b'EQUIPMENT MAINTENANCEHigh vibration wire screens can be especiallyOnce the preventative maintenance is completed,Aggregate processing operations must take advantageous in the winter because frozenits time to get the screen box diagnostics checkedsteps to maintain productivity and minimize material tends to plug or overload screen decks and evaluate the power transmission components maintenance costsREPLACE WORN COMPONENTS CHECK CROWN BARSNext, inspect and replace wear parts. Screen media with brokenMake sure all screen box decks have a continuous and proper crown wires or visible damage around the edges should be switchedcurve to ensure the proper tensioning of the screen media. Damaged out. Also inspect screen media hardware. Check the conditionand improper crown bars will lead to premature failure of screening of the threads and heads of shaker bolts and clean additionalmedia, making the offseason the ideal time to check and rebuild crown build-up.bars. Damage caused by a season of high production combined with quick fixes will lead to higher rates of unscheduled downtime and Examine the clamp bars for excessive wear and replace anymaintenance costs next season. Check with the OEM or the Owners that are wearing thin or caving in order to improve the wearManual to ensure proper crown bar heights are maintained.lifeofscreenmedia.Addinglinerstotheclampbarscan further longevity by avoiding metal-to-metal contact. It is bestADDITIONAL TRAININGto purchase componentslike clamp barsdirectly from the original equipment manufacturer (OEM) to ensure they meetIf the operation is shut down for the season, take advantage of exact specifications for the screen box. offseason training provided by equipment suppliers on important parts of the operation. This could include training from a screen POWER TRANSMISSION AND SYSTEM DIAGNOSTICS mediamanufactureroncorrectscreenmediainstallationto maximize longevity, or what to look for to know when a screen Oncethepreventativemaintenanceportionofthewinterchange-out needs to be made to prevent unscheduled downtime.maintenanceiscompleted,itstimetogetthescreenboxTake advantage of the cold season to give screen media a thorough diagnosticscheckedandevaluatethepowertransmissionexamination. Evaluating screen choices, keeping an eye on wear and components. Some manufacturers offer innovative diagnosticcompleting preventative maintenance will go a long way toward tools that quickly measure screen box stroke, g-force, and RPMhelping the bottom line, whether screening will continue through against the factorybaselinesettings. Also, look at the sheavesthe winter or stop until spring.and v-belts that drive the plant. Oftentimes replacing these parts in the off-season will be worth the savings from preventing theLars Brunling is the director of product technology at MAJOR, a Partner downtime of an in-season failure. of Haver & Boecker Niagara.WINTER 2022AVENUES 19'