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What is Hand Arm Vibration? Hand Arm Vibration is the effect of long term or extreme vibration exposure from power tool use. It can result in the following medical conditions. vibration white finger carpal tunnel syndrome permanent and painful tingling and numbness in the hands and arms damage to bones in the hands and arms painful joints and muscle weakening Not too nice is it? It is estimated that hundreds of thousands have advanced vibration white finger. Minimizing HAV More modern tools are designed to reduce vibration. Some tools isolate the human contact zone from the vibrating parts - which is excellent. So in purchasing power tools for yourself or your employees consider this very strongly, not just to be a nice fellow but as far has health and safety go it is a sound investment. International codes have been implemented that require revealing the vibration level of a tool. The units of vibration are in meters/second/second. Try to avoid using tools above 2.5 Regular maintenance and tuning of tools will keep them operation at recommended level, and always give appropriate training in using the tool and using the right power tool for the job. Power tools are great and used safely they are even better. Easy Way to Troubleshoot Pump Problems Thomas Yoon 12f5 In any problem analysis, we have to specify the problem, check whether there is any deviation from the normal condition, identify the possible causes, evaluate the possible causes and then confirm the true cause. Pumps or other machinery will give tell tale signs when they are not working properly. An observant pump user will be able to avoid major breakdowns or damage if the problem is corrected early. In order to solve any pump problem, we need to notice the symptoms carefully so as to determine the most likely causes. Instruments like pressure gauges are very helpful and should be installed in the pumping system. Very often we do have to rely on our 5 senses to pinpoint the exact symptom. Normally, pump problems can be classified into Suction Related, System Related, or Mechanical Related. It can also be a combination of these. Most of the system related problems occur because of design flaw. For example, the designer may have chosen the wrong pump whose characteristic does not match the system requirement. Suction related problems are usually caused by air lock that are due to a variety of reasons... The effects of mechanical related problems could manifest themselves as suction related problems - air leaks in the system, worn out impellers, and mouth rings - but the most common symptom is the presence of vibration and abnormal noise in the equipment. DiagnoPump, pump troubleshooter has been created for pump users and sellers to help them find the solution quickly. Arranged so that the easiest (and often overlooked) causes are examined first, it could be a very useful tool. If you are a beginner, you can start the troubleshooting from the very first steps. More experienced users may want to start from the later stages in the symptom list. The symptoms have been identified to make it easy to zero in on the correct ones. The symptoms have been arranged as: 1. No Flow, No Pressure - No water delivered at all 2. Low Flow and Low Pressure - Pump does not deliver sufficient water or Pump does not deliver water after some time or Insufficient pressure developed 3. Short Lifespan of Shaft Seal or Packing - Shaft seal or Gland Packing does not last long 4. Short Lifespan of Bearings, Noisy Operation - Bearings do not last long or Vibration and noisy operation or Overheating of parts or Seizure of bearings 5. Pump Trips - Pump stops by itself or Excessive power consumption With this easy pump troubleshooter, anyone could easily pinpoint the causes in a very short time. The pump troubleshooter can be downloaded for FREE at http://www.free-marine.com/diagnoppad.htm The usefulness does not end there - any pump distributor or seller can also make use of it to sell their own product! They are able to insert their own names and Companies into the FREE software and distribute it to anyone they wish as goodwill. Attention Pump Professionals! Free Pump Troubleshooter available for download. Very easy to use. Just answer the logical questions by selecting either Yes or No, and you will be able to pinpoint your pump faults quickly. No experience necessary. Ideal for beginners and seasoned professionals alike. Saves valuable time. /www.free-marine.com/diagnoppad.htm target=_blank>http://www.free-marine.com/diagnoppad.htm>Pump Troubleshooter About the AuthorMany years of working experience in Marine, Facilities, http://www.aaarticles.com/article21354.html | ||||||||||||||||||||
