sash vs. dyad crank

Return to the 39-188 product page.
This discussion is in regards to the SWISCO product:
product thumbnail of 39-18839-188 : Sash Dyad Crank, 5"
Right handed, dyad sash crank operator with a 5" arm, 5" hole centers, rear mount, 8-32 thread, for casement vinyl windows.
A quick learner says:
date: 06-04-09
What is the difference between the sash crank and the dyad crank other than cost? (pt.39-090 vs. 39-188)
Paul from SWISCO.com responded:
date: 06-05-09
Good question. The 39-090 and the 39-188 are very similar window sash crank operators. Take a look at the picture in this post for an alternative view of both operators. In the images below you will see that 39-090 has a longer forearm than the 39-188.
Back view displaying forearm length of the 39-090 sash crank operator.
Back view displaying forearm length of the 39-188 sash crank operator.
A quick learner from new york says:
date: 06-25-09
what is the length on the forearm on the 39-188 sash dyad crank 5"?
Paul from SWISCO.com responded:
date: 06-25-09
The length of the forearm of the 39-188 crank operator is 3-5/8".
Photo of the 39-188 with the 3-5/8" forearm.
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