I've got a micrometer carriage stop for a Heavy 10 that is stuck. I couldn't move the adjusting wheel at all so I started taking it apart. Ive got it apart except for the bronze bushings, main shaft and adjusting wheel, but even after soaking in purple power and pb blaster I can't get it free. I'm wondering if the carriage was crashed into it at some point. Any tips for how I can disable and check it out?