Hello,
I am at my wits end with my bifold doors from the 70s.
I bought these replacements parts, hoping they would solve the problem, but even though everything fits, the door is still grinding on the track instead of gliding.
Is there something I am doing wrong? Attached are photos of the bottom pivot and the bottom guide pin. Along with a photo of how the door sits right on the track. It grinds and makes an awful sound when we try to use the door. Is there another part I neglected to buy?
I feel like I must he missing something simple.
Any help would be appreciated.
Bi-fold Door Parts

Home Owner from USA
Apr 29, 2021 11:35 am
3 user uploaded images
2 Replies

Paul from SWISCO
May 4, 2021 12:18 pm


I recommend that you reverse your pins. The threaded 21-001 goes in the bottom corner of the door into the pivot bracket of the track. You want to loosen the 21-154 rod clamp and turn the threaded pin to raise and square up the door, then tighten the 21-154 rod clamp. The spring loaded 21-007 guide pin is used to guide the door along the track as you open and close the door. Hopefully this information helps.
Related Products
Related Videos
Related Guides