I have TRUTH Entry Guard casement window operators. The part in question is stamped L30841. FROM THE INSIDE, the crank is on the lower Right. When turned, the window opes with the Left edge moving outward. I need a few new operators, but I want to start with just this one for now as I have no experience with this type of repair. If things go well, I will buy additional units.
Please advise.
Casement window actuator and crank
Quick Learner from La Porte, Indiana USA
Jul 23, 2025 4:31 pm
2 user uploaded images
4 Replies
Emily from SWISCO
Jul 28, 2025 12:51 pm
Thank you for reaching out to us. Take a look at the 39-031 and 39-032, as well as the 39-155 and 39-156. These operators resemble your old assembly. The best match will depend on the length of the link arm, so you'll have to measure as shown below.
Let us know if you have any questions.
Dimensions for 39-031
Dimensions for 39-032
Dimensions for 39-155
Dimensions for 39-156
Quick Learner from La Porte, Indiana USA
Jul 31, 2025 3:25 pm
It appears I need a 39-031, base on link arm measurment and opening orientation. It also looks like I will need a cover for the operator assembly, as mine is cracked, and the gasket will need to be replaced as well. The windowns and cover are a deep brown. Should I just telephone you, or wait for yor reply.
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