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hydraulics

  1. D

    Komatsu PC20 Rexroth Valve

    Hi everyone, I’ve an old Komatsu PC20 (or FAI 232) Triple Gear pump and rexroth control valve. It has bucket in/out problems. I’ve checked the pilot pressure, low rpm engine, 10bar, when you do every other movement it goes up till 30bar but doing bucket stay still on 10, if you do combined...
  2. FDSHET

    Kubota SVL75-2 Weak/Slow Boom Lift

    I have a Kubota SVL75-2 In the shop. Came in with weak boom lift function accompanied by a chatter sound. All other functions are working perfect and will put good ground pressure down. Left boom sitting up for a few days while I completed other projects and it only lowered maybe 6”. Customer...
  3. H

    Noise from center of New Holland w170b

    Looking at buying a 2008 New Holland W170b, noticed a sound from the center section, trans/pump area. I'm not a expert in heavy equipment, I have heard this sound on other machines and never payed much mind to it, but before I buy this machine i want to make sure it's nothing bad. Almost sounds...
    • Hardlyworking
    • Thread
    • hydraulics new holland noise pump intake leak pump suction transmission w170b
    • Replies: 3
    • Forum: Wheel Loaders
  4. B

    E26 hydraulics hot

    Good morning, 2019 bobcat e26 1k hrs. -issue Operation is normal for 20-30 min. Hydraulics heat up to 138F and get slow. At this point it will continue to dig slowly and creep up in temp. Let it sit at idle and temp works its way back to normal. -actions taken. Cleaned radiator thoroughly...
  5. S

    2003 308 boom drifts one way but not the other

    03 cat 308 c cr. 6000 hours. If you raise boom all the way up and turn loose of controls it will fall to the ground in probably 20 seconds, but you can pick the machine up with the boom and it will stay there all day long. Re did packing/ seals in cylinder, still same problem. Assumed it was...
    • Stevenstl12
    • Thread
    • boom cylinder cat cylinder drift excavator hydraulics
    • Replies: 3
    • Forum: Excavators
  6. R

    '75 JD 310 Swing Cylinder Rebuild

    So I just finished rebuilding and reinstalling the swing cylinders on my 310. I took advantage of the down time while the injection pump was being rebuilt to do these and the stabilizers, all of which badly needed to be done. While working on the swing cylinders, I disconnected the hydraulic...
  7. V

    Case 885b problems with steering

    We are having issues with 1 of the graders the steering wheel turns but slowly and after a few minutes gets practically impossible to turn ,steering pump was makinga grinding noise someone replaced the steering pump and steering valve on the column but stayed the same the noise was reduced to...
  8. T

    555E Loader Woes

    I hope I'm putting this in the right place. I'm technologicallychlenged to say the least and steictly on a phone. I have a 555E backhoe and the loader will fall fairly quickly unless it's raised way up. It stays up fine if it's way up. I've repacked the cylinders thinking I had an internal leak...
  9. W

    ''cat 303cr No pilot controls

    I have a 303CR, serial DMA-05055. I have been trying for a while to diagnose hydraulic or electrical issues. I have the unit running now and all electrical issues seem to be fixed. But, I still can't figure out the pilot controls issue. Blade functions as it should but I don't have any other...
  10. D

    2011 Deere 319d Track Loader Raccoon-Wiring

    First time post, as I’ve not needed to post here before, but I’ve got a dilemma on my hands…a baby raccoon got into the cab of my 2011 319d (PIN: 1T0319DACB0196639) through the handle hole and died. Before he expired, it appears that he and his momma tore hell out of the cab interior and a lot...
  11. M

    Hitachi ex60urg hydraulic problem

    I bought a ex60urg from an auction and everything was running good. I noticed climbing a hill it would bog the motor down but would run fine after it warmed up. Then last night I was moving dirt and I noticed the left track not engaging unless I used the boom, arm ,bucket curl or the right...
    • mack688s
    • Thread
    • hitachi ex60urg hydraulics swing issue track issues
    • Replies: 11
    • Forum: Excavators
  12. M

    Takeuchi TB016 drive motor hose replacement

    Hi, I have leaking hose to the drive motor. I tried to remove it from bottom, but there is not enought place for any tool I tried. The hose i need is the lowest. I then remove frame parts to be able to unscrew the swivel joint from top. But I do not know if it is possible with bottom hoses...
  13. A

    2014 Genie 5519 Radiator keeps cracking and blowing out hydraulic fluid

    2014 Genie 5519 Telehandler Bought this lift a couple of years ago.. Has about 1900 hours on the telehandler. Worked fine for a couple of years. Then the radiator/hydraulic cooler cracked and blows all hydraulic fluid out. We had the radiator core replaced and welded, reinstalled and worked...
  14. C

    Cat 215 Hydraulics Weak after 30 mins

    Hello all, First time posting but have been appreciating the forum's knowledge for a few years now. I have new equipment and old, would prefer the older mechanical stuff hands down any day of the week! Spring of 2023 I purchased a 1984 Cat 215 excavator. Serial Number 95Z00796-12Z06465 I am an...
    • chedens
    • Thread
    • cat 215 diagnostics hot hydraulic oil hydraulics mechanical diesel old machine running weak weak hydraulics
    • Replies: 6
    • Forum: Excavators
  15. S

    2 way aux hydraulics on Cat 420D what is needed?

    I have a 2004 cat 420D that came with auxiliary hydraulics on the boom. It also came with a small foot pedal (push switch) with a 2 prong plug in. The previous owner was using it to run a breaker. The question is, it currently only has one way hydraulic flow, what will I need to purchase to...
  16. S

    Using aux hydraulic port to feed EH valve bank for multi function attachments

    Good morning, I have a 2005 cat 420D with aux hydraulics on the hoe end. I currently have the electric foot switch to turn the flow on or off for a hoe-pack or breaker, and 2 lines on the boom. I would like to install a grapple with rotation on it, it has a small electric over hydraulic...
  17. Jrod

    Hydraulic test kit for Volvo ecr58 fittings?

    Hello Gents, Come springtime I plan on pressure testing hydraulics on a 2012 Volvo ecr58. It's my 1st machine ever owned and not familiar with the different metric sizes of these machines. Can any of you seasoned vets out there direct me to 'good' kit to test all the ports on this machine...
    • Jrod
    • Thread
    • hydraulics pressure test volvo
    • Replies: 2
    • Forum: Excavators
  18. K

    Hitachi ex200 hydraulic/engine problem

    My hitachi 200exlc-3 is loaded up on her hydraulic pump with her idled up really high and when I start using the hydraulics the engine wants idle down and shut off I had a scanner plugged into it and was told to change the angle sensor, so after paying 1300 for the angle sensor I changed it...
  19. M

    JD 270 Loader lockout

    My work has a JD270 and I had the brakes lock up on me, bypassed that with a switch, the loader worked after the repair, another worker worked on the skid steer and now the loader wont work and we can’t figure it out, the pedals were locked out, I bypassed the pedal lockout but the loader still...
    • Mahoman
    • Thread
    • 270 hydraulics john deere skid steer
    • Replies: 0
    • Forum: Skid Steers
  20. T

    ASV R265 hydraulic whine

    Morning all. I have an ASV R265 with 1200 hours on it. The hydraulics is starting to whine when the oil warms up. This occurs when you are idling. If you go to drive, ie: push the stick forward very slightly the whine goes away. It's like the bypass valve is 'squealing' not the best description...
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