OHAUS PA64 Service Manual

Also see for Carat PAJ1003: Instruction manual

Contents

OHAUS PA64 Service Manual Manual pdf 51 page image

CHAPTER 3 MAINTENANCE PROCEDURESPioneer Balances Service Manual 3-27 Ohaus Corporation www.ohaus.com3.3.16 Disassembling Analytical Load CellsNOTE:Use extreme caution in moving the Contact Board to avoid stressing or breaking thefine wires underneath it. (If one of these wires is broken, it must be replaced.)20. Remove the screw in the Contact Board that had the 3-wire Ribbon Cable solderedto it. Move the Board with great care, to protect the extremely delicate, fine wiresconnected to it from underneath. (See Figure 3-72.)21. Use a smaller screw to temporarily fasten the Contact Board to the screw hole on thetop of the Ratio Beam, as shown in Figure 3-73.Figure 3-72. A screw connects the ContactBoard to the Load Cell.Figure 3-73. Use a small screw to fasten theContact Board to the Ratio Beam.22. Remove the Sideways Motion StopPlate on the top of the Load Cell,which stabilizes the Ratio Beam. Ifnecessary, turn the black Up/DownStop Screw to allow the RatioBeam to clear. (See Figure 3-74.)23. Remove the Service Fixture andgently lift out the Ratio Beam.Figure 3-74. Two screws hold the SidewaysMotion Stop Plate on top of the Load Cell.The black Up/Down Stop screw holds theRatio Beam in place.The Load Cell is now completely disassembled.To reassemble the Load Cell, see Section 3.3.17, Reassembling Analytical Load Cells.Screw hole tofasten ContactBoard to RatioBeamScrews holdingSideways MotionStop PlateUp/down StopScrew