SM52-2pu

The pull lay sensors are beeping with every pass cleaned all sensors hasn't helped any ideas?

 

Good day sir
1) Adjust the Light barriers (mechanical)
1a)test for ANK - Sensor of sheet alignment control +FÜK- sensor of early sheet detector.
2) Tight Any cables -socket very well , clean for Ink, oil, dust, see for break and test continuity with DMM
3)Test the Amplifier for Light barrier( use the Schematic Diagrams) for help ID the test point.
4) Mechanical sheet arrival detector adjustment
Thank you in advance, sincerely
Back to me any question or doubt