Balancing door after installing 81-265

A quick learner says:

I replaced three Swisco plastic rollers part # 81-265. After re-installing the patio glass door, one side is slightly higher than the other and it's difficult to lock the door now. There are no adjustment screws.

What can I do to make the door balanced?


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Paul from SWISCO responded:
The roller assembly may not be adjustable, but there must be something on the door itself that could square it up. If you can't find it, you can send some photos of your door from different angles and we can work from there.
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