Hydraulic Problem After Hoses Replaced

[Kaizer Peas]

I have a 2007 Branson 3510i tractor with front and rear remotes on a BL10S loader. Had it for 14 years with no loader problems, recently found a hose with a leak and since I'm not near any place for service I decided to go ahead and replace 5 hoses that showed wear and potential for problems.

Got replacements made, brought them home and installed them exactly as others came out. Now, attempting to raise the boom, one of the output hoses from the remote spews out hydraulic fluid below the coupling and the rockshaft won't raise.

Nothing works, what to do?
A few photos might help.

 

[oldnslo]

My first thought is that you somehow got a couple of hoses connected wrong. Do you have the ability to label which hoses you replaced on those pictures and then say what they connect to. Maybe from that we can assist you on figuring this problem out.

 

[MRTOES]

On rare occasions when a fitting is pushed into a hose it can "scoop up" part of the inner lining and in doing so could create a "flap" that blocks off fluid flow.

 

[old and tired]

You will have to trace those hoses, write then down as to what is going where. The joy stick valve should have some markings for each port. "T" = Tank "IN"= high pressure in)

Photos are nice but there is no way to know which hose goes to where.

If tracing the hoses yourself is too much, you might try colored zip ties (same color on both ends) If you run out of colors just double up on colors (green and yellow on both ends)

 

[Harry in Ky]

I tend to agree it could be a classic case of misrouted hoses, but as we all know things aren't always what they seem. It might also help it you identified which port/hose/joint is "spewing out" the oil. I didn't see anything noticeable in the photos. Maybe someone else did.

 

[Kaizer Peas]

As to the hoses being possibly connected wrong, no two hoses are the same length and I had
two on the remote and two on the spools, and it's impossible to swap them. I've replaced other hose on the loader before with no problems. This time it's making me nuts.

 

[Kaizer Peas]

I tend to agree it could be a classic case of misrouted hoses, but as we all know things aren't always what they seem. It might also help it you identified which port/hose/joint is "spewing out" the oil. I didn't see anything noticeable in the photos. Maybe someone else did.

On the top photo the hose on the right on the remote is the one spewing.

 

[oldnslo]

If you are certain lines are connected properly I would then start disconnecting each hose end to confirm the hose ends are drilled completely thru and not blocking the flow. On leaking hose is it leaking around the crimp? If yes then not crimped properly or bad section of hose or hose end.

Since nothing works down stream would start with power beyond hose if that one of the hoses replaced.

Since that picture appears to be 3rd function valve if it is shifted it would also block flow allowing nothing down stream to operate.

 

[Kaizer Peas]

There are a few more details I need to mention. That remote has two lines in and the lines out.
Of the two out one one seems to be getting all the pressure and is spewing.The one on the right.
Also the dealer I work with mentioned that I should check the push connectors on the joy stick for problems. When took the hoses off I unscrewed them and left the plug in but to double check
after putting hoses on {which are color coded} I unplugged them and put them back in and they were tight just like every time I did before when removing the loader.

 

[Kaizer Peas]

The hoses were made by NAPA and I inspected them I got them and all good. The hoses that leaked I changed out with the original one and it leaked just like the new one. I don't think was the crimp.

 

[Harry in Ky]

Assuming again here, your problem valve is the joystick valve you're calling a remote valve? The hose leak is the hose with only straight fittings, no 90 degree elbows? If so, that looks like it should be the sump return line. There should be near zero pressure in that line. Where does that hose go?

 

[ruffdog]

Assuming again here, your problem valve is the joystick valve you're calling a remote valve? The hose leak is the hose with only straight fittings, no 90 degree elbows? If so, that looks like it should be the sump return line. There should be near zero pressure in that line. Where does that hose go?

It looks like he has 2 valves. The remote valve is mounted on the loader arm near the grill of the tractor while the joystick valve is more back by the dash.

 

[Harry in Ky]

Again with the terminology. I see two valves. I'd call one a joystick valve and the other a solenoid valve. I guess either one (or both) could be considered a remote valve.

 

[Kaizer Peas]

Ruff dog you got it right,

 

[Kaizer Peas]

Ruff dog you got it right and you too Harry.

 

[oldnslo]

The valve with solenoid and blue name plate is a diverter valve. The unknown is how this is plumbed but suspect connected to the curl dump on main joystick loader valve. De-energized the loader curls and dumps, energized the 3 rd function operates via joy stick curl dump movement.

If one of these lines is what is leaking then again would look at how it is plumbed and does it do the same with valve energized.


I cannot read the port labels but an example of the diverter works is:

P1 to C1 & P2 to C2 de-energized
P1 to C3 & P2 to C4 energized

Typical installation: is curl and dump ports on loader valve connect to P1 & P2 on diverter.

Then C1& C2 connect to curl dump cylinders

C3 & C4 are for 3rd function

 

[Harry in Ky]

I guess I'm just ignorant, but I don't see a "top photo" anywhere. I see three photos, all side by side. The first two are of a solenoid valve. I'm going out on a limb here and calling it a standard diverter valve. If that's the case, is it tied into the loader lift cylinder circuit? If yes, then it has no bearing on the three point. It's only involved with oil flow through the joystick valve work ports. The three point works with fluid from the power beyond port on the loader valve. You have an issue there somewhere. The leaky hose/fitting and loader "no lift" is a different issue.

 

[Kaizer Peas]

I have a question about the rear rock shaft. It worked perfectly till I changed the hose. There is fluid with no pressure in the line but what looks like a valve that feeds the rock shaft through a metal line and tied to the hose to the joy stick. It won't lift the arm. I once read on a forum that advised if you can raise the 3 point hitch it may solve the loader problem he had.

 

[Harry in Ky]

That depends on the problem. The rockshaft is supplied with fluid from the power beyond port of the loader valve. At least that's the standard way of doing it. We can't see from out here just how yours is set up. If your three point won't raise there's a good chance it's not getting any fluid. How you managed that (if all your hoses are installed correctly) is still in question.

 

[oldnslo]

I have a question about the rear rock shaft. It worked perfectly till I changed the hose. There is fluid with no pressure in the line but what looks like a valve that feeds the rock shaft through a metal line and tied to the hose to the joy stick. It won't lift the arm. I once read on a forum that advised if you can raise the 3 point hitch it may solve the loader problem he had.

On some tractors if the three point control is slightly out of adjustment lowering the 3 point will allow the loader to work. Like both Harry and I have stated you do not appear to be getting flow from power beyond to the 3 point. The unknown is what changed to create this problem?