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5010 charging

P

plowhand

Member
Looking into buying a 5010 hasn't ran in 10 years stored inside said it would drain the batteries while running.
 
I bet it has the original 24 system on it. You need everything to be working correct for them to work right. Bad grounds and other wring issues are more troublesome on these systems. The trouble is the entire wiring harness and system is close to sixty years old. Lots of stuff that can be bad just due to age.

So you have options:

1) Fix the current system. That will take some knowledge/skill to do. More than likely the alternator is shot as the voltage regulator often gets messed up if there is a wiring issue. Also guys in properly jump starting them with ruin the alternator too. so this might be the cheapest repair but can still cost some bucks. Depending on how bad the alternator is smoked it could be $200 plus for just that alone.

2) Switch it over to 12 volt using the current harness. The Kits start at around $450 and go up depending on the quality of the starter/alternator in the kit.

3) Replace the wiring harness with a 12 volt one. Then use a 12 volt starter and alternator. This is the best way IF you can afford it and plan on keeping the tractor. Could easily cost $1,000 plus.
 
Maybe the real late JD 5020s would have been factory 12 volt. All the 24 volt systems where about the same.

I have two JD 4020s that still have the 24 volt system. They still are working fine. You do not have to convert them to 12 volt to have a good working system. There are just fewer things to go wrong on the 12 volt system.
 
After sitting 10 years what are
the chances the fuel system is
ok..injection pump and
injectors..what pump does it
have?..
 
If it is a JD 5010 it has the Roosa Master injection pump. It should be OK. the metering valve can be stuck but you can get to it easy. If your trying to start it make sure and put it in 8th gear and just hold the clutch down while you start it. If it runs off you can kill it by just letting out the clutch.
 
(quoted from post at 19:29:59 08/13/19) Looking into buying a 5010 hasn't ran in 10 years stored inside said it would drain the batteries while running.
Click to expand...

At this point, with a tractor that has sat so long don't even worry about the charging system at this point.

If the starter is OK and it starts and runs without any other issues getting the generator to work is a MINOR detail. Gonna have to buy a couple of hundred $$$$ worth of batteries, for sure, though.

If you get it, post back for help with "walking you through" evaluating and repairing the charging system.

If it's otherwise in good condition, GO FOR IT, they are a HEAVY but gentle beast!
 
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