Sx74-4 perfector error

Please help, I have this sx74-4 telling me to change it back back to straight mode how do I do it. at first the machine had perfector synchronisation sensor error, then I unscrewed the sensor on the pneumatic cylinder near perfector and restarted the machine, after a reboot that's when the machiMa brought this error.

 

Dear Richard,
You have to go back to straight mode, and check the zeroing of the storage drum, and the geer segment.
This is done manually, and I prefer to be done by an expert.
Regards.

 

Thanks alot for the reply I appreciate. I open the machine on the operator side unit 3 and found that two sensors were faulty. One for transfer drum synchronisation and one that point on the storage drum and they look alike. I fixed one because it was eaten by rats and install it where the synchronization sensor was and I ordered the remaining one not delivered yet. So will let you know once it's here this week and what will happen after installing it.

 

You are welcome.
Hope to solve your problem soon.
Regards.

 

Hi Aden, sorry for taking long without without giving update, it was because of the sensor took long to arrive. I have installed the sensor today and the put the machine back to straight printing. But the problem I have now the machine is going in reverse direction. Can you please help?
Thanks in advance

 

Dear Richard,
(The machine running in reverse direction).
I think this that the encoder needs adjustment or it's defected.
And the photos you have sent are telling you that the size at the feeder is different than the size at the storage drum.
You have to change the size of the perfector to be similar to the size at the feeder.

 

Hello Asem, after changing the paper size I started the change over process and the machine indicated that I should insert the handle, I inserted the handle and the it seems the perfect has locked it cant move in any direction. This was caused because a certain switch close to perfector synchronisation sensor was in the wrong position.

 

Which position is this switch supposed to be when the machine is in straight printing. The white switch

 

Hi model is your machine Heidelberg?

 

The machine model is SX74 all the errors removed now but I hit run the machine now brings synchronisation sensor perfector error. It's a new sensor and I don't think the sensor is faulty because I tried to swap it with another sensor still giving same problems

 

Hi Richard
By the comments it doesn't sound like you have much experience on perfectors generally this sort of work is done by experienced heidelberg techs. As Asem says you need to put the machine manually back to straight then clear the errors. The syncro error is the position of the sucker bar on the storage cyl. in relation to the pincer bar. If you have altered the sensor or the flags it will need to be set up again. This is only monitored in perfect mode but will need to be correct before doing a calibration run.
Hope the above info helps but i think you're going to need outside help

 

Thanks contractor, I have sorted out the machine and it's now working perfectly. It was the flag and the main motor encoder was hit by a hammer when someone was trying to remove the brake some months ago. The synchronization sensor error was coming out because the main motor wasn't running sometimes when you hit run and sometimes it was going in reverse direction. I really really appreciate guys for the support. Thanks alot.

 

Well done Richard

 

Good Sir

 

I am happy to hear that.
Good luck.