Posted by Jimb2 on June 13, 2010 at 17:02:00 from (99.240.236.11):
In Reply to: 3 pt hitch pt CORRECTION posted by john in pennsylvania on June 13, 2010 at 12:05:27:
Hi John, now we have to determine if the problem is caused by: 1)Clogged filters, see caseih.com parts 364 hydraulics page 5-04, item #3 suction screen and item #5 orifice filter? 2)Bad hydraulic pump? 3)3pt control lever not working?
Does tractor have a hydraulic aux outlet at the rear?
Some tests to do: 1)Place 3pt control lever at half way been up & down, then close the shut off knob at right side at front of seat. Next move 3pt control lever up about an inch, hopefully you will hear the hydraulic relief valve make a buzzing noise. Return 3pt lever to mid point and open the shut off valve.
2)Be VERY CAREFUL with this next test as the 3pt arms could raise very rapidly and drop rapidly. Make sure everyone is clear and any implement on the 3pt will not come in contact with tractor. With 3pt control lever at max up position, slowly move the draft control lever upward and see if 3pt will lift up.
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Today's Featured Article - Oil Bath Air Filters - by Chris Pratt. Some of us grew up thinking that an air filter was a paper thing that allowed air to pass while trapping dirt particles of a particles of a certain size. What a surprise to open up your first old tractor's air filter case and find a can that appears to be filled with the scrap metal swept from around a machine shop metal lathe. To top that off, you have a cup with oil in it ("why would you want to lubricate your carburetor?"). On closer examination (and some reading in a AC D-14 service manual), I found out that this is a pretty ingenious method of cleaning the air in the tractor's intake tract.
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