Re: loader "multi-function" loader control problem

[TSO]

Re: loader "multi-function" loader control problem

Already mentioned this in the other loader problem thread, but I have found that the dual-function control on the loader is NOT up to par with other loaders.

Specifically, I can lift the boom AND curl up the bucket fine.... And I can lower the boom AND drop the bucket.

But, raising the boom and dropping the bucket, as well as dropping the boom and curling up the bucket, are extremely touchy and nearly impossible to perform with finesse and/or consistency.

I took a look at it today, and I think I figured out why... What I'd like to know is if there's a way we could improve on the design.

See the below vid for more:

https://www.youtube.com/watch?v=8Ra7aYYIoEI&feature=youtube_gdata_player

 

[Short Game]

Re: loader "multi-function" loader control problem

Private video again.

 

[TSO]

Private video again.

Stupid phone.... Should b viewable now

 

[Mike1369]

Nope still private... You sure it's the phone...lol

 

[TSO]

Haha

Try it now

 

[DT86]

Haha

Try it now

It worked for me.

 

[mangus580]

Re: loader "multi-function" loader control problem

Honestly I think the issue is more in the valve itself, and not in the control...

 

[beardley]

Re: loader "multi-function" loader control problem

I have a boomer 30 and I was fighting with this the other day. Pretty brutal when trying to dump a load. The control on my little yanmar was miles better. Unless your very slow and feel around with the joystick, you just can't get the boom to raise and the bucket to dump.

 

[tmeadows]

Re: loader "multi-function" loader control problem

Could the problem be a self leveling issue?

 

[TSO]

Could the problem be a self leveling issue?

Can you explain what you mean by that? I'm unfamiliar...

 

[J_J]

Re: loader "multi-function" loader control problem

I looked at the videos several times, and did not see a problem.

Are you saying that you can't push or pull the lever at say a 45, 135, 225, and 315 degree angle, and have both spools operate?

How much time would it take to pull the lever full back and pop the lever to the right for both spools to activate.

If you push the lever to 45 degrees, each spool will use about half of the pump volume.

With you looking closely at the spool shafts, if you put the lever at a 45 degree angle, are both spools moving at about the same distance. If so, then there should be equal action on the lift arms and the bucket.

 

[TSO]

Re: loader "multi-function" loader control problem

I looked at the videos several times, and did not see a problem.

Are you saying that you can't push or pull the lever at say a 45, 135, 225, and 315 degree angle, and have both spools operate?

How much time would it take to pull the lever full back and pop the lever to the right for both spools to activate.

If you push the lever to 45 degrees, each spool will use about half of the pump volume.

With you looking closely at the spool shafts, if you put the lever at a 45 degree angle, are both spools moving at about the same distance. If so, then there should be equal action on the lift arms and the bucket.

It's not that I CAN'T push the lever at those positions.... in face, there's NO problem at 45 deg and 225 deg (both positions coincidentally roll "horizontal" to the dual valve ball-joints). The problem is that when I move the lever at 135 deg AND 315 deg - those positions move "vertically" in tandem with both joints. It's difficult to find just the right spot, and that is NOT the case on other loaders I've used, both from Kioti and Kubota. Watch the video again and pay attention to how there is NOT a smooth distribution between each valve when at those positions. Sure, in a test environment I can very slowly and carefully find just the right spot... but when using in real world applications, it's not easy to feather it into place. I am postulating that a longer lever might help, as the short lever accentuates this problem... a longer lever may help to "feather" it at these spots, due to the increased leverage.

Are these size hoses & fittings easily found so I can adjust their length and locations? I may try to re-locate it and swap in a longer lever, especially since I'll want to add a 3rd function control (front grapple) anyhow in the future, and it looks like this particular lever head might not accommodate that as well as some other lever heads.

 

[J_J]

Re: loader "multi-function" loader control problem

I am puzzled by something.

You mentioned boom and bucket, is what you have on the rear of the tractor.

Also are the cyl SA cyl?

If those are DA cyl, and you are using the joystick to control them, I only see two hoses on the valve.

 

[mangus580]

Re: loader "multi-function" loader control problem

J_J, he is referring to the bucket loader - lift vs curl. The joystick runs 2 cables to under the floor board to run the actual valve. Therefore, you only see the cables.

 

[TSO]

Exactly, boom refers to the loader arms. I don't know what you mean by the acronyms, DA, etc...

 

[J_J]

Re: loader "multi-function" loader control problem

DA = Double acting cyl

SA = Single acting cyl

I see now that your valve is cable operated.