Removing the factory front PTO housing seals for 4WD X700 series (for X749)
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Thread: Removing the factory front PTO housing seals for 4WD X700 series (for X749)

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    Removing the factory front PTO housing seals for 4WD X700 series (for X749)

    Looking for suggestions for removing the two factory seals on a 4WD JD X700 series front PTO housing (part M810730). I've used this as an opportunity to replace the fluids (which looked great, last changed at 264 hours). I haven't been able to pry them out (using a screw driver from the edge) but also want to be careful not to damage the surfaces that receive the PTO shaft seals.

    I did review the good post about the front PTO seals started by msmith56: http://www.greentractortalk.com/foru...-off-leak.html (but it didn't address original (factory) seal removal).

    One thought is to drill a hole in the center of the factory seal and use that to get some purchase to pry out w/ a screw driver but I'm concerned with bits of stuff getting
    into the front tranny. Any suggestions?

    We've just purchased a used 2012 X749 (409 hrs.) w/ a 62C deck that hasn't been used for snow blowing before. The new front PTO prior kits have been replaced by a more expensive kit BM25305 (w/ Hall effect sensor, etc. for X758 and other 4WD X700 series). I had been considering a Z-turn mower, but came across this. We have lots of fruit trees that I mow around, and since JD chose not to produce a X759 (and I have a very understanding wife / CFO), we got this one. The diesel should help with the snow blowing in Northern WI. I'm looking at a 54" blower since the X749 garden tractor is about 50+" if equipped with chains and the needed chain spacers.

    I figured that I'd prefer something smaller that could be equipped with a soft cab cover (Bercomac?) as well as better for going into the woods to collect wood, etc. I'll need to remove and reinstall the cover with all of the trees we drive around. The L130 w/ 42 inch blower doesn't always work well under some snow conditions (and sometimes gets stuck even with chains on).

    The family we bought it from are northern Illinois farmers and they're getting two X758s; one for each son for mowing around their properties associated with their 2500 acre operations. They'd have preferred the equivalent of X759's as well, but chose 4WD and diesel since they have and routinely use diesel for the BIG (green) tractors. It was explained to me by a local dealer that the regulations (EPA? or OSHA?) required the tractor in the projected weight class for a X759 would have needed a ROPS, and JD decided to drop that model, since a lot more people prefer the gasoline versions (i.e. X739) anyway. I also prefer the lower flammability of diesel over gasoline and already keep diesel around.

    Thanks, Don C.
    2015 2032R; 62D2 mower deck; H130 FEL; i-Match; ballast box; Artillinan fork, bucket; Bolt On Hooks, edge tamers.
    Land Pride 60 in. rotary mower. Behlen Country Post hole digger with 12" auger and 12" extension [Farm Star].
    2004 L130 48 in. deck w/ 42 in. Snowblower and K66 transmission added 2014
    2012 X749 w/ 62C mower and used (2015) 54" snow blower (in 2018).

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    I have no real experience removing seals myself, but I've read in the past that they are sometimes removed via a puller. You drill a hole in the metal part of the seal and thread in something that is then attached to a slide hammer so you can get purchase to yank them out. Put some grease on the drill bit to catch most of the metal shavings.

    But I have to ask... are you replacing them just to change to the newer part? You can get the same effect as the sensor by just jumping the reverse PTO override switch (I assume the older x74x has the same switch as the newer x75x). Way easier and cheaper.

    Rob
    2016 x758 w/60" HC mower, 54" snowblower, MC519 bagger
    2010 2520 w/61" H130 loader, TA 42" forks, KK 60" Pro tiller, iMatch quick hitch, KK middle buster
    1996 345 - Traded
    Other toys: Stihl BR600 backpack blower; McCulloch chainsaws: 10-10S, 700, 805, 10-10; JD trimmer

    2520:__________________________x758:__________________________Faithful 345:___________________

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    Congrats on the new to you x749, I think you'll find it great.

    The previous owner of my x729 installed that shaft so I can't help you but the installation manual says:
    1. Remove drain plug from front and rear axles and allow
    oil to drain into drain pan. (See Operator's Manual for
    instructions.)
    MX8214
    2. Remove rubber plugs (A) from front and back of front axle.

    They should be more of a plug than a standard shaft seal (like you use after you install the stub shaft.

    I wouldn't be too quick to install spacers/chains until you test traction with the AWD/Dif lock/HDAP tires... it is pretty impressive blowing snow. Either the 47 or 54 snowblower will move a ton of snow compared to your previous model.

    I'm fairly certain there isn't a good way to use the driveshaft sensor as there isn't a harness to plug it into.

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    Quote Originally Posted by dkarst View Post
    I wouldn't be too quick to install spacers/chains until you test traction with the AWD/Dif lock/HDAP tires... it is pretty impressive blowing snow.
    That's a great point. The AWD of the x7-series does a tremendous job with HDAP tires in snow/ice. I have a buddy with an x728 who has two fairly steep driveways to blow and he has gotten by for many years without chains and doesn't struggle at all. My property is flat so it is not any type of challenge for my x758. Well, unless I'm off driving in 10"+ of snow without blowing it.

    Rob
    2016 x758 w/60" HC mower, 54" snowblower, MC519 bagger
    2010 2520 w/61" H130 loader, TA 42" forks, KK 60" Pro tiller, iMatch quick hitch, KK middle buster
    1996 345 - Traded
    Other toys: Stihl BR600 backpack blower; McCulloch chainsaws: 10-10S, 700, 805, 10-10; JD trimmer

    2520:__________________________x758:__________________________Faithful 345:___________________

  7. Top | #5

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    Got them out...

    Thanks for your input. I went to the dealer where I got the BM25305 kit and spoke to some service people, who recommended prying them out with a wood chisel around the outer edges of the seals. They came out fine using a small hammer and the chisel around the edge of the seal. I wasn't sure whether the whole assembly needed to be removed, or if there was an inner seal. The whole things came out, and the prior referenced thread had some good pictures.

    Click image for larger version.

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    Click image for larger version.

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ID:	591482

    Click image for larger version.

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ID:	591490

    Got the front PTO kit installed and the transmission refilled.

    Regards, Don C.
    johnH123 and TJR345 like this.
    2015 2032R; 62D2 mower deck; H130 FEL; i-Match; ballast box; Artillinan fork, bucket; Bolt On Hooks, edge tamers.
    Land Pride 60 in. rotary mower. Behlen Country Post hole digger with 12" auger and 12" extension [Farm Star].
    2004 L130 48 in. deck w/ 42 in. Snowblower and K66 transmission added 2014
    2012 X749 w/ 62C mower and used (2015) 54" snow blower (in 2018).

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