Electrical schematics for LB 25 wanted
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  1. #1
    Join Date
    May 2013
    Ronneby, Sweden
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    Default Electrical schematics for LB 25 wanted

    Hi guys!
    Spring is coming here in Sweden and the urge to accomplish something is returning.
    Finally got to start trouble shooting my old LB25, and found out that I got no electrical schematics what so ever..
    It blows the grid fuses immediatley as one try starting the spindle. Control and axis movement seem to work flawless so the problem likely is either in the motor or the spinle drive.
    I really need a set of schematics of the machine and I know from earlier investigation that the schematics for the spindle drive is hard to get.
    The lathe is an Okuma LB25 from late 80´s or early 90´s. I guess it was originally sold in Denmark.
    I used to run this machine at the former owners work shop so I know for sure it´s worth saving.
    The serial number is 6311.0030.
    It´s got an OSP 5000 control if I remember correct.
    The Spindle drive is marked: VAC-DRIVE UNIT TYPE A, D22-A, 15/11 KW, LB25.
    So, if some nice gentle soul would help me out here to get:

    Electrical schematics / Wiring diagram for the machine and
    the same for the spindle drive, it would be of tremendous help.

    (Our local OKUMA agent is very reluctant to help in these issues, they rather send a technician than documentation..)

    See Ya


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