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Tom from SWISCO responded:
May 22, 2017
Thanks for posting. There are three things I note about your old operator. The first is that the gear arm does share the same design as the 39-090, not the 39-188. It's a subtle difference, but basically the 39-090 gear arm has a "Z" shape while the 39-188 has a "W" shape.
The second is that your gear arm also has an offset, while the 39-090 does not. I don't know if this will affect the function. Did you find the 39-188 installed fine despite there being no offset? If so, then we can ignore it for now. The third is the size of the link arm. Yours is far shorter than either that come with our 39-090 and 39-188. You would need to drill off both arms, and then swap them. You can install the old arm on the new operator with our 62-014 rivet. |
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Dave Sr. from SWISCO responded:
May 25, 2017
Yes, you would drill out the rivet connecting the gear arm to the link arm. You could use a good, sharp 3/16" drill bit. What I normally do is to grind off the rivet with a bench grinder. Take note to mark which way the arms relate to each other. I then lay the arms with the rivet on top of a flat piece of steel and use a hammer to pin the new rivet in place.
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