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  1. #1
    Super Member Gary Fowler's Avatar
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    Bismarck Arkansas
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    2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010

    Default B 26 backhoe running slower and slower

    My backhoe seems to be getting slower and slower and also lacking the power it had when I got it. The filters were changed at 50 hours and now it has about 220. Anyone have this problem and what did you do to fix it. I am going to go get some hydraulic filters tomorrow and change them to see if that helps. The hydrastatic drive works as it should and also the FEL seems to work OK, just the backhoe seems to be slow and it seems that when the oil gets hot, it works even slower. Relief valve may be in need of adjustment on the hoe but I dont know if there is a separate one for it from the FEL or not.
    2010 LS P-7010C 20F/20R gear tractor & FEL, 2009 Kubota B 26 TLB, RTV 900 Kubota,17 foot Lund boat with 70HP motor, 2012-20 ft 12k GVW trailer, 2011- 52" Craftsman ZTR mower, 2013 Ferris Zero Turn, 3 weed whackers, pressure washer, leaf blowers, 7 foot bush hog, 8 foot landscape rake , 8 foot 3 PH disc, 2 row cultivator, 350 amp Miller AC/DC welding machine and all the tools needed to keep them all repaired and running.

  2. #2
    Super Member Gary Fowler's Avatar
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    2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010

    Default Re: B 26 backhoe running slower and slower

    I guess no one has had this problem before. Going to the dealer today to talk with them, pick up some supplies and start working on it.
    2010 LS P-7010C 20F/20R gear tractor & FEL, 2009 Kubota B 26 TLB, RTV 900 Kubota,17 foot Lund boat with 70HP motor, 2012-20 ft 12k GVW trailer, 2011- 52" Craftsman ZTR mower, 2013 Ferris Zero Turn, 3 weed whackers, pressure washer, leaf blowers, 7 foot bush hog, 8 foot landscape rake , 8 foot 3 PH disc, 2 row cultivator, 350 amp Miller AC/DC welding machine and all the tools needed to keep them all repaired and running.

  3. #3
    Platinum Member
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    Sep 2010
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    688
    Location
    Eastern Ontario
    Tractor
    Kubota MX5100

    Default Re: B 26 backhoe running slower and slower

    The only time I experienced this with my B20 was when I got low on hydraulic fluid. Hope it's nothing major.
    2011 Kubota MX5100, BH92, BH BB72, Walco Bush Hog and Snowblower, Wallenstein 310 Splitter & Forks

  4. #4
    Member
    Join Date
    Nov 2006
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    33

    Default Re: B 26 backhoe running slower and slower

    Quote Originally Posted by Gary Fowler View Post
    My backhoe seems to be getting slower and slower and also lacking the power it had when I got it. The filters were changed at 50 hours and now it has about 220. Anyone have this problem and what did you do to fix it. I am going to go get some hydraulic filters tomorrow and change them to see if that helps. The hydrastatic drive works as it should and also the FEL seems to work OK, just the backhoe seems to be slow and it seems that when the oil gets hot, it works even slower. Relief valve may be in need of adjustment on the hoe but I dont know if there is a separate one for it from the FEL or not.
    You might want to get a pressure gauge that connects to one of the loader fittings and see what's going on with the hydraulics. I noticed this on my BX24 - not so much the speed but power regarding the loader and BH.. but did notice it was getting slower as well. I needed to bump up the pressure. There is a relief valve with a spring and shims.. There are threads on that in here somewhere and there is some one /place that sells the gauge and shims as a kit, along with instructions. It's simple to adjust, although you will need to remove a rear wheel for access. I bumped my pressure to just a tad over spec and have been pleased and amazed by the difference it made - turned it from ho-hum into a little beast!

  5. #5
    Veteran Member CHDinCT's Avatar
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    Jul 2008
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    2,420
    Location
    Connecticut
    Tractor
    Kubota BX25

    Default Re: B 26 backhoe running slower and slower

    Have you had the backhoe off recently? Even if not, you might check the quick connects to make sure they're all seated correctly. Maybe one got caught on something?

    Haven't had this issue with my BH but have had it with the FEL. A bit of a long shot, but an improperly seated QC could cause the BH to operate slowly. Hope it's nothing serious, and let us know how you make out.
    Chris

    2 acres and a mule, er, Kubota BX25, and too many other toys,er, tools to list.

  6. #6
    Super Member Gary Fowler's Avatar
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    2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010

    Default Re: B 26 backhoe running slower and slower

    I hauled it in to the dealer so they can check pressures. Shop manager seemed to think it was likely the relief valve set pressure too low. I guess they get weak with age. When I first got it, if I hung the bucket under a root it would raise the FEL bucket up off the ground, now it barely torques the backhoe enough to tell it is hung up. I dont have a service manual or gauges so I thought it best to spend the money and get it fixed at the shop this time. Oil was full up, FEL works and is h$ll for stout but the backhoe must have a separate relief valve in it somewhere not readily visible.
    I guess I will get the sticker shock of the repair cost in a few days.
    I got the filters and 2.5 gallons of UDT to do the 200/250 hour service on my kubota RTV 900 and it was $144. Oil must have been over $60 as the filter kit was $78. Proud of their oil it seems. The RTV better enjoy the UDT this time cause next time its getting Universal Transmission Fluid (UTF) from Atwoods at $10 per gallon or less when its on sale. At least I only have to change the RTV now at 220 hours so I will do a combo 200/250 hours service on it.and not the B26 (400 hours on it)
    2010 LS P-7010C 20F/20R gear tractor & FEL, 2009 Kubota B 26 TLB, RTV 900 Kubota,17 foot Lund boat with 70HP motor, 2012-20 ft 12k GVW trailer, 2011- 52" Craftsman ZTR mower, 2013 Ferris Zero Turn, 3 weed whackers, pressure washer, leaf blowers, 7 foot bush hog, 8 foot landscape rake , 8 foot 3 PH disc, 2 row cultivator, 350 amp Miller AC/DC welding machine and all the tools needed to keep them all repaired and running.

  7. #7
    Veteran Member
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    Jun 2005
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    Central NH (God's Country)
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    1984 Kubota B7200D (Sold 2015,) 2005 L39 Kubota, 2006 RTV 900 1997 Komatsu PC75UU2E w/ Thumb & Blade, 2013 Mahindra Max28XL Shuttle

    Default Re: B 26 backhoe running slower and slower

    If the B26 is like its bigger brothers, ther are two levers under the BH floor plate that have to be pushed in all the way.

  8. #8
    Member
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    Apr 2011
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    30
    Location
    Elk Park NC
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    Kubota B26TLB

    Default Re: B 26 backhoe running slower and slower

    Never had any hydraulic problems with my 2009 B26 but would be interested in the final diagnosis (my condolances in advance on the bill...). Mine sat for a while before I picked it up and currently only has about 190 hrs. If you think they're proud of UDT wait till you price 7 gal. of Super UDT (recommended). I made the mistake of using 5 galons of standard grade oil the original owner gave me on first required filter change. After listening to it chatter particularly on cold mornings and getting a lot smarter on hydraulic oils, I decided to drain the system, flush with 5 gal. of UDT (dealer recomended), toss the UDT and put in Super UDT. Pretty expensive oil change but the tractor has been purring ever since. Given the oil I used at the filter change wasn't even HST rated I can't say a good grade of HST compatible oil wouldn't work as well but decided to go the conservative route given what I'd done. One thing I did note in my kubota vs everyone else oil research was there are a lot of opinions about super UDT alternatives but no definitive answer that I could find. My humble opinion is that saving $40-$50 in maintenance $ every couple of years on $30K machine is not worth the risk.

  9. #9
    Super Member Gary Fowler's Avatar
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    2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010

    Default Re: B 26 backhoe running slower and slower

    Quote Originally Posted by CurtisC View Post
    Never had any hydraulic problems with my 2009 B26 but would be interested in the final diagnosis (my condolances in advance on the bill...). Mine sat for a while before I picked it up and currently only has about 190 hrs. If you think they're proud of UDT wait till you price 7 gal. of Super UDT (recommended). I made the mistake of using 5 galons of standard grade oil the original owner gave me on first required filter change. After listening to it chatter particularly on cold mornings and getting a lot smarter on hydraulic oils, I decided to drain the system, flush with 5 gal. of UDT (dealer recomended), toss the UDT and put in Super UDT. Pretty expensive oil change but the tractor has been purring ever since. Given the oil I used at the filter change wasn't even HST rated I can't say a good grade of HST compatible oil wouldn't work as well but decided to go the conservative route given what I'd done. One thing I did note in my kubota vs everyone else oil research was there are a lot of opinions about super UDT alternatives but no definitive answer that I could find. My humble opinion is that saving $40-$50 in maintenance $ every couple of years on $30K machine is not worth the risk.
    Funny that you should mention that. My dealer doesnt even stock SUDT and says that in our climate it is a waste of money. I did mention that my B26 does whine pretty loud all the time. I got the UDT for changing out the oil in my RTV 900. B26 is good till 400 hours now according to their maintenance schedule.
    Still no word from them on the repair. Guess I will call them up this morning and see what is happening.
    2010 LS P-7010C 20F/20R gear tractor & FEL, 2009 Kubota B 26 TLB, RTV 900 Kubota,17 foot Lund boat with 70HP motor, 2012-20 ft 12k GVW trailer, 2011- 52" Craftsman ZTR mower, 2013 Ferris Zero Turn, 3 weed whackers, pressure washer, leaf blowers, 7 foot bush hog, 8 foot landscape rake , 8 foot 3 PH disc, 2 row cultivator, 350 amp Miller AC/DC welding machine and all the tools needed to keep them all repaired and running.

  10. #10
    Super Member Gary Fowler's Avatar
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    2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010

    Default Re: B 26 backhoe running slower and slower

    Well I dont know what the problem was (is) with the slower operation. Dealer couldnt find anything wrong with it, but swapped the hydraulic lines back to original configuration. The original owner had swapped the boom and dipper stick hoses around supposedly so it operates like a Case. I had never operated one before so it didnt make any difference to me. Now I have to relearn how to operate it as everything is now backwards from the way I had learned it.
    I got some filters/oil and will change the Hydro and hydraulic filters as per maintenance schedule so I will see if that helps.
    For some reason, they didnt check the relief valve pressures so I guess I will look for someplace to buy a gauge and fittings to check it myself.
    Anyone know where I might find such an animal. Sales person at kubota dealer said they didnt sell them which didnt surprise me as they want you to come in for $75 per hour charge.
    Only cost me $150 labor cost to tell me nothing was wrong. Labor, 1 gallon of UDT oil, 2 filters = $232
    This was one time, I should have did the filter change first then seen if it didnt improve prior to taking it in.
    As I set here, I just remembered that I also needed an engine oil filter. @#$% got to go back again later for that.
    2010 LS P-7010C 20F/20R gear tractor & FEL, 2009 Kubota B 26 TLB, RTV 900 Kubota,17 foot Lund boat with 70HP motor, 2012-20 ft 12k GVW trailer, 2011- 52" Craftsman ZTR mower, 2013 Ferris Zero Turn, 3 weed whackers, pressure washer, leaf blowers, 7 foot bush hog, 8 foot landscape rake , 8 foot 3 PH disc, 2 row cultivator, 350 amp Miller AC/DC welding machine and all the tools needed to keep them all repaired and running.

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