Sandvik Coromant Silent tools - application guide - Manual (Page 67)

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3. Turning
Treatment
For best performance, clean all parts and lubricate with oil at least
once a year. Lubricant should also be applied to the screws when
needed. Replace worn or exhausted screws and washers.
Dampened bars can become deformed due to the thin wall thick-
ness. When assembling, ensure that the bars are held correctly.
Always check the clamping when working with Silent Tools products.
Use a torque wrench for correct screw-tightening.