Question: Should oil be used on your harp’s disc mechanism?
Oil can be used on the action or disc mechanism of a harp to resolve specific problems. It won’t damage the harp as long as it is kept off the wood or wiped off immediately. As a harp technician, I use oil for two main reasons. The first reason is to lubricate moving parts. This decreases friction and frees up the motion. And the second reason is to eliminate or reduce the buzzing noise that can happen where metal contacts metal. These problems are normally addressed during a regulation or reconditioning. That being said, I recommend a true understanding of the problem to determine that oil is indeed the solution.