Loss of Pressure During Plate Wash Up Cycle

[maverick1971]

Hi All,

I am running a QMDI Classic. When imaging of plates is completed and the press goes into the plate wash-up cycle, there is a loss of pressure and the cycle ends abruptly with the safety symbol appearing on screen.

What could be the possible cause of this problem? How do we remedy this problem.

Many Thanks - Shawn

 

[Marc Bremer]

When the pressure drops below (I tought 6 bar) machine stops. You have a air leak somewhere (can be one off the blue pressure hoses). Maybe you can sort it out by using special SF functions to switch on individual parts.

 

[maverick1971]

Hi Marc,

Thank yo for your response. Please explain what you mean by "use special functions" to switch on individual parts. Could you supply me with a list of the special functions to use as a diagnostics tool please?

Also, when you mention the blue pressure hoses, do you mean the very thin blue pneumatic pipes? Please advise.

Thanks again for your response. Regards Shawn

 

[Marc Bremer]

With "special functions" I mean press SF3+7 15 on the console now you can give in a 3 digit code for lets say activate pneumatics plate cleaning and switch them on/off with the plus and minus key. I'm sorry to say I can't find the list with this functions yet. With the blue hoses I indeed mean the thin pipes but also the big ones.

PS

For the list with codes maybe someone else will share them.

 

[jan]

Hi Marc, Could you supply me with a list of the special functions to use as a diagnostics tool please?
Thanks again for your response. Regards Shawn

Hi Maverick,
004 OUT, SVK3:X43-7 Printing master wash-up device, washing solution PU 2, Y44
007 OUT, SVK3:X33-1 Air supply for washup solution container, Y33
018 OUT, SVK3:X44-2 Printing master wash-up device, membrane on/off PU 1, Y34
019 OUT, SVK3:X44-1 Printing master wash-up device, cloth feed PU 1, Y38
022 OUT, SVK3:X32-7 Printing master wash-up device, washing solution PU 1, Y43
030 OUT, SVK3:X42-9 Printing master wash-up device, membrane on/off PU 2, Y35
031 OUT, SVK3:X42-10 Printing master wash-up device, cloth feed PU 2, Y39
035 OUT, SVK3:X43-2 Printing master wash-up device, membrane on/off PU 3, Y36
037 OUT, SVK3:X43-3 Printing master wash-up device, cloth feed PU 3, Y40
038 OUT, SVK3:X43-4 Printing master wash-up device, membrane on/off PU 4, Y37
039 OUT, SVK3:X43-5 Printing master wash-up device, cloth feed PU 4, Y41
105 OUT, SVK3:X44-8 Master washup device, washup solution PU3, Y45
106 OUT, SVK3:X44-9 Master washup device, unlocking the forward feed of the cloth,Y47
107 OUT, SVK3:X52-3 Master washup device, washup solution PU4, Y46
It's the list with all relevant elements, but most probably it's one of those 4:
018 PU 1, Y34
030 PU 2, Y35
035 PU 3, Y36
038 PU 4, Y37
rgds
Jan

 

[maverick1971]

Hi Jan,

Many thanks for the list of codes - much appreciated. Thank you for taking the time to respond.

Regards

Shawn