Frontier sickle bar mower parts question

   / Frontier sickle bar mower parts question #1  

vagent227

New member
Joined
May 29, 2020
Messages
4
Tractor
John Deere 5520
While recently greasing my frontier 7 foot sickle bar mower, I noticed that three parts were missing from the hinge assembly. They are indicated on the attachments and are numbers 26, 27, and 28. The main part, #26, is named as a conic pin FB.

I bought the mower new in 2007; I do not know if the parts were not there as of day 1 or if they came loose sometime within the 12 years of use. The mower is sporadically used in the spring and fall to clean around a pond and a hillside where it is impractical to use a bush hog.

The mower seems to cut well and does not seem to be affected by the absence of the parts.

So I have two questions: 1) what function do these parts provide and 2) will the mower be eventually harmed if I do not replace the parts?

Any guidance would be appreciated.
 

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