OHAUS VALOR 4000 Service Manual

Also see for CS 2000: User guide Instruction manual Operating manual Operating manual Operating manual

OHAUS VALOR 4000 Service Manual Manual pdf 25 page image

CHAPTER 3 MAINTENANCE PROCEDURESOhaus Corporation www.ohaus.com 3-4 Valor™ 2000/4000 Series Service Manual3.5 Removing/Replacing the Load CellA Load Cell that is even slightly bent or corroded should be replaced. The Load Cell may alsoneed to be replaced because of instability, or because the scale does not calibrate or repeat.Note: The Load Cell is sold separately. (See Chapter 5.)1. Unplug the cable leads connecting the Load Cell to the PCB. (See Figure 3-2.)Remove the bolts that hold theLoad Cell Frame to the LoadCell. Use a high-leverage Allenwrench.Note: There is a shim betweenthe Load Cell Frame and theLoad Cell. Be careful not tolose it. (Applies to AMI-3.5kgand all Zemic load cells.)2. Turn the scale over andremove the bolts andwashers that hold the LoadCell to the Bottom Housing. Figure 3-4. Remove the bolts holding Frame to theLoad Cell.3. When installing the replacement Load Cell place the new load cell on the BottomHousing’s cavity where the two Load Cell bolts are inserted. Insert the small coverscrews and tighten them.4. Position the shim and Load Cell Frame on top of the Load Cell. Insert the bolts andand tighten them. (See Table 3-1 for torque settings.)5. Connect the Load Cell cables to the PCB. (See Figure 3-2.)6. Use glue to seal the connector.