Results 1 to 6 of 6
  1. #1

    Default bolens iseki G274 PTO Issue

    late 80's G274. I cannot get the PTO to spin. I can feel it lock in/go into neutral with the side lever, but I don't believe the solenoid that diverts the hydraulic fluid to the clutch is working. The wiring all the way down to the solenoid seems fine. 12 volts, Key on, switch on. The Solenoid pulls 1.9 amps. Does anyone know if I should hear the solenoid click? If I remove the solenoid from the flow valve will it be pressurized other than the spring and residual fluid? Any other ideas on things to check? Maybe the solenoid makes no noise and is working buth there is no hydraulic pressure at the valve? is that possible? any thoughts or ideas are appreciated....

  2. #2
    Elite Member dfkrug's Avatar
    Join Date
    Feb 2004
    Posts
    4,508
    Location
    NorCal
    Tractor
    05 Kioti CK30HST w/ Prairie Dog backhoe

    Default Re: bolens iseki G274 PTO Issue

    I fixed my neighbor's G274 PTO problem, several years ago.

    It turns out the spool valve was sticking due to cruddy hyd fluid. It was
    accessible from the top of the center section of the tractor. There was
    even a small amount of corrosion on the spool, which I was able to clean
    up with some very fine sandpaper. I was concerned about my fix, but
    it has worked fine since then.

    Dirty fluid and long-term lack of use was the culprit here.
    See my TBN projects at:
    http://mysite.verizon.net/resyfcgt/

  3. #3

    Default Re: bolens iseki G274 PTO Issue

    The pto hasn't been used in over a year, so that theory seems to make sense. Are you talking about the valve that the solenoid pushes on? Its a shaft with a spring behind it and o-rings on it ? I was thinking of that as a possibility, but wasn't sure what kind of pressure would be in there so i didnt wanna tear it apart without being sure. (I've never really worked with hydraulics before) Would you just take the whole unit off and clean it out?

  4. #4
    Elite Member dfkrug's Avatar
    Join Date
    Feb 2004
    Posts
    4,508
    Location
    NorCal
    Tractor
    05 Kioti CK30HST w/ Prairie Dog backhoe

    Default Re: bolens iseki G274 PTO Issue

    Quote Originally Posted by dave2nh View Post
    Are you talking about the valve that the solenoid pushes on? Its a shaft with a spring behind it and o-rings on it ?
    Yes, the solenoid pushes on a spool valve. The spool valve is shaped
    something like a thread spool, and controls flow direction by moving
    along its axis. There are no seals on the "lands" of the spool (the high parts).
    It seals by virtue of the very close tolerances between it and the spool
    bore. If there are deposits or corrosion on it, it will not actuate, or there
    will be excessive leaking past the lands.

    My fix is not usually advisable for spool valves like this, but there was nothing
    to lose. Parts for this tractor are somewhat rare. By taking some 600
    grit carborundum paper to the spool, I was able to remove enough corrosion
    without messing up the tight clearance. Don't overdo it!

    I hope that is clear. I think the PTO diverter spool does not get flushed
    adequately with infrequent use.
    See my TBN projects at:
    http://mysite.verizon.net/resyfcgt/

  5. #5
    New Member
    Join Date
    Jun 2010
    Posts
    3

    Default Re: bolens iseki G274 PTO Issue

    Just joining TBN. I have a Bolens G274. I am about to change oil in injection pump. Breather "G" on top of pump seems frozen. Any problem with swinging on it with multigrips?

  6. #6
    Elite Member dfkrug's Avatar
    Join Date
    Feb 2004
    Posts
    4,508
    Location
    NorCal
    Tractor
    05 Kioti CK30HST w/ Prairie Dog backhoe

    Default Re: bolens iseki G274 PTO Issue

    Quote Originally Posted by Laurie View Post
    I have a Bolens G274. I am about to change oil in injection pump. Breather "G" on top of pump seems frozen. Any problem with swinging on it with multigrips?
    I am not sure what you mean by changing the oil in the injection pump.
    Do you mean you are changing the fuel filter and need to bleed air out
    of the injection pump? There is a bleeder on the pump if that is what
    you mean. "Swinging on it with multigrips" sure sounds bad.
    See my TBN projects at:
    http://mysite.verizon.net/resyfcgt/

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.