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Author Message   Pablo Coronel (Titrisol2) Tinkerer Username: Titrisol2 Post Number: 3 Registered: 05-2023 Rating: N/A Votes: 0 Posted on Friday, October 20, 2023 - 07:07 am:    A picture of the Karat 36 without the cover The RF is coupled by a lever that moves the RF as the lens unit moves left to right. The RF assembly has a pin that moves it Left to Right and a spring that return to infinity. If that movement is sluggish you have to clean the rail. I used a qtip with electrical contact cleaner and then lubricated with a little powdered graphite. The 3 screws marked in yellow hold the RF unit in place, those are the ones I used for adjusting.