So as I referred to in a previous reply I was not there when the pump guy hooked this up and im getting the bolt information from the tractor owner. But I do know the distance from the tractor to the pump was approximately 20 feet. There was some sort of adapter shaft from the tractor to the long section of the shaft going to the pump. The adapter shaft was roughly 2ft long. The shaft came apart where the 2ft met the longer section. Thats all I know. The post is more about the cause of the fire versus the how exactly the shaft failed.
Burnt 2018 L4701
- Thread starter lottabusch
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North Idaho Wolfman
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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Swapping or using thee ECU in another tractor is a fool's errand.
Yes it could damage all sorts of devices and systems on the other tractor.
Fix all the wiring then if there is still an ECU issue then have the ECU tested.
Now as far as other damage, I would worry about the PTO drive and clutch, it had to take a huge hit.
Engine is easy to tell,
Did it boil coolant out of it?
Is there metal in the oil?
Does the engine turn manually?
Yes it could damage all sorts of devices and systems on the other tractor.
Fix all the wiring then if there is still an ECU issue then have the ECU tested.
Now as far as other damage, I would worry about the PTO drive and clutch, it had to take a huge hit.
Engine is easy to tell,
Did it boil coolant out of it?
Is there metal in the oil?
Does the engine turn manually?
All very good questions and I will know much more when I get my hands on it next week. I really appreciate the responses from the forum.
I'm with Hugo. The wiring part is easy. Cut and splice as needed. Please, ONE wire at a time! If you cut and splice ONE wire at a time you won't get anything crossed up. Connectors can be purchased as needed.
The alternator is easy enough to rebuild or replace.
That leaves three questions:
If you can get a good answer on the first two, you'll know which direction to go.
That third question, though... that's a tough one.
The alternator is easy enough to rebuild or replace.
That leaves three questions:
- Is the ECU toasted?
- Is the engine seized?
- Do dill pickles have any place in a civilized society?
If you can get a good answer on the first two, you'll know which direction to go.
That third question, though... that's a tough one.
curious, I looked up l4701HST( I assumed HST...) 2 wiring harnesses each about $2500. so $5k for both.
The problem with 'fixing' the existing cable is time and materials. You can easily spend a week(50-60) hours TRYING to repair the cables as EACH wire has to be 100% inspected from 'a' to 'b', one at time.Say there's 100 wires, 1/2 hr per inspection...that's 50 HOURS of your life,gone. At $100/hr shop time....gee that's $5,000 and NO guarantee you didn't miss one or two bad spots ! Can it be repaired, sure but honestly you're further ahead installing KNOWN, GOOD harnesses. This hasn't even addressed the fuse boxes, relays, connectors, etc. Each can take hours to properly assess and repair so please don't go into this thinking well there's 4-7 bad spots, should be OK. it's the one you didn't see that 'll back feed and destroy the new $$$$$$$$$ ECU and alternator !
The problem with 'fixing' the existing cable is time and materials. You can easily spend a week(50-60) hours TRYING to repair the cables as EACH wire has to be 100% inspected from 'a' to 'b', one at time.Say there's 100 wires, 1/2 hr per inspection...that's 50 HOURS of your life,gone. At $100/hr shop time....gee that's $5,000 and NO guarantee you didn't miss one or two bad spots ! Can it be repaired, sure but honestly you're further ahead installing KNOWN, GOOD harnesses. This hasn't even addressed the fuse boxes, relays, connectors, etc. Each can take hours to properly assess and repair so please don't go into this thinking well there's 4-7 bad spots, should be OK. it's the one you didn't see that 'll back feed and destroy the new $$$$$$$$$ ECU and alternator !
Thanks and I completely agree with you. We are just in the assessment phase right now so until we peel back the onion and take a bunch of pics we won't be doing anything. The dealer says without the damage it's worth $10k to $12k. They are quoting $12k min for repairs and that's with one harness.
I want to get a shop manual so I can get a better understanding of the system. Any suggestions on which manual is best?
you can try www.kubotabooks.com to see if WSM is there. Some dealers will copy for free onto your flashdrive. Hmm, only ONE harness ? That cuts cost down in 1/2 ( $2500 CDN) ! You can probably guesstimate another $1000 for alternator and other KNOWN melted/damaged parts ? Didn't lookup the ECU though !! This will be a very tough call, best get prices for the ECU and ALT + anything you can see in pictures that's 'suspect'.If you get to $5K, it'll be a really, really tough call. Make a list ON PAPER, parts and cost ! Too easy to forget something ( say the $****** fuse box ) !
NCL4701
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L4701, T2290, WC68, grapple, BB1572, Farmi W50R, Howes 500, 16kW IMD gen, WG24
How many hours did it have on it?
May seem irrelevant, but I’ve seen quite a few tractors on the NC coast that look like garage queens but they’ve been primarily used to run pumps for waterfowl impoundments / corn fields so they have many thousands of hours on them, nearly all running WOT. Obviously you have some more research to do when you get your hands on it, but I wouldn’t put anything close to the value of the tractor into repair on damage like this that could turn into a money pit. A 7500hr L4701 isn’t going to be worth near what a 750hr is, even if the high hour machine looks pristine. If it has been a portable impoundment pump engine, 1000hr/yr wouldn’t be unusual.
Edit: I’d also check with ag salvage places such as Worthington Ag, All State, Baker’s, etc. to see what kind of salvage bids you can get for it as is. If it’s been a pump motor, the parts that don’t get used much will often cause it to have good value for parts even with the high hours, so tell them what it was used for. They’ll want plenty of pics if you want bids.
Good chance if you add repair cost to salvage value it will exceed value of the tractor.
May seem irrelevant, but I’ve seen quite a few tractors on the NC coast that look like garage queens but they’ve been primarily used to run pumps for waterfowl impoundments / corn fields so they have many thousands of hours on them, nearly all running WOT. Obviously you have some more research to do when you get your hands on it, but I wouldn’t put anything close to the value of the tractor into repair on damage like this that could turn into a money pit. A 7500hr L4701 isn’t going to be worth near what a 750hr is, even if the high hour machine looks pristine. If it has been a portable impoundment pump engine, 1000hr/yr wouldn’t be unusual.
Edit: I’d also check with ag salvage places such as Worthington Ag, All State, Baker’s, etc. to see what kind of salvage bids you can get for it as is. If it’s been a pump motor, the parts that don’t get used much will often cause it to have good value for parts even with the high hours, so tell them what it was used for. They’ll want plenty of pics if you want bids.
Good chance if you add repair cost to salvage value it will exceed value of the tractor.
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NCL4701
Well-known member
Equipment
L4701, T2290, WC68, grapple, BB1572, Farmi W50R, Howes 500, 16kW IMD gen, WG24
There’s a WSM at the link in @GreensvilleJay’s post #28. If you have difficulty getting it, let me know and I’ll figure out a way to get you an electronic copy. It’s 21.9 MB and this site doesn’t seem to like stuff that big, even in a private message.
Edit: Apologies for all the posts and edits. Probably obvious but if owner has any insurance, homeowner, farm, business, etc. check with the agent on coverages. Just because you think it’s covered doesn’t mean it is, but just because you think it isn’t doesn’t mean it isn’t.
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