Go BottomTROUBLES WITH MY BH90 BACKHOE PLEASE HELP
 | grassgod
Join Date: Apr 2004 Posts: 566 ct 
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2005-08-18 115065
Hi Ya'll, I dont post much these days but I try to get on here to read when I can but you guys have always solved my problems in the past so I post here today with confidence. So my problem is this: I use a bodozer grapple on my quick detach loader of my L3130, When I bought the tractor new the dealer told me the only way to power the hydraulics to the grapple was to install a rear remote & run hydraulic lines up to the loader which I did (I had them do). I have been using the grapple on & off for over a year now with no problems. Well, lately when I am grabbing something that has no give like a rock, the backhoe moves to the right & I can hear that valve sound, that pressure is telling it to move. Eventaully the backhoe hits the stabilizer leg on the right side & when it hits obviously it cant move anymore & sometimes the niose stops & sometimes it doesn't. Now the niose is then same normal niose that is would make if I were trying to operate the backhoe. Well, not only is it annoying but now because it has done this so many times now, I just reach my hand onto the backhoe controls & bring the hoe back to the center position & I usually have to force it at first but now the hoe will barley move to the left at all! It operates normal in all other directions execept to the left. Do you think the valve is broken in the backhoe control & why is the grapple reacting with the backhoe & how can I stop that from happening? Thanks in advance for your help & wisedom!
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 | Art White
Join Date: Jan 2000 Posts: 6898 Waterville New York 
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2005-08-18 115068
Oil like water,electricity and a lot of other things follows the path of least resistance. I'd have to say there might be a bad o-ring in the valve. If it's under warrantee then I'd notify the dealer and let him handle it as a time matter if you have been that busy. ....
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| grassgod
Join Date: Apr 2004 Posts: 566 ct
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2005-08-18 115071
Hey Art, My one year backhoe warrenty is over :(! Which valve are you speaking of...the valve on the backhoe or the rear remote? HOw hard are they to replace? ....
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| Art White
Join Date: Jan 2000 Posts: 6898 Waterville New York
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2005-08-19 115117
Sorry, but I belive it's in the backhoe valve bank. I don't know how much experience you have but I'd put it at two hours to remove and replace with the fix. It should be the o-rings. I'd disconnect thehoe's hydraulic and if the grapple works fine then that eliminates the remotes. I'd feel it's in the swing valve. ....
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| grassgod
Join Date: Apr 2004 Posts: 566 ct
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2005-08-19 115120
Yes today I inspected under there & noticed fluid has been leaking from there but not heavily. How hard is it to replace the o ring in there? ....
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 | harvey
Join Date: Sep 2000 Posts: 1550 Moravia, NY 
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2005-08-20 115138
PLEASE make sure you have ALL hydraulic cylinder components blocked tied or chained B4 U start any work on the valve block or bodies.
I am always amazed at how many times our professional mechanics forget this, or just think I'm not working on that circuit... and down comes the boom or blade. So far we have had no injuries other than a good soaking of hyd oil. ....
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| grassgod
Join Date: Apr 2004 Posts: 566 ct
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2005-08-20 115139
I never thought to do that...thanks Harvey! ....
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| grassgod
Join Date: Apr 2004 Posts: 566 ct
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2005-10-10 117654
Work has been beyond hectic this year & I am looking forward to getting some relaxation time in in 10 weeks when the ground freezes. I have had no time to come here & update but today its raining so I thought I would. After disassebling the backhoe valve control, I found the o ring's & seals to be out of place & damaged. I replaced them & everything is functioning as it should now but I thought I should update this thread! Thanks harvey & art for your input! ....
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| Art White
Join Date: Jan 2000 Posts: 6898 Waterville New York
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2005-10-14 117878
Glad you have fixed your problem! ....
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