Ryobi 3302HA Ductor control details

[Deleted member 16349]

I have a question about how the ductor roller on the Ryobi 3302HA is controlled.

When the press runs but no paper is fed, I am assuming that the ductor rests against the first roller in the roller train.

Is this done by means of an air cylinder to keep the ductor roller in that position?

When printing, is the ductor roller allowed to move to the ink fountain roller via a cam with a spring or air cylinder applying the force to put the ductor arm in contact with the cam?

Thanks for any clarification on this.

Erik

 

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Ink Ductor

Ink Ductor

Erik,
That is an easy question. The 3302HA has a solenoid on the non-op side that controls the ductor roller action. You may enable it to duct all time, never on or only when paper is feeding via the control panel.
The solenoid is mounted in the upper right hand corner and is mounted to a cheaply made small frame that sometimes causes the roller not to work properly. It is easily adjusted with screws or if needed the spring may need to be changed for more tension etc.
I have seen many times where the Ryobi or Syntac rollers are so oversized the solenoid does not have enough room to function properly.
Hope this helps
Regards
OG

 

[Deleted member 16349]

Erik,
The 3302HA has a solenoid on the non-op side that controls the ductor roller action. You may enable it to duct all time, never on or only when paper is feeding via the control panel.
Regards
OG

Thanks OG,

Some clarification. Does the solenoid pull (or push) the ductor to the ink fountain roller and the spring returns it to the roller train?

Do you have a manufacturer's part number for that solenoid?

Thanks again.

Erik

 

[Al Ferrari]

Hi Erik,

I have a 3302. The ductor is cam actuated. The solonoid operates a latch that would otherwise keep the ductor in contact with the first roller. When not energized, the latch holds the roller against the first roller. When energized, it pulls the latch out and allows the cam actuated motion of the ductor.

I can post the part # tomorrow.

Are you installing an ITB on a 3302?

Regards,

Al

 

[Al Ferrari]

Erik,

That solenoid part # is AS-03A AC 115V.

The ductor is cam forced against the first roller, and spring pulled against the fountain roller. The ductor arms bracket is supported in the middle so that it is free to equalize pressure against ether roller.

I hope that helps.

Al

 

[Deleted member 16349]

Erik,

That solenoid part # is AS-03A AC 115V.

The ductor is cam forced against the first roller, and spring pulled against the fountain roller. The ductor arms bracket is supported in the middle so that it is free to equalize pressure against ether roller.

I hope that helps.

Al

Yes Al, it does help.

There is a remote chance that the ITB might be done on a 3302 press. I am just getting some information so I can have a head start if it happens. From what you say, I am guessing that I could mount the pickup roller in a way that forces the ductor roller to remain against the roller train roller by just pushing against the spring loading.

It is good to know the voltage of the solenoid. That 115v AC signal could be used to activate the engagement/disengagement assembly of the ITB.

Is there usually shop air or compressed air available on these presses? A 115v AC activated air valve could be used to supply some air cylinders. Just thinking.

 

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Erik

Erik

Erik,
The 3302HA does have an air compressor for the plate loaders and probably you could add a ductor roller control air solenoid to in fact control it. The PLC in the 3304 just switches 115VAC to turn the solenoid on/off. Very easy stuff to do.
Since Ryobi and Presstek are so tight with this DI thing it could be soon that parts will become scarce also. The 3304HA is a work of art when tuned properly.
They are pushing printers into DI copier and toner type of machines so enjoy it and make money while you can!!!!

OG

 

[Al Ferrari]

Glad to help Erik.

You could keep the ductor against the first roller by just pulling off the solenoid leads, and/or by mechanically fixing the latch in place, which keeps it in the high cam position. Then you could remove the solenoid, or use it for your own purpose in connection with the ITB.

In addition to the solenoid circuit, there is a 110 or 115 take off point on the electrical panel available for general service. Offset Guy can give you details about that.

Holler if you need more info.

Al

 

[Deleted member 16349]

Glad to help Erik.

You could keep the ductor against the first roller by just pulling off the solenoid leads, and/or by mechanically fixing the latch in place, which keeps it in the high cam position. Then you could remove the solenoid, or use it for your own purpose in connection with the ITB.

In addition to the solenoid circuit, there is a 110 or 115 take off point on the electrical panel available for general service. Offset Guy can give you details about that.

Holler if you need more info.

Al

Thanks Al and Offset Guy for the descriptions. It does give me enough to think about what I would need to do with the ITB on that press if it comes up. Erik

 

[Deleted member 16349]

Glad to help Erik.

Holler if you need more info.

Al

Al,

On the 3302 press.

Are there any tapped holes on top of the frame or on the sides of the frame near the top that could be used to attach things to? These would be holes that are not normally in use.

Erik

 

[Al Ferrari]

Erik,

There are at least the tapped holes for the solonoid bracket and latch. So if you don't need the solonoid, you can use those. I'll check tomorrow for others.

Stay tuned.

Al

PS Check your private messages on this board.

 

[Deleted member 16349]

Erik,

There are at least the tapped holes for the solonoid bracket and latch. So if you don't need the solonoid, you can use those. I'll check tomorrow for others.

Stay tuned.

Al

Al,

I am thinking of potential tapped holes on the press frames on both sides of the press so that I could attach anchor plates of some kind for the pickup roller and ITB attachments. It would be nice to avoid having to ask someone to drill holes in their press.

Erik

 

[Al Ferrari]

Erik,

Other than the tapped holes for the solonoid bracket and latch, there are no other tapped holes not being used on the side frames near the ductor.

But the good news is that there is a rectangular casting about .5 or .625 by about 1 inch directly below the ink fountain roller. This casting is held between the side frames by countered bored through bolts from each side frame, and I believe that by removing those bolts, that casting can come out after a slight spreading (about .005" to .010") of the side frames. Thus this can be taken to a machine shop for fitting with threaded holes to suit your purpose. Right under the ball roller! I suspect Ryobi was anticipating the addition of an ITB all along.

So is the press owner going for the ITB, or are you still plotting "just in case"?

Al

 

[Deleted member 16349]

Erik,

Other than the tapped holes for the solonoid bracket and latch, there are no other tapped holes not being used on the side frames near the ductor.

But the good news is that there is a rectangular casting about .5 or .625 by about 1 inch directly below the ink fountain roller. This casting is held between the side frames by countered bored through bolts from each side frame, and I believe that by removing those bolts, that casting can come out after a slight spreading (about .005" to .010") of the side frames. Thus this can be taken to a machine shop for fitting with threaded holes to suit your purpose. Right under the ball roller! I suspect Ryobi was anticipating the addition of an ITB all along.

So is the press owner going for the ITB, or are you still plotting "just in case"?

Al

Al, I think it is better not to disturb that component in the press. It sounds like a support structure and loosening those bolts might affect alignment.

It would be much easier to have a mechanic drill and tap into the top of the side frame if it is exposed.

The owner doesn't know yet. Someone else offered to ask them, thinking they would be interested.

So I am thinking in the "just in case"mode, since there are probably many 3302 presses around.

Erik