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Leinen MLZ4SK - Headstock removal

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I've recently purchased a Leinen lathe and am in the process of stripping it down and doing a partial restore on it.

My understanding is that the headstock is held in place by two eccentric bolts and associated round t-slot bolts.

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The bolt closest two the spindle loosens nicely, however the opposite one seems to be very tight.

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I've rotated the bolt to the loosest position and tapped it with a deadblow hammer but have made no progress in sliding it off the ways.

I was hoping someone had relevant experience and/or thoughts on subject.
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