Replacement window operators and lubricant

Home Owner from Bayonne, NJ

Nov 4, 2024 10:31 am

Hello. I need to replace a pair of casement window crank operators. I don't know the manufacturer, but they are from the 1990s. Both are cracked in the same place and interfere with opening and closing. Another pair of crank operators isn't broken but have become harder to open/close over time. Is there a special lubricant I can use to make them work more smoothly?

2 user uploaded images

5 Replies

Casey from SWISCO

Nov 6, 2024 3:28 pm

Hello,

Your damaged operator resembles the 39-187 Dyad Operator. We also offer the opposite-handed version, the 39-188. Review the dimensions to confirm it's a match. For a new handle, see the 39-114L sold separately. Thanks for posting!

Dimensions for 39-187

Home Owner from Bayonne, NJ

Nov 7, 2024 7:40 pm

Thanks, Casey. That looks like a match, but I measured the arm, and it's longer, at around 9 in. I see 39-067 may be the part I need for one side, but unfortunately the part for the other side, 39-066, appears to be discontinued.

Casey from SWISCO

Nov 8, 2024 8:35 am

Good catch! I agree that if the dimensions match, the 39-067 would be the style you have. As you noted, the opposite-handed version has already been discontinued. Our best workaround would be to see if you could use the 39-187 base with your original longer link arm. If so, you'd need to drill out the rivet that attaches the 39-187 link arm to the base and attach the original link arm using the 62-014B rivet. We can't promise it would work but it would be our best recommendation. Please note that once parts are modified, they can't be returned. Look them over and see what you think.

Handy Person from Ohio

Jun 8, 2026 12:52 pm

Did this work!! Mind is broken and I need it fixed!