C-Axis Greasing Process on the MU-500V

In order to prevent bearings from seizing or overheating we provide a greasing interval counter that indicates the appropriate greasing timing for the C-axis on MU-500 machine tools. When greasing, turn the C-axis table and supply grease following the C-axis re-greasing guide. The life of your MU-500VA-L C-axis (tuning type) bearing significantly differs with the rotation speed used for operations. The speed used for operations can be checked on the turning spindle (C-axis) life counter display.

This function is available on the OSP-P200M and MA, and also on the P300S/M/SA and MA machine tools. You can access it in the MAINTENANCE screen.

• The Rotary Axis and the Turning Spindle are monitored by Interval Counters formatted by 0/0/0 (calendar day), called the Maintenance Day.
• Once the Maintenance Day is set for the Rotary Axis, the maintenance day for the turning spindle will be updated. They are ALWAYS updated at the same time.
• The Rotary axis simply counts the number of days since the last maintenance regardless of Power on/off status.
• The Turning Spindle is on a life basis and the system counts the rotation time considering the difference caused by the axis rotation speed.
• Elapsed time and actual rotation time conform when the spindle is used at its maximum rotation speed.
• Accordingly, the addition of elapsed time will be slower than actual time with the slower the spindle speed.

The full explanation and instructions for this function are listed in the following manuals:

OSP-P200 MU-500V Rotary Axis/Turning Spindle Grease Interval Counter
INSTRUCTION MANUAL (2nd Edition)
Pub. No. 5498-E-R1 (ME61-151-R2) Oct.2010

OSP-P300 MU-500V Rotary Axis/Turning Spindle Grease Interval Counter
INSTRUCTION MANUAL (2nd Edition)
Pub. No. 6071-E-R1 (ME61-305-R2) July 2016

Thanks to Rick Sundberg (Support Center Technician, Okuma America) for providing this Service Tip.