SWISCO - The Replacement Hardware Authority

What is the purpose of this reel on the 80-054?

A quick learner from macomb says:
I received the pella trolley and opened the box. the trolley is the one I needed but it included a gray square reel? attached to one end of the sping.

I did not noticed that when I took apart the one I have...It may be possable it broke and the previous owners took it off...I am not sure where it goes.

Lynn
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Tom from SWISCO responded:
Thank you for posting, Lynn. I believe that that gray piece is a spring tension adjuster. You would install it in the end of the track after the trolley is in, making sure that the adjustment screw is facing down. I hope this information helps.
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