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hydraulic control valve

  1. M

    KX91-3 pressure relief valve

    I recently bought a kubota kx91-3. It is plumbed out to the stick for attachments. I bought an aftermarket thumb but do not know if I need a pressure relief valve or not. I called my local dealer and he didn’t seem to know what I was talking about. Any guidance is greatly appreciated.
    • M_Sweeney
    • Thread
    • excavator hydraulic control valve kx91-3 thumb
    • Replies: 2
    • Forum: Excavators
  2. T

    ED150 hydraulic pump falure

    Hey there. I have a 2008 ED-150. The hydraulic pump failed and pushed brass and metal throughout the system. I rebuilt all the rams, pulled and cleaned the tank. Pulled the big valve between the hyd. tank and the hyd. pump and cleaned it all out. No metal was found. I cleaned the pilot controls...
    • ToddS
    • Thread
    • hydraulic control valve
    • Replies: 1
    • Forum: Excavators
  3. H

    Volvo EC25 Hyd pump loading up when warm please help!

    This is my first post so ever so here we go! I am trying to fix a Volvo ec25 with a strange hydraulic issue. When the hoe is cold everything works great as soon as it starts to warm up the engine labors when operating any function! when this happens the pump sort of binds up and bogs the...
    • Huskey man
    • Thread
    • hydraulic control valve hydraulic problems volvo
    • Replies: 3
    • Forum: Excavators
  4. obix

    Michigan 75A Troubleshooting Hydraulic Spool Valve

    Hello, I'm looking for some direction in resolving what I believe is a spool valve problem. Pretty sure this is a Husco valve, what I have matches what is in the Parts/Owners manuals for the Clark Michigan 75A Series I. I've included the parts diagram from the manual for the valve. At some...
    • obix
    • Thread
    • hydraulic control valve michigan 75a spool valve
    • Replies: 17
    • Forum: Wheel Loaders
  5. A

    Caterpillar CS-533E hydraulic system

    Hello. I have a problem in my Caterpillar CS533E. It shows this indicator with alarm. I have changed the hydraulic filter, but the the fault still exists. Thank you in advance.
  6. A

    Massey Ferguson 1980s MF80 Hydraulic issue

    Hi i am working on a 1980s Massey Ferguson MF80 Backhoe and the Backhoe will not lift up and pushes hydraulic fluid out of the top seal (Images attached). I also can not find parts or any manuals on this Backhoe any help would be greatly appreciated. Was also told it could be o'rings needing...
  7. M

    thumb only works in one direction

    Takeuchi 135 min-excavator thumb will just work in one direction. Changed the lines and it will work in the other direction. Can toggle the joystick switch up and down and you can here the solenoid cycle each time but will only operate in one direction. Did over power thumb with log held in...
    • matava
    • Thread
    • auxiliary diverter valve hydraulic hydraulic control valve thumb
    • Replies: 7
    • Forum: Excavators
  8. U

    2001 D3C Series 3 Service/Repair Manual

    I'm working on a hydraulic control valve and would like to know where the best place to get a service manual for a D3C hystat Series 3 dozer, perhaps with exploded views. Thanks
    • UNK
    • Thread
    • d3c hydraulic control valve hystat service manual
    • Replies: 1
    • Forum: Dozers
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