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Machine repair experience

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Mitsubishi M64 control Corrupt user program memory symptoms

Symptoms of program memory needing to be formated which occured on Mitsubishi M64 control. This happened on Mori seiki GV-503 CNC machine with a meldas 64. Customer said a DOS screen appeared on Bootup once or twice with “ diagnostic code 005 Enter. As well as analyzing data.

Zimmerman CNC machine with lubrication alarm

Had a problem the other day with a Zimmerman bridge type CNC machine tool. The machine utilized a grease lubrication system for it's linear guides and ballscrews. The Zimmerman had a lubrication alarm that came on after about 15 seconds after the alarm is cleared.

Machine does not tool change due to ATC 2nd reference postion out of work envelope on Mitsubishi M3 control

Had a problem on Mitsubishi machine H-5A. When commanding a tool change the tool was called up and placed above the spindle. However the ATC did not exchange the tools and came up with a YZ not at 2nd reference return alarm. The position in the screen had a #2 next to them so they were in fact at 2nd reference. The machine had a Mitsubishi M3 control on it. On this control someone had changed the Zero return position and 2nd reference position. However there is also a fail safe in the control. to prevent excessive changes and keep the zero return within the factory envelope.

VF1 Spindle

I would like to rebuild the spindle in my VF1 myself. Has anyone done this before?

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