Truth (dyad operator?) replacement

Quick Learner from Seattle

Apr 18, 2026 5:52 pm

Markings: "Truth" on arm. "40986" on metal sash.
Handle snapped off crank mechanism, and I am looking to repair or replace the mechanism as needed. Highly preferable if you are able to assess parts without removal.

2 user uploaded images

2 Replies

Tom from SWISCO

Apr 22, 2026 12:54 pm

Your operator is similar in design to our 39-220B. This may be just what you want but review this product and let me know if you had any questions. We also sell the 39-452 separately.