The shutter in TM2 was successfully replaced today.

New lock washer and nut were installed onto shutter and nut torqued to 120 ft lbs.

Shutter guide alignment tool was used to insure tapped shutter guide holes were concentric with thru holes in shutter side mounting panel, button head screws replaced and torqued to 110 ft-lbs.

The shutter was manually cycled open and closed by David and everything is to operate well.