Need a new or to rebuild the 4 way control valve for my front end loader
- Thread starter joe t
- Start date
SSdoxie
Elite Member
Is the vavle working OK other than leaking? Is so, just reseal in or have a hydraulic shop do it if your not comfortable trying to do it. If there are other porblems besides the leak it may need a different valve.
SSdoxie
Elite Member
Is the valve working OK other than leaking? Is so, just reseal in or have a hydraulic shop do it if your not comfortable trying to do it. If there are other porblems besides the leak it may need a different valve.
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One problem, sometimes rarely I'll push forward to go down and it jumps up for a second.
Also, can't push it all the way forward, have to work it a little to get "full power" to like pick up the front end of the tractor. Probably isn't even full power considering I can't push it much forward. If I push it all the way forward it will just loose pressure. Could be a seal problem?
I want to fix it cheap and have it work ok. I'm going to use this tractor a couple more times and sell it, don't want to spend a lot and don't want the future buyer having an immediate problem though.
Also, can't push it all the way forward, have to work it a little to get "full power" to like pick up the front end of the tractor. Probably isn't even full power considering I can't push it much forward. If I push it all the way forward it will just loose pressure. Could be a seal problem?
I want to fix it cheap and have it work ok. I'm going to use this tractor a couple more times and sell it, don't want to spend a lot and don't want the future buyer having an immediate problem though.
JD 4520
Platinum Member
Other than the leaking, it sounds like you need a hydraulic fluid, filter change and clean the screens. It sounds like you are losing pressure do to this. A small leak isn't generally enough to cause the problem you described.
No not a small leak, it is pouring out, like it use to drip and as it has got worse so has the leak to the point of a stream of fluid coming out now. Which I guess whatever was dripping gave away and it started pouring out when I used it last.
Might be due for a fluid change and screen cleaning though, couldn't hurt. I think it has around 30 hours on the last change.
Might be due for a fluid change and screen cleaning though, couldn't hurt. I think it has around 30 hours on the last change.
J_J
Super Star Member
- Joined
- Sep 6, 2003
- Messages
- 18,928
- Location
- JACKSONVILLE, FL
- Tractor
- Power-Trac 1445, KUBOTA B-9200HST
If your valve leaks fluid, it could be a number of things.
The spool could just be worn out, and most spools can not be replaced.
If the spool has o-rings, they can be replaced. However, they only seal the bypass fluid from the spools.
The spool that looses pressure when pushed fwd, is probably a float spool and is supposed float the bucket.
Where is fluid pouring out, a fitting, a hose, a crack in the valve block, a check valve, a relief valve.
Your spool spring centering assembly might need some work.
The spool could just be worn out, and most spools can not be replaced.
If the spool has o-rings, they can be replaced. However, they only seal the bypass fluid from the spools.
The spool that looses pressure when pushed fwd, is probably a float spool and is supposed float the bucket.
Where is fluid pouring out, a fitting, a hose, a crack in the valve block, a check valve, a relief valve.
Your spool spring centering assembly might need some work.