Originally Posted by Geof  The explanation I was given by the Haas person is that when the spindle is not used for several days all the oil drains down into the lower bearing. If the spindle is run at high speed in this condition it can cause overheating. (I can confirm it does cause overheating.) The Run In program combined with the increased air purge pressure redistributes the oil and removes the excess. |
Where can I find that program?