Lift arms on 2350DT stuttering with auger attachment

[Stuart_T]

I picked up a used 2350DT last fall and it's worked well with my snow blade and brush cutter. But I hooked up my Speeco 12" auger (PHD) for the first time yesterday (with this machine) and when I lift the auger the lift arms stutter/jerk rather than lifting smoothly. Drop is OK. I haven't used the PHD for a couple of years at least; I think the last time it was used by my neighbour with her small JD tractor. I previously had a grey-market Yanmar 1702D and I don't recall this problem with it.. The lift is smooth with no load and with my Modern Mfg. 48" brush cutter.

I had made sure the PHD was lubricated and the telescoping drive shaft operating smoothly. I also tried without the drive shaft connected to the PTO but no difference. I am about to do a hydraulic fluid change (as no idea when it was last done) and clean the screen but as it operates OK otherwise I doubt this is a contributing factor (??)

Has anyone else run across a situation like this?

ps: No known other hydraulic issues. F-E Loader drop speed is rather quick if I'm not careful but I understand this is not adjustable. Power steering fine.

EDITED to clarify "PHD", not just the auger itself.

 

[Russell King]

What happens if you try to pick us any other implement of similar weight?

 

[Stuart_T]

What happens if you try to pick us any other implement of similar weight?

As noted above, no problem with the brushcutter (probably heavier) norr the snow blade. Pretty even.

 

[TheOldHokie]

As noted above, no problem with the brushcutter (probably heavier) norr the snow blade. Pretty even.

What sort of top link on the PHD? Does it stutter all the time or just when lifting from a hole?

Dan

 

[Flintknapper]

Might check the length of your top link and which hole on the bracket (tractor) you have it in. It might be creating an angle that is binding the unit.

I'm guessing here.

 

[North Idaho Wolfman]

PHD don't have a top link.

Adjust the drop speed knob.
If you still have issues you need to adjust the feedback linkage.

 

[Lencho]

Check the PTO shaft as well. It is really long and if the inner and outer shafts don’t slide easily it could cause the problem.

 

[TheOldHokie]

PHD don't have a top link.

DOH!

 

[Stuart_T]

PHD don't have a top link.

Adjust the drop speed knob.
If you still have issues you need to adjust the feedback linkage.

AFAIK the drop speed knob only affects the drop speed, not lift (?) I have to adjust it differently for the brush cutter as it is pretty heavy. I had it adjusted for a gentle drop with the PHD.

*** Now the feedback linkage is something I'm not familiar with. ???

I've checked for binding and can't see anything that might cause this. I thought perh. the long telescoping drive shaft of the PHD might be the cause, but it slides smoothly. In any case when I tested it today I did not connect the drive shaft to the PTO, so it was out of the equation.

I haven't experimented with using different holes on the tractor bracket. There are also three holes on the bracket on the PHD where the yoke arms attach that connect to the tractor lift arms. This would affect the vertical lift angle. In the pic below it's on the middle hole. Mine is on the uppermost one.

It stutters only when lifting, and not even from a hole.

 

[North Idaho Wolfman]

If the yoke is not straight up and down that can cause them to act erratically.

This is the feedback linkage check it for damage or sticking.

 

[Stuart_T]

Thanks for that. I will check that out (when the weather improves as we're in for a rainy spell).
I have a full parts manual as well.

 

[North Idaho Wolfman]

Thanks for that. I will check that out (when the weather improves as we're in for a rainy spell).
I have a full parts manual as well.

Well now you have the service manual too.

 

[Flintknapper]

PHD don't have a top link.

Adjust the drop speed knob.
If you still have issues you need to adjust the feedback linkage.

Hah....of course that is right.

 

[Stuart_T]

Had another go at this today, but still jerky when lifting. I checked the feedback rods; in both cases the nut at the rear end of the rod was frozen; I could turn neither it nor the turnbuckle. I've soaked both with Kroil but may have to remove them to work on them inside What would indicate that they might need adjustment?

I hooked up the PHD and observed the feedback rods and the small lever which attaches to the lift arms. Presumably there should be some movement/adjustment during lift? Neither moved.

 

[TheOldHokie]

Had another go at this today, but still jerky when lifting. I checked the feedback rods; in both cases the nut at the rear end of the rod was frozen; I could turn neither it nor the turnbuckle. I've soaked both with Kroil but may have to remove them to work on them inside What would indicate that they might need adjustment?

I hooked up the PHD and observed the feedback rods and the small lever which attaches to the lift arms. Presumably there should be some movement/adjustment during lift? Neither moved.

???

Both had to move if attached to the arm

Dan

 

[Stuart_T]

???

Both had to move if attached to the arm

Dan

That's what I figured/was afraid of Clearly something's amiss somewhere as I saw no movement. We have a local Kubota dealer so I'll drop in and talk to the tech. (My previous tractor - a gray market Yanmar from the '80's - didn't have this feature so it's new to me.)

 

[North Idaho Wolfman]

Had another go at this today, but still jerky when lifting. I checked the feedback rods; in both cases the nut at the rear end of the rod was frozen; I could turn neither it nor the turnbuckle. I've soaked both with Kroil but may have to remove them to work on them inside What would indicate that they might need adjustment?

I hooked up the PHD and observed the feedback rods and the small lever which attaches to the lift arms. Presumably there should be some movement/adjustment during lift? Neither moved.

I think you're lost somewhere...
There is only one feed back rod, and there is no turnbuckle on it.

 

[North Idaho Wolfman]

This is the feedback linkage.

 

[TheOldHokie]

That's what I figured/was afraid of Clearly something's amiss somewhere as I saw no movement. We have a local Kubota dealer so I'll drop in and talk to the tech. (My previous tractor - a gray market Yanmar from the '80's - didn't have this feature so it's new to me.)

They are bolted on - how can they not move with the arm????

Besides - I dont think feedback is your problem.

Dan

 

[Stuart_T]

I think you're lost somewhere...
There is only one feed back rod, and there is no turnbuckle on it.

No doubt... I've obviously misidentified the part in your diagram! I'll check it again tomorrow after a more thorough look at the parts and service manuals.

Thanks for chiming in and setting me straight