Kubota M110 GXII does not go forward only reverse error code E-R44.Thanks in advance for the answers!

[Zahan95]

Hello everyone, we have a problem that a
Our Kubota M110 GXII tractor does not go forward, only reverse. It starts forward and displays the error code E-R44 and the tractor stops. It goes backwards perfectly.
Has anyone been there because the tractor would be very important to our family.
thank you very much for all the support and help.
Sincerely, K. Csaba Hungary!

 

[MapleLeafFarmer]

have you changed the trans fluid or filters lately?

that error code is often associated with the master hydro switch not working as its supposed to or the hydro pressure being too low. PLugged filters / low fluids would be my first check. gets more complicated after that

 

[Zahan95]

have you changed the trans fluid or filters lately?

that error code is often associated with the master hydro switch not working as its supposed to or the hydro pressure being too low. PLugged filters / low fluids would be my first check. gets more complicated after that

Thank you for your reply. We also checked the filter, there is no dirt in it, 6800 operating hours, but continuously serviced, single-owner machine. The oil is also clean in it. Yesterday it worked for 15-20 minutes, then it threw the error code again when starting and the machine stopped. What can this still be caused, or has anyone been there before?

 

[North Idaho Wolfman]

Most likely Switch or wiring issue:
If you don't have the WSM to help chase / check wiring and switch, just ask.

 

[Zahan95]

Valószínűleg kapcsoló vagy vezeték probléma:
Ha nem rendelkezik WSM-vel, amely segít a vezetékek és a kapcsolók üldözésében/ellenőrzésében, kérdezze meg.

View attachment 127758
[/IDÉZET]

Most likely Switch or wiring issue:
If you don't have the WSM to help chase / check wiring and switch, just ask.

View attachment 127758

Most likely Switch or wiring issue:
If you don't have the WSM to help chase / check wiring and switch, just ask.

View attachment 127758

Thank you for your answer! We started measuring the wires, but we haven't come up with anything yet, so far so good.
What or which color wire could be wrong?

 

[North Idaho Wolfman]

Thank you for your answer! We started measuring the wires, but we haven't come up with anything yet, so far so good.
What or which color wire could be wrong?

View attachment 127770

I have sent you the WSM it will have all the wiring colors on the Wiring diagram page.

Elküldtem neked a WSM-et, amelyen az összes bekötési szín megtalálható a Bekötési rajz oldalon

 

[DHCC]

Thank you for your answer! We started measuring the wires, but we haven't come up with anything yet, so far so good.
What or which color wire could be wrong?

View attachment 127770

Hey what did you figure out was wrong with your tractor? I got the same code this morning. Went through and checked the resistance on the solenoids at the ECU harness all (were good most at 28.1, Main Shift 2 and Shift 3 were at 32.8 though).

I swapped the pressure switch on the Master Clutch with Main Shift 4, and it's still giving me grief.

Suction filters and trans/hydraulic oil filter were changed in the fall, maybe have 200 hrs on them if that.

It was definitely giving me a little grief randomly when it got warm, under load or in deep snow it would randomly cut me out like I was riding the clutch when shuttling from Reverse to Forward, but it wasn't a often occurance. This morning though it won't roll 2 inches without throwing that code. So I managed to put some bales out in reverse oddly enough. Lol. Can't hook up to the vertical mixer though.

I see where I can screw in the guage to check the pressure (as per the WSM), but I definitely don't have an adapter that small enough to go from my guages and hose to that on the top of the transmission.

Curious what you figured out. My kubota mechanic said they'll likely have to split it (because the electrical on these tractors are solid LOL) as there is more than likely an O ring gone in the in the transmission which is causing no pressure to the master clutch switch. Just super weird it works beautifully in reverse in all ranges and gears.

Thanks

 

[eserv]

Hey what did you figure out was wrong with your tractor? I got the same code this morning. Went through and checked the resistance on the solenoids at the ECU harness all (were good most at 28.1, Main Shift 2 and Shift 3 were at 32.8 though).

I swapped the pressure switch on the Master Clutch with Main Shift 4, and it's still giving me grief.

Suction filters and trans/hydraulic oil filter were changed in the fall, maybe have 200 hrs on them if that.

It was definitely giving me a little grief randomly when it got warm, under load or in deep snow it would randomly cut me out like I was riding the clutch when shuttling from Reverse to Forward, but it wasn't a often occurance. This morning though it won't roll 2 inches without throwing that code. So I managed to put some bales out in reverse oddly enough. Lol. Can't hook up to the vertical mixer though.

I see where I can screw in the guage to check the pressure (as per the WSM), but I definitely don't have an adapter that small enough to go from my guages and hose to that on the top of the transmission.

Curious what you figured out. My kubota mechanic said they'll likely have to split it (because the electrical on these tractors are solid LOL) as there is more than likely an O ring gone in the in the transmission which is causing no pressure to the master clutch switch. Just super weird it works beautifully in reverse in all ranges and gears.

Thanks

Likely the forward clutch pack is worn out. when it gets worn out the piston travels to far and the seal leaks because it has came out of it's sealing area. Tractor will need to be split .

 

[Zahan95]

Hello everyone.
We got to the point where we measured everything from the ecu, power goes everywhere, there is no short circuit, we changed the forward and reverse gear and the same thing happens, it only shows when driving forward. We changed the magnet coils, it's still the same, we still have to look at the solenoid valve block because it could be the fault, but before that I'll measure the forward gear with pressure gauge.

 

[eserv]

Hello everyone.
We got to the point where we measured everything from the ecu, power goes everywhere, there is no short circuit, we changed the forward and reverse gear and the same thing happens, it only shows when driving forward. We changed the magnet coils, it's still the same, we still have to look at the solenoid valve block because it could be the fault, but before that I'll measure the forward gear with pressure gauge.

Also measure the time it takes to build pressure compared to reverse. As the clutch wears the clearance increases causing the piston to travel further thus longer time to build pressure. The ecu measures this time and will throw that code if it is too high.