I don’t know if anyone has any in stock right now. I ordered my first one from Charles Quick a few weeks back and it arrived in the US in less than a week. I wanted to order another one but looks like he is out.
Naviskelp in Poland is selling the baraki valve which has been the standby choice for quite a while but it looks like he is out as well.
There was a guy on here a week or so ago in the US who is getting some made but sounds like they are not ready yet.
Those are the options I am aware of. You need to find out what kind of steering your tractor has so you make sure to get the correct valve
Hello, I have a 60L Baraki valve installed on a New Holland 7.290 and a 30L Baraki valve on a T7030. Now I’m having the same problem with both tractors: when the 3/2-way valves are de-energized or in road mode, there isn’t enough flow. If I turn the steering wheel quickly, it sometimes locks up completely until I release it. If I turn it slowly, it works fine. Are there any solutions for this?
Did you check for any adjusting flow screws on the side of the block?
Not familiar with these blocks but there are lots out there so you should get a solution
Maybe @Krisu can advise
Seems strange its happening on both installs.
Do yoy have the return going into a free flow return, possibly some back pressure not letting oil flow back quick enough
Does it behave properly when you use autosteer?
When I use automatic steering, everything works perfectly.
When I intervene, it also deactivates. As long as I turn the steering wheel slowly, everything works fine.
However, if I turn the steering wheel quickly, it becomes difficult to turn, or even locks up.
I’ve now tried two 2/2 NO-directional control valves for testing, connecting them in parallel to the O/S valve for the steering. These, along with the 3/2-way valves, switch over so that not all the oil has to pass through the valve block when using manual steering.
Then it works as it should. However, I’m a bit uneasy driving with so many valves.
In my opinion, the 3/2-way valves in the block don’t have a sufficient flow rate.
Baraki OC block installed on a Valmet 465 (open center) with AIO 4.5 PCB and Cytron MD13S.
When autosteer is activated, the front wheels only move a few centimeters and then stop completely. This happens identically in both directions. The initial movement can be a sharp “kick” or a slightly smoother motion, but it always stops almost immediately. Increasing PWM up to maximum does not change the behavior. Cytron LEDs respond correctly in both directions, and using the manual buttons on the Cytron produces the same result.
Voltages have been measured at the proportional valve coil and cut-off solenoids, and all are receiving normal voltage. The coils also warm up as expected. Manual steering works completely normally at all times with no abnormal resistance or delay.
The cut-off solenoids appear to function correctly in that manual steering becomes hydraulically locked when autosteer is active. However, before the pressure sensor override releases, it is still possible to turn the steering wheel slightly (a couple of centimeters), and the wheels move slightly during this. The movement is in the opposite direction to the steering wheel input, even though the system should be locked.
It seems that some flow reaches the steering cylinder momentarily when autosteer is engaged, but it does not continue. Also, there appears to be a brief unintended flow path from the orbitrol to the cylinder even when the cut-off solenoids are active.
The pressure relief valve has been adjusted across its range, but this has no clear effect on the issue, and does not increase the steering movement beyond the initial small kick.
Looking for insight on what could cause this kind of behavior, especially limited initial movement, no sustained flow, and slight cross-port movement even with the system locked.
you might also make sure that you have your P and T lines correct and not reversed. I did mine backwards at first and I think it did something similar. I am guessing yours are backwards.
I wish I knew what fixed ours, but we really don’t know. I found a slightly damaged o-ring on one of the shuttle valves, but I had changed that and couldn’t tell that it made any difference. So we completely disassembled the entire valve and couldn’t find anything else wrong. We just cleaned everything and reassembled it and it worked. I assumed we must have gotten some debris in it that was keeping one of the solenoids from completely blocking oil flow or something. But that’s really odd that you’re does the same. Does it also twitch while it’s parked like ours did in that video?
I have checked the hose configuration and it is correct. i also took some of it apart but didn’t see anything obviously wrong. I was out of town all weekend and it has been raining for a couple days so i will have to wait a few days to test it.
Overall the steering works pretty well it just has a hard time keeping the line. Maybe I’m just not getting the settings correct.
I’m having the same issue with a 4960. Plumbed in between the steering wheel and the steering valve above the engine. I will change it and going to place it between the steering valve and the steering cylinder/rack&pinion to see if that makes a difference. I was only able to have the gain on 2, otherwise it would oscillate
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