CHAPTER 3 MAINTENANCE PROCEDURESPioneer™ Balance Service Manual 3-35 Ohaus Corporation www.ohaus.com3.3.20 Block Style Load Cell Removal & Replacement with Load Cell kitUse the following procedure to replace a Block Style Load Cell using a Load Cell kit.1. Remove the Top Housing. (See Section 3.2.1.)2. Remove the Load Cell Shield by grasping the sides and pulling upwards.3. Remove the four screws and washers that secure Load Cell to the Bottom Housing.Remove the Load Cell.4. Disconnect the cable(s).5. Install the replacement Load Cell using the four screws previously removed andconnect the flexible cables.6. Replace the Load Cell Shield over the Load Cell. Press it firmly into place.7. Reassemble the balance.8. Follow the instructions in Appendix C for installing the Load Cell.9. Re-calibrate the balance following instructions in Appendix B, Service Calibration.10. Re-calibrate the balance following instructions in Appendix A, Standard Calibration.11. Check the performance of the balance using tests in Chapter 4.3.3.21 Progressive Disassembly of Block Style Load CellsUse the following procedures for progressive disassembly of Block Style Load Cells. When thedefective part is reached, replace it as described. But note that the procedures are not meant tobe stand-alone – you must complete each step.The following steps require the Block StyleService Toolset. (See Figure 3-98.)CAUTION:Exercise extreme care not to twist ordeform the Load Cell in any way. Donot drop or hit the Load Cell. Seriousdamage to the Load Cell can make itnecessary to replace the Load Cell.Figure 3-98. Service Toolset for Block StyleLoad Cells. PN 30020425.
