Results 1 to 4 of 4
  1. #1
    New Member
    Join Date
    Jul 2012
    Posts
    24
    Location
    pickton tx
    Tractor
    kubota mx 5100

    Default weak belarus 3-point

    I have a belarus 400an and the three point hitch will slowly leak down if empty and will not pick up anything heavy. I already have checked (1 the oil level (2 all connections. The oil level was fine and there were only a few oil leaks, but nothing significant enough to make it act this way. Any ideas as to what might be the cause of this problem?

  2. #2
    Super Star Member J_J's Avatar
    Join Date
    Sep 2003
    Posts
    17,352
    Location
    JACKSONVILLE, FL
    Tractor
    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: weak belarus 3-point

    Worn piston seals would be suspect for the leak down.

    Pressure is determined by the resistance to the flow. You will have max force with a good tight piston and seals in a cyl.

    Low pressure will cause a weak lift.

    3pt valve could be leaking.

    Check the pressure on the FEL relief if you have a FEL, and check the 3pt relief valve for the correct pressure. If the piston seals leak, or the valve leaks, you will not have the correct pressure.

    Most all hyd units leak down with some weight. Some more than others.
    J.J.

    When I works, I works hard. When I sits and thinks, I goes to sleep.

    Git er done.

  3. #3
    Gold Member Jimmy Joe's Avatar
    Join Date
    Aug 2008
    Posts
    339
    Location
    Medford Wisconsin

    Default Re: weak belarus 3-point

    Is the cylinder internal or external? I don,t know anything about Belarus tractors but I know of a tractor with a similar problem. It had an internal cylinder with a crack in it, was very hard to diagnose.

  4. #4
    New Member
    Join Date
    Jul 2012
    Posts
    24
    Location
    pickton tx
    Tractor
    kubota mx 5100

    Default Re: weak belarus 3-point

    Worn piston seals would be suspect for the leak down.

    Pressure is determined by the resistance to the flow. You will have max force with a good tight piston and seals in a cyl.

    Low pressure will cause a weak lift.

    3pt valve could be leaking.

    Check the pressure on the FEL relief if you have a FEL, and check the 3pt relief valve for the correct pressure. If the piston seals leak, or the valve leaks, you will not have the correct pressure.

    Most all hyd units leak down with some weight. Some more than others.
    OK I will have a look at the valves and seals when I get some time.

    Is the cylinder internal or external? I don,t know anything about Belarus tractors but I know of a tractor with a similar problem. It had an internal cylinder with a crack in it, was very hard to diagnose.
    It has an external cylinder.

Similar Threads

  1. 3-Point Hitch 169D 3 point hitch is weak
    By Johndeere3720 in forum Yanmar
    Replies: 76
    Last Post: 05-29-2011, 11:39 PM
  2. Weak point in self propelled mower?
    By slan in forum General Lawn & Garden
    Replies: 2
    Last Post: 05-13-2010, 08:25 PM
  3. Belarus
    By joeredmon in forum Hydraulics
    Replies: 1
    Last Post: 12-29-2009, 12:44 PM
  4. Weak point Kubota LA 681 loader
    By kubota00 in forum Parts/Repairs
    Replies: 7
    Last Post: 07-31-2008, 07:36 PM
  5. Belarus value
    By Indjls in forum All Other Brands
    Replies: 3
    Last Post: 07-20-2004, 09:22 AM

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.