Bifold door rides bumpy

A quick learner from USA says:
April 4, 2024
I am trying to show how loose the pin is in the door.
The bottom pivot seems tight
The plastic wheels in the top track seem very loose
I'm not sure if the tracks are damaged ?
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Paul from SWISCO responded:
April 4, 2024

Thank you for writing in. If you haven't already, you might want to try and adjust the bottom door pivot to raise the door up a little. This could smooth out the door travel. If that doesn't help, your bottom track might indeed be damaged and need to be replaced. See the tracks I have listed on this page; review their dimensions and see if any match what you have. You also might want to check the door pivots and roll guides as well--see again the potential replacements we have listed for you. Let me know if you have further questions. 
Roll Guide
Roll Guide
21-174
$1.20
24" Low Profile Track Assembly
24" Low Profile Track Assembly
21-450
$9.45
36" Low Profile Track Assembly
36" Low Profile Track Assembly
21-452
$11.25
72" Low Profile Track Assembly
72" Low Profile Track Assembly
21-455
$21.99
Spring Loaded Top Pivot
Spring Loaded Top Pivot
23-112
$1.95
Bi-fold Bottom Door Pivot
Bi-fold Bottom Door Pivot
23-113
$2.44
Bi-fold Door Repairs
Bi-fold Door Repairs
GUIDE
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