Heidelberg GTO 46 Impression problem

Hi Everyone,
I have a GTO 46 that for some reason will not go on impression. I changed out both the rubber feeder fingers thinking that was the problem but still no change. It will feed paper fine then when I go on impression, it sounds like it is but when you check the sheet and the blanket, no ink transfer. Any suggestions,
Thanks
Brian

 

Sounds like the linkage that moves the blanket isn't working.....or
may sound silly but is the blanket packed correctly. Is there an image on the blanket from the plate.

Regards.

 

Agreed, I once shorted changed my packing once, was almost ready to call for service.

 

must have been the problem DOUH!

 

Sometimes it's the really simple stuff that gets you! And the simpler the thing you've overlooked that one time that you've done a million times, the harder it is to spot!

 

Thanks for all your responses. Actually the problem turned out to be the air valve located underneath the feed board that controls the on off of the air as it grabs the paper. I pulled the valve, cleaned it inside and out, lightly lubricated it, operates like a brand new machine. Thanks again.