CHAPTER 1 GETTING STARTEDPioneer™ Balances Service Manual 1-1 Ohaus Corporation www.ohaus.com1.1 INTRODUCTIONThis service manual contains the information needed to perform routine maintenance andservice on the Ohaus Pioneer Precision and Analytical balances. The contents of this manualare contained in five chapters:Chapter 1 Getting Started – Contains information regarding service facilities, tools and testequipment, measuring masses, specifications, and the mechanical and electronic functions ofthe balance.Chapter 2 Troubleshooting – Contains a diagnosis/diagnostics chart and error code table.Chapter 3 Maintenance Procedures – Contains preventive maintenance procedures anddisassembly, repair and replacement procedures.Chapter 4 Testing – Contains an operational test, segment display test, performance tests andadjustments.Chapter 5 Drawings and Parts Lists – Contains exploded views of Pioneer balances andLoad Cells identifying all serviceable components.Before servicing the balance, you should be familiar with the Instruction Manual which is packedwith every balance.1.2 SERVICE FACILITIESTo service a balance, the service area should meet the following requirements: Should be temperature controlled and meet the balance specifications for temperatureenvironmental requirements. See specifications for temperature ranges of the variousmodels. Must be free of vibrations such as fork lift trucks close by, large motors, etc. Must be free of air currents or drafts from air conditioning/heating ducts, open windows,people walking by, fans, etc. Area must be clean and air must not contain excessive dust particles. Work surface must be stable and level. Work surface must not be exposed to direct sunlight or radiating heat sources. Use an approved Electro-Static Device.
