as on July, 2012 - til india

14S O S SMsamples should be taken for alll lfluids. When it’s performed regularly,coupled with expert interpretation, itwill help lower maintenance costs.Combined with S O S SM , effectivel lcontamination control reduces breakdownsand <strong>as</strong>sociated costs. Keeping machinesystem clean eliminates component wearand improves system efficiency andresponse under varying loads.Because 80% of hydraulic system failurescan be traced to contamination, here aresome tips that will help you focus oncleanliness.Types of ContaminantsllllAbr<strong>as</strong>ive particles like aluminium andsilica cause sticky valves and poorpump performance.Water in hydraulic fluid forms bubblesthat pit internal component surfaces.Air in the system causes jerky motion.Heat reduces the lubricity of hydraulicfluid, accelerating component wear.Sources of ContaminantsllllExposure to external environment viaworn seals, faulty g<strong>as</strong>kets, leakyvalves or defects in cylinder rods.Internal wear due to insufficientlubrication or improper clearances.Installing new components, like dirtyhoses.Adding fluids that were stored in dirtycontainers.Controlling ContaminantsllUse particle counter to <strong>as</strong>sess thecleanliness of the fluid before and afterfiltration.Flush a dirty system and fill it withnew fluid.Use these simple t<strong>as</strong>ks and derivesignificant impact on your hydraulic systemefficiency.Contamination control and SlOlS SM analysisare two very effective ways you canconsider to improve your machineavailability and performance. Performedat regular intervals these take minimumtime and cost but have huge returns onyour investment.lllllCheck the machine for leaksduring daily walkaround inspection.Use proper filters and change themregularly.Use proper hydraulic fluid, filtering itwhen transferred between storagelocations.Use desiccant breathers on fluidstorage containers to prevent waterand contaminant ingression inside thesystem.Remove contaminants from a dirtysystem with kidney loop mobilefiltration.Contributed byDr. Deb<strong>as</strong>ish MukherjeeIn-charge-Scheduled Oil Sampling Lab, TIPL