DON_008_4892

7. First, slide the nut over one end of the hose followed by the ferrule. Then push the air line over the fitting on the main body of the union until it bottoms out. Pull the nut down over the ferrule and tighten with a wrench. Then repeat on the other end. Since the fitting seals on the inside between the ferrule and the hose, no thread sealant is required.
9. Since this large diameter fitting will now reside in a tray full of polymer air lines, it is important to cover it so that the brass union will not rub against the other air lines and cause additional leaks.

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