BX24 electrical system stinks on ice

[fishpick]

I have posted before about the blowing fuses on the BX24 and other random electrical issues... well - had a new one the other day.
Started up the tractor - did a little moving around with the FEL - and when backing it in to park - it just dies. Instant stall. Humm - well - wonder what that was?
Restarted fine... finished backing up the last 2 feet and turned the key off. The Kubota remained running... Yup, great.
OK - fine - turn the key back on - 1/2 twist - glow light on - tractor still running, turn off, still running, remove key... still running...
Dissemble the battery cover that has never fit right... still running... pull fuse box cover and pull the 10A timer fuse - yup - blown... grab the spare 10A fuse... still running... plug that replacement fuse in... tractor shuts down. Now starts and stops as one would expect with the key. Yea Orange.
That's a well designed electrical system FOR SURE!

 

[radioman]

at least you got it figured out before retorting to guesses from others. :thumbsup:

Hey i got an idea, since you are tired of electrical issues on your BX, just drop it off in my driveway and run

 

[fishpick]

@K7LN - The most amazing part is - this dang tractor has a safety switch for EVERYTHING... it's beyond annoying... yet - this fuse blows and you you CAN'T turn it off... ugh.
@radioman - it's worth more to me with a leaky fuel pump parked in an old shed with bags of fertilizer... Thanks for the offer though!

 

[dkf435]

What you fail to understand is that most diesel engines need 0...(zero) electricity to run and the solenoid is only powered to kill the engine. The click that you hear after the engine stops is the stop solenoid releasing. The Kubotas use a timer relay that energizes the solenoid when the circuit is interupted ie( key, seat switch etc). One problem is that the wires going to rear of tractor for the work light is on this circuit and gets shorted by being pinched by debries or overloaded by too many lights connected. This causes the fuse to blow and the circuit to collapse triggering the stop solenoid. You could disconnect it all and just put a pull wire on the stop lever but this does not make the goverment regulators happy so Kubote has to be somewhere in between.

David Kb7uns

 

[fishpick]

@dkf435 - Thanks for the vote of no confidence in my understanding of diesel engine operation... my point is rather simple - Kubota's electrical system on their BX24 stinks on ice.

 

[rdsaustintx]

What you fail to understand is that most diesel engines need

No, actually it is apparent he understands quite well.

The worst electrical problems are the intermittent ones. Good luck Fish...

 

[Skyco]

One problem is that the wires going to rear of tractor for the work light is on this circuit and gets shorted by being pinched by debries or overloaded by too many lights connected. This causes the fuse to blow and the circuit to collapse triggering the stop solenoid.

Not according to the service manual. The work light circuit is on its own 20 amp fuse and is the only thing on that fuse...
Of course the manual could be wrong...but thats what it shows in the schematic.

I think the vast majority of us have had no electrical problems from the BX24s...I know I haven't, knock on wood.

 

[David_Kb7uns]

Go back far enough and you will find posts where people did connect lights to the connectors under the seat on some of the BX tractors and that circuit is tied to the fuse for the timer relay, may be changed on newer one.

David Kb7uns

 

[Skyco]

Go back far enough and you will find posts where people did connect lights to the connectors under the seat on some of the BX tractors and that circuit is tied to the fuse for the timer relay, may be changed on newer one.

David Kb7uns

No doubt people have hooked to "the connectors under the seat" but we don't know if they hooked to the correct ones
I think Bxpanded alluded to this recently about people blowing the shut off/safety circuits fuse when they get the wrong wires/connector.:ashamed:

 

[tommu56]

I have posted before about the blowing fuses on the BX24 and other random electrical issues... well - had a new one the other day.
Started up the tractor - did a little moving around with the FEL - and when backing it in to park - it just dies. Instant stall. Humm - well - wonder what that was?
Restarted fine... finished backing up the last 2 feet and turned the key off. The Kubota remained running... Yup, great.
OK - fine - turn the key back on - 1/2 twist - glow light on - tractor still running, turn off, still running, remove key... still running...
Dissemble the battery cover that has never fit right... still running... pull fuse box cover and pull the 10A timer fuse - yup - blown... grab the spare 10A fuse... still running... plug that replacement fuse in... tractor shuts down. Now starts and stops as one would expect with the key. Yea Orange.
That's a well designed electrical system FOR SURE!

I haven't looked but can a choke cable be rigged to the soleonid as a shut off like some construction equipment has?

tom

 

[fishpick]

I have no "special" special rigging on my tractor anywhere - the electrical system just hates me. I have bought lots of new fues for 10, 15, 20... so - I'm fine now...

 

[David_Kb7uns]

I haven't looked but can a choke cable be rigged to the soleonid as a shut off like some construction equipment has?

tom

Depends on the engine, if it has the external solenoid that just retracts to pull the stop lever, then yes you can. However, some of the Kubota engines have an internal solenoid that mounts by the pump and the plunger goes to the rack and they have two coils, one is energized for run and the other is energized to stop the engine.


David Kb7uns

 

[David_Kb7uns]

I have no "special" special rigging on my tractor anywhere - the electrical system just hates me. I have bought lots of new fues for 10, 15, 20... so - I'm fine now...

I would be going over all the wiring, have heard of pinched wires in the rearend area before caused by poor routing or stuff getting jamed up against it.

David Kb7uns

 

[radioman]

I haven't looked but can a choke cable be rigged to the soleonid as a shut off like some construction equipment has?

tom

I don't see why not? The solenoid is sitting right there on side pointing downward a bit to operator. I just don't see why you should bother. just open hood, stick your hand in there and give it a push in. I just tried that and no biggie. shuts right down.

 

[Dick Calland]

I have minimal automotive or electrical knowledge; how many fuses of what kind(s) are used on the BX24 and where are they located ? I have 9 hours on my BX24 so please excuse my lack of experience.

 

[KubotaSam]

I haven't looked but can a choke cable be rigged to the soleonid as a shut off like some construction equipment has?

tom

Everything that's old is new again!! All of the old diesels shut off with a manual fuel shut off not an electrical solenoid.

 

[megaboz]

One would think that the safety would work in the opposite direction if one were to blow a fuse. If the fuse was blown and you didn't know it and then you rolled it, would it actually shut off?

 

[radioman]

I have minimal automotive or electrical knowledge; how many fuses of what kind(s) are used on the BX24 and where are they located ? I have 9 hours on my BX24 so please excuse my lack of experience.

take a look! As you sit in the seat, take the knob off under the steering wheel that holds the screen and pull screen out. On the right hand side on the metal post next to battery is a black plastic box. Push in the tabs at top and bottom and pull out. You will see the fuses there . :thumbsup:

 

[fishpick]

One would think that the safety would work in the opposite direction if one were to blow a fuse. If the fuse was blown and you didn't know it and then you rolled it, would it actually shut off?

That was kinda my point - this tractor has so many "safety features" that this is just silly...