Hi. The drive worm and gears on the crank operator for our casement window opener is stripped and doesn't work. We have a Lincoln window. The name on the operator is "EntryGard Truth". The long arm is 10 3/4" long and the link arm is 4 7/16". On the link arm there is an 'L' and #31538. The number on the long arm is 40753. I believe that I need part #39-031.
Will my existing cover and handle still work on a replacement part?
I have attached a few pics. Let me know if you need more information.
EntryGard Dual Arm Operator

Handy Person from Wauwatosa, WI
May 5, 2023 4:47 pm
3 user uploaded images
2 Replies

Emily from SWISCO
May 8, 2023 11:47 am


Hey there!
We appreciate you reaching out to us. I agree with the operator that you picked out. Your dimensions appear to match ours exactly so your old cover and handle should be fully compatible with the 39-031.
If you have any questions just let us know!
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