Hurd casement window crank : SWISCO.com

Quick Learner

Nov 21, 2023 12:38 pm

Hi,

I need to replace the mechanism for a few window cranks for Hurd windows.

I'm adding photos of the cranks that need replacing.

Thanks,

Ela

2 user uploaded images

10 Replies

Casey from SWISCO

Nov 21, 2023 1:48 pm

Hello,

Your operator arms resemble the 39-388 and 39-387. Review the diagram below and see if the dimensions match your assembly. For a compatible crank handle, go with the 39-114L. Thank you!

Dimensions for 39-387

Quick Learner from NM

Dec 7, 2023 5:42 pm

The dimensions don't seem to fit. The current crank is 3.5/4 inches (total arm length of short and long arm).
Would this model still work?

Casey from SWISCO

Dec 8, 2023 8:06 am

I'm sorry for the confusion but I'm not quite sure what your dimensions are. Do you mean that the 3-1/2" link arm on our operator matches but the 4-3/4" base arm is only 4" on your part?

Quick Learner from NM

Dec 8, 2023 9:26 am

Yes

Casey from SWISCO

Dec 8, 2023 11:19 am

Just to confirm, are you measuring the base arm from the center to the gear to the rivet that attaches to the link arm as shown in our photo?

Dimensions for 39-387

Quick Learner from NM

Dec 8, 2023 12:19 pm

I had a hard time measuring it from the middle as the design is a bit different. The 4 inch was total length, not from the middle.

Casey from SWISCO

Dec 8, 2023 12:41 pm

The arm gears are mostly obstructed by the sill trim when the operator is installed. I would recommend removing the operator from the window to be sure that our dimensions match up to yours.

Quick Learner from NM

Dec 13, 2023 10:21 am

Do you have a suggestion for a different crank that might fit?

Casey from SWISCO

Dec 13, 2023 10:32 am

Based on what is shown in your photos and the information provided, the 39-387 and 39-388 would be our best replacement options. We would need to see your operator fully removed from the window and confirm your exact dimensions measured as shown in the images we've provided to determine if a closer match is available.