McCormick XTX 200 wont move forward

[FarmerGuy]

Hello, I've got a mccormick xtx 200 2004/5 model with 6.6k hours on it which won't move forward. When the lever is in any position it is going backwards only. It is spinning all 4 wheels, but I can hold 1 of the back wheels with my hand so the diff isn't locked. It also won't apply the clutch when I press it (the clutch sensor is fine). I had a mechanic which tested the mainfold for oil pressure and he said there is none. Also changed the forward solenoid on the mainfold, swapped with the reverse one aswell. To be honest I don't know what to do anymore, don't have any ideas so I'm writting here.

I had a sing before the whole break down as following- When I was attaching an implement the tractor moved differently, as in harder for it to move. I put the lever in neutral, released the clutch and it jumped and went backwards, pressed the clutch and it stopped. Didn't think anything of it as i thought its and electrical bug or something. Went on the field and started working, usually I go around 12 kmh no strain with that implement, but this time the tractor was barely going 10kmh with it. So I decided to go home, in 4.1 gear. While I got home (around 1-1.5km) I had smoke coming out from the back (my guess is that the oil temp got massive)

 

[FarmerGuy]

I forgot to mention that when I put the tractor in calibration mode, then it does stop going anywhere

 

[Pebd99]

Heard of the forward/reverse shaft breaking in half and so it would drive forward with just the front wheels and drive in reverse just the back wheels. That wouldn’t of happened and you’ve burnt the forward clutch pack out? Just a thought.

There’s a hatch on the side of the gearbox right hand side. Can’t remember if it’s where the linkages go through or just behind them and I’m sure you could see the shaft from it. The shaft is the very top shaft in the back end from memory. It won’t calibrate because it could be losing pressure in the clutch pack and throwing it out of the calibration procedure. This is speaking about a ttx 230 but it’s the same layout with smaller shafts on the xtx. Hope that helps in some way.

 

[FarmerGuy]

Heard of the forward/reverse shaft breaking in half and so it would drive forward with just the front wheels and drive in reverse just the back wheels. That wouldn’t of happened and you’ve burnt the forward clutch pack out? Just a thought.

There’s a hatch on the side of the gearbox right hand side. Can’t remember if it’s where the linkages go through or just behind them and I’m sure you could see the shaft from it. The shaft is the very top shaft in the back end from memory. It won’t calibrate because it could be losing pressure in the clutch pack and throwing it out of the calibration procedure. This is speaking about a ttx 230 but it’s the same layout with smaller shafts on the xtx. Hope that helps in some way.

I turned on the tractor today to test where the wheels go, all 4 are going backwards. Even if the forward clutch pack would have been burnt, wouldn't the tractor stop if I press the clutch, no?
About that hatch is it the one where the sensors and solenoids are where the tractor changes gears? Something like this https://prnt.sc/qadk0q


Also this is the manifold http://prntscr.com/qadsg9 I had a mechanic come to check for oil pressure on it and it wasn't getting any. So my guess that there is a blockage somewhere else

 

[Pebd99]

The clutch pack could of burnt up and welded the discs together. So the tractor is going in reverse when engaged in reverse and forward? Can’t think of there being a blockage really unless the forward solenoid valve has gotten something in it or stuck to lose pressure. I’m just guessing now.

 

[agrimax]

@McCman .......any answers?

 

[McCman]

If you have had smoke coming out of the transmission breather something inside is cooked, i would guess at the forward / reverse pack. Has it got any error codes coming up ?

 

[FarmerGuy]

No error codes apart from when the calibration fails (forgot which one it is, but it had to do with the oil pressure to the manifold irc)

 

[FarmerGuy]

We disassembled it in half and its the discs, they got welded together. Gotta change them and the shaft aswell as it got some beating to it

 

[Xtx 200]

How much did that end up costing. I have the same problem with mine