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  1. #11
    Elite Member wdchyd's Avatar
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    Apr 2010
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    2,684
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    Hooksett, NH
    Tractor
    Kubota B2320

    Default Re: No power steering on a Terramite

    Quote Originally Posted by the old grind View Post
    cstamm81, that was me saying "... can't do everything for". Here's what I was told a few yrs ago: The 'obsolete' steering box hasn't been made or supported for years. There was no source of replacements or parts available even to them at the time. They were able to supply a face (thrust) seal to resolve a leak. I was cautioned by the svc mgr against disassembling the old-style (offset) steering box to replace the seal without experience or somehow-unavailable technical info/manual as being a nightmare of parts flying. I spoke to another guy who insisted that I ring him back when I was ready to be guided step by step and safely do the least necessary to change the seal. btw: For this I spoke well of TerraQuip's service a time or two ...

    The seal is an odd size not easily found at the supply houses in the size required (~ a US Quarter), tho' I'll continue to search for another source if wear might shorten its life. Here's the bit that'll get a few nod's of acknowledgement. The parts was $62, shipped in a 9x12 bubble envelope, and for another $14 Fed-Ex dropped that into the US mail for them. (well-deserved F-E bashing forgiven, as always)

    I was assured that 'upgrading' to the newer style column wasn't possible. (??) I doubt I'd want to pay their rates for one for sure, but at this point I'm beginning to wonder if I'm considered to have two left feet & ten thumbs, and getting over-cautioned advice. T-Ms are enough like giant lawn tractors that there's room to tinker under the dash. After having R&R'd the guts & gears of a DeWalt 18v hammer drill not much would scare me. I might be in that box with the new seal already, but .. (don't laugh, ok?...) I'm still pickling the steering wheel's hub in Kroil to get the !%$@ thing off the shaft in one piece without setting up an electrolysis rig to de-rust it. :-/

    Mebbe I went to far too soon with the steering drama, but believe me .. if it's all that much, I'd love to be the guy that figures out & shares for those of us with T5Cs' older steering boxes.
    Maybe I haven't read all the facts yet, but what you describe is a steering valve......with these steering valves you need to use OEM kits to reseal them, yes the parts are not common generic parts, but are repairable if you have the right seal kit

    Another factor is if you need parts other than a seal kit (shaft, geroler, valve plates) then fugitaboutit, buy a new unit, the same displacement and matching steering collumn/wheel

    As far as being obsolete I'd say that maybe the case for the dealer but seal kits are available at hydraulic shops and are not obsolete for them with the right model code tag

    Beware resealing one of these is not for the faint of heart, it requires expertise to retime the internal gears and valve plates for a successfull repair and a bench test to check integrity of the repair

    Another thing, if the steering unit is found to be faulty after troubleshooting, then replace it......a seal kit will not fix a mechanical problem internally.....these are very fussy units

    Do you guys have pix of the steering units on these Terramites??
    2010 Kubota B2320 FEL & BH65
    If it ain't fixed don't broke it!

    http://www.tractorbynet.com/content/...-month-wdchyd/

  2. #12
    Super Star Member J_J's Avatar
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    Sep 2003
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    16,677
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    JACKSONVILLE, FL
    Tractor
    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: No power steering on a Terramite

    Looking at the T5D, and the T5C may be the same, the hydrostatic pump feeds the steering valve.

    About 3/4 down in the PDF Illustration 4.42

    http://ww3.grandrental.com/Portals/1...n%20Manual.pdf
    Attached Thumbnails Attached Thumbnails -ww3-grandrental-com-portals-109-a   -ww3-grandrental-com-portals-109-a  
    Last edited by J_J; 01-03-2013 at 10:22 AM.
    J.J.

    When I works, I works hard. When I sits and thinks, I goes to sleep.

    Git er done.

  3. #13
    Platinum Member the old grind's Avatar
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    Jul 2012
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    616
    Location
    Mid-Michigan
    Tractor
    NH T-1520 HST, JD 5210 2WD, Terramite T5C

    Default Re: No power steering on a Terramite

    Wcdhyd, "thank you for your support". My leak is apparently from accum moisture freezing inside the mast jacket and pushin'/pullin' something out of whack (No wheel center button, but deflector now in place). T-M's techs said only the input shaft's 'face seal' was damaged (internal, for sure) if it still works ok despite dribbling out & onto my britches-leg. Can I look to you for more when I get the $&!@ wheel off and the column/box out?

    JJ, I wish the pieces were just as similar as the schematics imply. My manual show an entirely different box with the T5C offset column. Apparently it's not a model diff as a 'year' thing. Thanks!

    Pics will be here when I get something going. btw: Whaddya got to soften rust when a prolonged and protected Kroil-soaking isn't working??? My puller's gouging some poly without budging up off that rusty &$%# stg-wheel spline. Electrolysis would require a mat-soak vs a dip while still on the tractor, and that sounds like a lotta fuss. Only thing else I can think of is phosphoric acid, if it cuts thru the Kroil easy enough. Other ideas??...

    cstamm81', my manual shows an exploded view of the box on P 2.16. (I'll put it up when I can get to their site.) I see the bolts holding the jacket onto the pump are also what holds the body 'stacks' together and are the first thing to get apart. I'll chance going in SAP but hopefully you won't have to if we can get your test setup right & be sure what you've got. I'd swap a hose out if you suspect pressure has leaked between its wire mesh and inner lining. btw: It might not relax much when pressure's released, so it could be easy to spot (?)...
    Last edited by the old grind; 01-03-2013 at 04:58 PM. Reason: updated to keep stay OT

  4. #14
    Silver Member
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    Sep 2011
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    near Johnstown PA
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    Allmand TLB 425

    Default Re: No power steering on a Terramite

    Heres a few pics that contain a troubleshooting chart for a very similar machine with the same steering setup.

    Ray

    -chart1-jpg-chart2-jpg-chart3-jpg

  5. #15
    Silver Member
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    near Johnstown PA
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    Allmand TLB 425

    Default Re: No power steering on a Terramite

    Don't know what happened to the second image that sized it different they were all from the same file, but anyway the problem you are describing is the first one in the first image. You should either have a priority flow divided pump or a separate priority divider at the pump output, the purpose of this is to make certain that you always have flow for steering no matter what else you are using. That would be the first thing to test to make sure there is flow to the steering circuit, for a single small steering cylinder it is going to be in the 2-4 gal per minute range, I don't know the spec on Terramite steering valves though so i can't give you a rock solid number. It gets more complicated if they used load sensing, then we're really gonna need help from WDCHYD


    Ray

  6. #16
    Elite Member wdchyd's Avatar
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    Hooksett, NH
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    Kubota B2320

    Default Re: No power steering on a Terramite

    Quote Originally Posted by ptgdigger View Post
    Don't know what happened to the second image that sized it different they were all from the same file, but anyway the problem you are describing is the first one in the first image. You should either have a priority flow divided pump or a separate priority divider at the pump output, the purpose of this is to make certain that you always have flow for steering no matter what else you are using. That would be the first thing to test to make sure there is flow to the steering circuit, for a single small steering cylinder it is going to be in the 2-4 gal per minute range, I don't know the spec on Terramite steering valves though so i can't give you a rock solid number. It gets more complicated if they used load sensing, then we're really gonna need help from WDCHYD


    Ray
    Yes, true......if you don't have flow (with pressure) then nothing downsteam will work right .......the flow/load meter would come in handy here
    2010 Kubota B2320 FEL & BH65
    If it ain't fixed don't broke it!

    http://www.tractorbynet.com/content/...-month-wdchyd/

  7. #17
    Elite Member wdchyd's Avatar
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    Kubota B2320

    Default Re: No power steering on a Terramite

    Nice chart Ptgdigger.....
    2010 Kubota B2320 FEL & BH65
    If it ain't fixed don't broke it!

    http://www.tractorbynet.com/content/...-month-wdchyd/

  8. #18
    Silver Member
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    Allmand TLB 425

    Default Re: No power steering on a Terramite

    Quote Originally Posted by wdchyd View Post
    Yes, true......if you don't have flow (with pressure) then nothing downsteam will work right .......the flow/load meter would come in handy here
    Sure would, I've been coveting one ever since the other thread you talked about it

  9. #19
    Silver Member
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    Allmand TLB 425

    Default Re: No power steering on a Terramite

    Bad news , your symptoms seem like a no flow (or very low flow) issue, turns out rather than a priority gear pump or priority divider terramite uses an adapter plate in the trans to supply steering flow. So i'm betting that your troubleshooting will lead you to the transmission. You may be able to divert some flow from the auxiliary hydraulic system to have power steering but you will have to verify the working pressure of the steering system vs. the working pressure of the aux. system. If they are compatible then the only issue would be a chance that the steering would get erratic when using the loader while driving.



    Ray-terramite-trans-jpg-terramitepartskey-jpg

  10. #20
    Silver Member
    Join Date
    Aug 2009
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    Location
    Leesport, PA
    Tractor
    Mahindra 3016HST, 2003 Terramite T5C TLB

    Default Re: No power steering on a Terramite

    ptgdigger you are correct in that this is how the Terramite system works, based upon the drawings and other threads. Will I get any useful information by teeing in a pressure gauge before the steering cylinder just to see where I am at?

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