil out the rear seal a month or so ago. I talked with Harvest Right and they said they would replace the seal (no charge) but I asked if they would just send the parts so I could do a video for our YouTube channel. They agreed to send the parts at no charge.
I also ordered a spare pump so I would have one to use while repairing the first one. It's always nice to have a spare. This video is kind of long but I know some people will be interested. Feel free to skip around. Since I shot this video I've completed 4 batches and the pump does not leak.
Anyway, if your pump is under warranty I recommend you just send it back for repair. One thing I ran into was that the bolts holding the motor had too high a rating of thread locker, and one of the bolts broke while trying to take it off.
Also, Harvest Right told me that new pumps shipping with their freeze dryers now have the stainless steel splash guard already installed, so be sure to check your pump before ordering that item. If you need one, I bought my stainless steel splash guard and bolts from frozenright.com. Cost was $20 including shipping.