OHAUS PA64 Service Manual

Also see for Carat PAJ1003: Instruction manual

Contents

OHAUS PA64 Service Manual Manual pdf 48 page image

CHAPTER 3 MAINTENANCE PROCEDURESOhaus Corporation www.ohaus.com 3-24 Pioneer Balance Service Manual3.3.16 Disassembling Analytical Load CellsFigure 3-61. Vertical Flexure and screws,Lock Plate, washers, and bushings, removedfrom center of Hanger. Note the different-sizedscrews and bushings for top and bottom.Also note the elongated hole on the bottomside of the Vertical Flexure.8. Carefully loosen and remove the four screws that secure the Top Flexure Arm to theLoad Cell, and remove the Top Flexure Arm. (See Figure 3-62.) Place the FlexureArm on a flat surface. Note that the Flexure screws on the Analytical balances havetwo washers each: a thicker silver-colored one on the bottom, and a smaller blackone on top.Figure 3-62. Top Flexure Arm (Analytical). Figure 3-63. Bottom Flexure Arm (Analytical).9. Turn the Load Cell over and remove the four screws that secure the Bottom FlexureArm to the Load Cell, and remove the Bottom Flexure Arm. (See Figure 3-63.)Place it on a flat surface.NOTE:When handling the Flexure Arms, be careful not to bend the Flexures.10. Carefully examine each Flexure to see if it is bent. If uncertain, place the Flexure ona clean flat surface and check that both sides rest evenly on the surface. If a Flexureis bent even slightly, it must be replaced for the balance to operate properly.Top Flexure Arm Bottom Flexure ArmTop Bushing Top ScrewLock PlateElongated holeon bottom Bottom Screw