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hydralics

  1. JohnDeere310D

    310D loader control not working

    So today I was moving snow with the 310D and I felt the loader control turn about an inch clockwise away from me. The loader still works, but now the dumping position barely moves the bucket. Any ideas as to what’s wrong? Common problem?
  2. D

    Need help with identifying this piece. Please help me

    I have a 2013 volvo ecr58. Bought it not running. Got it running and it has weak hydraulics. But everything works. I checked the filters and they were clogged with a slime like substance in the hydraulic tank. So I decided to clean the tank. After pumping all the fluid out (The fluid was dark...
  3. D

    Case 680K Sudden loss of all Hydraulics

    Hey there everyone. Long time reader First time poster. I've recently ran into an issue that has me stumped. I've got a mid 80s Case 680K construction King. Bought it about a year ago and it's been a good worker. I've been slowly updating things here and there to make her a nice machine. On...
  4. T

    Bobcat 442 slow swing but speeds up when right stick is bumped

    My boss purchased a 442 at auction. (I have since learned to Google common issues before letting him bid) Anyways we have been getting some of the kinks worked out of it. One issue is we noticed that at times it is slow to swing but if you bump the right stick while swinging it will swing way...
    • twglue
    • Thread
    • bobcat 442 diagnosis help me hydralics slow hydraulics swing issue swing slow
    • Replies: 0
    • Forum: Compact Excavators
  5. J

    Kobelco sk130ur-1e

    Hi all, I’m hoping someone can help me out with my kobelco digger it’s year 2000 imported model sk130ur-1e into Australia. my problem is I’ve pretty much lost all function on the left hand hydraulic circuit eg no slew, dipper arm has power out but nothing coming in and left hand track minimal...
  6. B

    Vio30-1 Dipper Cylinder Stops Mid-Stroke

    I just bought a Yanmar Vio30-1 and the hydraulics seem a little weak. Noticed the dipper function will retract fine, but when extending, it will slow down and stop for a second or 2, then keep extending. I can also hear the hoses on the boom make a screeching sound when running that function as...
  7. A

    Super High Temperature Actuators

    Hello folks, I am posting here with an odd question and I am not really sure this is the place I should go, but I figured someone could at least point me in the right direction. I am a mechanical engineer specializing in servo-hydraulic systems and I have some ideas for a super high temperature...
  8. Z

    Issue in electric hydraulic pump system

    One hypothesis is that there is air in the line but there may be a larger story at play. Please see the full length of this 60 second video. A few details: -the issue does not present when initially running the pump, but presents after making 10-15 presses -I checked the hydraulic reservoir...
  9. J

    Komatsu, c30-1 which

    There’s an issue because we’re not getting any return oil on the hydraulic steering pilot control circut. The other pump is working fine for the gear pump . So my best guess is that there’s something backing up one of those valves for the travel . Everything works it just won’t move . It builds...
  10. T

    Bobcat S150 Tilt Stuck

    Hey team, new to the forum. I recently purchased a 2005 Bobcat S150 on auction. It was not operational upon purchase so I had to forklift it onto my trailer. I’ve got it started but upon start the tilt cylinder goes into dump mode, lifts the front wheels off the ground, and the tilt pedal seems...
  11. E

    Cat 308c CR

    Does anyone know how to switch a 06 Cat 308C CR from a hammer to use a thumb? The foot pedal is currently only pressurizing one side of the lines at the stick. From what I can tell, the other side looks to be plumbed as a return. Thank you
    • Elii
    • Thread
    • cat 308c cr hydralics thumb
    • Replies: 7
    • Forum: Excavators
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