Removing the front beauty piece from a Canon AE-1 Camera and removing one screw from the lens coupler, with a little lubricant, a syringe and a blunt needle, you can fix your Canon AE-1's squeaking shutter
Remove the front beauty piece from the camera. The screws are in front below the word "Canon", on the left, on the right and....
on the bottom of the camera. Pull the front piece off the camera and you will be looking at the piece that holds the lens to the camera. While looking at the camera, remove the top left screw on the lens holder. The photos have the lens holder removed. Don't let that mess you up. Take a lubricant of your choice. I used vegetable oil.
Draw a tiny bit of lubricant in the syringe. Insert needle in the hole where the lens holder screw was. Put the needle in the hole a short way and put a tiny bit of lubricant in the hole. The last photo shows the gear you are lubricating with the camera taken apart, you do not have to take your camera that far apart to lubricate the shutter.
Before you put the camera back together, check the shutter. if you have it repaired, it will make a positive "CLICK, CLICK" noise. Because the AE-1 has an electronic shutter, you must ensure the batteries are in your camera before you test it. If it test good, put the screw back in the lens holder and put the beauty piece and 4 screws back. FIXED