JD 110 TLB no torque to rear wheels Hydrostat issues?
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Thread: JD 110 TLB no torque to rear wheels Hydrostat issues?

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    JD 110 TLB no torque to rear wheels Hydrostat issues?

    Trying to help my son out. He's not a member (yet) so I'm cross posting this from another board.

    He recently purchased a 110 backhoe with 1700hrs that did not move when I bought it. I've seen on different forums that it is mostly electronic so I bought it. When I got it home and starting looking at the forward/reverse potentiometers they were good. Kept digging and found the proportional valves were only getting a couple volts. Bought a new computer re-calibrated it and it moves. Great so I thought. It moves but does not have any torque. On flat ground it move both directions but would be stuck if it's off a hard surface. Will not move in c range only a range with the throttle half open. Started getting code of ground speed sensor so I replaced it with a new one. Didn't work. Throttle position sensor checks fine. Does the throttle sensor really keep the machine from having no torque??

    I put the out riggers down and raise the back tires put tranny in c range wide open tires spin at road speed. However there is no torque behind it.

    I'm starting to get worried it is the tranny. Fluids changed filters changed suction filter clean all hoses hard lines good.

    I did the charge pump test to makes​ sure the charge pump is sending 200psi

    Anybody have any other ideas? I'm at a lost besides the tranny is bad but boy that to me is hard to believe that going out.

    No codes but no power.
    All the gear ranges to function fine.
    Creeper works as specified.
    New hyd oil and filters no debris found in filter or used oil but I suspect the oil was changed before I bought it.
    Could it be in the anti stall feature?
    Lastly if it should be in the primary pump are they servicable or are there any shops around that does repairs on them? $3800 for a new unit.. (ouch)




    Thanks for any ideas you may have to offer

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    Anyone?

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    56FordGuy's Avatar
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    I'm sure there's someone that will come along that can help, but with the 110 being out of production we don't have as many members that own them. Someone will be along, but it may be a day or two.
    -Blake

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    We're thinking now that it about has to be in the primary pump being weak. We took the hoe off today and it runs better probably because it weigh's less.

    Comments welcome.

    TIA

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    johnH123's Avatar
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    Check the relief valves?
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    ajones12379's Avatar
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    Sounds like one of values not fully closing correctly .Over my head.ill think on it
    BigJim55 likes this.

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    I appreciate all the replies.
    Sounds like we may need to split the tractor...

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    If you have an amp tester, check for amperage at the proportional valves when at full speed. If serial number is below 410156,should be 950ma going to proportional valves. If after 410156, should have 1800ma. If that doesn't check ok, then unhook throttle sensor and recheck. Unhooking throttle sensor disables the load match(anti-stall) feature.
    BigJim55 likes this.

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    All good info but no fix.

    It's at the dealer now.

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    Neb
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    I'm sure that you'll find out the problem from your dealer, but since I had a somewhat similar situation with the same transmission in my 3320, I thought I'd mention that I disassembled mine to find out what was going on. Here is my 'story': http://www.greentractortalk.com/foru...tor-story.html

    Ken
    BigJim55 and ky_shawn like this.
    2007 3320 with 300CX Loader
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    Titan 42" forks
    7.5 foot Meyer truck plow, loader mounted w/Ken's crossover relief valve
    72" 7 iron mid mounted deck
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