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  1. #1
    Silver Member Brown Dog's Avatar
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    Jun 2014
    Posts
    128
    Location
    Calhoun GA
    Tractor
    John Deere 4700, 4720 & 5093E all MFD & FEL's

    Default BEFCO C70-110" RFM = FINE MACHINE

    I wanted the WIDEST Single deck RFM I could buy for my Farm.

    I was concerned about it turning slower blade spd than my Bush Hog 84" at 18,266 rpm.
    The Befco 14,998 BTS didn't cut as smooth as I was use to :-( ..... So

    I ordered the 30mm Larger Gearbox Pulley for the smaller 90" mower, and replaced the stock 250mm pulley.

    The stock belts fit jus fine with a gearbox adjustment.

    It Now Cuts MUCH SMOOTHER with Finer Clippings.

    You can hear the difference & see the clippings being slung out much farther.

    I can run one gear higher where my ground terrain allows it.

    I read the Govn't regulates manufactures blade speed. I wouldn't doubt it.

    I'm estimating my blade speed should now be around 16,650

    Btw, ONLY Whitting-Higgins makes a 4-tang socket to fit these spanner nuts. I wasn't paying $240.00 for a socket. Yea I kno - use a punch.
    I did & it cracked the nut removing it, so I ordered a 30mm-1.5 HEX Jamb nut from Fastenal with red loctite.
    The 3 blade spindle nuts that hold the pulleys on, are 35mm-1.5
    These are impossible to find in a thinner HEX nut.
    I found that a Honda CB1000 motorcycle rear axle nut is this same size BUT I didn't remove these.

    I was so excited with the Superb fine cut - I jus had to share. Thanks

  2. #2
    Member LazyHRanch's Avatar
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    Jul 2012
    Posts
    45
    Location
    West TN
    Tractor
    John Deere 3038e John Deere X540

    Default

    What HP rated tractor are you pulling that cutter with?
    There is nothing left that will eat it so I have to cut it.

  3. #3
    Silver Member Brown Dog's Avatar
    Join Date
    Jun 2014
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    128
    Location
    Calhoun GA
    Tractor
    John Deere 4700, 4720 & 5093E all MFD & FEL's

    Default Re: BEFCO C70-110" RFM = FINE MACHINE

    My John Deere is 48hp.
    I put Tubes in frt tires & filled Completely FULL with water & antifreeze.
    It does a FINE Job 10hrs every week :-)

  4. #4
    Silver Member Brown Dog's Avatar
    Join Date
    Jun 2014
    Posts
    128
    Location
    Calhoun GA
    Tractor
    John Deere 4700, 4720 & 5093E all MFD & FEL's

    Default Re: BEFCO C70-110" RFM = FINE MACHINE

    Fixin to mate this Befco RFM up to a JD 4720 66hp (eng) E-Hydro tranny.

    I'm gettin Excited

  5. #5
    Veteran Member
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    Aug 2013
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    1,960
    Location
    Parker, CO
    Tractor
    Kubota L3200hst

    Default

    Quote Originally Posted by Brown Dog View Post
    My John Deere is 48hp.
    I put Tubes in frt tires & filled Completely FULL with water & antifreeze.
    It does a FINE Job 10hrs every week :-)
    You shouldn't ever fill tires completely full. Always leave about 25% for air, or above the top of the top of the rim. If completely full the force of every little bump gets transmitted to the whole tire. You'll likely blow your tire off the rim when you hit a bit of a bump. Not to mention a rougher ride without the air to compress & soak up some shock.

  6. #6
    Silver Member Brown Dog's Avatar
    Join Date
    Jun 2014
    Posts
    128
    Location
    Calhoun GA
    Tractor
    John Deere 4700, 4720 & 5093E all MFD & FEL's

    Default Re: BEFCO C70-110" RFM = FINE MACHINE

    It's is a little firm but I don't see it could blow off the rim lol
    I've been using them since 2001 with NO issues.

    The traction is SO Much better on steep hills

  7. #7
    Silver Member Brown Dog's Avatar
    Join Date
    Jun 2014
    Posts
    128
    Location
    Calhoun GA
    Tractor
    John Deere 4700, 4720 & 5093E all MFD & FEL's

    Default Re: BEFCO C70-110" RFM = FINE MACHINE

    My JD 4720 tractor has Economy PTO Setting to get 540rpm out back at 1650 engine rpm.
    When mowing with the Befco RFM, I'm running the Engine speed at 2.000 rpm which makes about 650 PTO rpm.
    This speeds the blade tip speed up an additional 3,000 rpm.

    I'm into my second season cutting like this & Well Pleased.

    The increased blade speed now sounds like a commercial Exmark Zero Turn mower blades & about the same speed also.
    MUCH BETTER CUT NOW :-)
    Poultry Farmer
    2001 JD 4700 Power Reverser & 460 Loader
    2010 JD 4720 E-Hydro & CX400 Loader
    2012 JD 5093E Power Reverser & 563 Loader
    Bush Hog RDTH-84 Finishing Mower
    JD MX10 Lift Type Cutter
    Priefert LS-7 Litter Saver
    Dirt Dog 48" Pallet Forks
    6 7 & 8ft Hi-Volume Buckets
    BEFCO 110" Rear Finishing Mower
    1996 F350 4x4 SRW 7.3L / 2008 F350 4x4 SRW 6.4L
    1998 Ranger 4x4 4.0L / 2005 Ranger 4x4 4.0L

  8. #8
    Veteran Member
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    1,960
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    Parker, CO
    Tractor
    Kubota L3200hst

    Default

    Quote Originally Posted by Fallon View Post

    You shouldn't ever fill tires completely full. Always leave about 25% for air, or above the top of the top of the rim. If completely full the force of every little bump gets transmitted to the whole tire. You'll likely blow your tire off the rim when you hit a bit of a bump. Not to mention a rougher ride without the air to compress & soak up some shock.
    Completely correct. Every OEM tractor manual I've seen & the instructions for Bio Ballast & Rim Guard state the same.

    You need some air in there to compress & absorb shock.

  9. #9
    Silver Member Brown Dog's Avatar
    Join Date
    Jun 2014
    Posts
    128
    Location
    Calhoun GA
    Tractor
    John Deere 4700, 4720 & 5093E all MFD & FEL's

    Default Re: BEFCO C70-110" RFM = FINE MACHINE

    I exaggerated some lol
    I did have to put a little air in them to have correct psi.

    I'd GUESS ther 80-90% full of water / Afrz mix.

    It's un-believable how much it helps.

    I wouldn't ever go back.
    Poultry Farmer
    2001 JD 4700 Power Reverser & 460 Loader
    2010 JD 4720 E-Hydro & CX400 Loader
    2012 JD 5093E Power Reverser & 563 Loader
    Bush Hog RDTH-84 Finishing Mower
    JD MX10 Lift Type Cutter
    Priefert LS-7 Litter Saver
    Dirt Dog 48" Pallet Forks
    6 7 & 8ft Hi-Volume Buckets
    BEFCO 110" Rear Finishing Mower
    1996 F350 4x4 SRW 7.3L / 2008 F350 4x4 SRW 6.4L
    1998 Ranger 4x4 4.0L / 2005 Ranger 4x4 4.0L

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