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User Manual MRU Series 3.7.1 Rotation Direction of Motors The rotation of 3-phase motors of pumps, chips removal and fans might be reversed due to the different phase sequence of city power U, V and W. Please confirm the rotation of all the coolant pumps and cooling fans. 3.7.2 Spindle Run-in The grease inside the bearings of spindle might be concentrated by gravity due to temperature variation during the transportation and storage. It is a MUST to run the spindle following the procedures described in Appendix. 21
