25(2) How to release the protection circuitResolve the problem that caused the protection circuit to activate. Release the protection circuit by taking thefollowing actions.When operating by the ON/OFF Switch .Toggle the ON/OFF Switch . The RESET LED (RED) will be turned OFF and the protection circuit will bereleased.When operating by the Foot Switch .Release the Foot Switch . The RESET LED lamp (RED) will be turned OFF and the protection circuit willbe released.* When "01" is set for the Foot Switch change (refer to "11. HOW TO SET THE CONTROL UNIT" section),press the Foot Switch or toggle the ON/OFF Switch . The RESET LED (RED) will be turned OFF andthe protection circuit will be released.8 . FINISHING OPERATION BY ULTRASONIC POLISHER(1) Basic usageThe best method for using ultrasonic polishers is to press with slight pressure and keep the tools movingover the surface of the work material. The figures below show the direction of the ultrasonic vibration andthe most effective direction to move the tool over the work surface. Ultrasonic vibration greatly reduces thepressure required for fast material removal. Do not press the tool too hard and make sure the tool fits thesurface configuration properly. If required, you can grind the tool surface to the proper shape using diamondtools or sand paper.Fig. 12Using flat surfaceSecure contact between thetool and the work surface.Vibration direction / Slide directionUsing with angle30 degree is the optimumangle.Using end faceBottom cavity polishing can beachieved using tip of the tool asillustrated.(2) SHEENUS neo tool length specificationsPlease refer to the following table as a guideline to find the proper tool length. The length listed in the chartis the length of the tool prior to mounting into the Tip Holders . Check to make sure that the tool is properlyclamped in the holder and that the holder is tightly fastened to the ultrasonic horn prior to operating thesystem.Special tools for SHEENUS neo Dimensions (mm) Appropriate length (mm)Ceramic Fiber Grindstone4 0.8 6 0.850 - 104 1.0 6 1.0ȭ 3 50 - 10(3) Wood or brass lapping tips usageWhen using wood or brass lapping tips select CLAMP mode ( ) and start at a very low power setting. Iftoo much power is applied the protection circuit will activate and stop the Control Unit .