PM727V Z-Axis Crank Difficulty

***PROBLEM SOLVED***

I emailed Precision Matthews, they suggested to first check the Z-axis gib adjustments for excessive tightness, that was not the problem.

Before hearing back from Precision Matthews I removed the Z-axis leadscrew cover plate on top of the column to expose the flange nut on top of the leadscrew. I don't have the torque spec on that, but I tightened it until slightly snug (it had zero torque on it) and the crank now operates very smoothly. By tightening that I think I took the severe tightness out of the bevel gears down at the crank by having lifted the leadscrew/bevel gear slightly upwards into its proper position.

Anyhow, problem solved...

Craig
 
You obviously had the tools to correct this issue from the get go, that being said, I'd be severely reluctant to disassemble a new machine w/o talking with manufacturer first.
Nice work glad to see it was a "small" detail that was missed. Now if that were lug nuts on a car, not so small anymore.
 
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