L4850DT Operation questions...

[Ironbrew]

I have a sneaking suspicion I'm having some error codes on my old machine. Specifically error code one D ten T (1D10T).

I've recently picked up this machine. Shuttle shift works perfectly. The clutch, however, doesn't appear to be working. When I push it in, I'm getting resistance, but I'm not disengaging the transmission. IE - shuttle in forward, tractor in one, clutch in and it still moves. Move the shuttle to neutral and it stops. Reverse... works. I suspect I need a description of the various ways the clutch operates for PTO etc. so I at least have a starting clue before I start looking at mechanical issues.

As I said, at this point I'd like to eliminate operator error before I go looking for problems that (potentially) don't exist.

Thanks

 

[Ironbrew]

OK. Additional information. Still learning. I have the hydraulic shuttle, but I'm not sure if I have the everclutch or the "normal" clutch. And what that means.

 

[North Idaho Wolfman]

The L4850 never had a EC (ever clutch), the EC was a Hydraulic main clutch.
Being that it's a hydraulic shuttle it can have one of 2 clutch arrangements, it can have either a dual cultch or a single clutch.
I would have to see the clutch pedal and clutch housing linkages to know which one it is.

 

[Ironbrew]

Hopefully this tells you what you need to know?

And thank you for the assistance. The joys of older equipment...

 

[Ironbrew]

Looking at the pictures you posted, HDT-W seems to be the appropriate unit?

 

[North Idaho Wolfman]

Your clutch linkage goes into the top of the clutch housing and not the bottom.
So you have an HDT, with a single stage clutch.
HDT-W the linkage is on the bottom.
Also the HDT has a tab on the clutch pedal linkage for a safety switch where the HDT-W does not.
If the clutch will not disengage it's probably rusted to the flywheel (very common on old Kubota's).
You can try working it hard (with a PTO driven implement even better) and while working it keep trying to disengage the clutch, it's a long shot especially if it's been like that for a time.

 

[Ironbrew]

How does that clutching work for the PTO?

I've noticed the pto spins even in neutral (haven't hooked up an implement to see just how much yet).

 

[Ironbrew]

How does that clutching work for the PTO?

I've noticed the pto spins even in neutral (haven't hooked up an implement to see just how much yet).

More digging. PTO spinning is just some sort of residual. Assuming from oil flow or something.

Thanks for the information. It's been helping me out huge. Once my wheelspacers are in, the tractor will be working hard with a chipper. My plan is to strap the clutch pedal down and run the chipper at high speed rather than the usual (relative) sedate speed. I'll probably leave the chipper just barely off the ground to encourage vibration...

 

[Ironbrew]

More digging. PTO spinning is just some sort of residual. Assuming from oil flow or something.

Thanks for the information. It's been helping me out huge. Once my wheelspacers are in, the tractor will be working hard with a chipper. My plan is to strap the clutch pedal down and run the chipper at high speed rather than the usual (relative) sedate speed. I'll probably leave the chipper just barely off the ground to encourage vibration...

An update for any that may be interested...

In order to access the inspection plate I had to remove the loader mount. That was entertaining enough... That's a heavy piece of steel, and the bolts had never been off and one had to be cut. Once accessible, clutch was seen to be seized and was freed carefully. I now have a working clutch. I expect this may have reduced the life of the clutch but hopefully not something I will need to bother with any time soon. I chose to remove the left hand mount so I didn't have to mess with the hydraulic lines.

 

[fc1]

Good work!