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Topic: Help please: Goko RM8008 problem
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Andrew Woodcock
Film God
Posts: 7477
From: Manchester Uk
Registered: Aug 2012
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posted December 19, 2016 04:56 PM
Just on these Luke, much depends on factors such as Capstan rubber idler wear and concentricity, pressure onto the steel capstan roller, film lubricant type and how much applied, take up tension etc etc where wow is concerned.
Get the right pressure applied to the capstan, check the steel capstan roller itself is running at constant speed and do make sure the take up tension from the drive belt from the same source as the capstan steel roller, isn't pulling on the film in any way. When these work as they should, there should JUST be sufficient tension to wind the last loops from a full 800ft of film.
Any more than this, the film is being dragged through the capstan in the earlier stages of take up.
Most likely though to be over lubricated film or an issue with the rubber roller, either for pressure applied to the steel capstan roller or wear, grease etc on the actual rubber roller surface.
After checking for wear and concentricity, try cleaning the rubber roller by degreasing it gently with a solvent solution.
-------------------- "C'mon Baggy..Get with the beat"
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