Hello, I'm having a problem with my Kubota B6000. It's not charging any current at the battery terminals. I've disassembled the dynamo and cleaned the magnet. Now I don't know how to check if it's working properly and can use a multimeter to check the three wires. I put a light bulb between them and it turned on, but I'm not sure if it's enough. If I can't fix it, I may have to buy another one. If you know of a purchase link in Spain, I'd appreciate it. It has corrosion. I've attached a photo. P.S.: In the photo, you can also see the block with signs of corrosion. There's a large duct on the left and a small one on the right. I don't know if this is the case or if it's clogged. Thanks for your help.
Kubota B6000 charging problem
- Thread starter Jesús
- Start date
85Hokie
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To check your dyno - If you have it off, place in a vise and use a drill and socket to spin it, otherwise place on the belt and have the wires in hand and start.
PLACE your meter on AC volts - NOT DC - and let her spin.
AS for the wires - I do not remember the colors of each, but taking any two will get a voltage - or not,
you should read somewhere above 30 volts AC ...... if this checks out, then your rectifier is suspect.
PLACE your meter on AC volts - NOT DC - and let her spin.
AS for the wires - I do not remember the colors of each, but taking any two will get a voltage - or not,
you should read somewhere above 30 volts AC ...... if this checks out, then your rectifier is suspect.
85Hokie
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no...that would be bad. TYPICALLY dynos are bullet proof - did you try combos of the wires?
Russell King
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85Hokie
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I am guessing here , but the pulley on the crank is a bit bigger than the dyno pulley - so at high idle I would say 2500 rpms would be a good test rpm. Just a guess
GreensvilleJay
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To properly test, you'd need a 'burden' resistor to simulate a 'load'.
Say you want 5 amps at 14 volts, you need a 14 v / 5 a = 2.8 ohms resistor rated for 70 watts. In this case I'd use a 3 ohm, 100 watt resistor.
Unburdened the voltage will be higher......
Say you want 5 amps at 14 volts, you need a 14 v / 5 a = 2.8 ohms resistor rated for 70 watts. In this case I'd use a 3 ohm, 100 watt resistor.
Unburdened the voltage will be higher......
Russell King
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I think since it is corrodEd on that water connection point, AND it is not charging you might be better off replacing it if you can find one.
@Mountainman runs this salvage yard and I think I have seen statements that he ships worldwide. I think you may be able to get one from the Kubota dealer in Spain or Europe but no idea who
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Thank you sir. I do ship worldwide but unfortunately don't have a b6000 dynamo right now. Hard to come by these days
Russell King
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Ok thank you for replying to this!
@Jesús I guess you should try to locate it elswhere or maybe build that corroded section back up or just use the casting as is, if the hose can still be attached in a working manner