Truth Blind Crank (Possibly Dyad?)

Quick Learner

Jun 18, 2026 10:24 am

The machine screws stripped from the blind mounting, so I guess I need to replace the whole crank assembly. I can't tell if it's a 39-188, 39-090 or somethig nentirely different.

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2 Replies

Emily from SWISCO

Jun 26, 2026 1:24 pm

Thank you very much for your patience during this busy season.

Based on the design of the arm, I recommend the 39-187. You'll want to review the specifications below and confirm they match your repair needs.

Please let us know if you have any questions.

Dimensions for 39-187