Mori Seiki SVD 403 Spindle Repair

Possible cause of failure:
Bearings are noisy. Taper is bell mouthed with one chip. Big-Plus test bar runout = 24-30µ.
Drive dogs have been modified.
Customer supplied a standard CT tool and knob.

Repair action:
Clean, inspect overall dimensions.
Replace bearings, Bellevilles, plastic oil lines, ferrules, o-rings, 10mm front cover balls and springs.
Grind, chrome plate and finish grind the taper to Big Plus 40 taper specifications.
Adjust preload, balance, assemble and break in. Final quality control inspection.


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