Hello from a new Branson 2400h owner.

[oldnslo]

I didn't get a chance to start the tractor last night as it was getting late.

I had found a manual for setting this valve but can't seem to find it again.

The two levers, positioning and feedback, both need to be connected for the spool to move. If only one is connected the internal arm just pivots.

Jeff,
per my post #18 check that banjo fitting to see if previous blocked it when he added that 45 degree fitting. If yes do not run the tractor until you get that replaced or you could and probably would be dead heading the pump over relief since that is supposed to the connection back to tank via 3 point valve for power beyond.

 

[JeffinNB]

Oldnslow,

It's my understanding the hydraulic hose (hardline on yours) is the supply line from the pump. Fluid enters the position control valve here and returns to "tank" in the rear differential. It doesn't appear the banjo bolt would be blocked.

I've got it all back together and it's working but not perfectly. I'll try adjust the linkages after supper. It raises and lowers but the positioning is off.

At what RPM does your 3PH start to move. Mine will not move at idle. I'm now thinking I didn't have to dismantle anything and just unbend the lever and idle up the engine.

My front end loader will move with the engine at idle.

Thanks for the help guys.

 

[oldnslo]

Jeff
Glad you have it functional. My 3 point works at idle.

That hard line on mine is power beyond from the loader valve to the 3 point. Yours might be different

 

[Torvy]

Our 1st home was previously altered by a guy we referred to as "Fix it Bob". A guy with the will, but not the skill.

I am famous at home for opting out of those things I don't do well. I'd rather pay a pro than jack up something.

Sorry. I hope you can get it back in good working order.

 

[JeffinNB]

I didnt mentioned that both brake return springs, and the neutral return spring were missing and he had bungee cords and other springs in their place.

I ordered those from the dealer and they are about a week out. In the meantime I made my own that are working well.

 

[JeffinNB]

Someone had mentioned this earlier but I'm just checking the lines now.

Looks like my C and T lines are reversed on my loader control valve according to the loader manual. My loader control valve has a port marked T and the T line is connected to this port cut the manual says the C line should go there. T usually references the return to tank port which is what the C line is.

I can't find the port diagram for this valve block.

 

[ptsg]

So much hackery going on in this tractor.

You may want to trace everything from the pump all the way to the rest of the system.

If those lines are indeed reversed, that means if you try to raise the 3 pt while lifting the loader, it should make the 3 pt go up. You do want to still fix those connections though.

 

[K5lwq]

C is power beyond and should go back to feed the 3pt. Likely that is your problem. But trace the lines as ptsg suggests.

 

[JeffinNB]

Well this is unexpected. The round block feeding my loader and 3PH is not ported as I expected. I thought it was supplying fluid to the 3ph as it originally would have without the loader. The only way for it to get fluid now is if it goes through the loader valve first. The C line is not connected to the 3ph positioning valve it's connected to the rear tank as a return to tank line.

Without the loader this block is passthrough from the pump to the 3PH as the parts diagram shows. It supplies the 3ph directly.

With the loader this is my routing.

oldnslow do you have 3 lines connected to your round block or 4?

 

[ptsg]

There is your issue with the 3 pt. Swap those lines and it should work again.

Basically the loader valve is dumping all the fluid to the tank with the joystick in the centered position.

 

[oldnslo]

I have four lines to that round block. One from the pump to side. Then out face to the loader valve, from “C” on loader back to other port on face of the block, out side of block feeds steel tube back to 3 point.

If needed I can take a picture but I don’t gave computer skills or knowledge on how to mark them up to ID the lines.

 

[Torvy]

You overlook the coast? Beautiful land!

 

[JeffinNB]

I believe this is the loader valve diagram. Flow from pump passes through to C port when the loader valve is in the neutral position or in float position. Flow to C is blocked in all other positions. T port is the return to tank port.

I cracked the hose fitting for port C and confirmed in neutral and float positions oil flows from port C. When operating the loader controls oil flows from port T. Working as it should.

Connected as it is now my loader functions at idle and my 3ph begins to move at around 1600RPM. At idle it does not move. If I reverse my C and T lines the 3ph only raises when I lower my loader arms which makes sense as the T port is the return to tank port but it does this at idle speeds. I think I have a flow problem through my loader valve through the C port circuit.

For some reason my manual says to connect the C-Line to tank drain and the T-Line to the 3PH position valve.

 

[oldnslo]

The manual is wrong.

C is power beyond or pressure carry over and should connect back to that round block. T must go directly back to tank or you risk damage to the loader valve since on most loader valves T port is only rated for low pressure like 400 PSI or less. C is good for full system pressure.

 

[JeffinNB]

I wonder if my loader valve has a faulty C circuit. The hydraulic pump has enough flow at idle to move the loader well. When I had the C and T lines reversed the flow coming from the loader cylinder when dropping was enough to raise the 3ph at idle.

 

[K5lwq]

I wonder if my loader valve has a faulty C circuit. The hydraulic pump has enough flow at idle to move the loader well. When I had the C and T lines reversed the flow coming from the loader cylinder when dropping was enough to raise the 3ph at idle.

I would pull the power beyond sleeve and look for the o-ring at the bottom of the sleeve. Wondering if it is damage or missing. Without that sleeve, the C port is just another tank port.
It will look something like this.

 

[ptsg]

I would pull the power beyond sleeve and look for the o-ring at the bottom of the sleeve. Wondering if it is damage or missing. Without that sleeve, the C port is just another tank port.
It will look something like this.

I second this. This would be my suggestion too. It's one of those simple things that can fail and cause all kinds of weird behavior.

 

[oldnslo]

Jeff
I admire your tenacity in trying to resolve this problem. Hopefully captain hack didn’t modify that power beyond sleeve.

 

[JeffinNB]

I changed out the oring on the sleeve. It didn’t look bad but I changed it anyway since I had it out. I still need to have the rpm up to about 1500 for the 3ph to move.

I decided to put everything back together and drive it around a bit to test out my neutral return spring and the HST drive. Tractor works great. Brakes are awesome and parking brake works.

The tractor puffs alot of white smoke when I start it and idles ruff for about 5 to 10 seconds like maybe one glow plug isn't working. I'm going to drain what's left in the fuel tank tomorrow and clean the fuel filter. It is showing empty on the fuel gauge. Maybe moisture in the fuel as well.

The smoke clears up and then it doesn't smoke when started warm.

Got it cleaned up a bit.

What do you guys paint your buckets with?

 

[K5lwq]

Looking good. I suspect damage has been done to your valve. The tank port can’t handle the system pressure when lifting something heavy with the 3pt. That is why the valve has a power beyond sleeve. It should feed any down stream valves.

I think the valve has cracked internally creating this odd behavior.