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  1. #1
    New Member
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    Jan 2011
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    New Holland TC45

    Default Three point lift arms

    I have a New Holland TC45. Recently when lowering the backblade. I bounced it a litltle. The next time I used it, it would not lift. The front end loader works fine. After using the loader for an hour or so, w/ the three point lift control in the up position, the arms will be all the way up.I don't know if they will hold weight because I can't personaly lift any thing heavy enough to check it out. Any suggestions?

  2. #2
    Epic Contributor Soundguy's Avatar
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    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Three point lift arms

    oil clean?

  3. #3
    Elite Member JC-jetro's Avatar
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    Ford 1700, Kubota MX-4700

    Default Re: Three point lift arms

    there is a shock relief ball and spring that squirt out a bit of fluid to keep lift seal damage. This over pressure release is located in the lift cylinder head assembly. Bouncing the implement hanging in the back causes quite a bit of pressure in side the lift system. if the ball is not seated tight against the seat then you'll not be able to lift to lift. that might be a possibility.

    jc,
    Ford 1700, 2wd.
    Kubota MX-4700DT, Gear transmission with LA 884 loader, Q/A and HD bucket.
    60" Woods Rotary Cutter, home made (3-pt boom and a Row Hipper) ,King Kutter( 5 ft Tiller,Middle Buster,Single Row Cultivator,Carry-all, 5 ft blade, 6 ft Landscaping Rake ,30" Dirt Scoop and a 4'x4' Drag Harrow)

  4. #4
    New Member
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    Default Re: Three point lift arms

    Clean enough to drink. Don't think I will. Good point though. My dad always said start with the easiest thing first
    Last edited by cop; 01-20-2011 at 10:11 PM.

  5. #5
    Epic Contributor Soundguy's Avatar
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    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Three point lift arms

    might have some crud in that safety or relief valve holdin her open?

    soundguy

  6. #6
    New Member
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    New Holland TC45

    Default Re: Three point lift arms

    JC Thanks, I did have that assembly apart,wasn't sure what I was looking for. Didn't know what that whole thing was for. It all looked ok. Maybe when it warms up a little, I'll take it apart again

  7. #7
    Elite Member JC-jetro's Avatar
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    Default Re: Three point lift arms

    Quote Originally Posted by cop View Post
    JC Thanks, I did have that assembly apart,wasn't sure what I was looking for. Didn't know what that whole thing was for. It all looked ok. Maybe when it warms up a little, I'll take it apart again
    Look at the attached pdf (lift head, assembly #13 , ball and spring 17 and 18 might be the culprit. There is a outside chance that you have ruptured the list seal on the lift piston, item 45 and 46 in second pdf (lift cover)..

    JC,
    Attached Files Attached Files
    Ford 1700, 2wd.
    Kubota MX-4700DT, Gear transmission with LA 884 loader, Q/A and HD bucket.
    60" Woods Rotary Cutter, home made (3-pt boom and a Row Hipper) ,King Kutter( 5 ft Tiller,Middle Buster,Single Row Cultivator,Carry-all, 5 ft blade, 6 ft Landscaping Rake ,30" Dirt Scoop and a 4'x4' Drag Harrow)

  8. #8
    New Member
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    New Holland TC45

    Default Re: Three point lift arms

    I dont like to think about taking that apart, but it may come to that. Thanks for the help

  9. #9
    Silver Member
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    Plymouth, MA
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    Ford F6640SL Ford F5000 NH 3050 CVT Ford 2110 JD555B

    Default Re: Three point lift arms

    Sounds similar to what happened to my TC45DA. RickB suggested that I look on the top of the loader valve remove a plug and I might find that the pipe plug under it had loosened and was floating around. That's what I found all I did was clean the threads put the plug back in and I had my 3pt hitch again. Hope you are as lucky, about a 20 minute job. Attached is a picture of the valve laying on itside the top is on the left side. Plug #48 is the one you need to remove to access Plug #56 as I remeember it. Good Luck
    Attached Thumbnails Attached Thumbnails -loader-valve-gif  

  10. #10
    New Member
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    New Holland TC45

    Default Re: Three point lift arms

    I'll try that. I didn' think that was connected to the hydraulic power lift, but I can't argue with success.

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