kubota won't warranty anything if you take parts to them and tell them to weld it up. That is a cold weld, or a dirty weld (or both). Most of it is done robotically nowadays. What little bit is done by a real person, that person has a quota. If a part comes through that needs a little weld, and he's behind or close to getting behind and the part is contaminated, or the welder has an issue (ground, etc), he's gonna throw some dirt dobber's nest of a weld on it and send it. Unfortunate but that is how production works. I've done it in the past and have seen lots of this kind of thing.
if they feel like it is indeed a warranty issue, they'll replace the part. The entire part. They don't want nobody welding anything. Been there done that. Denied claim because "I" repaired a loader, similar to what you have there (broken kick stand pin). Not a big deal, was only a couple hundred dollar once all the paint + dealer fees were added + labor, but the fact that they (kubota) denied it because it was "modified" (welded) kinda upset me--and the customer--and the dealer I was working for. I left the dealer, but I "heard" that they eventually paid it. Dunno.
yes you have to take the equipment that has the serial number to the dealer and let the dealer send pictures to kubota. Then kubota decides whether or not they're gonna fix it. Part of the picture-taking process includes picture of the hourmeter, so if it's a loader, a loader doesn't have an hourmeter and they will almost always deny the claim if the requested hourmeter picture isn't there. So take the tractor with the loader installed on it; it's easier than taking just the loader anyway. They want pictures of everything now and this goes with all warranty claims. For instance, don't show up with a locked up idler pulley expecting them to warranty it, they'll send you home to get your machine that the pulley came off of, or they'll sell you a new idler pulley. The booklet doesn't say bring the broken part to a dealer within X amount of time, it says bring the failed equipment to dealer within x amount of time. That is unfortunately how warranty works, and it reads that way in the warranty policy handbook. You also have a certain period of time, so if your pin broke off in July and you're just now getting around to repairing it, either (1) don't tell them that it's been broken since July or (2) fix it yourself. It wasn't a huge deal but it always amazed me that someone would bring me pieces of a failed ball bearing and say I need new deck bearings under warranty. Nope. How did I know that bearing came off of the mower you just purchased? How does Kubota know? Why did it fail? What was the root cause? Was the housing damaged in any way? Go get your failed equipment or go buy yourself some new bearings. Talk about people being mad, but there was no choice in the matter. Warranty statement spells it out in plain language. In short, take the entire tractor with the loader, drop it off and wait for them to call you when it's done. If warranty, they'll probably replace the loader main frame assembly and decals, IF there's one available in the warehouses. Another sore subject but it's already getting to be a long post so I'll leave it alone....
unless the processes have changed, it's gonna be some time to get it all done, and some of that is dependent on the dealer. Anyway, the process goes like this. You drop it off. They take pics. They sent pics to kubota along with writing up a claim. The claim now sits at kubota for x number of hours/days/weeks/months and they decide, and send the claim back to dealer with either a paid amount or a denial or sometimes with questions, why this or where's that. It's an involved process sometimes.
if you have a welder, and something to get the paint ground or scraped away so you get to bare metal, fix it yourself and save yourself a ton of time/money/aggravation. I have the stuff at the house and if it were my tractor, I wouldn't have even posted...I'd just fix it and go on with life.