Lt220
Bronze Member
Does anyone know if the loader SCV on a john deere tractor can be rebuilt? The valve has an internal leak in the spool that controls the dump and roll of my bucket.
4320 SCV
- Thread starter Lt220
- Start date
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beenthere
Super Star Member
- Joined
- Aug 16, 2001
- Messages
- 18,522
- Location
- Southern Wisconsin, USA
- Tractor
- JD_4x2_Gator, JD_4300, JD_425, JD_455 AWS, added JD_455, JD_110, JD_X485(sold)
Check it out on the parts lists, and will need to know s/n and maybe other info to get to the right parts.
https://partscatalog.deere.com/jdrc...U9OLDU2MjU6I0NBVEFMT0csNjE3ODA6RVFVSVBNRU5UXQ
https://partscatalog.deere.com/jdrc...U9OLDU2MjU6I0NBVEFMT0csNjE3ODA6RVFVSVBNRU5UXQ
Tx Jim
New Member
Spool valves with internal leaks can't be repaired because spool & housing are a machined close tolerance fit IE complete valve assembly must be replaced. If leaking problem is caused by faulty check or relief valve then those can be replaced. Have you checked bucket cylinders to be sure their piston packings haven't failed?
OP
Lt220
Bronze Member
Yes I know it's not the cylinders leaking because I can unhook the quick connects and it stops leaking. It's leaking down so bad that the bucket will be almost full dump in about 2-3 minutes
Tx Jim
New Member
Does your tractors FEL have option of self leveling or regeneration valve on bucket circuit?
OP
Lt220
Bronze Member
Thanks for the comments. I did some more tests today. I found O ring and seal fragments stuck in the male coupler of one of the hose that controls the bucket curl. After finding the fragments Im pretty sure it's a cylinder issue and not the SCV. I ordered rebuild kits for the cylinders.
