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Article Comments
Comments for Hydraulic Basics, Part Two
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The Red wrote on Thursday, June 01, 2000 (PDT):
  • Good tips Curtis. I can sure relate to hydraulic leaks on my JD 4400 combine!!
    Teri wrote on Thursday, June 01, 2000 (PDT):
  • great article Curtis!! we really need the info and the help on our problems here!! we'll look for more from you in the future!!
    Shawn Solderitch wrote on Tuesday, June 06, 2000 (PDT):
  • I have a backhoe on a 56 ihc 330u. Just bought it before winter. two cylinders poured out oil, one was a boom swing so I had the pair rebuilt and new rods, the other was the crowd cylinder, the bore was scratched and rod was bad, the only thing salavaged was the clevis and rod end. Now that I spent major money I will be draining the system adding a filter with bypass gauge and will also be adding a sight glass level/temp gauge in the tank. I have a 20 gph system but I bought a 50 gph filter. they had filters from 3 to 25 microns (I bought 10)What do you recommend? I will change the first filter soon. The second ? is how critical is temp, I was told not to go above 200 degrees, I was also told cold weather (snow removal) can also cause pump problems?
    Shawn Solderitch wrote on Tuesday, June 06, 2000 (PDT):
  • In addition to previous message; The filter in on the return line. I was told to drain the system was to extend everything, shut down motor, drain tank and then open the valves and then let gravity lower the boom, etc., thus draining the other side of the cylinders. Is that the best way?
    Dick Hostetler wrote on Friday, June 16, 2000 (PDT):
  • Truly an outstanding article. Well done and most informative.
    WILBERT KROHE, JR. wrote on Sunday, June 25, 2000 (PDT):
  • YOUR ARTICLE ON HYDRAULICS WAS VERY INFORMATIVE. KEEP ME POSTED ON ANY AND ALL FUTURE ARTICLES OF THIS SORT. THANKS AGAIN AND KEEP UP THE GOOD WORK!!
    Bob wrote on Monday, January 08, 2001 (PST):
  • Great information, just the kind of site I've been looking for. Own a MF 65. Would like to talk to others with same. In addition I am looking for information on electronic control of the tractor's hydraulics and power steering. Thanks in advance.
    Greaseman wrote on Saturday, February 23, 2002 (PST):
  • Very good article, keep them comming, I would like to see where a person could add a filter assembly to a smaller hydraulic system.
    fife wrote on Wednesday, September 18, 2002 (PDT):
  • I just bought an old Allis Chalmers WD Just wondering what type of Hydraulic oil I should buy for it.
    W R wrote on Thursday, April 19, 2007 (PDT):
  • Very interesting and informative article.
    oilpure wrote on Monday, April 02, 2012 (PDT):
  • Usually, most waste lubricating oil just contaminated with water, gases and kinds of impurities when it was used on machines, some are emulsified and change its color into white, looks abnormal from new lubricating oils. Anyway, this kind waste lubricating oil still can be reused after purified with lubricating oil purification machine

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    Today's Featured Article - Hydraulic Basics - Part 2 - by Curtis Von Fange. In the last entry to this series we gave a brief overview of hydraulic system theory, its basic components and how it works. Now lets take a look at some general maintenance tips that will keep our system operating to its fullest potential. The two biggest enemies to a hydraulic system are dirt and water. Dirt can score the insides of cylinders, spool valves and pumps. Wate ... [Read Article]

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