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  1. #1
    New Member
    Join Date
    Nov 2012
    Posts
    4
    Location
    Haughton, La.
    Tractor
    YM336D

    Default YM336D Powershift

    I have a YM336D tractor and the other day when using the power shift to go forward the tractor did not respond.
    After several attempts to try and go forward or backward the tractor would not respond. Where I live we do not
    have a local tractor dealer that works on YM. The local tractor companies have tried to get the service manual
    from YM but YM will not give out that information. I called myself and found out the same thing. I'm in need of help.
    Does anyone have any information on this subject so I might be able to get my tractor fixed. Note: I have had the
    tractor for 16 years but I do not know how old the tractor is. I bought the tractor from U-Haul.

    jdoug

  2. #2
    Elite Member
    Join Date
    Dec 2009
    Posts
    2,763
    Location
    gilmer tx
    Tractor
    yanmar 2002d

    Default Re: YM336D Powershift

    All manuals are available for your 336. Here is an on line parts pdf. Also, here is a link to other manuals. They are also available on ebay. Yanmar Tractor Parts: MANUALS http://downloads.pfgaustralia.com.au...r/Y00T2140.pdf

    As far as your problem goes it could be several things. Most often it is the need to change hydraulic/transmission fluid and clean the suction strainer. Do you know the condition of yours? If you look at figure 58 in the pdf parts you can find your suction screen if you are not familiar with it. The power shift pump picks up suction through this screen. Not saying this is your problem, just suggesting #1 place to consider.

    The 336 was manufactured from 1980 through 1991.

  3. #3
    New Member
    Join Date
    Nov 2012
    Posts
    4
    Location
    Haughton, La.
    Tractor
    YM336D

    Default Re: YM336D Powershift

    Thank you so much. I appreciate the information.

    Jdoug

  4. #4
    Super Member Gary Fowler's Avatar
    Join Date
    Jun 2008
    Posts
    7,894
    Location
    Bismarck Arkansas
    Tractor
    2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010

    Default Re: YM336D Powershift

    It sounds like your hydraulic screen might be stopped up. My 4220D did the same thing and the screen(pre-filter) was stopped up with crude. I had to clean it several times when I first bought it before getting all the clay like crude cleaned out. Without hydraulic pressure, the hydraulic clutch wont engage. You may also have to change out the filter and oil to get it to work.
    The screen should be located right below the PTO shaft. Pulling it will drain all the hydraulic oil out so have a large enough container to hold all of it. My 4220 held about 7 gallons so it took two 5 gallon cans and you will spill some of it so be prepared.
    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.

  5. #5
    New Member
    Join Date
    Nov 2012
    Posts
    4
    Location
    Haughton, La.
    Tractor
    YM336D

    Default Re: YM336D Powershift

    I appreciate the information. I will have that checked first.

    jdoug

  6. #6
    Gold Member
    Join Date
    Apr 2012
    Posts
    294
    Location
    Pomona Park Florida
    Tractor
    Yanmar EX450

    Default Re: YM336D Powershift

    I had a 336D that experienced exactly the same problem. The shift handle mechanism on the steering column had worn around the roll pin until it did not fully engage the shuttle. Drilled out the holes and used a 1/4 inch bolt and nut in place of the roll pin, and all was fine.

  7. #7
    New Member
    Join Date
    Nov 2012
    Posts
    4
    Location
    Haughton, La.
    Tractor
    YM336D

    Default Re: YM336D Powershift

    I think you hit the nail on the head. I noticed that the shift arm on the power shifter was real loose when it happen.
    Thanks for telling me that.

    jdoug

  8. #8
    Gold Member
    Join Date
    Apr 2012
    Posts
    294
    Location
    Pomona Park Florida
    Tractor
    Yanmar EX450

    Default Re: YM336D Powershift

    Whatever you do, don't turn loose of the 336D. I really miss mine. Bought a new EX450, and the 336 had so many better features, it's hard to believe.

  9. #9
    Member
    Join Date
    Apr 2008
    Posts
    49
    Location
    Western Massachusetts
    Tractor
    YM 276D

    Default Re: YM336D Powershift

    Winston1,
    Does that download site have other Yanmar manuals? What's the url for the directory? Thanks

  10. #10
    Elite Member
    Join Date
    Dec 2009
    Posts
    2,763
    Location
    gilmer tx
    Tractor
    yanmar 2002d

    Default Re: YM336D Powershift

    Quote Originally Posted by wesmann View Post
    Winston1,
    Does that download site have other Yanmar manuals? What's the url for the directory? Thanks
    Here is a thread where Domush grouped them together. http://www.tractorbynet.com/forums/y...s-manuals.html

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