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  1. #11
    Elite Member
    Join Date
    Dec 2009
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    3,547
    Location
    gilmer tx
    Tractor
    Bobcat CT235

    Default Re: Drive train YANMAR FX24D

    GWSMITH was nice enough to let my brother and I go up and take a look at his FX24D. We are about 25 miles apart. Mr. Smith has given a real good description of his problem but maybe we eliminated one possibility today. Here was our findings.
    1. No rear wheel drive in any range or any gear. No unusual noises when changing ranges or gears.
    2. front wheel drive and pto both engage and work quietly.
    3. With the tractor in front wheel drive and pulling both right and left brakes will stop the tractor. (In my mind this eliminates a possible sheared or broken brake
    or pinion shaft on either side.)
    4. While moving in front wheel drive I was able to feel the differential lock pedal go down in the engaged position. It would also come back up on it's own. From experience
    on how these things work I am convinced it was sliding and engaging as it is suppose to but made absolutely no difference the the rear wheel drive. It did have to roll a
    little for the shifters to align and the pedal to go down. This is normal.
    5. Hoye had suggested a possible rear differential problem and that seems very logical and possible to me. Only thing I struggle with is no unusual noise. I will assume
    whatever is broke in there has completely lost contact therefore no noise.

    Mr. Smith has given me permission to post this and "we" would welcome any suggestions. At this time we are thinking to start taking rear tires off, hydraulic unit, etc. until the location of the problem is located. Any ideas of something else to look for or try would be great.

    Hoye sent Mr. Smith the YM276 repair manual for this tractor. Definitely similar but lots of differences too.

  2. #12
    Super Member kenmac's Avatar
    Join Date
    Feb 2005
    Posts
    6,773
    Location
    The Heart of Dixie
    Tractor
    yanmar 3110D

    Default Re: Drive train YANMAR FX24D

    If I were to say anything it would be a guess. Maybe a roll pin that holds a drive gear to a shaft has broken and the shaft is just turning inside the gear. Take all I said with a grain of salt as, it's only a guess..Winston, If you are going to be involved , there's No doubt in my mind if/when you tear into it you'll find the problem
    Last edited by kenmac; 09-24-2013 at 10:15 PM.
    A Fredricks Yanmar 3110D
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    16' Tow Master Dump Trailer ,20' Yanmar Hauler

  3. #13
    New Member
    Join Date
    Sep 2013
    Posts
    17
    Location
    Winnsboro, TX
    Tractor
    yanmar fx24d

    Default Re: Drive train YANMAR FX24D

    Kenmac, thanks for your input. In the next couple of days I hope to get the rear tires off the ground, and see if the transmission gives any power to the rear drive when there is No Load.

  4. #14
    Elite Member Car Doc's Avatar
    Join Date
    Mar 2009
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    3,246
    Location
    Kansas
    Tractor
    YM3810D Yanmar

    Default Re: Drive train YANMAR FX24D

    I dont see any way around either pulling the pto housing or the rockshaft housing now probably both when its all said and done. It sounds easy for me because I am here realize that but its time to get greasy.

    Winston has gathered up a nice list of facts and I like doing that myself its like detective work sort out what is from what isn't see who's in the game playing and not and you find the culprits.
    Yanmar YM3810D, LT duty 3pt hoe, 6' KK2 tiller, 6' KK box blade, 6 1/2' KK disc, 5' Howse bush hog, 5' Howse back blade, 9" Yellow PHD, 3 Husky chain saws 346XP NE, 359, 372XP. 07 HD Heritage Softail, Crack injectors, check compression, take 2 beers and call me. "Hey you didn't build that."

  5. #15
    New Member
    Join Date
    Sep 2013
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    17
    Location
    Winnsboro, TX
    Tractor
    yanmar fx24d

    Default Re: Drive train YANMAR FX24D

    Car Doc, Thanks for the input. No doubt about the necessity of getting greasy. Just putting it off for a few days waiting for/ hoping for some input from a person that has experienced this problem before. May be that I won't have to re-invent the wheel.

  6. #16
    Elite Member Car Doc's Avatar
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    Mar 2009
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    3,246
    Location
    Kansas
    Tractor
    YM3810D Yanmar

    Default Re: Drive train YANMAR FX24D

    Welcome!

    Well GW I expect we will be learning from you on this one as long as this has been posted someone would have by now answered if it was a common or even a known issue least I would think so.

    Fwtw there are not that many FX on here that I am aware of anyway but that said I am surprised Tractor Ernie hasn't said something. I know from his posts he has FX models and has quite a bit of knowledge on Yanmars he maybe hasn't been around? You might shoot him a PM he might stop in then?

    My logical self says its an axle but from Winstons description that shouldn't be if the brakes work. So it would be further in and part of that flow of power or all the way in to the pinion in the differential being sheared or even a side gear pinion shaft gone in the dif carrier or a side gear pinion gear busted and missing out of the carrier. just thinking out loud
    Last edited by Car Doc; 09-25-2013 at 03:12 PM.
    Yanmar YM3810D, LT duty 3pt hoe, 6' KK2 tiller, 6' KK box blade, 6 1/2' KK disc, 5' Howse bush hog, 5' Howse back blade, 9" Yellow PHD, 3 Husky chain saws 346XP NE, 359, 372XP. 07 HD Heritage Softail, Crack injectors, check compression, take 2 beers and call me. "Hey you didn't build that."

  7. #17
    Member
    Join Date
    May 2006
    Posts
    37
    Location
    England
    Tractor
    Yanmar F215

    Default Re: Drive train YANMAR FX24D

    Quote from Tractor Ernie from 2007
    "I would spring for the FX24, they are a nice tractor with the step thru design, (no shifter in the way) we have 2 of them here that we sell parts off to customers. Their only weakness is the ring & pinion gear in the rear axle.
    Just dont do high rev power shifts and you will be fine."
    I seem to remember a number of posts concerning broken ring and pinions on FX models particularly when powershifting if an overrunning clutch is not used with a rotary cutter.
    Hopefully its not the ring and pinion but the only way is to open it up and have a look.

  8. #18
    Elite Member
    Join Date
    Dec 2009
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    3,547
    Location
    gilmer tx
    Tractor
    Bobcat CT235

    Default Re: Drive train YANMAR FX24D

    Quote Originally Posted by nevis View Post
    Quote from Tractor Ernie from 2007
    "I would spring for the FX24, they are a nice tractor with the step thru design, (no shifter in the way) we have 2 of them here that we sell parts off to customers. Their only weakness is the ring & pinion gear in the rear axle.
    Just dont do high rev power shifts and you will be fine."
    I seem to remember a number of posts concerning broken ring and pinions on FX models particularly when powershifting if an overrunning clutch is not used with a rotary cutter.
    Hopefully its not the ring and pinion but the only way is to open it up and have a look.
    Nevis, that is some pretty revealing info there. Thank you for posting it. Just looking around I found a ring and pinion for sale on Hoye for an FX20D for $695. Sure hope that is not it but your post and symptoms sure point in that direction. Your post should be helpful information for those with those models to be careful. with their power shifting.

  9. #19
    New Member
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    Sep 2013
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    17
    Location
    Winnsboro, TX
    Tractor
    yanmar fx24d

    Default Re: Drive train YANMAR FX24D

    Looks like the ring and pinion gear will be the culprit. I will post progress reports and photos as we look for the culprit.

  10. #20
    Elite Member Car Doc's Avatar
    Join Date
    Mar 2009
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    3,246
    Location
    Kansas
    Tractor
    YM3810D Yanmar

    Default Re: Drive train YANMAR FX24D

    Now we are getting somewhere thanks Nevis. Sure could be a lot cheaper if it was just a spider gear busted and missing out of the carrier.
    Yanmar YM3810D, LT duty 3pt hoe, 6' KK2 tiller, 6' KK box blade, 6 1/2' KK disc, 5' Howse bush hog, 5' Howse back blade, 9" Yellow PHD, 3 Husky chain saws 346XP NE, 359, 372XP. 07 HD Heritage Softail, Crack injectors, check compression, take 2 beers and call me. "Hey you didn't build that."

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