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  1. TheOldHokie

    BH77 Hydraulic Concerns

    Show them this post and picture. Its how the backhoe is installed when there is no 3rd function. When the third function is added it replaces pipe number 1. I think yours is installed in place of pipe number 2. If you do that everytime you operate the 3rd function it over pressures the low...
  2. TheOldHokie

    I purchased a Pressure tester/Adjustment kit Any tips? 2100 PSI good starting point? BX25.

    I dont know how you hooked the gauge up but the spike is probably just the lag in the relief valve fully opening. The2000 PSI is the steady state once its open and thats what you use. Dan
  3. TheOldHokie

    BH77 Hydraulic Concerns

    BINGO - I think we are getting close and no need to apologize :) I suspect whoever installed the 3rd function did not understand the circuit and put it on the wtong side of the backhoe. The pipe (B) in this picture would go to the backoe if you did not have the third function. With a third...
  4. TheOldHokie

    BH77 Hydraulic Concerns

    OK. I see no blue dust cover in those pictures. I am beginning to think it may well be plumbed wrong but if connected as you describe its totally screwed up. Here is the pump (lower left corner) and delivery line on your tractor. Where is the hose that goes to the backhoe connected? Dan
  5. TheOldHokie

    BH77 Hydraulic Concerns

    Simple easy to answer question - do you have rear remotes on the tractor and if so are thèy OEM? Dan
  6. TheOldHokie

    Kubota udt alternative

    You dont sound like a Koolaid drinker to me 🙄
  7. TheOldHokie

    BH77 Hydraulic Concerns

    Three things worth noting: The BH77 doess not have a power beyond cabability and must NEVER supply pressure to any downstream valve. Thats the Landpride kit not the OEM kit. The valves used in both kits would still work fine if inlet and outlet were actually reversed. Now if you can explain...
  8. TheOldHokie

    BH77 Hydraulic Concerns

    See my post just below yours. I think the plumbing is probably correct and his description is backwards. Pressure (P) is coming from PB on loader valve and T is carrying that pressure over to backhoe. That's as it should be.
  9. TheOldHokie

    BH77 Hydraulic Concerns

    This has been bugging the crap out of me. I think your currwnt plumbing is correct but your description is simply backwards: The flow starts at the loader valve on the side of the transmission, goes to the P port on the 3rd function, out the T port to the backhoe and then returns to the top of...
  10. TheOldHokie

    BH77 Hydraulic Concerns

    One more question - do you also have rear remotes on the tractor? Dan
  11. TheOldHokie

    BH77 Hydraulic Concerns

    Here is the factory 3rd function for your tractor. It is mounted under the floorboards. Is this what you have or do you have something else? Dan
  12. TheOldHokie

    BH77 Hydraulic Concerns

    Those failures sound like the backhoe valve may be in the wrong place in the circuit. Your description of the plumbing is definitly incorrect. Flow should be: PUMP->LOADER->3RD FUNCTION'->BACKHOE Post a couple pictures of your plumbing so we can sort out what you actually have. Something is...
  13. TheOldHokie

    Is this the correct plan for adding a slide valve?

    Nothing special needed. You are only going to run it for the length of time it takes to swing the chute.
  14. TheOldHokie

    Is this the correct plan for adding a slide valve?

    Yes - those kinda of designs often have simple orifice plates in the axtuator ports to slow the cylinder down. Angling cylinders on truck snow plows are an example. Dan
  15. TheOldHokie

    L3901 won’t start, clicks once

    First thing to check on a no crank problem is always battery. Dan
  16. TheOldHokie

    Is this the correct plan for adding a slide valve?

    I dont know the details of the chute rotation motor but your hydraulic flow is probably more than needed and you are likely to find the chute rotates too fast. Dan
  17. TheOldHokie

    Kubota udt alternative

    Kubota likes keeping owners in the dark so probably more likely to put a lump of coal in my stocking. Dan
  18. TheOldHokie

    Is this the correct plan for adding a slide valve?

    Good plan. The documentation on the new valve should tell you port types and sizes. Given your global location my first guess would be BSPP. In North America Kubota hoses are typically JIC swivels but given your spot on the globe yours may well be BSPP. Whatever the thread type you will...
  19. TheOldHokie

    Kubota udt alternative

    M2C-134D is a Ford specification thats long obsolete and superceded by CNH specification MAT 3525. For over a decade Viscosity Oil produced all of CNH's oils in the North American market and that particular product was called Ambra Multi-G 134D CNH switched thrir oil production to Pertronas...