kinda late to this party, but I'll chime in.
the Dynamo on my
B2400 siezed first of August, belt just slipping over the pulley, no idea how long it had been doing it, only noticed it when I opend the hood to blow out the radiator and screen ( burning rubber smell gets your attention kinda quick..... )
I'd been planning to swap in an alternator, just waiting for the time, well, now was the time, I had a 40amp Nippon Denso alternator from a Toyota forklift, ( I repair forklifts ) mild massaging of the upper mount, some playing around with spacers and a longer belt, the alternator bolted right in, but I didn't have time to wire it in..... and it had a 3 wire plug VS the 2 wire that the Kubotas use.
Last week I finally wired it all up, but I had been using it since August total loss, never put it on charger, mowed several times, used the loader a few times, the alternator was pretty much a belt tensoner at that point, just to keep the water pump and fan turning.
not once was it on the charger, though it did start turning over a bit slow the last time before I finally wired in the alt.
now that it is charging, it starts faster and better than it ever did on the dynamo, it's actually getting 13.7v to the battery while running, instead of 12.5v.
I will tell you, you're way more patient than I
Warranty or not, it would have been repaired and back in my hands, and in operation. that alt can be rebuilt at any motor repair shop for about $150ish, less if you know what parts you need and can do it yourself.
I have little patience for "lack of parts", it even makes me mad when my own employer does it, I will do anything I can to make the machine useable until the part comes in, though, sometimes it's not possible/feasable. most times if the machine is down, it's not more than 24hrs. an alternator shouldn't leave a machine down longer than that, reguardless if you use it as a toy or as a work tool.
I have pulled parts off of NEW forklifts to get something going, and ordered that part back. Alternators, hyd cylinders, bearing hubs, LP regulators, seats, I have no problems doing that, though some sales guys at my dealership get a little queasy when I/we do it.
Our parts dept stocks only parts that have sold in the last 6mos, everything else is stocked either at our main corperate warehouse or ordered factory direct ( or aftermarket if available and the customer is willing ) most itmes next day. heavy items (over 10lbs) are not next day ship, too expensive. it is pretty frustraiting.
