Unhook one end of the coil spring.

Slide the stamping so the larger end of the keyhole can be lifted off the screw.

Remove the stamping from the post on the lens board using the same method.

Remove one X mm flat head screw.

Installation Note: Remove the old grease with isopropyl alcohol. Reapply a thin film of molybdenum disulfide grease to the sliding surfaces of the stamping and the switch lever. The action should be much cleaner.