Not stuck 165D hydraulic issues

   / Not stuck 165D hydraulic issues #1  

millard762

Silver Member
Joined
Jun 17, 2024
Messages
138
Tractor
yanmar 165D
Ok, as said in a previous thread, what can I do about the hydraulic issues? The issues is ONLY with lowering the bucket. Raising the bucket and tilting bucket is no factor. Can I remove the bolt that is on the boom side valve and peer in or is it under pressure?
 
   / Not stuck 165D hydraulic issues #2  
The issues is ONLY with lowering the bucket. Raising the bucket and tilting bucket is no factor.
I encounter exactly that if the 3-point is under pressure - holding a heavy implement up, or I'm pulling the lever after the 3-point is raised as far as it can go.

Investigate what's going on back there.
 
   / Not stuck 165D hydraulic issues
  • Thread Starter
#3  
There is no load on the 3 point.
 
   / Not stuck 165D hydraulic issues #4  
If all load is off the lift and tilt , tractor off, then there will be no pressure.
 
   / Not stuck 165D hydraulic issues
  • Thread Starter
#5  
Ok, thanks! So, that bolt that is between A1 and B1 on the boom lever, what will that do if I take it out? Will that access anything that could be sticking?
 
   / Not stuck 165D hydraulic issues #6  
Ok, thanks! So, that bolt that is between A1 and B1 on the boom lever, what will that do if I take it out? Will that access anything that could be sticking?
No idea, as I don't know anything about your valve. Picture, name, model??
 
   / Not stuck 165D hydraulic issues #7  
Ok, as said in a previous thread, what can I do about the hydraulic issues? The issues is ONLY with lowering the bucket. Raising the bucket and tilting bucket is no factor. Can I remove the bolt that is on the boom side valve and peer in or is it under pressure?
A few photos of your valve will help folks who know give you better advice. The old "a picture is worth a thousand words"... If you can find numbers, that is a help, as well, but start with some good photos please.

All the best,

Peter
 
   / Not stuck 165D hydraulic issues
  • Thread Starter
#8  
I had posted the pics in the other thread of mine. I delete pics from my phone. I will see if I can get them on this thread
 
   / Not stuck 165D hydraulic issues
  • Thread Starter
#9  
Retrieved from trash
20240829_190352.jpg
20240829_190350.jpg
20240829_190359.jpg
20240829_190347.jpg
20240829_190344.jpg
 
   / Not stuck 165D hydraulic issues #10  
Hard for me to recall but isn't your Hyd. pump is on the crank Shaft? If it's lifting then you have pressure. I have the same Control Valve. Pretty simple!. watch and make sure you see Hyd. Valves actually moving with the Handle. In and out with the handle movement. You can see the return lines back to the tank. I would be looking hard at those lines being plugged. Fwiw my Valve is made by Wagner. And look how big my return line is to the Réservoir. Dirty screen or clogged line. I had a pinched line inside the Hyd. hose. Swelled at a bend and pretty much had pinched close. Lucky and If I didn't look inside the line I never would have known or seen it.

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   / Not stuck 165D hydraulic issues
  • Thread Starter
#11  
Can't open attachment. So, I have had the lever stick and then the bucket will lower normally, but will keep going downward until the front end lifts up. So I have to shut tractor down to get it unstuck. When I get it unstuck, it goes back to moving slowly downward
 
   / Not stuck 165D hydraulic issues #12  
   / Not stuck 165D hydraulic issues
  • Thread Starter
#13  
Ok, thanks! If I have time before work tomorrow, I will give it a try
 
   / Not stuck 165D hydraulic issues #14  
Looking at your pictograph it looks like as you push your boom lever ahead you should get into a power lower which would lift the tires as it powers the boom down,
if you push it further ahead you should go into a "detented" float position which would allow gravity and ground to float your boom up or down with no hydraulic force.
The detent control is usually located in a cylinder style enclosure on the far end of the valve spool. Those can be removed and cleaned, as they can accumulate dirt and rust and other garbage.
Just be aware that most of them contain springs ( for self centering) and balls to snap into a groove with springs for the detents.
 
   / Not stuck 165D hydraulic issues
  • Thread Starter
#15  
So, would that be the long orange cylinder on the backside of the boom valve?
 
   / Not stuck 165D hydraulic issues #16  
I would expect so, that's were all the ones I've had to take apart were.
 
   / Not stuck 165D hydraulic issues
  • Thread Starter
#17  
Ok, wasn't able to get to it today. Hopefully tomorrow
 
   / Not stuck 165D hydraulic issues
  • Thread Starter
#18  
I got it figured out.
 
   / Not stuck 165D hydraulic issues #19  
Surely you are going to tell us what you figured out!
 
   / Not stuck 165D hydraulic issues
  • Thread Starter
#20  
It really isn't a fix, as there is still an issue. But, when I lower the bucket and it sticks and I let it go all the way down until it stops or lifts the front end, I have to tap on the lever with a hammer to get it unstuck. However, if I lower bucket and if I pull back on lever rapidly, it will not stick, but I can feel where it catches. If this all makes sense
 

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