help with removing daryl products patiorama sliding door

A home owner from USA says:
I have an old patio door and I am trying to remove to check the health of the wheels. However, I cannot get it to come out of the track, and I cannot find a way to lower the wheels. Can you help? I enclose a picture of the end of the door
User submitted image of their door hardware.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting! I think we can help, yes. See the video below and let me know if this helps.
A quick learner says:
Thanks for the video. My problem was the adjustment screws were deeply embedded inside the door and I could not see the heads. As it turns out, one was a hex head and the other a slotted (55 year old door). I got it off and inspected.
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