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  1. J

    B2601 3rd function switch repair

    Thanks Jim for verifying. I believe the part number that I need is YB16WCKW01-5F12-JB. This is the bright not super bright led with 12v resistor built in. Is there another switch you recommend? I have been considering that too, the hole is 16mm round. Datasheet cutout diameter is 16mm. The...
  2. J

    B2601 3rd function switch repair

    When you follow the above link to Digi-key, look at the data sheet. 6F means a superbright LED, green, without a resistor. The user would have to add their own calculated resistor. There are other options in the ordering number to go to 12vdc with the resistor built-in. JB is for a lens that...
  3. J

    Dim control panel KX41-3v

    Sorry, not good news. The meter itself for that S/N was a Kubota RB237-53113. That was superseded by RB449-53113, new was $983. That's been superseded by RB449-53114 now priced around $1,250. If this part had been in a recall, I would think the deadline is long past. The brownish wrinkled...
  4. J

    Dim control panel KX41-3v

    The display for that machine depends on its serial number. It could be dirty contacts; or, some displays lose brightness over time. Get us the machine serial number, then we can look up the display part number, and get a ballpark price on replacement.
  5. J

    L2800 battery connection terminal

    My observation is that it is time to replace the big-wire cable. The battery termination could be cutoff and a replacement clamped on, but it will not last long. The next best would be to crimp a connector; but that would take a professional crimp tool and heat shrink. A professional tool will...
  6. J

    B7500 Instrument Panel Circuits Oxidation Help

    What is best glue to bridge my phone wire across bare pcb copper trace? Something like MG Chemicals 8331 or 8330 in 6ml syringes. Needs to be highly conductive, and able to standup to hot-cold, vibration. You can go too cheap and the adhesive will flake away in conditions outside of living...
  7. J

    B7500 Instrument Panel Circuits Oxidation Help

    What release tool works 2 remove terminal pins on B7500 wiring? Look through automotive and motorsport connectors to find a manufacturer and connector type that matches your connector. Then you will find the manufacturer's pin tools, either metal or plastic. If no luck on that, pins are held...
  8. J

    B7500 Instrument Panel Circuits Oxidation Help

    Is there a way to bridge broken copper pcb traces? Yes, use ohm-meter to fault-isolate any breaks. Mark up picture of panel with good and bad so that you don't get confused. Breaks can be fixed by cleaning the copper trace, acid-free soldering a bare copper wire across the break, and then...
  9. J

    L3400 wont start

    Not knowing any of the past history, help fill us in. Have the injectors been tested? Valve lash ever been adjusted or checked? Cylinder compression been measured? For sure will not light off without heat of compression. Air intake open and clean? Hours on it?
  10. J

    How much does it cost an hour to operate mx5400

    Texas Ag custom rates show about $50 an hour to rent. Does not include fuel or operator. A real rate would depend on hours per year, and such fixed expenses as insurance.
  11. J

    Synthetic or Conventional motor oil in Kubota diesels

    Unless the engine gets a lot of hours put on it, probably more important is to change the engine oil at least once a year. My generators need an easier start in cold weather so then I switch to a synthetic for easier cold start. But my tractor is not an everyday, 10 hours a day machine. So I...
  12. J

    AC/Heat issues

    Is it possible that the two heater hoses attach up by the engine thermostat housing?
  13. J

    Electrical Connection

    A lot of the connectors can be had from motorsport shops. You're looking for Japanese automotive/motorcycle type connectors. The more sophisticated automotive plugs have to be matched on websites for Allied Electronics. digi-key, mouser, etc.
  14. J

    AGM Battery? Is it worth it?

    Probably not worth the extra effort. Lead acid battery will work OK from an alternator and simple regulator. AGM is more fussy, and typically uses a three-stage charger at different charge voltages. I have AGM batteries not in a vehicular application and they have a charging regulator that is...
  15. J

    New tractor grease

    Another key consideration is that by greasing every 10 hours grit and dirt are pushed out of the contacting surfaces. May be more important than the brand of grease.
  16. J

    Antifreeze

    O'Reilly brand name ethylene glycol is colored green. AutoZone has a green color ethylene glycol under its brand name.
  17. J

    L2501H Shuts off when I stand up off seat ? Safety Switch ?

    I'm not looking at your schematic, but the double switches usually have one switch hot, and the twin switch ground. Jumpering the switches at random will blow fuses. You'll need that schematic for the pin-outs. The seat switch would seem to be working since when you get up the engine kills...
  18. J

    Thread Sealant on Head Bolts

    Light coat of engine oil on head bolt threads. The reason is that the torque settings assume the light coat of oil. If they're dry, they won't set at the correct torque.
  19. J

    Air filter constantly loosens

    Something has to maintain tension or compression, or friction. Jam nut, safety wire, cams... Maybe a picture would help us.
  20. J

    Another Kubota AC issue

    I'm sorry to hear that the A/C is misbehaving. TXV is a thermostatic expansion valve. Means that instead of just an orifice turning liquid to vapor, it has feedback to measure the right amount under different conditions. Pressures need to be taken with their corresponding ambient temperature...