loader issues

Crack

New member

Equipment
L4200DT GST
Sep 15, 2022
3
2
3
Wisconsin
Hello,
I am having issues with my loader. It has a hard time lifting the bucket even empty. The only way I can get it to lift or tilt is to increase my RPM way up, and even then it is slow. PTO operates just fine, as does the power steering.
Oil level is fine, changed oil filter, what should I be looking for next?
Please help.
Thanks
 

lugbolt

Well-known member

Equipment
ZG127S-54
Oct 15, 2015
5,203
1,888
113
Mid, South, USA
move the 3 point hitch lever downward a little. If the loader then works normal, you will need to adjust the feedback link.

if not, follow the hoses from the loader down to the tractor. On the early grand L's they had a valve in the middle of the block where the hoses go on the tractor that would sometimes get hung by sticks or whatever, and turns the valve half off-exhibits your symptoms. Takes a flat blade screwdriver. Just turn it back on.
 
  • Like
Reactions: 4 users

Crack

New member

Equipment
L4200DT GST
Sep 15, 2022
3
2
3
Wisconsin
Lugbolt…..You are a rockstar!!!
Thank You very much, it was the little valve down below on the side of the block.
Not sure how it got turned, but working like new again.
Thanks again, Craig.
 
  • Like
Reactions: 1 users

lugbolt

Well-known member

Equipment
ZG127S-54
Oct 15, 2015
5,203
1,888
113
Mid, South, USA
I won't forget that little screw valve.

In 2018 the little dealer I worked at for 26 1/2 years was bought out by a larger conglomerate of investors. They own several dealers in the area. Well one afternoon one of the other dealers' service trucks shows up with an L3600 identical to the one I used to own, which my brother now has. Great tractor. Anyway, it has an LA680 loader on it. Service manager comes out to my work bay and says hey we got a tractor out here that the other dealer cant' figure out. Says the loader only works when you advance the throttle, and even then it's slow and won't always work right. Ok, drop it off and I'll get to it tomorrow or the next day. 4 days later (we were busy at the time) I go out there and look at the little screw valve. Yep half off. Turned it on, works perfect. I didn't say a word to the service manager, I just let it sit there until the service coordinator of the whole company showed up. So he asks me if I'd looked at it and of course I said yep there it is I see it and I'm looking at right now. He went on to say that the other 2 stores in the area have rebuilt the pump, replaced a couple of valves, a position control valve and a power steering valve, of course the filters and fluid, the one store deemed the GST valve to be bad so they replaced that, and guess what? Customer's tractor now has about $4700 worth of work done to it. They gave up and bought it to our shop and said fix it. I walk out there with a screwdriver and fixed it. Problem solved. Showed the service coordinator what I did and he turned around and walked off without saying a word. My thought there was that he was trying to conjure up a way to call the customer & explain to him what the problems were WITHOUT telling him about the little screw valve. And that....is one of many reasons, I left that dealer group. They weren't 100% truthful with me, nor the customer--and I don't and won't work like that.
 
  • Like
Reactions: 3 users

GeoHorn

Well-known member
Lifetime Member

Equipment
M4700DT, LA1002FEL, Ferguson5-8B Compactor-Roller, 10KDumpTrailer, RTV-X900
May 18, 2018
6,038
3,314
113
Texas
Reminds me of the time my buddy (a car dealer mechanic) bought a new pressure washer. He took it out of the box, assembled it, added oil to the crankcase and fuel to the gas tank and hooked up the water hose and turned the water valve ”On”… moved the fuel valve to “on” and the choke to “start”….and pulled the recoil cord …over and over and over and over…. Checked and double checked the choke, the fuel valve and then UN-choked it believing he’d flooded it. Pulled the recoil over and over and over…. pulled the spark plug boot and pulled the recoil and…. no spark.
He was ready to pack it all back in the box and take it back when I pulled up with a six-pack and asked him “what’s up?”
He…. Disgusted…. went inside the house and grabbed a couple frosted mugs and came back and told me he was fed up with the brand new power-washer…”You Just Can’t Buy Good Stuff Anymore!“, he said, ….”It’s all made in China out of compressed rice-hulls and it’s Junk!”

I looked it over and said, “Did you try turning this little red knob on the side of the engine from “off” to ”Run”…..?

:poop:
 
  • Like
  • Haha
Reactions: 2 users

Nicksacco

Well-known member

Equipment
Kubota L35 TLB, 2014 RTV-1140CPX
Sep 15, 2021
678
382
63
Bahama, NC
And here it is on the L35! (Part 200).
The loader valve hose goes into part 180.
It took me some reading when I was taking things apart to "get" this.
Thanks Lug - I think you've seen it all eh?

1663407947942.png
 

Crack

New member

Equipment
L4200DT GST
Sep 15, 2022
3
2
3
Wisconsin
Lugbolt
That’s exactly why this country needs more people like YOU!!
There is no doubt it would have cost me a couple of grand to have it fixed after they replaced a bunch of items that didn’t have to be replaced!
Thanks again.
Craig
 

Nicksacco

Well-known member

Equipment
Kubota L35 TLB, 2014 RTV-1140CPX
Sep 15, 2021
678
382
63
Bahama, NC
curious, have to ask what does #200 do ??
Here are notes from the WSM. The 200 part is the "Directional Valve 1".
Note the subtle difference in the horizontal marking on top of that spool.

Valve 2 is operated as a lever on the right side of the operator opposite the manual throttle.

I hope that helps.


1663415860387.png
 

PoTreeBoy

Well-known member
Lifetime Member

Equipment
L35 Ford 3930
Mar 24, 2020
2,796
1,517
113
WestTn/NoMs
Here are notes from the WSM. The 200 part is the "Directional Valve 1".
Note the subtle difference in the horizontal marking on top of that spool.

Valve 2 is operated as a lever on the right side of the operator opposite the manual throttle.

I hope that helps.


View attachment 87260
I saw that on the flow diagram and couldn't find any mention of it in the Op Manual. On the L35 it doesn't serve any purpose since directional valve 1, which is explained in the Op Manual, is available to bypass the 3PH when the backhoe is installed.
 

Nicksacco

Well-known member

Equipment
Kubota L35 TLB, 2014 RTV-1140CPX
Sep 15, 2021
678
382
63
Bahama, NC
I saw that on the flow diagram and couldn't find any mention of it in the Op Manual. On the L35 it doesn't serve any purpose since directional valve 1, which is explained in the Op Manual, is available to bypass the 3PH when the backhoe is installed.

Yea, I know.
Only thing I can figure is perhaps operating flexibility with the tractor with or without loader and/'or backhoe.