MI Windows - 1650 --- 26211353.1

Question

The only window identifier I can find was a paper glued to the top of window. Written in the exact order as below.

"MI Windows & Doors
26211353.1
1650
Warranty information -Do not remove"

Attached pictures are from a functioning window. The symptoms of the non functioning window. 1. The show is broke into multiple pieces. 2. the window does not stay up on its own.

The picture labeled 1172 is what I believe to be the shoe, and it is 2 inches in length and 1 1/4 wide. The picture labeled 1173 is what the show goes up into.

While I dont think there is anything wrong with part in pic 1173 is there anything I need to do when I install the replacement part in 1172? Is there any special tool if Do I need any special tool (s ) to work on this window ?

ISSUE: The window that is not working the window will not stay up it falls.
The part that is in 1172 is broken into multiple pieces, possibly from weather exposure,age or possibly a weakness in that part.

I have not worked on windows much but I do lots of home repairs on my own. As long as I have the correct part and tools I am comfortable repairing things.

Is there anything more that I should be considering when I replace this part ?

User submitted photos of window hardware.

Paul · Accepted Answer

You show a 15-180 pivot shoe and a 15-181 coil spring clip. They both look fine, so it's probably the coil springs that are broken. They are Series 190. We will need the number stamped on them when you order. There should be a cut-out at the top of the window, which will allow you to remove the parts and repair them.