Very Jumpy Hydraulics

   / Very Jumpy Hydraulics #1  

yooperdave

Veteran Member
Joined
Nov 28, 2001
Messages
1,174
Location
Marinette, WI
Tractor
Tool Cat 5600, LS XJ2025H, Branson 4215HC
Tried out the new XJ2025H to clear snow for the first time.

Biggest item of note was the not so smooth operation of the loader.

I have never had such jumpy hydraulics - even on my older LG.

Is there something I can do to minimize the jumpy hydraulics?

TIA

Yooper Dave
 
   / Very Jumpy Hydraulics #3  
yooper,
By jumpy do you mean no speed control or the loader raises in jerk even with the lever pulled back fully?

If no speed control that is a function of the control valve used. Some meter very well allowing easy control of speed and others don't.

If jerky with lever pulled back fully I would also suspect air like radios1 said. Did you hear any growling noises from the pump? This would also indicate pump is drawing air.
 
   / Very Jumpy Hydraulics
  • Thread Starter
#4  
yooper,
By jumpy do you mean no speed control or the loader raises in jerk even with the lever pulled back fully?

If no speed control that is a function of the control valve used. Some meter very well allowing easy control of speed and others don't.

If jerky with lever pulled back fully I would also suspect air like radios1 said. Did you hear any growling noises from the pump? This would also indicate pump is drawing air.

Jerky is a good word. Trying to lower the loader and bucket is anything but smooth. My wife was watching from the house and thought I was goofy. I told her it was not my doing...

The dealer is coming to the house to fix the rear hydraulic remote lever tomorrow anyway. The lever was not located within the empty slot next to the 3 point hydraulic - instead the lever is in conflict with the seat so my thigh bears on top of the lever & not very comfortable. Adding the rear remote may have introduced air into the system.

I will say I thought I smelled hydraulic oil burning while plowing the driveway.

Hope to learn more tomorrow.

Regards,

Yooper Dave
 
   / Very Jumpy Hydraulics #5  
I will say that these hydraulics are on the zippy side. If all is normal, you'll become accustomed to feathering the control to your liking with a bit of practice.
 
   / Very Jumpy Hydraulics #6  
Won't lower smoothly is definitely a valve problem. I replaced the one on my Branson for this reason. I have been around equipment my whole life and there was no feathering that valve.
 
   / Very Jumpy Hydraulics #7  
the XJ has pretty high hydraulic flow for the size of cylinders on the loader. Like Tomplum said, Have to learn to feather... The backhoe also very "jerky" and the higher the RPM's the worse it is because there is more flow.
 
   / Very Jumpy Hydraulics
  • Thread Starter
#8  
the XJ has pretty high hydraulic flow for the size of cylinders on the loader. Like Tomplum said, Have to learn to feather... The backhoe also very "jerky" and the higher the RPM's the worse it is because there is more flow.

I just got my 60" Berlon snow bucket and had to try it out.

The up and curl features are as smooth as hoped.

Lowering the bucket is like riding a bucking bronco. I felt I should put 1 arm in the air and wear a number on my back.

There was no way any feathering was going to lower the bucket smoothly.

I have been operating loaders on tractors for 40 years and this one is as unique as I have ever known.

The dealer is implying 'user error'.

I am implying a fix is needed.

Yooper Dave
 
   / Very Jumpy Hydraulics #9  
I just got my 60" Berlon snow bucket and had to try it out.

The up and curl features are as smooth as hoped.

Lowering the bucket is like riding a bucking bronco. I felt I should put 1 arm in the air and wear a number on my back.

There was no way any feathering was going to lower the bucket smoothly.

I have been operating loaders on tractors for 40 years and this one is as unique as I have ever known.

The dealer is implying 'user error'.

I am implying a fix is needed.

Yooper Dave

Did it do this with the normal bucket on it or just this new bucket? The larger bucket is most likely heavier and causing the jerky motion. When I got my tractor it had an oversized bucket on it and I had to learn how to feather it to keep this from happening. It only happened on the initial input from my controls, not all the way down.
 
   / Very Jumpy Hydraulics
  • Thread Starter
#10  
Did it do this with the normal bucket on it or just this new bucket? The larger bucket is most likely heavier and causing the jerky motion. When I got my tractor it had an oversized bucket on it and I had to learn how to feather it to keep this from happening. It only happened on the initial input from my controls, not all the way down.

Both buckets had the same problem. I do think the problem was worse with the bigger bucket though.
 

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   / Very Jumpy Hydraulics #11  
Both buckets had the same problem. I do think the problem was worse with the bigger bucket though.

Wow, Nice bucket for moving some snow!


Are you able to take some video of this? Does it do it with both curl down and boom down? or just boom down?


In this video Compact tractor max lifting test XJ 225 - Forks vs Bucket vs 6lbs bagged concrete - YouTube @ 5:45ish with the forks and @15:00 with the bucket, I was lowering the load of concrete bags. I didnt feather it well and about lost the load but its very "jerky" because of the weight. Is this similar?
 
   / Very Jumpy Hydraulics #12  
Learned too much flow can be hard to control but factory systems should be all sized for each other part. Friend who owns tractor shop recommend flow control washers for me once on a system to help with such an issue. But a question I have as a person who does not live in snow country and seldom do we have days that are not into at least low 40s as this time of year about 55 is our average high...but if there is water in the hyd oil had would it act in your temps? I know here water in hyd oil in hot weather it can basically think turn into steam it seems but it is different viscosity and flows totally difference and makes for jerky operations. So suggestion you check your oil for water in it. At first wondered if could there be ice in the system affecting the flow but would think the system would soon get hot enough to melt any ice.
 
   / Very Jumpy Hydraulics #13  
Is the problem affected by the tractor throttle setting (which would impact hydraulic flow rate)? Is the loader motion smooth when the valve is opened wide but jumpy when opened to small settings? If so it may just be that the valve isn't particularly smooth operating -- it may crack open and close more abruptly than you are used to.

Years ago when test driving tractors I remember that some had better loader valves than others. I sort of take for granted how smooth the valves are on my Kubota, but when I use a neighbor's (different brand) tractor it feels like the valves are on/off switches. They have absolutely no precision feel to them, and are impossible to use smoothly.

Testing loader controls is something I really really advocate when shopping for new tractors. It's easy to overlook. Unfortunately some brands are not really paying attention to the quality/feel of their loader valves.
 
   / Very Jumpy Hydraulics
  • Thread Starter
#14  
Is the problem affected by the tractor throttle setting (which would impact hydraulic flow rate)? Is the loader motion smooth when the valve is opened wide but jumpy when opened to small settings? If so it may just be that the valve isn't particularly smooth operating -- it may crack open and close more abruptly than you are used to.

Years ago when test driving tractors I remember that some had better loader valves than others. I sort of take for granted how smooth the valves are on my Kubota, but when I use a neighbor's (different brand) tractor it feels like the valves are on/off switches. They have absolutely no precision feel to them, and are impossible to use smoothly.

Testing loader controls is something I really really advocate when shopping for new tractors. It's easy to overlook. Unfortunately some brands are not really paying attention to the quality/feel of their loader valves.

The dealer came over and picked up my tractor. The rear remote valve lever was repositioned into the correct slot and the loader hydraulics were fixed as well. This all seemed good until I learned remotely that the dealer was complaining about providing free pick up and delivery service. Since both issues did not need to happen if the dealer would have given the tractor a good once over before the sale, I was not sympathetic as it took a good 4 weeks for the dealer to add the rear remote valves in the first place.

I feel the attitude changed significantly for the worse after the check was cashed to purchase the tractor.
 
   / Very Jumpy Hydraulics #15  
They put the rear remote lever in the wrong slot?! I didn't know that was even possible. So we assume that the control operation passes muster now. Hopefully now you can enjoy your new tractor. Hopefully you and the dealer come to a workable understanding on how your relationship should continue.
 
   / Very Jumpy Hydraulics
  • Thread Starter
#16  
They put the rear remote lever in the wrong slot?! I didn't know that was even possible. So we assume that the control operation passes muster now. Hopefully now you can enjoy your new tractor. Hopefully you and the dealer come to a workable understanding on how your relationship should continue.

The lever was initially installed next to the seat. The top of the lever was angled toward the seat so my thigh was bearing on top of the lever which was more than uncomfortable. A quick test drive from the dealer should have invoked a questioning attitude - similar to trying out the loader before shipping out to the customer.
 
   / Very Jumpy Hydraulics #17  
The dealer came over and picked up my tractor. The rear remote valve lever was repositioned into the correct slot and the loader hydraulics were fixed as well. This all seemed good until I learned remotely that the dealer was complaining about providing free pick up and delivery service. Since both issues did not need to happen if the dealer would have given the tractor a good once over before the sale, I was not sympathetic as it took a good 4 weeks for the dealer to add the rear remote valves in the first place.

I feel the attitude changed significantly for the worse after the check was cashed to purchase the tractor.

Is it possible the dealer was upset with his people not doing the job correctly and costing the trip? One way to address with the dealer is to ask the question, "man, shame the valve and levers did not get installed properly. Cost you in correction and me in concern with tractor and wondering about my purchase."

Point out both of you were harmed and costing both of you but...it was they who caused the problem. Don't rub it in but fine to say it in normal voice just as matter of fact and leave it alone. If there is a compliment you can give or such follow up the fact with how much better the operation is now.
 
   / Very Jumpy Hydraulics
  • Thread Starter
#18  
Is it possible the dealer was upset with his people not doing the job correctly and costing the trip? One way to address with the dealer is to ask the question, "man, shame the valve and levers did not get installed properly. Cost you in correction and me in concern with tractor and wondering about my purchase."

Point out both of you were harmed and costing both of you but...it was they who caused the problem. Don't rub it in but fine to say it in normal voice just as matter of fact and leave it alone. If there is a compliment you can give or such follow up the fact with how much better the operation is now.

The dealer is pretty small - very few people & mostly family.

It also did not help when they took the tractor, they damaged my 10' wide overhead door jamb by turning too sharp and hooking the bucket on the trim. I am convinced that the owner knows nothing of the event. I am debating if I should repair the damage in the Spring or file a claim and bill them for their action.
 
   / Very Jumpy Hydraulics #19  
The dealer is pretty small - very few people & mostly family.

It also did not help when they took the tractor, they damaged my 10' wide overhead door jamb by turning too sharp and hooking the bucket on the trim. I am convinced that the owner knows nothing of the event. I am debating if I should repair the damage in the Spring or file a claim and bill them for their action.

That ship may very well have sailed if you didn't tell them about it right away. Still it is best to open a dialogue with them. You are really in this together. The folks in Bonduel?
 
   / Very Jumpy Hydraulics
  • Thread Starter
#20  
That ship may very well have sailed if you didn't tell them about it right away. Still it is best to open a dialogue with them. You are really in this together. The folks in Bonduel?

LOL - Direct Hit! Kevin, Josh & Scott
 

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