Replacement crank

Question

This is pictures I have of a Truth Mechanical crank wooden window opener. The old one is worn out and I am trying to find a replacement.

Bob · Accepted Answer

Thanks for writing in. This looks like either a 39-032 or 39-156 Dual Arm Operator. The difference between these two operators is the length of the link arm. See the images below. Compare both with your old hardware to see what matches best. In either case, for a new cover and handle use the 39-107 and 39-114L, sold separately.

Dimensions for 39-032

Dimensions for 39-156

Dimensions for 39-032

Dimensions for 39-156