Bob from SWISCO responded:
December 6, 2019
Thanks for posting. This operator looks like our 39-171 and 39-172. Now, this pair has link arms that are 5" long, whereas yours are 4-1/2". You will have to reuse your old link arms. This can be done by drilling out the new and old arms, then installing the old arm on the new operator using our 62-014 rivet. To install this rivet, you'll have to hammer it in; I recommend doing it over a metal plate, if you have one. Let me know if you have any questions on this project. |