Casement Window Hinge Makes Operator Droop

Home Owner from Athens, AL
I'm looking for a replacement hinge for my casement window. In case the dimensions aren't legible in my drawing, the bar that attaches to the window sill is appx 10", the bar attaching to the window is appx 7 1/2", and the cross bar is appx 5 1/4". The bar on the window sill has the number "40941" imprinted on it.
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15 Replies
Casey
Casey from SWISCO
SWISCO
Expert

Hello,

Take a look at our 36-048 hinge set. Let us know if you have any other questions. Thank you!

Home Owner from Athens, AL
Those look right, thank you! Do you sell them in singles or can I get a double set of just the bottom hinges? I need to replace 3-4 bottom hinges that have started to degrade, but the top hinges on each window look to be in perfect condition.
Tom
Tom from SWISCO
SWISCO
Expert

I'm afraid these are only sold in pairs; one for the top and one for the bottom. We recommend replacing both at the same time anyway to ensure that the window operation is fully symmetrical. Minor differences between the top and bottom hinge could make the window crooked as it opens.

Home Owner from Athens, AL
I finally got around to installing these, and the operation arm now sticks when the window is almost closed. I can get it to close, but it pops, like it's getting stuck against itself and slipping a gear. Any thoughts? I can take additional photos or measurements if need be.
Tom
Tom from SWISCO
SWISCO
Expert

I'm not sure why that might be happening. Your dimensions are more or less the same as yours; they're close enough that this shouldn't be happening, anyway. Can you specify which arm exactly is sticking out? Can you show us a photo of the issue?

Home Owner from Athens, AL
This is the old versus the new. The only real difference I can see is the size of the black tab.

I can take a picture without the screen if need be, but I'm hoping this illustrates it enough. The red circle shows the spot that seems to be pinching. The left arm is catching on the metal just below it and abrading it a bit. It will close, but when you get to this last portion, there's an audible pop as the gear slips. Same when you first open it.
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Dave Sr.
Dave Sr. from SWISCO
SWISCO
Expert

Hey, I think I can help you with this problem. I actually had this same situation not long ago when I was installing a set of hinges for my neighbor. 

Here's what you can do: close the window until it comes to the point were it hangs up. Check to see if it's hanging up on the top hinge or bottom hinge set. In my case, the window was hitting on the bottom hinge when closed. What I did was to file the bottom of the window sash at the location where it was hitting. 

That's what worked for me. With that being said, there are other explanations. I'll go over some other possibilities.

Firstly, your window could be hanging up on a screw in the track that is not set properly. Before you file anything, check all screws to make sure they're in. Also try removing the operator and then push open and close the window using your hand. You could have a worn operator; if you do, the window will open and close fine with the operator removed. Finally, just make sure you installed both top and bottom hinges as a set.

Dave Sr.
Dave Sr. from SWISCO
SWISCO
Expert

That is strange. The hinges and operator don't physically interact at all. I don't know why your operator would work fine with the old hinges but not the new hinges, especially since they're practically identical. It's not like the hinges overlap or interfere with the operator's movement. We're missing something here.

All I can think of is that the new hinges aren't installed securely, which would leave the sash to be a little uneven. The only other explanation is that the operator has broken between the time you removed the old hinges and installed the new hinges.

Home Owner from Athens, AL
Dave, it's not hanging up on the hinge set. The issue as stated in my previous post is that the operator arm is pinching against itself. The hinges go fine without the arm in place, and the arm worked fine with the old hinges.
Home Owner from Athens, AL
Dave, I've checked to confirm the hinge mountings are all secure. All of the hardware for my operator arm is intact and appears identical to the other windows. Is there a procedure somewhere for properly aligning your operator arm when you mount it? Maybe something shifted and it's off slightly
Home Owner from Athens, AL
Just wanted to check back on my previous question. Is there a procedure anywhere for making sure the operator arm is properly aligned, like when you're installing a new one?
Dave Sr.
Dave Sr. from SWISCO
SWISCO
Expert

I'm afraid that I'm a bit at a loss. I'm not sure why this is happening. One thought is that your operating window is too low in the opening. Try installing some small washers between the sash and the hinge arm to raise up the sash to get it away from the hinge. You can also consider filing the rivet on the hinge in case it's hanging up on the operator arm, but understand that hardware altered in this way cannot be returned for a refund. See our return policy here for more information.

Home Owner from Athens, AL
Dave, I'll try the washers when I can take the window off, but I'm not sure why the window would be too low if it worked fine on the previous hinges. I'm definitely not going to attempt to alter the hardware.
Dave Sr.
Dave Sr. from SWISCO
SWISCO
Expert

I do think that's best. I really don't know why our hinge isn't working for you, I'm sorry. This one has us stumped. I am sorry that we cannot provide further insight.

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