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  1. #1
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    MF-135

    Default How can I attach verge flail mower to my tractor?

    I want to buy a verge flail mower (off set flail mower). I met a supplier through ALIBABA. But I have a problem. Suppliers have not given a correct solution for the matter.
    I choose the BCRL-145 verge flail mower. Suppliers supply only four hydraulic hoses and the mower.
    I have a Massey Ferguson 135 tractor. I want to attach the mower to it. But there is a one hydraulic out let. How can I attach this mower to my tractor?
    Thank you
    Bandara

  2. #2
    J_J
    J_J is offline
    Super Star Member J_J's Avatar
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    JACKSONVILLE, FL
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    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: How can I attach verge flail mower to my tractor?

    What do you mean about the one hyd outlet at the back.

    Show pictures.

    Is the mower a hyd driven flail mower.

    How many hyd motors and cyl are on the flail mower?

    You probably need another valve to operate the mower if more than one function is involved.
    J.J.

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

    Git er done.

  3. #3
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    Default Re: How can I attach verge flail mower to my tractor?

    Here is the picture of BCRL-145 verge flail mower

    It has two hydraulic cylinders. Flails are driven by PTO shaft. There are four hydraulic hoses to control hydraulic cylinders.
    Massey Ferguson tractor has only one hydraulic connector to connect trailer lifting cylinder.
    I think I must use two hydraulic control valves to control cylinders. How can I get the hydraulic pressure?
    Thank you
    Bandara
    Attached Thumbnails Attached Thumbnails How can I attach verge flail mower to my tractor?-sdc11956.jpg  

  4. #4
    J_J
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    Default Re: How can I attach verge flail mower to my tractor?

    You need a 2 spool valve to control 2 cyl.

    Do you have a remote valve now?
    J.J.

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

    Git er done.

  5. #5
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    Default Re: How can I attach verge flail mower to my tractor?

    I haven't a remote valve. As you said I think I must use 2 control valves. Then how can I get the hydraulic pressure from the trailer lifting outlet?

    Thank you so much
    Bandara

  6. #6
    J_J
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    Default Re: How can I attach verge flail mower to my tractor?

    If all you have now for hyd is the pump, hoses and 3pt, then you need to add a two spool valve with PB in series with the hyd flow.

    Typically the flow would go like this with a remote valve.

    Pump to IN port of 2 spool valve, OUT port/return of two spool valve would go to tank, PB out would go to the 3pt .

    On the work ports, install QD's, and then just plug in the hoses for the two cyl.

    Check and set the relief pressure.
    J.J.

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

    Git er done.

  7. #7
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    Default Re: How can I attach verge flail mower to my tractor?

    Dear J.J
    You are the only gentle man answered my questions. I tried to solve my question. These are the solutions I got.
    1) I have to connect two spool valves to control two hydraulic cylinders.
    2) The valves get the hydraulic pressure from the trailer lifting connection.
    3) I cant control horizontal or angular movements of the mower when the 3pt hitch in down ward position.
    4) I can control horizontal or angular movements of the mower when the 3pt hitch in up ward position.
    I am sorry
    English is my second language.
    I cant understand your abbreviations like , PB.,QD's,
    Bandara

  8. #8
    Platinum Member
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    Albany OR
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    Case 580B, Long 460, Allis-Chalmers 160

    Default Re: How can I attach verge flail mower to my tractor?

    Bandara, as you can tell by JJ's post count, he has helped hundreds of us on hydraulic problems, including me - but English is my ONLY language, and I still had to find out what some of the "new language" meant. I'll try to help with that, and maybe some insight on your hookup, since I've been working on a similar one.

    First, some abbreviations

    QD = Quick Disconnect, see here

    ISO 5675 Agricultural Hydraulic Quick Couplers

    PB = Power Beyond - this is a second output port on a hydraulic valve assembly. The "output", or "tank", port on most valves is NOT capable of handling high pressures that the hydraulic pump puts out, because in normal operation this output port only returns the hydraulic fluid back to the tank, where the pump then re-pressurizes it and sends it out again.

    A lot of hydraulic valves have a PB port, but not all - some offer PB as an option, often it is just an adapter that screws into a hole in the valve that would otherwise be plugged. Here's one with PB

    Surplus Center - 2 SPOOL SV VALVE OPEN CENTER W/POWER BEYOND

    If you click on the "enlarge" button on that page, you will notice that the right side of the picture shows two large "bolt heads" - these are actually plugs for the two output ports. The one closest to the center of the valve is the PB port. The picture does not show the adapter plug that goes into this port, but it comes with the valve when you order the PB version. This adapter plug is the ONLY difference (at least in this exact valve) between PB and non-PB versions. Its function is to allow full pressure output of hydraulic fluid to power a down-stream device (in your case this would be your lift (3 point hitch)

    The PB option is necessary for your application, because the NORMAL output of these (and most) valves can NOT withstand full hydraulic pressure or it will cause the inner seals of the valve to FAIL.

    You NEED this full pressure passed along to your lift, or it won't work.

    There are cheaper valves available that are a one piece casting, some offer "loader" functions - these would have one spool with spring loaded center position, plus one spool with an added "float" position.

    Like this

    Surplus Center - 2 SPOOL 8 GPM PRINCE MB21GB5C1 DA VALVE W/FLOAT

    You would also need this

    Surplus Center - P-BEYOND & CLOSED CENTER PLUG 8 GPM MB VALVES

    I would recommend this type valve because I see your flail has the same rear roller that my flail mower has - its purpose is to control mowing height. If you connect the float half of the valve to the TILT function of your flail, placing that valve in float position would allow the ROLLER to control the angle of the mower.

    Your lift valve, when lowered all the way, should allow the whole mower to rest on this rear roller - the "float" position on the half of the valve used for "tilt" would allow the roller to follow the shape of the ground for a more even cutting height.

    It isn't clear from the pic, but looks like the second hydraulic cylinder controls extending the mower more or less to the side of the tractor. This cylinder would only need the 3-position (non-float) half of a loader valve.

    I am not sure which country your MF 135 was built in, so you will probably have to trace your hydraulic system from the pump til you find the 3-point hitch lift valve - on my tractor, this valve is under the seat. There is a good chance your system is metric, since it is possible your tractor was made in Europe somewhere - once you find the connection to your lift valve, you will need to do one of two things -

    1. If you are lucky, the connection to your lift valve will be of a type and size that is available locally. If so, you may be able to get fittings and hoses to re-route this line to the INPUT of your new valve - if not, then

    2. You may need to cut your rigid hydraulic tubing and use some compression-type fittings to adapt to the type fittings your new valve needs. If this is necessary, you will need to know the EXACT OD (stands for Outside Diameter) of your existing hydraulic tubing - on my Allis Chalmers, this is 12mm.

    Example of these fittings

    Compression Fittings for Metric Hydraulic Tubing

    For more specific help, I would need to know what you find out about your specific tractor's connection types and sizes - this page may help with that

    http://www.discounthydraulichose.com...read_guide.pdf

    As to your concern about having the lift UP or DOWN - I don't think this will matter. Unless the MF 135 is different than most tractors, this is how it works -

    The system is likely to be "open center" - this means that the pump moves oil through the system and back to the tank at ALL times if the motor is running. Unless you move the lift control, there is very little pressure ANYWHERE in the system (except inside the actual lift cylinder, if the implement is not resting on the ground) -

    When you raise the implement, the lift valve TEMPORARILY sends oil to the lift cylinder, and ONLY until the position of the lift CONTROL matches the position of the lift CYLINDER - then the lift valve automatically goes back to NEUTRAL position, and once again the oil is only being pumped through the OPEN CENTER of the lift valve and back to tank. No work being done = only enough pressure to get the oil to circulate.

    It should not matter what position your lift is in for your NEW valves to work - only that you can use only ONE hydraulic function at a time and still get full hydraulic flow to that function. This means that you should be able to use the new valves REGARDLESS of your lift being up or down.

    Depending on what year your MF135 was made, it may not have flat enough fenders to mount a valve on - if so, you might need to give some thought to a way to mount the new valve so it is easy to reach and operate - if you can post a picture of your tractor it would help with this part of the project.

    It took a while to write all this, so JJ may have already answered some of your questions - I'm in the process of finding all this out for my own use, so thought I'd share some of the things I had to learn... Steve

  9. #9
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    Default Re: How can I attach verge flail mower to my tractor?

    Thank you very much Steve (BukitCase) & JJ
    I learned so many valuable things. It is a great help to me. Now I must tell you the truth. I have never seen a verge flail mower except photos & videos. My profession is civil engineering. And I am a part time highway & irrigation maintenance contractor. As maintenance contractors we have to clear growth of road sides & tank bunds. Still we are doing it manually. I am trying to introduce flail mowers for that.
    With your kind advices now I have a primary knowledge. I am happy, now I have friends to ask for a help. Thank you steve (BukitCase) for your links. I used them to learn so many things.
    I am sending an attachment of photos of my tractor. I am sorry to say I did not use it for any purpose except dragging the trailer. Today I inspect it to get an idea to couple a mower. I noticed I haven’t maintained it properly. I must repair it immediately.
    Sorry I am writing out of topic. No matter this may be a letter to thank JJ & Steve (BukitCase)
    Thank you
    Bandara
    [ATTACH=CONFIHow can I attach verge flail mower to my tractor?-r0010448.jpgHow can I attach verge flail mower to my tractor?-r0010447.jpgClick image for larger version. 

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    Attached Thumbnails Attached Thumbnails How can I attach verge flail mower to my tractor?-r0010446.jpg  

  10. #10
    Platinum Member
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    Location
    Albany OR
    Tractor
    Case 580B, Long 460, Allis-Chalmers 160

    Default Re: How can I attach verge flail mower to my tractor?

    Bandara, you're very welcome - helping others (or getting help) is the reason most of us belong to this site so don't hesitate to ask, and if you are not sure what something means just say so -

    Speaking of that, I'm not seeing anything that looks like a complete 3-point hitch on your pictures - can you take a few more, especially one that shows everything from the top of the tractor seat to the ground, and everything from outside of one rear wheel to the other? I'm concerned that your tractor may not have the necessary pieces to use ANY 3-point hitch implement.

    One picture shows a SINGLE quick disconnect and hose going to the rear - can you tell what the purpose of this is? I would guess it is controlling a single-acting (probably lift only) device of some kind, but this is normally done with the actual 3-point hitch I'm NOT seeing... Steve

    Oh, one more thing - do you by chance have any kind of manual for your tractor - either an operator or repair manual? This may help to locate where the hydraulic pump is located (MF does things a bit different than some others) - because sooner or later, you will need to trace your hydraulic system (and take more pics) to see if this project is possible at all, or just difficult (like they ALL are)

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