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hydraulic

  1. T

    1986 c30 roll back tow truck blowing the seals out the hydraulic

    Hey I’ve got a old c30 roll back tow truck. Seems like whenever the bed bottoms out it blows the seal clean out the rear of the hydraulic. We tried repacking it twice and every-time it over pressurized and boom goes the seal and bushing right out the back. Any idea what could be causing this?
    • Tomcat955
    • Thread
    • c30 chevy hydraulic sq body tow trucks
    • Replies: 0
    • Forum: Trucks
  2. R

    Case 580B loose fittings pouring hydro

    Was using the rear bucket on my backhoe and lines starting pouring at the bucket and dipper linkages. A video is posted below. Will this require the fittings to be replaced/whats the best way to go about tighenting down the lines. Cannot reach them with my standard wrench...
  3. G

    Oil lamp + hydraulic «studder»

    Cat 302.5 ca. year 2000. Bought the machine used. 3000 hours. Installed new filters and new oil, both engine and hydraulic. The issue: Hydraulics «studder» real hard, and the oil pressure lamp lights up at the same time the studdering goes on. Seems to change a bit when I change the idling...
    • Govt
    • Thread
    • hydraulic lamp problem shaking
    • Replies: 8
    • Forum: Excavators
  4. Bad billy

    Blown hose at blade

    Blew a hose on my ex75ur hitachi .Blew it right at the blade.Does any one know where the other end of the hose connector goes .Is there a easy way to get at it ?
  5. A

    Case 580SE Hydraulic Backhoe control issue.

    Hi everyone. New here. I have a mystery year late 80s early 90s 580se backhoe with hand swing controls. Every individual control works as it should very strong (boom, stick "dipper", curl) but as soon as I ask for a two controls at once they both slow to a snails pace or dont move at all...
  6. T

    Bobcat s70 bucket curl sticking

    I had an s70 come in with a leak and bucket curl function sticking. The leak was from the bucket curl spool seal. I removed valve and resealed the valve. Did not notice any damage to spool or bore. I put everything back together and the bucket curl function was still sticking. I noticed that the...
  7. C

    Hydraulic loss of power

    Morning all, I have Komatsu PC35R-8 Serial #F21286. The machine has 1100 hours on it, had no issues when I purchased it approx 3 months ago. I does have one leaking cylinder but not critical to operation and not a significant loss. Recently I seam to lose power after the machine is on and hydro...
    • cpmartin1989
    • Thread
    • excavator filter hydraulic komatsu loss of hydraulics loss of power mini pressure
    • Replies: 13
    • Forum: Excavators
  8. R

    Bobcat 337 pilot controls not working

    I have bobcat 337 and the pilot controls work off and on changed the lockout sensor and magnet but no difference. Blade works always. Does any one have a wire diagram for it or suggestions. Thanks
  9. S

    Mini digger wont lift itself on dozer blade

    Hey, I have a 1.5t mini digger, and having trouble with the dozer blade. The mini digger cant lift itself with using only the blade. If i lift the excavator with the arm and then lower the dozer blade, it stay still. Since i now are repairing and changing parts, i want to fix this aswell. I...
    • sandymann
    • Thread
    • blade cylinder diggerblade dozerblade excavator hydraulic issue minidigger pressure weak
    • Replies: 5
    • Forum: Excavators
  10. D

    link belt 210LX adding hyd. thumb

    Recently bought an 03 link belt 210LX excavator to clean up some building sites, groves, and fencelines. It currently has a single function aux hyd system on it now. Wanting to add a hyd thumb if possible, got a quote for 8k just in parts (not inluding thumb) to add a dual function system...
    • Dan Jones
    • Thread
    • hydraulic link belt thumb thumb switch
    • Replies: 9
    • Forum: Excavators
  11. M

    Need some advice for BilJax 3632T or ANY inset end-cap outrigger cylinder disassembly

    Hello everyone, this is my first post here, and yes, I did use the search function before waiving the white flag with this post ;). I own a 2005 Bil-Jax (Haulotte) 3632T boom lift with the old-style outrigger cylinders (inset end-caps, flush to edge of cylinder wall) and am wondering if anyone...
    • mkeehn
    • Thread
    • bil-jax boom lift cylinder disassembly haulotte hydraulic inset end cap outrigger
    • Replies: 3
    • Forum: Forklifts/Telehandlers
  12. 1

    special tools for changing hydraulic hoses?

    I'm wondering if there's special tools needed to change hydraulic hoses on the 580 ck? I have all kinds and sizes of wrenches, etc.. but I'm wondering if there's anything special needed. Specifically, it looks "pretty busy" where all the hoses come together at the area beneath the backhoe tower...
  13. S

    John Deere 690ELC Excavator Instrument Panel Unidentified Warning Light

    Hello, I have a John Deere 690ELC Excavator and there's a red warning light on the instrument panel that I can't identify. It's a hydraulic warning symbol but I'm not sure what it specifically means. It only comes on when the oil is cold and the hydraulics are under moderate to heavy load. It...
    • S.Moore
    • Thread
    • 690elc hydraulic john deere symbol
    • Replies: 2
    • Forum: Excavators
  14. J

    JD 35D Hydraulic pressure for thumb

    Good afternoon. I just joined the forum here and am hoping to get some help, it looks like there is a lot of knowledge and experience on here. I recently purchased a 2012 John Deere 35D mini ex, mainly to use for some farm cleanup and landscaping work. For what I want to do I think a...
  15. L

    Cracked hydraulic pump on an 863 - how to avoid a repeat?

    I have a 1997 Bobcat 863 which cracked the hydraulic gear pump. I found that and have a new pump on order, arriving in a couple days. Now I'm trying to figure out what could have caused this issue in the first place. The crack goes directly through one of the bolt holes holding the pump onto...
    • LessWhole
    • Thread
    • bobcat bobcat 863 hydraulic relief valve
    • Replies: 11
    • Forum: Skid Steers
  16. L

    Bobcat 863: Help a noob locate / fix a leak near the hydrostatic pump

    Hi folks! Hoping you can help me with an 863, for which I've suddenly inherited care-and-feeding responsibility. Here's what I know: It's been leaking small amounts of hydraulic oil out of the back of the oil pan for a while, with no apparent operational issues (other than, ya know, leaking oil...
  17. O

    Bobcat 773 Lift Spool Leak?

    1999 Bobcat 773 1096 Hours Issue: Lifting pallet of bricks and when using the tilt was almost like it was stuck, then popped, and then tilt was fine. When pulling back into barn saw there was oil under me from the spot I lifted. Opened it up and the cap on the lift spool was on the floor of...
  18. M

    Hydraulic Issue(s)

    I have a 2015 Komatsu PC55MR-2. It is an offshore machine and naturally I have no manuals. There are 3 things that aren't right with the machine. I am not sure if they are directly connected issues so I will lay them out seperately. Issue #1 - The control valve for the dozer blade is...
  19. O

    Komatsu PC200 Lc-8 hydraulic hoses keep bursting

    Working with my pc200 with 10k hours and multiple different hydraulic hoses bursting one after another. Not sure if this is normal due to high time or a problem with the hydraulic system. First hose was on top of the boom, oil started leaking from a metal elbow connected to the hoses. Removed...
    • Operator John
    • Thread
    • excavator hose bursting hose failure hydraulic hydraulic hose hydraulic leak komatsu komatsu 200
    • Replies: 11
    • Forum: Excavators
  20. R

    Deceleration while tracking JCB JS220 2014

    Hi All, I can't find a thread addressing this issue. I have a 2014 JCB JS220 excavator. I've had the machine for a 3 months now and it has worked fine. Last week it started decelerating while tracking. The problem manifests after about 30 minutes of working. Power will come back if I...
    • Ryan P
    • Thread
    • decelerate hydraulic power tracking slow
    • Replies: 1
    • Forum: Excavators
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