Replacement window part

Question

The part has "Truth 30744" on it. It has a round part that goes in the slider, while the recommended parts on your website have either a square or rectangular part.  Can you tell me which arm set would replace the one in the picture?

Bob · Accepted Answer

Hello there. This dual-arm operator looks like either the 39-031 & 39-032, or the 39-155 & 39-156. Both of these sets of operators have a round roller at the end of the straight arm. The only difference they have is the length of the link arms. See the diagrams below for reference. Measure the link arms of your old operators to see what matches best.

Dimensions for 39-031

Dimensions for 39-155

If you're referring to the window hinge as also, see the 36-004-10 10" Hinge Set. A different style wouldn't matter, so long as the dimensions otherwise match and if you replace both hinges in the window at the same time. Take a look and let me know if you have further questions.

DImensions for 36-004-10