Loader boom cylinders uneven

   / Loader boom cylinders uneven
  • Thread Starter
#11  
I assumed he was talking about boom or loader arm cyclinders and not bucket cylinders or curl cylinders. sounds like the loader frame is twisted or like what was mentioned before somehow the mounting brackets are twisted or loose.
Yes, it is the part that the manual labels to as the boom cylinder, meaning the cylinders closes to the operator.
 
   / Loader boom cylinders uneven
  • Thread Starter
#12  
I appreciate all the replies. This is not a quick attach type of loader; I am not certain what "mounting plates" refers to (my tractor terminology knowledge is poor, my apologies). What drew my attention first is that the part called, in the manual, the "loader side frames" were not aligned. One is tilted corresponding to the cylinder that is extended vs the other. (If I understand the term correctly, loader side frame is the part of the loader sticking toward the operator that you maneuver into the frame of the tractor itself, hope I'm using the right term)

I don't appreciate any other twist or bend in the tubes holding the sides of the tractor together, but I'll get out there with a straightedge on Saturday.

If I can remove the snowblower (weather depending), I'll try to remount the loader and see if I can get more information, and maybe try the procedure from that video.

I'll post back when I learn more.

Ken in North Granby CT
 
   / Loader boom cylinders uneven #13  
The mount that the loader connect to the tractor (the part that stays on the tractor) what I was referring to.
Those mounts bolt to the frame of the tractor and have some adjustment to them, you are supposed to check the torque for the loader mounts (where it attaches to the tractor frame) periodically as they can loosen, I've had it happen and had to re-adjust the loader mounts to everything to align again.

Have you used the loader hard lately? Such as using one side of the bucket to try and pry or ram something? It takes a lot to tweak the loader arms or torque tube.

Some pictures of the loader and tractor side mounts might be helpful.

Sent from my SM-S921U using TractorByNet mobile app
 
   / Loader boom cylinders uneven #14  
My first engineering job out of university was in structures at JD Dubuque (yellow industrial stuff). One of my first assignments was to analyze the torque tube on a wheel loader (the boss made it sound like there was a problem... ha). So I wrote the work orders, had stress coat sprayed on the structure, ran the machine doing various load cycles (showed lots of stress (fractured stress coat) on the torque tube and welds), had strain gages laid in the hot areas, wired it for telemetry, and ran a full out stress test. The torque tube lit up like a Christmas tree!... very high stress. I was excited... "gonna solve this one!" Ha!

It was really just an exercise for me to learn the process of tractor design and testing structures. Boss zeroed in on the torque tube region because he knew it is one of the most active (high stress) parts of the structure. I'll never forget it either. The torque tube's only job is to maintain alignment between the loader booms. Any uneven loading on the bucket is carried by the torque tube. The boom cylinders are pressurized together in parallel.... only the loader structure keeps them lifting evenly. Hope this helps!
 
   / Loader boom cylinders uneven #15  
thats a good point, there is only one hose leaving the valve that acts in the lifting direction. it gets split into two so that both cylinders can help lift the load but it is the loader frame that ensures they lift together. If you cut the tube only the lighter side of the loader would lift and the other side would stay on the ground, assuming the bucket was off and the quick attach frames were not connected
 
   / Loader boom cylinders uneven #16  
Sounds to me like the gland nut threads are stripped, then the hyd. oil got out of balance in the cylinder.
100% wrong & useless information. Lift cylinders (and most curl cylinders) are teed together on the tops of the cylinders & the bottom, they self equalize every time they move. WTF does a gland nut have to do with anything? He never said the cylinders are leaking.

As others have noted, the loader or frame got tweaked at some point. Many or most buckets don't sit perfectly level after a while as things get tweaked over the years.
 
   / Loader boom cylinders uneven #17  
Sounds to me like the gland nut threads are stripped, then the hyd. oil got out of balance in the cylinder.

If the gland nut threads were stripped the glands would blow out of the end of the cylinder. The loader cylinders have no form of synchronization anyway. You should stick to giving advice on subjects that you have the slightest idea of what you’re talking about.
 

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