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hydraulics

  1. posrepair2013

    Kubota kx080-3 hydraulics stalling engine

    I am working on a kubota kx080-3 v3307 engine with 8k hours. What's happening is when u are running hydraulics its killing engine u dont even have to be digging if u run a cylinder all the way out of in and hold it for a second engine will stall. It does it when machine is hot or cold. I have...
  2. Deere4430

    310 backhoe loader not working

    I have done a bit of work to this backhoe, I have rebuilt the steering valve, the loader control valves and most recently the pressure control valve (priority valve) all was okay untill I rebuilt the pressure control valve. It needed rebuilt due to the fact that the shim and orfice were stuck in...
  3. A

    Boom hydraulics replacement - twin line or two singles?

    Hey guys, long time lurker, first time poster. Anyway, I'm getting ready to re-run the boom hydraulic lines on my 1989 Grove AMZ-66 Manlift, as the originals have finally seen too much sun (polymer braid is showing at the elbows) and could soon fail. My question is this: Why should I pay extra...
  4. D

    Bobcat S70 hydraulics

    I have a 2016 bobcat s70 that showed up to my shop with a blown engine. Pulled the engine and found a hole in the Piston in cylinder 2. I was able to get parts pretty quickly and rebuild the engine. After installing the engine and letting it run and get up to temp, I shut it down and hooked up...
  5. Monkeywithawrench

    930M HYDRAULIC PUMP COUPLER FAILURE ALSO 938M LOADER

    Last week I got a call from one of my customers. He has a 930M (KTG00960) loader that seems to be a lemon. Around 2500 hrs it was out moving snow for the town. Started cutting out and dying intermittently. Turns out a hydraulic line had chafed through some of the wires for the engine ECM (1...
    • Monkeywithawrench
    • Thread
    • 930m 938m coupling failure hydraulics hydrualic failure no brakes no implements no steering
    • Replies: 14
    • Forum: Wheel Loaders
  6. C

    Hydraulics suddenly stop working

    Hi just wondering if anyone can help I have a case 580 super e that is fairly new to me that all of a sudden lost all hydrolics and steering. Not sure where to start looking for the problem.
  7. Josh L

    John Deere 450D - LC "Weak Hydraulics"

    Hey guys, I have had a complaint from an operator of "weak hydraulics" on this unit, S/N: 1FF450DXEBD914228 but I can't get access to any specs or service info from our local dealer. That's about all the story he could give me, operated it a bit and it feels fine to me but I'm not in it every...
    • Josh L
    • Thread
    • excavator hydraulics service info
    • Replies: 4
    • Forum: Excavators
  8. B

    Cat304ccr 2009 blade lacks power

    I recently purchased this excavator from a cat dealer and I'm just having a few teething issues. The blade will happily move up and down but sometimes lacks the power to lift the machine up. If I move it up and down a few times it will work but it seems to be getting worse. Any ideas are...
    • Bencat304
    • Thread
    • cat cat304 caterpillar excavator hydraulics
    • Replies: 8
    • Forum: Excavators
  9. J

    2002 Case 621D No Hydraulics

    I have a 2002 case 621D loader and while in use one day it just stopped. It will start, idle and rev up fine but it has zero hydraulics. No bucket controls, no forward or reverse, and no steering. The filters have all been replaced, the hydraulic oil level is full. When it first starts it will...
  10. schreib

    not much experience, starting cold weather

    I own only one diesel-- an ASV four cylinder track loader. When trying to start in only mildly cold weather(30°F) I had, what seems to me, significant problems. Problems were related more to keeping it going after start than starting. I expected problems and put in some diesel cold weather...
  11. Y

    New Holland LX665 Hydraulic Problem

    Just purchased a 1998 New Holland Lx665 w/ 2800 hrs on the meter. Overall good condition for the year. Here's the problem I'm having: After being warmed up and lifted from the rest position, the loader arm will creep down fairly quickly. I don't think it is the cylinder packing because I...
    • Yosh1898
    • Thread
    • hydraulic problem hydraulics l170 ls170 lx665 new holland
    • Replies: 5
    • Forum: Skid Steers
  12. S

    our 1969 case 580b hydraulics quit working while trenching. HELP

    We are not familiar with where to start with diagnosing. The previous owners let things run down quite a bit, but we felt the price was right for our needs so bought it traveling through two states to pick it up. Back to the problem at hand: We checked to see that the input shaft on the front...
  13. T

    case drain through second aux circuit?

    Many small excavators are equipped with a second (medium pressure) aux circuit which has its own pump. Can this serve as a case drain? I think it depends whether the medium pressure system has its own filter. Can anyone say? I'd be curious to know this for a Cat 312, Doosan DX140, and a...
    • tomv
    • Thread
    • aux circuit hydraulics
    • Replies: 12
    • Forum: Excavators
  14. J

    CAT E70B hydraulic problem

    I've seen threads like this one while browsing, but I have some additional questions. my E70 is dead on one side (hydraulics, right track, bucket and boom). I have switched the pump output lines and the problem moves to the other functions, so I have a bad pump, right? here's what I'm having...
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