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  1. #21
    Super Member Gary Fowler's Avatar
    Join Date
    Jun 2008
    Posts
    7,761
    Location
    Bismarck Arkansas
    Tractor
    2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010

    Default Re: What do I need or what am I missing to pull a box blade?

    Likely the pump is worn considerably and has excessive clearance to the side of the gears and when the fluid warms it bypasses a lot more. First thing you should do is replace that fluid to get rid of the water and use a thicker fluid. I have no idea what kind that old tractor uses but a AW46 or 68 would likely work at least during the summer months but might be too thick for winter use. I seem to recall some of those old tractors used a heavy gear oil in the hydraulics but either way, up the viscosity about 15 point ie, if you are supposed to use 10W use 20or even 30W oil (AW 32 is 10W AW46 I believe is 30W oil and AW 68 is 40W but my memory is not what it used to be-Google helps me a lot)
    2010 LS P-7010C 20F/20R gear tractor & FEL, 2009 Kubota B 26 TLB, RTV 900 Kubota,17 foot Lund boat with 70HP motor, 2012-20 ft 12k GVW trailer, 2011- 52" Craftsman ZTR mower, 2013 Ferris Zero Turn, 3 weed whackers, pressure washer, leaf blowers, 7 foot bush hog, 8 foot landscape rake , 8 foot 3 PH disc, 2 row cultivator, 350 amp Miller AC/DC welding machine and all the tools needed to keep them all repaired and running.

  2. #22
    Elite Member
    Join Date
    Oct 2000
    Posts
    3,044
    Location
    Windham County, Conn
    Tractor
    Ford 2120 , New Holland TN75D, Hitachi UH083LC Excavator

    Default Re: What do I need or what am I missing to pull a box blade?

    Quote Originally Posted by Gary Fowler View Post
    Likely the pump is worn considerably and has excessive clearance to the side of the gears and when the fluid warms it bypasses a lot more. First thing you should do is replace that fluid to get rid of the water and use a thicker fluid. I have no idea what kind that old tractor uses but a AW46 or 68 would likely work at least during the summer months but might be too thick for winter use. I seem to recall some of those old tractors used a heavy gear oil in the hydraulics but either way, up the viscosity about 15 point ie, if you are supposed to use 10W use 20or even 30W oil (AW 32 is 10W AW46 I believe is 30W oil and AW 68 is 40W but my memory is not what it used to be-Google helps me a lot)
    I definitely agree with Gary. The "white" fluid has to go. Not only won't it lift well, it will damage the tractor and not cool well.

    Andy

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