Safety Precaution Sheet To be read carefully before use - Logitech Ltd

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Select the drive rod nearest the front of the PM5 machine. Release it from the latch, and lower it into the fully down position. Take care that the rod point does not contact the plate cover. Observe the distance between the rod point and the plate cover. Lift the drive rod back into the lockedup position. Should an adjustment be necessary, slacken the star clamp (< 2 >) and adjust the arm position either up or down as appropriate. Re-tighten the star clamp and lower the drive rod to check its height above the plate cover (approximately 1.0 mm). Readjust as necessary. Finally, with plate cover removed, check that all drive rod points are approximately 1.5 mm above the polishing disc when in the fully lowered position and with the star clamp fully tight. Return the rods to the locked up position and replace the plate cover. 2.5 Positioning of WG2 Polishing Head in relation to Polishing Plate As the PM5 machine plate always rotates in an anti-clockwise direction, the polishing head must be positioned to the front of the polishing plate. This is to ensure that the forces imparted to the carousel by the specimens running on the polishing plate are counteracted by the rollers (< 30 >) on the roller arm. In general the head position should be set so that when the Eccentric Sweep is in operation, the specimens travel as near to the edge of the plate as reasonably possible without falling off and also traverse the centre of the plate. This provides maximum use of the plate surface. Also, rotation of the specimens is assisted when they traverse the plate centre. Slacken the star clamp and position the polishing head a little towards the front of the polishing plate. Re-tighten the clamp. Switch on the PM5 machine in polishing mode and set the Eccentric Sweep amplitude to a relatively low range. Run the plate slowly. Increase the sweep amplitude, by way of the LCD screens "Set Outer Limit" and "Set Inner Limit" on the Process Data Display on the machine control panel. Assess the amount of reciprocation of the polishing head, which should be approximately 25mm, and the outer position reached during this process. Adjust the sweep amplitude as necessary until the required value is reached. To set the position of the WG2 Head in relation to the polishing plate, press the machine "STOP" key when the roller arm has reached the outermost point of its sweep movement. Slacken the star clamp and gently rotate the complete polishing head about the roller arm pillar until the outermost drive rod point is approximately 12 mm from the periphery of the plate. Re-tighten the star clamp, ensuring that the Head height remains approximately the same (re-check as in 2.4 above). Start the PM5 machine and plate running and observe the Eccentric Sweep. Fine adjustment can be made using the fine adjustment knob (< 23 >). Place the slurry scraper (38 >) on its right hand support pillar and position it against the plate. The "L"shaped catcher should lightly touch both the periphery and the underside of the plate. Excessive pressure will only wear the scraper block unduly without improving performance. BE-01-9-5 Page: 6
2.6 WG2 Controls (See Figure 2 ) The WG2 control panel (39 >) is mounted on the upper part of the PM5 machine casing and draws power for the WG2 head from a supply unit located within the machine body. D WG2 M aterials Tech nol ogi sts & Eng in eers A - Power socket for WG2 polishing head. B - Control knob for direction of carousel rotation. Figure 2 C - Speed control for carousel. Speed continuously variable from zero to a maximum nominal speed of 35 r.p.m. D - Jog button to rotate carousel for sample loading and unloading when PM5 machine is switched off. Speed and direction are set by other controls. JO G 0 B A C BE-01-9-5 Page: 7
Page 1 and 2: Equipment Manual for the Operation
Page 3 and 4: 21 13 34 16 18 17 29 22 33 31 20 1.
Page 5: 2. INITIAL ASSEMBLY AND ADJUSTMENTS
Page 9 and 10: The WG2 polishing system is primari
Page 11 and 12: 4. STANDARD OPERATING PROCEDURES Th
Page 13 and 14: Clean the WG2 polishing head with t
Page 15 and 16: 6. MAINTENANCE Little routine maint
Page 17 and 18: 40 19 Figure 6 - Plan view of PM5 m

Safety Precaution Sheet To be read carefully before use - Logitech Ltd

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