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Mori Seiki

elmers

Plastic
Joined
Dec 24, 2002
Location
Altona,MB,Canada
Hi looking for info on a TL-3A Lathe were having spindel speed fluctation during turning and thread changes after a number of parts Like 12tpi will slowly change to 12.5 13 14tpi have changed the spindle encoder no diff. help
 
I am not exactly a machinery repair person, but with what you are saying, it may be a z axis servo motor issue. when threading the machine should "lock up" between current spindle speed and z axis traveled. An experienced service man can tell somewhat by the servo gains. I'd say spend some bucks and get someone in who can tell you whats wrong, or you'll lose all your customers on quality issues.
 








 
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