[billz1]

We have a okuma lb15 with 5000l control , when the turret indexes to a tool it hits hard and shakes before it sets down. Sometimes it will work fine but most of the time not. Thanks for any help.

[brucemazor]

decel valve on the hydraulics as it starts to reach position it should slowdown, then park itself. Valve is pulling on but not shifting allowing it to slow down before engagement.

[billz1]

Thank you brucemazor i will look in to that.

[underthetire]

Check every station, forward and reverse, with either a balanced turret or nothing on the turret. I've seen the limit switches cause this when the shafts wear out. If your machine is a early one, it may not have switches and have a resolver. If every station does it, then you need to adjust the decel valve.

[kurmay]

We have a okuma lb15 with 5000l control , when the turret indexes to a tool it hits hard and shakes before it sets down. Sometimes it will work fine but most of the time not. Thanks for any help.

problem is mechanical. change the rolling bearing in the turret.

[tspiszak]

We have a okuma lb15 with 5000l control , when the turret indexes to a tool it hits hard and shakes before it sets down. Sometimes it will work fine but most of the time not. Thanks for any help.

In mine lb15, a nut, that holds hydraulic piston, was loose just a bit, and we had similar problem. You can locate it under RH cover, past the switches on the revolver, ..
I hope it may help someone in the future.