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  1. #1
    Bronze Member
    Join Date
    Mar 2002
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    63
    Location
    Central NY
    Tractor
    Kubota B8200 & B7200

    Default FEL hydraulic problem

    I have a DUAL 95 FEL on my kubota B8200. The FEL has a joystick type control. Occasionally after emptying the bucket, it seems to lock up. I can raise and lower the bucket, but I cannot adjust the bucket angle until I raise the bucket all of the way. When the bucket is all the way up I can then adjust the bucket angle.

    ANy ideas on what is causing this and how to fix?


  2. #2
    Epic Contributor
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    jinman's Avatar
    Join Date
    Feb 2001
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    21,014
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    Texas - Wise County - Sunset
    Tractor
    NHTC45D, NH LB75B, Ford Jubilee

    Default Re: FEL hydraulic problem

    My first reaction is to suggest checking all your hydraulic hoses and fittings going to your bucket curl cylinders. You could have a crimped hose or a partially connected quick disconnect. You can check if your joystick control is working by the sound of the engine when you try to change the bucket angle. If the engine is loading, but the bucket isn't moving, you probably have a restriction or blockage. This may not be much help, but it's just a couple of thoughts that ran through my head as I read your post. [img]/w3tcompact/icons/hmm.gif[/img]

  3. #3
    Bronze Member
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    Mar 2002
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    63
    Location
    Central NY
    Tractor
    Kubota B8200 & B7200

    Default Re: FEL hydraulic problem

    I checked the hoses and can't see any obvious crimps or restrictions. One of the things I find puzzling about this problem is that it only occurs every now and then. The loader will be working fine for awhile, it'll hang up and then be fine again.

  4. #4
    Gold Member
    Join Date
    Nov 2001
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    323
    Location
    Northern Kentucky
    Tractor
    l245dt

    Default Re: FEL hydraulic problem

    i assume youve checked fulid levels?

  5. #5
    Silver Member
    Join Date
    Aug 2002
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    197
    Location
    Western ND
    Tractor
    JD 3020 D Huskee 20 HP x50 JD 2210, 210 FEL,54C MMM, 647 JD rototiller

    Default Re: FEL hydraulic problem

    Possibly, but dosn't sound exactly like a problem with a bucket cylinder. I once blew the piston out on a lift cyl. and the loader just "locked up" with power in either direction. Also could be something in the control valve obstructing flow. I won't say absolutely, but generally low fluid just won't go all the way up.

  6. #6

    Join Date
    May 2002
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    106
    Location
    Way North Idaho Base/US and Canada Territory
    Tractor
    Use from inventory-varies

    Default Re: FEL hydraulic problem

    Hydraulic problems are always a challenge but intermittent ones add another dimension. On the other hand it can sometimes be a sediment or obstruction that floats in plugs and then floats and unplugs.

    You never know but if everything else fails then it might be time to get into the reservoir.

  7. #7
    Epic Contributor
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    jinman's Avatar
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    21,014
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    Texas - Wise County - Sunset
    Tractor
    NHTC45D, NH LB75B, Ford Jubilee

    Default Re: FEL hydraulic problem

    Andy, there is another check you might make before you start "opening up" your tractor. You would have to wait until the problem occurs again. If/when it does, check the engine loading when you move the joystick so you can tell if the hydraulic pump and system is trying to move the bucket. Next, drop the bucket to the ground and back your tractor up to let the bucket be forced forward by the lip against the ground. After it moves a short amount, try to curl it up again with the joystick. If it goes up, you may have a cylinder that leaks internally only when it is completely extended. You may think that because you have two cylinders, the other one should lift the bucket, but because they are in parallel in the hydraulic circuit, a leak in one cylinder will bypass all fluid. If it's not a leak, then you might start looking for trash or blockage. It could also be a spool in a control valve, but that is something you'd want to have checked in the shop. I don't remember, was your tractor new or used? I know it was shipped to you from a distant dealer. It must be frustrating to have a new tractor and also have problems.[img]/w3tcompact/icons/frown.gif[/img] Good luck.

  8. #8
    Bronze Member
    Join Date
    Mar 2002
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    63
    Location
    Central NY
    Tractor
    Kubota B8200 & B7200

    Default Re: FEL hydraulic problem

    Thanks for the advice.

    I've checked the fluid level and it is good and the fluid looks good also. Regarding the tractor's history, I purchased it at an estate auction last fall. I don't know much about it other than it wasn't used a lot as the owner had many other toys to play with including a back hoe and at least four other tractors.

    The next time I have the problem I'll try lowering the bucket and checking for an internal leak.

    The only other problem I have noticed is that its capacity seems a little low for a 48" wide loader as it cannot lift much more than 500lbs. If I try to pick up much more than this, it won't lift the weight and I here a loud screeching noise which I'm assuming is the relief valve.

  9. #9

    Join Date
    Jul 2001
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    1,806
    Location
    Houston, TX.
    Tractor
    2001 TN65, 1951 8N Ford

    Default Re: FEL hydraulic problem

    That is probably your problem. How does your three point hitch work? If it's slow and weak look at the main relief. If it works OK look at the loader relief valve. I've seen them with seats busted in half and the check ball looking like a lump of gravel. Bucket curl uses the rod side of the cylinder, it takes a lot more pressure to curl than dump. You lift with the piston side of the lift cylinder, that's why it'll still go up with low pressure. If this doesn't make sense, holler and I'll try to explain it another way. Anyway, you have to fix the obvious problem first.

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