Handi Lockup Bar Question

I just got a lockup bar. It is the early style, but I’m missing two pieces the internal pin that goes from the cam to the spring and the pin that aligns the sliding part of the bar. That part is broken. I’m looking for some dimensions and/or some picture of each of those parts.

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Eric Holub
12 years ago

I checked the Handy Lockup Bar on my 325. Here, the screw in question is 1″, 10-32, fillister head.
It just seems to keep the extension block from twisting or sliding off.

Fritz Klinke
12 years ago

We have in stock NRS-23, NR-253, and NR-255. I’ll have to check the assembly print to see what the screw referenced is and what it does–most likely a limiting screw as on the handi lockup bar.


Paul Moxon, Moderator
12 years ago

There is a screw that passes through the extension block into the bar, but this only keeps the block attached. NRS-23 is the only spring (also used in the Positive Lockup Bar), but it doesn’t expand or compress. The tension is released, via the handle, when the cam is backed-off the cam rider. lubricate the parts with graphite.

I don’t have a Handy bar to consult, but will see one in May at the Center for Book Arts in New York.

Paul Moxon, Moderator
12 years ago

Here’s a drawing, but unfortunately it doesn’t show measurements.

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