REPLACEMENT OF ROLLERS ON MYSTERY SCREEN DOOR

A handy person from Frostproof, FL says:
SD4: Overall view SD3: Removed plastic corner clip SD2: Removed broken roller unit

SD5: Typical of three corners, doorframe appears to be one solid assembly made of 4 extrusions mitered, then bent to make the frame.

Only one corner (SD1) has a break. How do I take this apart at SD1 - I don't want to break it?

I assume once the SD1 corner is apart, the others will then "unfold".

I need to replace all four rollers - what is this part, where to get it?

A "professional' shop could not take it apart. They broke one plastic corner clip trying.

Help!
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Dave Sr. from SWISCO responded:

Hello there. Looking at your photos you might have the type of patio screen door that has the corners folded into each other. Not sure if you can take these type doors apart. As for the wheel the only one I could come close to yours was the 84-063, but I'm not sure that will work. Unfortunately if a professional couldn't even take the door apart, it might be best to order a complete new patio screen door.

A handy person from Frostproof, FL says:
Got the door apart and the rollers out, it was actually simple. Now my hunt for the rollers. Attached are pictures of the one good roller.
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A handy person from Frostproof, FL says:
I sent a post earlier today showing the existing adjustable roller. The door is Betterbuilt, installed in 1997. The whole plastic insert serves no structural purpose for the corner; it is a folded frame except in the one open corner and there it provides anchorage for two screws to join the open frame. Can I just install your part 84-008M and trim one of my plastic inserts to provide anchorage at the open corner?
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Dave Sr. from SWISCO responded:

The 84-00M roller needs to be adjusted from the top of the wheel using an adjustment screw like the 84-502. You would need to adapt something like the 84-071 roller, but you will need to take a look at it to see if you can adapt it to your door. To be perfectly frank with you, I'm not optimistic. I think you should start considering the possibility of getting a new screen door.

84-008M : Screen Door Roller, Steel Ball Bearing Wheel
Screen Door Roller, Steel Ball Bearing Wheel
84-008M
$2.86
VIEW >
84-071 : Sliding Patio Screen Door Roller Assembly, Steel BB
Sliding Patio Screen Door Roller Assembly, Steel BB
84-071
$3.07
VIEW >
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