Windmill Feed/Delivery Clutch


Disassembled a Windmill that needed to be moved without having much knowledge of the press. I was counting on the parts manual and my memory to be able to piece it back together, but I’ve already encountered a problem and will likely encounter more.

I am having problems getting the feed/delivery clutch back together. The outer part of the clutch is engaging the gear that controls delivery height fine, and the inner part of the clutch is engaging the main shaft fine, but they are not engaging with each other and I am worried that I am missing parts. Unfortunately the inner workings of the clutch are not displayed in the parts catalogue.

In short, how do the two pieces of the clutch interact? All that is in there right now is a large spring. How does the inner part turn the outer part? Is it by pressure alone, should something be connecting them between the two largish holes in their castings?

Thanks for any advice,


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Paul, maybe it’s because my English isn’t good enough, but I don’t get it. Can you post pictures and/or state part numbers?

The parts I’m referring to are numbered T-1105 and T-1106 on page 72 of the parts catalogue. Part T11-L3 (key that affixes to shaft) and T1110 (large spring) are enclosed.

For those of you who don’t want to look in the parts catalogue, I’m talking about the two cup shaped pieces on the delivery side of the shaft under the feed/delivery table.

I will also utter a disclaimer at this point: I may have been putting the feed mechanism back together in the wrong general order. I do not have any of the parts from the feed side of the shaft re-installed and I may simply need to do that first.


Have you refitted the sleeve which fits between the clutch and the handwheel?
This provides the pressure to lock the clutch to the shaft.

Yep, I have. I will reinstall the other end of the shaft and see if everything works out, there is pressure that comes from both ends and I have a feeling it’s not engaged because the other end is slack. Hopefully it’s as simple as that.

Yes, once the feed side of the shaft is fitted with all components the delivery side handwheel can be cranked in or out to change pressure on the outer clutch. I am assuming you just adjust the handwheel in until the outer clutch engages the inner clutch (which is keyed to the shaft) and then when turned, the delivery table will move up?

I really do not understand the purpose of those mechanics. Why a two piece clutch? When do you want to disengage the clutch? Don’t you always want the delivery board to rise if you are lowering the feed? If I am adding paper but I don’t want the delivery to lower, do I have to adjust the tension with the handwheel on the fly, as the press is running? Seems like it would be simpler to just have an on/off clutch rather than compressing parts with springs until they turn together.

After 50 years spent operating Heidelbergs I can tell you that a skilled operator would always release the pressure on the clutch and lower both the feed and delivery tables prior to loading his stock to be printed in the feed table, he would then raise the feed table to the desired height using the handle on the left hand side, he would then grasp the vertical shaft of the delivery table, and raise it with his left hand and at the same time turn the handwheel on the right hand side to lock the clutch, as the delivery table is raised the cogs can be heard as the ratchet mechanism operates against the strength of the clutch spring.

Hope this helps you understand the mechanics in Heidelbergs. Everything they put in their machines is there for a purpose.

What you describe makes perfect sense, but I’m still not sure I understand why. I am sure that as soon as I actually operate the press it will become clear. Thanks for the clarification.

It allows you to remove stock on the delivery table and pull it back up without affecting the height of the feed table. Ron

The delivery table can also be dis-engaged in this way in order to insert the belt conveyor for a drier unit or a thermography unit to which the sheets are delivered rather than the original slanted table. You would not want the delivery table to raise while using such an auxiliary piece of equipment.

Never heard of that before, but it makes perfect sense. Seeing how our offset presses have thermo units with conveyors, it wouldn’t be difficult to move them to the windmills.

I’ve run a thermography unit on my ryobi offset, also the same unit on my kluge and windmill. Dick G.