How to Install 21-058 Pin Cap

A handy person from USA says:
August 28, 2019
I'm repairing some old metal bi-fold doors for a customer. A cat urinated on the doors and bottom track for years and caused major rust damage. I had to add sheet metal and angle iron to the door bottom.

I'm hoping to replace the bottom track with 21-402, and pivot pin 21-002.

The upper track has pins similar to 21-058. Can you please explain how the plastic pin caps fit into the track? I can't tell if I must remove the track from the ceiling to slide them in/out from the ends, or if they snap in place.

Thanks for your help.
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Tom from SWISCO responded:
September 4, 2019

Thanks for posting! Our 21-108 guide slides out of the end of the track. You'll have to remove the track entirely to get those guides out. Hopefully that information helps.
Bifold Track, 5' Opening
Bifold Track, 5' Opening
21-402
$17.15
Bifold Door Pivot Pin, Benchmark
Bifold Door Pivot Pin, Benchmark
21-002
$4.20
Bifold Door Guide Pin, Leigh, Monarch
Bifold Door Guide Pin, Leigh, Monarch
21-058
$7.42
Bi-fold Door Repairs
Bi-fold Door Repairs
GUIDE
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