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Piedmont Chapter 14, Vibration Institute Meeting December 5, 2008 Midlands Technical College West Columbia, SC Introduction and Timing Jeremiah JB Bacon C.L.S PetroLiance, LLC Presentation should take about hour What is Contamination? ANY FOREIGN MATERIAL THAT ADVERSILY AFFECTS THE OPERATION OF YOUR EQUIPMENT Wrong Oil Chemical According to Vickers The ROOT Cause of UP TO 80 % of Hydraulic Failures Are caused by CONTAMINATION It Effects All Forms of Equipment SKF Quote Under special operating conditions, bearings can attain a much longer life than predicted by normal life calculation methods These special conditions are when the rolling surfaces are effectively separated by a lubricant film and when the surface damage caused by contaminants is limited limited In fact, under ideal conditions, it is possible to speak of infinite life Vickers Quote Proper selection and placement of contamination control devices in a system to attain the targeted cleanliness eliminates (the root cause of) up to 80% of hydraulic system failures SKF Bearing Maintenance Handbook Vickers Guide to Systemic Contamination Control Why Is Cleanliness So Important? Typical bearing application Oil Thickness is 0.1 to Microns h Lubricant Load Zone Pressures Can Be Greater Than 100,000 PSI Contamination Destroys Equipment Micron Particle Abrasive Wear is the most common type of wear The Life of a Typical Hydraulic Pump The life of a typical hydraulic pump can be predicted based on the amount of contamination that passes through the pump during its life 50 gpm Pump ISO 21/18 1750 lbs/Yr Yr Pump Life ISO 14/11 50 lbs/Yr >14 Yr.Pump Life What Size Particles Are We Talking About? What size particle can you see? Table Salt 100 µ Human Hair 70µ Lower Limit of site ~ 40 µ Flour 25 µ White Blood Cell 25 µ Red Blood Cell µ Wh a t Si ze Pa r t i c l e Wi l l Ca u s e A Pr o b l e m ? Micron = 000039 INCH 15 µ 1µ Contamination in a Hydraulic Piston Pump What does it do? The abrasive wear from the particulate damages the swashplate, piston shoe, piston, cylinder wall, cylinder block and valve plate Particulate can clog the piston shoe opening Proper Storage and Handling If it must be outside TILT DRUMS PLASTIC COVERS Proper Storage and Handling Dispensing containers should be sealed too Mixing Different Oils is Contamination Too! Containers should be sealable Containers should be utilized for single family lubricants to avoid cross contamination Should be tagged and color coded to minimize lube cross contamination Tag Lubrication Points and Dispensing Equipment Tag the equipment to help ensure that the right lubricant is in the right place Use Routine Filtration Filter carts should be used to clean oil in systems and storage containers routinely The easier it is to use the better Filter oil as it goes into a system Be careful filtering multi-grade products Most filters designed to clean oil can strip VI Improvers out For Multi-grades use filters that are 10 micron and up Flush between product changes Storage Containers Use particulate breathers on bulk tanks, totes and drums Utilize pumps for each product family Using a single pump to pump multiple product families will ensure cross contamination Drum with desiccant breather and adapter kit Use System Adapters Where Possible Drum Adapters and Quick Connects allow for quick, easy connections for your filter cart Install Quick Connects on Systems to allow for quick connections which makes it easy to use the filter cart Use a Filter Cart with a bypass system and Quick Connect Couplings Bypass allows for use as system evacuation pump or oil transfer A Little About Filtration Filter Rating Terminology Nominal Rating - Rates size of pores in filter (5 micron nominal) Absolute - Gives Largest opening in media Beta Ratio/%Efficiency - How many times through the filter before all particles of certain size are removed Filter Sizes Conventional System - 10 to 25 micron Absolute N/C and Servo Systems - to micron Absolute Know Your Filters The Multipass Filter Performance Test, ISO 4572, is the most recognized standard for rating the ability of a filter to efficiently control contamination The results of this test are reported as the ratio of the number of particles greater than a designated size upstream of the filter to the number of particles greater than the same size downstream of the filter This rating is the Beta Ratio Know Your Filters Know Your Filters Example on the previous slide above: (Number of Particles Downstream ÷ Number of Particles Upstream) X 100 = % Efficiency (100 ÷ 200) = x 100 = 50% Efficient (199 ÷ 200) = 995 X 100 = 99.5% Efficient Seal the Systems, Look out for Hose and pump trash; Cap the end of hoses and pumps Bad environments may require positive pressure (air padding) Cap grease guns Clean grease fittings before use External Site Glasses On Pumps Can Help Detect Problems Provide Contamination Control Training Increases employee awareness and efficiency Reduce Your Costs Extend Lubricant and Equipment Life Through Contamination Control ...Introduction and Timing Jeremiah JB Bacon C.L.S PetroLiance, LLC Presentation should take about hour What is Contamination? ANY FOREIGN MATERIAL