Hydramatic - model S2
If you want to be able to lift the left side and the right side of the roof separately or at the same time, the choice can be made by opening or closing a 2-times 2-way ball valve.
This configuration ensures for the roof to rise simultaneously front and back on one side. If you lift both sides of the roof at the same time the left and the right side will not necessarily rise at the same time, the lifts will rise side by side.
For a shorter body S2 or S3 are advisable applications.
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