PrimeTracker is a most sensitive and at the same time a powerful conveyor belt tracker. As belt moves horizontally and vertically and the tracker is always in full contact with belt. The specially developed rubber pivot has no starting friction to overcome. It reacts immediately to any movement and belt is guided back to straight line.
A pulley must be oriented square to longitudinal line in order to work to satisfaction. Sometimes tracker can move to and from with no known reason.
It is known that a crowned pulley makes the belt run centered. If pulley is concave there will be other “crowns” as picture to the left. There are two crowns and one concave part.
Belt will move to the highest point and tracker will bring belt back to straight line. This is repeated and is seen as tracker moving to and from.
Plack build up on rolls and the same story as above. Remember the 180 degree wrap gives more power to pulley than 8 deg wrap to tracker.
Short distance between pulley and rolls can develop a belt bulb and high load on pulley. Picture to the right indicates tension in belt.
This is another pulley with three “crowns”. Risk for belt searching the best crown. Tracker will have difficulties to guide the belt to a centered position.