Recent content by Jim L.

  1. J

    Kubota B7100 wiring problems

    is there a way to test the new electronic module? 1. Assuming the alternator is functioning properly. 2. Overvoltage may indicate a bad connection. For example, earth. Cable jump around the suspect conductor(s). 3. Perform voltage drop tests to search for bad connections. Current thru a bad...
  2. J

    Kubota B7100 wiring problems

    The new charge light flashes more than a strobe system, but the alternator is now pushing 16.8 v into the battery. 16.8 volts will boil out the battery. It should be closer to 14 and something for charging. The charge light flashing says that something is still not shipshape. Connections and...
  3. J

    Kubota B7100 wiring problems

    I would expect to begin the trace from the regulator connector. Its pins are shown on the device with respective designators. IG, N, F, E, L, B. On the alternator, there is, or should be, a large bolt for +12 VDC. Also on the alternator, a plastic-body connector with several pins. Normally, one...
  4. J

    Kubota B7100 wiring problems

    When the tractor is running I am measuring 10.5v across the battery terminals. Not charging. With the posted pictures we get a better idea of what is there. On the back of the alternator, there is a connector. What markings are on the alternator identifying the pins on that connector...
  5. J

    Kubota B7100 wiring problems

    Bit of a recap on what is needed: Alternator brand and model number. Regulator brand and model number. Original was a 2-wire AC dynamo. 2 green wires. Original regulator essentially an AC to DC converter. Took 2 green wires from dynamo with AC. 1 wire, black, to ground. 1 DC output, red. With...
  6. J

    Tractor PTO Sensor Plug

    Likely a Yazaki or Sumitomo connector. For clarification, did the wire break or pull out of the contact? If the contact and connector were not damaged, an option is to just replace the contact with a new one crimped and soldered to the old wire. When you figure out the connector style, you can...
  7. J

    L3200 Valve cover removal

    There is a trick to getting the fuel tank off. You already have the hood (bonnet) off. Now remove or move aside the instrument panel bonnet. The big trick is to remove the tank with what is shown as figure L13001, Item 50, which supports the fuel tank. First disengage the electrical connectors...
  8. J

    Is a glow plug a glow plug...a glow plug?

    NGK and Bosch are well-known with good history. As pointed out, go to a good supply chain so that you minimize the chance of knock-offs. I would expect to pay about $20 each. Be wary of "really good deals" as you look.
  9. J

    L3800 2013 runs - craps out when HST pedal touched/pressed.

    Struck out…. Simple search off Model L3800 - keep getting 0 results. Model of L3800 should bring up choice of L3800H. If it doesn't work for you try looking at Coleman Equipment website under L3800H or L3800HST model. Or ask here for a part number.
  10. J

    L3800 2013 runs - craps out when HST pedal touched/pressed.

    I assume the HST pedal is out of alignment. Looking from the top of the tractor floor, the switch on the right of the upright pedestal, you should be able to move the HST pedal by hand with the tractor off, and watch the mechanical levers depress the switch button both forward and reverse. You...
  11. J

    L3800 2013 runs - craps out when HST pedal touched/pressed.

    L3800HST seat switch has three positions. Make sure PTO is set in OFF position. PTO actually has 2 switches in it. Jumpering without reading the schematic will cause problems due to mixed circuits. HST switch is physically found in the center pedestal on the right inside next to right foot...
  12. J

    Mice in Cab roof

    Spring traps baited with peanut butter; and rat zappers baited with peanut butter. This will be a forever thing. May try coyote urine on the tires. Another forever thing. You don't have to catch a coyote, you can buy a bottle of the urine.
  13. J

    New guy with starter problems

    Go to kubotabooks.com and click on the picture of a tractor. Under tractors find the file L3800 wsm.pdf. No cost. If that file is an operator's manual, ask back here. Starter should be under warranty from tech or parts supplier.
  14. J

    L3901 Bogging Down Under Heavy Load

    I wasn't aware that the Society of Automotive Engineers had a "set it on fire" test. I would get a second opinion.
  15. J

    Fuel delivery valve settings

    Go to kubotabooks.com and click on the picture of a tractor. Under tractors find the file L3200 wsm.pdf. No cost. If that file is an operator's manual, ask back here. One thing that the workshop manual (WSM) will help is a common vocabulary. Not sure what valves and locks we are talking about...