First, be sure that you are adjusting the correct bolts. It is easy to get the front-lift bolts confused with the rear-lift bolts. Each shell has four adjustment bolts. Two are near the corners of the trailer, and two are closer to the center.
If you want to adjust the front shell, for example, you would first raise the front shell (don't adjust while the shell is down), then follow each of the white rectangular lift arms to its bottom end, follow the black round torsion bar under the trailer to the opposite side, and follow the stub of the torsion bar into its cage. Now you know which bolt to adjust. Adjust all four of them the same amount, at least in the beginning.
2. Has anything weighty been added to the shell, inside or out? Something light, like another vent fan should be OK, but a solar panel or two would make it hard to lift.
Bill
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