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  1. Repair & Technical Discussion
    I’m repair circuit boards, but I admit, I do mostly newer technology with surface mount components. A customer brought me an instrument panel board with a non working tach. I have identified two components that need to be replaced. One of them has broken legs, labeled “x1,” and on the component...
  2. Case / Farmall - International Harvester
    Hello, first post, hope I'm in the right spot. I have an International 385 diesel tractor and the tachometer stopped working. I took it apart and the insides were frozen, looks like some water got in there and rusted pretty good. I tried to get things to loosen up, sprayed with oil and tried to...
  3. John Deere
    Hi All, I have a 2009 JD 3320, ~850 hours. Yesterday the tachometer became erratic. Doesn't reset to zero when turn engine off. When I shut engine off, the needle stops at about the 18,000 mark. Then when I turn the engine back on, it moves from there as if 18,000 is the zero mark. I can tell...
  4. Repair & Technical Discussion
    Hello All! I have a subcompact TYM tractor. Just completed the 150hr servicing on it. Has been running great but the tachometer no longer works. When the tractor is off it shows it's RPM at 40. The tractor runs great with the exception of the tachometer. Im assuming it's a loose or broken wire...
  5. Other Big Tractor Forum
    Hi there. I have a 1968 David Brown 880 selectamatic and wondering if anyone knows where the tachometer cable goes on the tractor. It's not on the dynamo. And I can't see a spot for it. Thanks
  6. Case / Farmall - International Harvester
    Hello all, First time posting, hoping to get some troubleshooting help with the digital tach on my 1586. It is the style with the multiple push buttons. Right now the digital display works, and all the buttons work. However, the readouts are not right, for instance the tach reads 380 all the...
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