Monarch thumb screw

beckerkumm · Jan 9, 2023

My Monarch 60 is missing the thumb screw for the cross slide dial. Can someone tell me if the original was steel or something softer and was there anything special about the tip? The thread looks to be 5/16-24 and length about 1.5". The picture in my parts manual is too small for my old eyes. Thanks. Dave

Jdub63 · Jan 10, 2023

I'm not sure if the thumb screw is the same as a 10EE one, but here's a picture of my disassembled dial. You can see the thumb screw and retaining pin.

Cal Haines · Jan 10, 2023

Looking at the 1957 Series 61 parts manual at VintageMachinery (link) I think that you're asking about part R12, on page 36. It's called a Stop Screw. Based on the diagram, it appears to be similar to that shown by Jdub and to that on my 1943 round-dial. Here's a photo of mine with some dimensions added:

The design for the 10EE cross-feed dial changed around 1945, with the introduction of the square-dial 10EE. The design of the Stop Screw changed slightly with the redesign. The photo that show both types:

Here are some threads that discuss the Stop Screw and threading stop:

thread cutting stop

On CW 16 How do you set the thread cutting stop so that it repeats back to the outside diameter of the work? I don't know if it's user error (most likely) or a problem with the dial. Lathe is setup for threading. Turn the dial so that the threading tool is just at the work, turn in the...

www.practicalmachinist.com

Jim's 10ee rebuild thread

I'm no expert, but I believe your beautiful lathe will be more convenient to operate it you secure it to the floor, rather than the ceiling. :)He will not have a problem with chips on the lathe,LOL

www.practicalmachinist.com

Another New Toy

Oops, I forgot to mention that there is no channel, like on the EE, to hold a bead type seal. One edge has to be glued on. These doors do control the access to the leveling screws and the electrical compartment. Harry

www.practicalmachinist.com

beckerkumm · Jan 10, 2023

Thanks to all. This is very helpful. Dave

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Monarch thumb screw

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Cal Haines

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thread cutting stop

Jim's 10ee rebuild thread

Another New Toy

beckerkumm

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