Why is the bag on my Dust Cobra being sucked up into the cyclone?

If there are air leaks in the drum:

1. Confirm the lid of the dust drum is in place and is well seated when operating.
2. Check for any damage on the foam seal of the lid.
3. Check that the drum lid clamp is tight.
4. Check for holes or leaks in the dust drum.

If Clear Vinyl Tubing (F17) is not attached properly:

1. Make sure there is no clog, kink, or damage in the vinyl tubing.
2. Make sure the vinyl tubing is pushed all the way onto both fittings so it is firm and tight.
3. Make sure all connections to the Quick Disconnect Kit (I) are tight.
4. Make certain that the Round Tapered Plug (F35) is not installed in the quick disconnect kit.