Searching for the same crank 39-187 but my arm is 4.50"

Question

I found the crank the only difference is my arm is 4.50" not 5" the screw locations match @ 5"

Casey · Accepted Answer

Hello,

I'm afraid we've never been able to find a version of this operator that has a 4-1/2" long link arm. The only solutions we've come up with are either moving the sash bracket 1/2" over to compensate for the difference or drilling out the link arm from both the new and old operators, then attach the old link arm to the new operator with a 62-014 rivet. Consider your options and see what you think.