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  1. #31
    Silver Member Varmint1's Avatar
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    Deville,La
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    JD 1010, JD 970, Farmall Super A,Komatsu D20A-5,Ford 4500,Ford 4000 forklift,Ford 640 w/703 loader

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    What oil for the transmission on the 640, also what oil goes in an SOS trans

  2. #32
    Platinum Member kf4uda's Avatar
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    Middle TN
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    NH TD5030, 861 Ford Powermaster, 555A Ford Backhoe, S150x SnapperPro ZTR, Polaris Ranger XP800

    Default Re: 640 with loader

    I use the Universal Tractor Fluid (UTF) in both the transmission and hydraulics. I think that most folks do the same. I have no knowledge about your SOS tranny.
    Chris

  3. #33
    Silver Member Varmint1's Avatar
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    Jun 2012
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    Location
    Deville,La
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    JD 1010, JD 970, Farmall Super A,Komatsu D20A-5,Ford 4500,Ford 4000 forklift,Ford 640 w/703 loader

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    Thanks for all the info, hope someone will chime in on the SOS oil

  4. #34
    Old Timer Soundguy's Avatar
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    Mar 2002
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    Central florida
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    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: 640 with loader

    hyds holds about 2g of utf fluid.

    I'd put utf in the trans and diffy for now too.

    you will soon be replacing the filed points.. but for now they will be fine.

    rings may be stuck from setting.

    put a quart of atf into the oil, and a half quart in the gas. pul lthe plugs and put a couple tablespoons down each hole and let it set a day.. run the engine over with plugs out to slig the oil.. then start back up...

  5. #35
    Old Timer Soundguy's Avatar
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    Central florida
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    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: 640 with loader

    sos trannies most deffinately take a UTF oil..

  6. #36
    Silver Member Varmint1's Avatar
    Join Date
    Jun 2012
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    175
    Location
    Deville,La
    Tractor
    JD 1010, JD 970, Farmall Super A,Komatsu D20A-5,Ford 4500,Ford 4000 forklift,Ford 640 w/703 loader

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    Did a little cleaning on the 640
    Attached Thumbnails Attached Thumbnails 640 with loader-image-2881495931-jpg   640 with loader-image-3881165565-jpg  

  7. #37
    Old Timer Soundguy's Avatar
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    Mar 2002
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    Location
    Central florida
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    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: 640 with loader

    interesting rears.. what size are they?

    check out the frotn axle.. i detect some bowing in the radius rods.

  8. #38
    Silver Member Varmint1's Avatar
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    Jun 2012
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    175
    Location
    Deville,La
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    JD 1010, JD 970, Farmall Super A,Komatsu D20A-5,Ford 4500,Ford 4000 forklift,Ford 640 w/703 loader

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    The rear tires are 13.00 x24 there are from my forklift, the tires that came with the 640 we put on the 8N, yes the front axle is about shot I'm gunna have to go get it bored and bushing back to std and get a new pin. As for the radius arm it is a little bowed but the right isn't the trunion balls have a lot of wear and slack

  9. #39
    Old Timer Soundguy's Avatar
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    Central florida
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    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: 640 with loader

    unless the balls slip out of the socket completely.. they are a non issue.

    a chain and bottle jack can usually straightent he arm.

    a metal slug, lead weight or penny can be put int he socket behind the ball.. so can a piece of inner tube.. works great..

  10. #40
    Silver Member Varmint1's Avatar
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    Jun 2012
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    Location
    Deville,La
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    JD 1010, JD 970, Farmall Super A,Komatsu D20A-5,Ford 4500,Ford 4000 forklift,Ford 640 w/703 loader

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    Anybody have a halfa$s good hood for a 600 series. I have nothing so anything would be better than nothing

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