Assembly according to the instructions. As soon as I connected the air it started splattering oil all over the various parts of the suitcase, most of which ended up on my new shirt (I didn't have a work apron on yet because I *didn't* use one when I connected the air ). I badly needed half of the dryer, so I took it apart and was able to use just that, and it works fine (but the wall mount is also the part that holds the dryer side to the oiler side, so I had Jerry piece together a way to attach it to mount on the wall).
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