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Recent content by Herb40

Yesterday's Tractor Forums
  1. H

    MF275 live PTO cannot be shifted on

    OK, I'll get some help and try this. However, I'm afraid that the design of the chipper may negate the usefulness of this test. To get the chipper drum to rotate at 1500 rpm or so, while its input shaft from the PTO rotates at only 540 rpm, requires some type of gearing. That gearing is...
  2. H

    MF275 live PTO cannot be shifted on

    Thanks for your suggestion to try to make the two stage clutch slip under load. As you suggested, the engine was started with the chipper attached and the PTO engaged, and then revved up to normal PTO speed (around 1700 rpm) which brings the PTO up to about 540 rpm and the big chipper drum up to...
  3. H

    MF275 live PTO cannot be shifted on

    Yes, when I adjusted the rod and set the 5/32 free play, I did all the steps you listed. In #1above, I stated: "I adjusted the clutch linkage according to the MF maintenance manual, although I was never able to feel the second stage pedal point at which the PTO could be shifted. After multiple...
  4. H

    MF275 live PTO cannot be shifted on

    The clearance between each of the adjusting bolts and the secondary pressure plate were all measured today. It was a hot, exhausting afternoon with me being both the guy underneath the tractor trying to do the measurements and the one behind the tractor trying to turn the PTO shaft. Multiple...
  5. H

    MF275 live PTO cannot be shifted on

    True, but not normally available where we live. I searched for one in my aged tool box, but to no avail. A 14 mm wrench was right there in my metric wrench collection, so I tried it and it fit nicely. I have been working on this clutch problem for several weeks and don't mind spending a few...
  6. H

    MF275 live PTO cannot be shifted on

    As I stated previously in #26 about the finger adjustment bolts, the bolt is part 1 853 164 M1 and the nut is part 353 430 X1. Both are available online and appear to be 3/8 bolts whose heads would be normally be 9/16 instead of 1/2. But when I tried a 9/16 wrench, the "fit" was much too loose...
  7. H

    MF275 live PTO cannot be shifted on

    Thanks for sticking with me and for this new information. I am finally becoming more familiar with some parts of the dual clutch. Now back to the release levers whose adjustment is supposed to be made while the clutch is on the workbench (and supposedly cannot be made through the inspection...
  8. H

    MF275 live PTO cannot be shifted on

    I apologize, but I am confused. Am I supposed to be working on "Release Lever Height Adjustment" or "Secondary Pressure Plate Adjustment?" Or both? Both are described on the same page of my Jensales Service Manual in a section labelled "ADJUSTING DUAL CLUTCH." I thought it was Release Lever...
  9. H

    MF275 live PTO cannot be shifted on

    So far, I only know that one of the gaps is over 0.09 and two are less than my nickel (0.07). I need to get better organized, mark all three pressure plate finger arms to uniquely identify each bolt, and measure all three gaps. When the pressure plate is rotated so that the current bolt of...
  10. H

    MF275 live PTO cannot be shifted on

    I'm back after a short hiatus to catch up on chores around the house and outdoors, search for longer 1/2" open end wrenches, wait on wrenches to arrive, epoxy a nickel to a wooden dowel, check out the turning of the PTO shaft to expose the pressure plate bolts, etc. The PTO shaft can be turned...
  11. H

    MF275 live PTO cannot be shifted on

    OK, thanks. I did some checking and experimenting this morning and found the following: 1. I put the PTO in gear (lever back) and started the engine with the chipper attached. The PTO turned the chipper, as expected. When I detached the chipper from the PTO shaft, I was unable to turn the PTO...
  12. H

    MF275 live PTO cannot be shifted on

    You have me in a new ballpark here, speaking of making sure that the pressure plate fingers are in the right ballpark, in case they were not set properly when the tractor was split. So far, my attention has been solely on making sure that the second stage bolts are set properly. Where do I find...
  13. H

    MF275 live PTO cannot be shifted on

    After adjusting the clutch pedal linkage as specified in the MF manual, the pedal IS annoyingly high. The transmission does not engage until the pedal is almost fully released, with only a couple of inches to spare. I am in the middle of getting ready to adjust the release bolts. Yesterday, I...
  14. H

    MF275 live PTO cannot be shifted on

    Jim, thanks a lot for your skilled assistance in attempting to solve my problem, and for building my confidence that a solution may be available. I will follow your suggested remediation as soon as possible. The tractor is normally stored outside, on dirt, under a lean-to roof. The work will...
  15. H

    MF275 live PTO cannot be shifted on

    Thanks for the early morning reply today. I am responding this morning after putting the PTO through the test steps you suggested. I reset the clutch pedal free travel to the 5/32" called for by MF, after setting the linkage rod length to about 11-5/8". With this setting, the top of the clutch...
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