Should edge of black contact block be lubricated?

Re: Seeburg M100C
Should the edges of the selector contact block be lubricated where they slide along the selection assembly? If so, can Sta Lube moly be used?
Steve.

Steve,
Yes--I use it VERY lightly--a real thin coat--there. Also--a light coat where the edges of the frog gets "pushed"--up against the spring on one side. and the metal bracket, on the other side. Ron Rich