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  1. #1
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    Default how to relieve pressure on hyd. lines

    Have a 2415 4wd with a 1710b mahindra backhoe. took backhoe off 6 months ago and tried to hook it back up to tractor but could not connect hoses from
    bh to tractor there was pressure in the lines going to bh. I have 2 female and one male connections from bh that have pressure. whats the best way to release psi I rapped all three in plastic bags and sealed. bh is setting on gravel bucket is extened and setting on top of gravel pile.

  2. #2
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    Default Re: how to relieve pressure on hyd. lines

    You took it off when the weather was cold/cool and now it is hot. The oil expanded in the hose due to the heat. Since you tried tapping on the ends and no use, take a few wrenches and loosen the couplers/fittings. Often just need to do one hose.

  3. #3
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    Default Re: how to relieve pressure on hyd. lines

    Turn tractor off, push valves back and forth to make sure no pressue. Take male end rap with rag and push on a object, (such as a wrench laying on ground) try to hook again. Repeat if needed.

  4. #4
    Veteran Member AchingBack's Avatar
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    Default Re: how to relieve pressure on hyd. lines

    I don't see how you will be able to connect to the backhoe when the bucket is on top of a gravel pile. It needs to be fully extended, I believe.
    I thank God for these gifts: 2005 Mahindra 2615 HST w/loader, (485 hours), and 3710 backhoe. Markham tooth bar, Bush Hog SQ60 rotary cutter, Bush Hog 3507 angle blade, Bush Hog LLR84 landscape rake w/gauge wheels, Rankin loader mounted forks, Paumco Quick Spade, Agri-Ease 3 point log splitter.

  5. #5
    Elite Member bindian's Avatar
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    Mahindra 6520 4WD

    Default Re: how to relieve pressure on hyd. lines

    Quote Originally Posted by mmurphy View Post
    Turn tractor off, push valves back and forth to make sure no pressue. Take male end rap with rag and push on a object, (such as a wrench laying on ground) try to hook again. Repeat if needed.
    Like Mmurphy stated above, move the BH control levers back and forth and sideways and the pressure will bleed down. Then you can hook up the hoses to the tractor.
    hugs, Brandi

  6. #6
    Platinum Member Tim_in_IA's Avatar
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    Default Re: how to relieve pressure on hyd. lines

    Quote Originally Posted by bindian View Post
    Like Mmurphy stated above, move the BH control levers back and forth and sideways and the pressure will bleed down. Then you can hook up the hoses to the tractor.
    hugs, Brandi
    Don't know if you got this to work, but Brandi is right. Just move controls all around and it will relieve the pressure. Then once you hook them up it can be adjusted with the hydraulics to level it out again.
    Kubota B7610HSD, RCK60-24B MMM, LA352 Loader, Maschio 50" tiller
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  7. #7
    Elite Member bindian's Avatar
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    Default Re: how to relieve pressure on hyd. lines

    Hi Tim!
    Where have you been hiding?
    hugs, Brandi

  8. #8
    Gold Member
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    jamaica, southern vt
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    4110 mahindra

    Default Re: how to relieve pressure on hyd. lines

    normaly bh's only 2 lines ,pressure and return so i just connect the 2 together .as to how relieve the pressure move the valves if that dosn't do it you have to depress the small valve in the connector. be very careful the fuild will fly all over
    no good deed goes unpunished

  9. #9
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    Default Re: how to relieve pressure on hyd. lines

    What about releasing the pressure via the FEL valve? would that "decompress" the hydraulics? If there is pressure in the Hoe itself, then you will have to release that pressure to hook it back up. im to used to skidsteers where you either turn the key backwards or move the joystick back and forth to release the pressure.
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  10. #10
    Elite Member bindian's Avatar
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    Default Re: how to relieve pressure on hyd. lines

    Quote Originally Posted by Johndeere3720 View Post
    What about releasing the pressure via the FEL valve? would that "decompress" the hydraulics? If there is pressure in the Hoe itself, then you will have to release that pressure to hook it back up. im to used to skidsteers where you either turn the key backwards or move the joystick back and forth to release the pressure.
    JohnDeere3720,
    Depending on the plumbing installation, that might now be enough. Move the remote levers and pressure will bleed down.
    hugs, Brandi

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