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  1. #1
    New Member
    Join Date
    Sep 2012
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    2
    Location
    New Orleans, LA
    Tractor
    Ford 4600

    Default Ford 4600 Hydraulic System

    My family has a Ford 4600 with a Kelley front end loader and a rear three point hydraulic mounting system. My grandfather passed away in 2001, and the tractor hasn't moved an inch until yesterday. Fluids swapped out and levels checked (oil, diesel, and coolant), the tractor started without a hiccup. Unfortunately, I have never learned how to operate the hydraulic system. Not sure whether it is user error or age of the lines, I managed to blow a hydraulic line for the front-end loader. There seems to be an on-off switch below and to the right of the drivers seat (sorry, i didnt take a photo) which I assume controls the fluid flow between the rear three point and front end loader. Could someone please offer some insight as to how this system should work? If it did blow not because of old age, should a bypass valve prevented the eruption? Only lost about half a gallon of hydraulic fluid.

    Hopefully the attached photos will work. I ordered an I&T service manual, but I dont believe this includes the aftermarket front-end loader.

    Ford 4600 Hydraulic System-camera-pics-9-1-102-a
    Ford 4600 Hydraulic System-camera-pics-9-1-134-a

    Thank you!
    ~Will

  2. #2
    Silver Member bulldog69's Avatar
    Join Date
    Apr 2010
    Posts
    153
    Location
    Rocky Face, Georgia, USA
    Tractor
    Kubota L 3000DT/ M 9000 DTC

    Default Re: Ford 4600 Hydraulic System

    Not sure about the plumbing on your tractor but if it has sat for that long I would say the age had more to do with the line blowing out than anything else. Tractors are just like everything else, it harder on them to sit than it is for them to be used daily.
    All kubota All the time

  3. #3
    New Member
    Join Date
    Sep 2012
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    2
    Location
    New Orleans, LA
    Tractor
    Ford 4600

    Default Re: Ford 4600 Hydraulic System

    Thank you Bulldog. Do you make it a practice to change out the lines after a certain time or do you use them til you lose them? I'm asking more from an equipment sustainability standpoint. Will the bursting of hydraulic lines lead to the failure of something else in the hydraulic system? For example, will a sudden decrease in hydraulic pressure harm the hydraulic pump? If this is the case, I should replace all of the lines. Otherwise, I will replace them as they fail.

  4. #4
    Elite Member
    Join Date
    Dec 2007
    Posts
    3,202
    Location
    texas
    Tractor
    7040 HDC 1153 fel

    Default Re: Ford 4600 Hydraulic System

    ok let me if i understand what your saying.you used the tractor an loader an blew out 1 of the hydro hoses on the loader.well thats an easy fix.just take the blown hose off an have a new 1 made.an then put it back on the loader.an you replace any other hoses as they blow out.

  5. #5
    Old Timer Soundguy's Avatar
    Join Date
    Mar 2002
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    51,818
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Ford 4600 Hydraulic System

    i replace mine when they blow, or if they look real damaged.

  6. #6
    Silver Member bulldog69's Avatar
    Join Date
    Apr 2010
    Posts
    153
    Location
    Rocky Face, Georgia, USA
    Tractor
    Kubota L 3000DT/ M 9000 DTC

    Default Re: Ford 4600 Hydraulic System

    Unless they just look really bad or they are starting to seep fluid I replace them as they blow. I have some older implements that the lines are 30+ yrs old. As far as damage to the system goes. The only thing that I can think of is if you continued to operate with a blown line until the entire hyd system was dry of fluid. Just hope you never bust one and get covered in hot hyd oil. It sux but that's a whole other story.
    All kubota All the time

  7. #7
    Veteran Member Jerry/MT's Avatar
    Join Date
    Feb 2008
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    2,389
    Location
    Western Montana
    Tractor
    New Holland TD95D, Ford 4610 & Ferguson TO-30

    Default Re: Ford 4600 Hydraulic System

    Your hose probably died of old age. They don't last forever so just replace that.

    I believe your tractor has a valve under the seat that ports pressure from the internal pump to the FEL conrtol valves. It's a two position valve that either allows the hydraulics to run the 3 point or the loader and is generally refered to as a selector valve. It's also possible that it allows either the 3 point to function or both the 3 pt and the loader to function. Since I'm not familiar with that specific model, I can't be more specific.

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