BH75 hydraulic power

[Stef]

I bought my BH75 last year and it worked great at first. But I feel like my backhoe is not as powerful as it was at the beginning. It seems that I get jammed more often. When time comes to rip off a stump the bucket seems to jam easily. The leak down is quite fast. I have to use the boom lock pin if I don't use the backhoe within the hour because the bucket gets in the way in no time.

I don't know what to do. I talked with my dealer and he told me that I complain for nothing, it's normal. I don't understand because my former BX23 was incredible on that, virtually no leak down at all (nothing for the loader, a tiny little bit for the backhoe). My backhoe was still up and almost in fully raised position overnight. Now things are very different with my B3030 and BH75. My FEL is great though, no leak down whatsoever, but the BH75 is on the ground in no time. The stabilizers too drop a lot.

One guy told me once to be attentive if I can hear an abnormal "hissing sound" when using the backhoe. I'm not an expert, all I can do is compare my BH75 with the one on my former BX23. It seems, to me, when I compare that my control valve does a lot of "hissing sounds". Much more than the one on a BX23 and probably more now than it was when it was brand new.

So, what do you think about that guys? Does it seem to be a problem with the control valve (probably) are the cylinders? As I said, I'm not an expert but I understand the mechanical of a valve and a cylinder. I know that it could be an O-ring or a seal (or more than one) in the control valve leaking a bit when the spool is moving thus losing pressure (not all of it but enough to prevent maximum pressure thus maximum power). But your opinions are important to me guys. Thanks

There's a positive point here though, I cannot bend my cylinders because I don't have the hydraulic power to do it.

If you have any similar experiences as mine don't hesitate to drop a reply. I'm sure I'm not the only one in a situation like that.

 

[Stef]

I bought my BH75 last year and it worked great at first. But I feel like my backhoe is not as powerful as it was at the beginning. It seems that I get jammed more often. When time comes to rip off a stump the bucket seems to jam easily. The leak down is quite fast. I have to use the boom lock pin if I don't use the backhoe within the hour because the bucket gets in the way in no time.

I don't know what to do. I talked with my dealer and he told me that I complain for nothing, it's normal. I don't understand because my former BX23 was incredible on that, virtually no leak down at all (nothing for the loader, a tiny little bit for the backhoe). My backhoe was still up and almost in fully raised position overnight. Now things are very different with my B3030 and BH75. My FEL is great though, no leak down whatsoever, but the BH75 is on the ground in no time. The stabilizers too drop a lot.

One guy told me once to be attentive if I can hear an abnormal "hissing sound" when using the backhoe. I'm not an expert, all I can do is compare my BH75 with the one on my former BX23. It seems, to me, when I compare that my control valve does a lot of "hissing sounds". Much more than the one on a BX23 and probably more now than it was when it was brand new.

So, what do you think about that guys? Does it seem to be a problem with the control valve (probably) are the cylinders? As I said, I'm not an expert but I understand the mechanical of a valve and a cylinder. I know that it could be an O-ring or a seal (or more than one) in the control valve leaking a bit when the spool is moving thus losing pressure (not all of it but enough to prevent maximum pressure thus maximum power). But your opinions are important to me guys. Thanks

There's a positive point here though, I cannot bend my cylinders because I don't have the hydraulic power to do it.

If you have any similar experiences as mine don't hesitate to drop a reply. I'm sure I'm not the only one in a situation like that.

 

[wushaw]

I have the BH75 also and it is used on an L2800.
When I have the hoe mounted it has never been up longer than about 10min before it is pulling on another stump and I don't leave it up when I shut the tractor down..only the stabilizers are left up with enough room to leak down without hitting anything.
I had one of the stabalizers fall overnight once and it didn't do it again, I thought that was funny/weird...I have fully expected them to just fall overnight anyway.
Mine has hissed (I think it's press relief valve) from day one and I just pulled a 15" Bodark/Osage Orange tree up last week and I know my previous BH would have had me cutting them roots with a chainsaw.

My previous BH which was a bradco would do as your BH75 does if I left the hoe on and did just FEL work I was always raising the hoe back up or a stabilizer.

Maybe you could be used to the power now and feel that it maybe week.

 

[wushaw]

I have the BH75 also and it is used on an L2800.
When I have the hoe mounted it has never been up longer than about 10min before it is pulling on another stump and I don't leave it up when I shut the tractor down..only the stabilizers are left up with enough room to leak down without hitting anything.
I had one of the stabalizers fall overnight once and it didn't do it again, I thought that was funny/weird...I have fully expected them to just fall overnight anyway.
Mine has hissed (I think it's press relief valve) from day one and I just pulled a 15" Bodark/Osage Orange tree up last week and I know my previous BH would have had me cutting them roots with a chainsaw.

My previous BH which was a bradco would do as your BH75 does if I left the hoe on and did just FEL work I was always raising the hoe back up or a stabilizer.

Maybe you could be used to the power now and feel that it maybe week.

 

[Bob53]

Stef

I have to keep the pin in , expecially when moving or within 15mins the bucket gets too low, been that way since got it, dealer looked at it said was normal. It does seem strange the Fel will stay up all night, the backhoe never would, pin in is probly good idea since a lot of wieght on that cyliner from bounching when moving.
As far as the power, yeah might be good, since I broke one in half and bent the second. I am not impressed on hoe for stump removal, expecially if ground is rocky. If hoe stops or jams when taking out stump, I would not try and rock or anything, go for a smaller root.
if i had to do over, i think i would have went with Woods hoe from what i read here. One of the dealers that bidded my tractor only sold the woods hoes with Kubota, or thats what his display models all had anyway.

 

[Bob53]

Stef

I have to keep the pin in , expecially when moving or within 15mins the bucket gets too low, been that way since got it, dealer looked at it said was normal. It does seem strange the Fel will stay up all night, the backhoe never would, pin in is probly good idea since a lot of wieght on that cyliner from bounching when moving.
As far as the power, yeah might be good, since I broke one in half and bent the second. I am not impressed on hoe for stump removal, expecially if ground is rocky. If hoe stops or jams when taking out stump, I would not try and rock or anything, go for a smaller root.
if i had to do over, i think i would have went with Woods hoe from what i read here. One of the dealers that bidded my tractor only sold the woods hoes with Kubota, or thats what his display models all had anyway.

 

[BandDcabinet]

I have about 70 hrs. on the machine. The loader will remain in position for hours with say a bucket of sand in it. The BH stays in position without the pin except when I am using the loader frequently. I noticed this during the winter. When plowing I would occasionally need to reach back and lift the boom. I wouldn't say it was excessive but certainly noticeable. One of the outriggers will slowly drop over time. From Weekend to weekend it drops about 1/3 of the way down. I haven't noticed any loss of digging force.

When did you do the servicing of the hydraulic filters etc.?

 

[BandDcabinet]

I have about 70 hrs. on the machine. The loader will remain in position for hours with say a bucket of sand in it. The BH stays in position without the pin except when I am using the loader frequently. I noticed this during the winter. When plowing I would occasionally need to reach back and lift the boom. I wouldn't say it was excessive but certainly noticeable. One of the outriggers will slowly drop over time. From Weekend to weekend it drops about 1/3 of the way down. I haven't noticed any loss of digging force.

When did you do the servicing of the hydraulic filters etc.?

 

[KubotaOne]

My BH75 has hissed from day one, I just thought it was normal. Mine drops quickly too, I always have the pin in when I'm not using it. The stabilizers barely drop at all though. I have had mine for a year now and I can't say I've noticed any decrease in power.

Just a heads up for you guys. The joysticks on mine became really "sloppy" over time, it was slow so I never really noticed it, but it got so bad that I started to lose the curl function. I removed the control cover and noticed that virtually every single little nut and bolt was loose, some just ready to fall off. I tightened them all up and it's working perfectly again.

Overall I'm very pleased with the BH

 

[KubotaOne]

My BH75 has hissed from day one, I just thought it was normal. Mine drops quickly too, I always have the pin in when I'm not using it. The stabilizers barely drop at all though. I have had mine for a year now and I can't say I've noticed any decrease in power.

Just a heads up for you guys. The joysticks on mine became really "sloppy" over time, it was slow so I never really noticed it, but it got so bad that I started to lose the curl function. I removed the control cover and noticed that virtually every single little nut and bolt was loose, some just ready to fall off. I tightened them all up and it's working perfectly again.

Overall I'm very pleased with the BH

 

[BandDcabinet]

For what it's worth I have no hissing... at least nothing I can hear.

Thanks for the loose nuts info. I'll take a look. I haven't noticed the levers becoming loose.

 

[BandDcabinet]

For what it's worth I have no hissing... at least nothing I can hear.

Thanks for the loose nuts info. I'll take a look. I haven't noticed the levers becoming loose.

 

[Stef]

I changed hydraulic filters and oil at 50hrs. I'm now at 78.

Let me explain what I think about "hissing sound". When using hydraulic cylinders there's always some hissing. The control valve does some and, of course, the relief valve. The problem is, if there's too much hissing when the joysticks are half way (pretty much the same sound as the relief valve) it means that pressurized oil leaks through the seal, thus reducing speed, power and causes leak down.

I don't know, maybe I'll look into it this summer. My experience with my dealer tells me that if I want something done I should do it myself. But there's the warranty. I'll probably buy a kit of seals and O-rings and change it. My dealer won't be happy, I'm sure it'd take some hours to remove the control valve, open it, change the seals and put it all back together. It sounds interesting though. If I see a big difference I'll post my results for sure.

 

[Stef]

I changed hydraulic filters and oil at 50hrs. I'm now at 78.

Let me explain what I think about "hissing sound". When using hydraulic cylinders there's always some hissing. The control valve does some and, of course, the relief valve. The problem is, if there's too much hissing when the joysticks are half way (pretty much the same sound as the relief valve) it means that pressurized oil leaks through the seal, thus reducing speed, power and causes leak down.

I don't know, maybe I'll look into it this summer. My experience with my dealer tells me that if I want something done I should do it myself. But there's the warranty. I'll probably buy a kit of seals and O-rings and change it. My dealer won't be happy, I'm sure it'd take some hours to remove the control valve, open it, change the seals and put it all back together. It sounds interesting though. If I see a big difference I'll post my results for sure.

 

[ArkCivEngr]

I'm not really sure about the hissing, but mine would drop a few inches in an hour or so of loader work if the pin wasn't in. I always put the pin in now.

As for your outriggers (stabilizers) dropping: you might want to get an air (and preferably water) hose and blast/clean all of the joints of your control levers. My right stabilizer was dropping overnight until I went in and cleaned everything out. What probably happened was a small piece of dirt or rock, or piece of wood had gotten down in there, wedged against the joint, and caused the valve to be ever-so-slightly out of "neutral." After a good cleaning, it hasn't dropped at all since.

 

[ArkCivEngr]

I'm not really sure about the hissing, but mine would drop a few inches in an hour or so of loader work if the pin wasn't in. I always put the pin in now.

As for your outriggers (stabilizers) dropping: you might want to get an air (and preferably water) hose and blast/clean all of the joints of your control levers. My right stabilizer was dropping overnight until I went in and cleaned everything out. What probably happened was a small piece of dirt or rock, or piece of wood had gotten down in there, wedged against the joint, and caused the valve to be ever-so-slightly out of "neutral." After a good cleaning, it hasn't dropped at all since.

 

[Devildog]

Stef, I also have to pin mine. I really dont know about the hissing noise Ill have to pay a little more attention to it next time. I did make a wooden platform for mine to sit on due to the leak down factor and trying to get the hydraulic hoses hooked back up /forums/images/graemlins/frown.gif

 

[Devildog]

Stef, I also have to pin mine. I really dont know about the hissing noise Ill have to pay a little more attention to it next time. I did make a wooden platform for mine to sit on due to the leak down factor and trying to get the hydraulic hoses hooked back up /forums/images/graemlins/frown.gif

 

[wushaw]

</font><font color="blue" class="small">( My BH75 has hissed from day one, I just thought it was normal. Mine drops quickly too, I always have the pin in when I'm not using it. The stabilizers barely drop at all though. I have had mine for a year now and I can't say I've noticed any decrease in power.

Just a heads up for you guys. The joysticks on mine became really "sloppy" over time, it was slow so I never really noticed it, but it got so bad that I started to lose the curl function. I removed the control cover and noticed that virtually every single little nut and bolt was loose, some just ready to fall off. I tightened them all up and it's working perfectly again.

Overall I'm very pleased with the BH )</font>

I had one fall out so I reemed all the holes out to .250 and used better hardware (aircraft stuff with steel locking nuts).
The origional holes were 6mm and .250 is just a few thousands bigger.
There is just no joy with a limp joystick /forums/images/graemlins/blush.gif

 

[wushaw]

</font><font color="blue" class="small">( My BH75 has hissed from day one, I just thought it was normal. Mine drops quickly too, I always have the pin in when I'm not using it. The stabilizers barely drop at all though. I have had mine for a year now and I can't say I've noticed any decrease in power.

Just a heads up for you guys. The joysticks on mine became really "sloppy" over time, it was slow so I never really noticed it, but it got so bad that I started to lose the curl function. I removed the control cover and noticed that virtually every single little nut and bolt was loose, some just ready to fall off. I tightened them all up and it's working perfectly again.

Overall I'm very pleased with the BH )</font>

I had one fall out so I reemed all the holes out to .250 and used better hardware (aircraft stuff with steel locking nuts).
The origional holes were 6mm and .250 is just a few thousands bigger.
There is just no joy with a limp joystick /forums/images/graemlins/blush.gif