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hydraulic

  1. C

    2014 bobcat t590 10w30

    I have a NH 218 skid steer that the dealer recommends running 10w30 for the hydraulic system. Is it ok to do the same in the bobcat t590? When I asked the salesman yesterday he claimed bobcat hydraulic oil just says that on the bottle so he didn’t know and obviously recommended buying the bobcat oil
  2. S

    Leaking Tilt Cylinder

    I just installed a complete seal kit on this tilt cylinder on a Hyster H150F. It's leaking a smaller amount from the threads in one spot (yellow arrow) where the cap screws into the end of the cylinder. It only leaks when the cylinder is going out (tilt forward). What could I do to fix this?
  3. Troy4500Industrial

    Relief valve? Rebuild?

    Hey guys, My 74’ Case 580B has been leaking from this for a while ... I unthreaded it and replaced the o rings last year, but it’s leaking internally from under cap/c clip ... is this a relief valve and how difficult is it to repair? I can’t seem to find any schematics on it
  4. S

    Terex TB44 - Information

    I have a fairly nasty situation. My TB44 manlift was parked on a site waiting for construction to begin in a location quite far from where I live. The boom was stored in an up position. Someone decided to cut the hydraulic line that supplies hydraulic oil to the boom lift cylinder...
  5. wlhequipment

    Terex PT110 Forestry hydraulic problems.

    Hi folks, I mistakenly originally posted this in the “other earthmoving” forum; meant to post it here, so this is a bit of a repeat post, but at least now it’s in the right place. I have a Terex PT110 Forestry that is having really high back pressure on the return circuits of the high flow...
  6. H

    Case 1840

    I bought a case 1840 off a friend the other day he hasn’t touched it in 3 years he said he was driving it and the drive would go slower and slower every time he drove it then it wouldn’t move at all. the loader still works. Now would that be both drive pumps going at the same time? or could it...
    • Henkscase
    • Thread
    • case case 1840 hydraulic pump skid steer
    • Replies: 3
    • Forum: Skid Steers
  7. Mr.bear

    Ex200-2 hydraulic/electrical issue

    I have a ex200-2 that Sat for a year. Once I got the machine fired and I got no lights on the controller counsel and the hydraulics are loading up and stalling it. I went thur and tested the fuses I didn’t have the proper way to check the relays so I switched them around and nothing changed. I’m...
    • Mr.bear
    • Thread
    • electical excavator hitachi ex200-2 hydraulic
    • Replies: 2
    • Forum: Excavators
  8. E

    Mini Excavator as Logging Shovel ADD HYDRAULIC CYLINDER

    Hello, Has anyone ever added a cylinder to their compact excavator to give it better lifting capacity? I own a tree service in Oregon and am looking at buying a piece of equipment for moving and loading logs with. Shovel loaders used in forestry have a knuckle style boom where the stick...
  9. H

    Cat 955L Hydraulic Blow Out

    Hello, I recently picked up a Cat 955L 13X series for odd jobs around the farm. Was recently using it to push burn piles together in a cleared field. On one push, got a few drops of splatter of something on the front and side cab glass. Didn't think much of it (maybe a passing pterodactyl?)...
  10. J

    D5k blade angle issue

    my blade angle function just stopped on my d5k this morning serial number yyy01385. I have moved the solenoids to another function and still have nothing. I also removed the valve from the body and flushed some fluid through there to clean it out, as it has been known to stick. I also checked...
    • Jakes dozer
    • Thread
    • catd5k electical hydraulic
    • Replies: 0
    • Forum: Dozers
  11. shawnseveras

    looking to make auger but cant find the right motor

    so to begin with i am looking for a motor to build a auger, i have a bobcat t770 which operates at 23 gpm on low flow and 36.6 gpm on high flow operating with a max of 3500psi . ive looked at the augers on bobcat and they are pretty pricey. the ones that work with my machine are the 15c and up...
  12. Texasdieselfarmer

    Tobroco Giant Hydraulics

    I am currently working on a Little Giant Loader manufactured in Holland by a company named Tobroco. i Had a bunch of Electrical issues that i finally got worked out and my last issue with this loader is that it creeps in neutral. I know that i need to center the hydrostat. The machine has...
  13. S

    Hitachi EX330LC-5 hydraulic problems

    i am working on a hitachi 330 ex330lc-5 currently the machine has all but lost right side joystick and track functions, hooked up gauges to pumps and left pump reads 4,000 psi when moving functions, right side pump reads 1,500 psi when moving functions then tested the pilot signal lines to top...
  14. B

    Bobcat T 770 High Flow Hydrolic problem

    My T770 keeps jumping out of high flow. In the mornings when the hydraulic fluid is cold the high flow runs find and than after about 30 minutes is will jump out of high flow and will not go back in. Time after time and i am running a mulcher head. Does anyone know why it keeps jumping out of...
  15. CaptSkinny

    JLG 450A - valve ID

    I bought a JLG 450A that I think has some valves in the wrong position, or an incorrect valve installed. But the JLG part numbers in the manual don't match the numbers printed on the valves, which are Hydraforce part numbers (JLG's manufacturer for the OEM values), so I can't verify that they're...
  16. M

    ‘72 Case 580b hydraulic problems

    We blew a hydraulic hose under the seat for the back bucket. Got a new one and blew through to check for any blockages. Put it on, replaced hydraulic fluid. Backhoe won’t start. The Googles advises us that if we work the front bucket while simultaneously attempting to start it, we might have...
  17. N

    have 2002 a S 250

    have a 2002 S250 serial # 520711464 have a low charge pressure light. want to check pressure with gage need to know what it should be at low throttel and full throttle .if the sensor is bad will it cause the hyd be slowed?.due to miss info? this unit had both drives and hydro and pump all...
  18. J

    Cat 308 hydraulic fluid or motor oil

    I have a 97 cat 308B. I went to change the filters the hydraulic filter was milky. I am going to change to fluid. My father in law had an older JD that took motor oil in the hydraulic fluid. Does anyone know if this takes hydraulic fluid or motor oil? TIA!
    • jxa5094
    • Thread
    • cat caterpillar excavator hydraulic john deere komastsu midi
    • Replies: 0
    • Forum: Excavators
  19. I

    1044C-54 Lull Hydraulic surging Pulse problem

    I have 2 of these machines and one is worse than the other to the point we’re the machine shuts off with a heavy load I have replaced the pressure relief valve on the control valve assembly and the one on the pump I was first told it could be the accumulator not being precharged and I purchase a...
  20. Pete w

    John Deere 490 Stall

    Good morning Ladies and Gents, I need some help with a 490 we have here. Its been sitting for a while, took it to a job to use it and it kept stalling under load and if you hold a function over relief. Doesn't matter what mode its in. Changed fuel filters. Checked air filter. Purrs like a...
    • Pete w
    • Thread
    • electical hydraulic sensor stalls
    • Replies: 25
    • Forum: Excavators
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