Heidelberg SORDZ (1990)

Hello....I will greatly appreciate some help on what to check for the problem below
While the press is running a job the Delivery Table sometimes go all the way down
This happens very often
Thank you very much

 

Remove lower cover, operator side. On pile hoist shaft, you will see the "star cam" and roller switch. It may be that the roller switch mechanical components are worn, or the switch contacts aea soiled.