• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

Search results

  1. K

    Loader Arms

    I did some more troubleshooting on it and decided it must be the the MRV. Put a new one in it and prob went away. FYI.
  2. K

    Loader Arms

    Yes, a digital tifco gauge. It is at 3400psi right now. should be at 4350+-220.
  3. K

    Loader Arms

    Hey, got a Komatsu WA380-6 that all of a sudden had low work equip pressure. I tried to adjust the main up but it did nothing. The unload p is also lower than spec, ppc pressure is 20 psi from spec (pretty close). If you put the throttle all the way down, the arms can be lifted up. If you...
  4. K

    315c drive

    I have not pulled the case drain to see how much bypass is going out it due to the fact that this unit lives on a barge. I have to try and minimize the amount of oil loss which is very hard to do when troubleshooting hyd problems. I dont really think the flow is the problem due to the fact...
  5. K

    315c drive

    I have done everything including switching the cross overs. The pressure is about half of what the other 3 directions are (left f/r and right f). The problem always stays on right rev. All other pressures are where they should be (left f/r and right f). Is there a way to prove that the center...
  6. K

    315c drive

    Freedom On KACs you would notice a lever alignment problem, which I did not pick up on with this unit. Im not saying that that is not the problem however. I will have to pop the under panel off and take a look at how that system is put together. I have been told my a guy from this area that...
  7. K

    Hyd. thumb

    I cant remember off the top of my head but on many kac excavators there is a selector valve that shows a breaker and a grapple. You just have to turn the valve to grapple. Your particular unit may or may not have this valve on it, but if you see one (usually under the right hand cover) put it...
  8. K

    HKX Hydraulic kit

    Any kit put on by the company I work for come from HKX. We have had good luck with them, even on some odd ball set ups. I dont know if it is because of HKX or if it is due to some of the people that install them but we seem to chase leaks for about the first week or 2 then they are usually...
  9. K

    CAT vs Komatsu

    Its funny those of you who say the cats sit while the komatsus do the work. Im a field tech for kac and that is what MANY customers say (WA600s, D65s, D155s, exc)... I dont run either of them for a living so I dont really have an opinion, but I do enjoy working on my KACs.
  10. K

    315c drive

    Hey, does anyone know exactly how to adjust the drive pressure on a 315C Cat? I need to try and adjust the right rev pressure. I was told it is on the drive motor, but all I see on that is what appears to be cross over reliefs. Any ideas? Im MUCH more used to working on Komatsu equipment. Thanks
  11. K

    Hose Routing Question

    If you hook them up backwards, the lines will get all stiff and nothing happens. It might fire once or push the point out. If this happens, you know you gotem backwards.
  12. K

    Grapple will not work

    Do you in fact have that rocker switch on the left hand joy stick? If you do and when it is actuated nothing happens then it sounds like you have a wiring problem. I would check all your fuses first and make sure none are blown. Even if the decal dosnt say anything about anything, make sure...
  13. K

    Anyone know who makes ASV Hydraulic cylinders

    I have had cylinders re-chromed when they are damaged. Many times it is cheaper than buying new. Especially if your talking about 700 for a new one. US Chrome is who I use.
Top