1. 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!
  2. ALL NEW MEMBERS READ THIS FIRST!! Thank you for joining Heavy Equipment Forums! If you are new to forums we communicate with "Threads", please search our threads to see if your topic may have already been answered and if not then click "Post New Thread" in the appropriate forum. This will allow all of our members to see your question and give you the best chance to be answered. After you've made a number of posts you will graduate to Full Member status where you'll see a few more privileges. Following these guidelines will help make this the best resource for heavy equipment on the net. Thanks for joining us and I hope you enjoy your stay!!

345b excavator

Discussion in 'Excavators' started by tagaman, Feb 3, 2017.

Tags:
?

My 345b excavator cuts engine off when I try to operate implements at the same time traction is slow

Poll closed Feb 17, 2017.
  1. Excavator

    0 vote(s)
    0.0%
  2. Caterpillar

    0 vote(s)
    0.0%
Multiple votes are allowed.
  1. tagaman

    tagaman Member

    Joined:
    Dec 1, 2016
    Messages:
    12
    Location:
    southafrica
    My 345b excavator cuts engine off when I try to operate implements at the same time traction is slow but engine runs perfectly
     
  2. Bls repair

    Bls repair Senior Member

    Joined:
    Jan 21, 2017
    Messages:
    1,615
    Occupation:
    Equipment operator,mechanic
    Location:
    S E Pa
    Any excess smoke coming out exhaust , try changing fuel filter ,draining water separator.
     
  3. tagaman

    tagaman Member

    Joined:
    Dec 1, 2016
    Messages:
    12
    Location:
    southafrica
    Bbbhhh
     
  4. tagaman

    tagaman Member

    Joined:
    Dec 1, 2016
    Messages:
    12
    Location:
    southafrica

    Nope there's no ex cess black smoke and service was done
    Recently
     
  5. DEMLONE70

    DEMLONE70 Senior Member

    Joined:
    Sep 30, 2012
    Messages:
    258
    Location:
    Belgium
    Whats sn ?
    Any fault code ?
     
  6. tagaman

    tagaman Member

    Joined:
    Dec 1, 2016
    Messages:
    12
    Location:
    southafrica
    Unfortunately I can't tell because the cluster isn't working
     
  7. DEMLONE70

    DEMLONE70 Senior Member

    Joined:
    Sep 30, 2012
    Messages:
    258
    Location:
    Belgium
    First thing to solve then
     
  8. koecon

    koecon Well-Known Member

    Joined:
    Apr 13, 2013
    Messages:
    63
    Occupation:
    Heavy equipment consultant
    Location:
    Highland Ca.
    Have you tried the backup switches behind the arm rest to see if that makes a difference? Is the green LED on at the front of the machine controller next to the right front of the seat support?
     
  9. Marco olivetto

    Marco olivetto New Member

    Joined:
    Oct 18, 2014
    Messages:
    2
    Location:
    Bazil
    Check diesel hoses. If there is no black smoke it can probably be fuel shortage.
     
  10. Marco olivetto

    Marco olivetto New Member

    Joined:
    Oct 18, 2014
    Messages:
    2
    Location:
    Bazil
    Check the intake pressure sensor. The wrong dialing This sensor may cause problems.
     
  11. tagaman

    tagaman Member

    Joined:
    Dec 1, 2016
    Messages:
    12
    Location:
    southafrica
    Good morning

    On this machine of mine the engine runs perfectly if not underror load but drags soon after incorporating hydraulicso.
     
  12. Nige

    Nige Senior Member

    Joined:
    Jun 22, 2011
    Messages:
    19,309
    Location:
    G..G..G..Granville...........!!
    I would say you are looking at a control issue in the hydraulic system that is not allowing the pump to de-stroke when hydraulic load is applied. That's what will drag the engine speed down.
     
  13. tagaman

    tagaman Member

    Joined:
    Dec 1, 2016
    Messages:
    12
    Location:
    southafrica
    Good morning Nigeria

    So what can I basically look at that makes the pump to destroke considering that the cluster is not working and I am financially not stable. Help me to just bypass something and make the machine to dig

    Regards
     
  14. Delmer

    Delmer Senior Member

    Joined:
    Jan 4, 2013
    Messages:
    7,249
    Location:
    WI
    I'm no cat expert, but even a newer machine should have some visible smoke when it's being lugged down, right? If no smoke, then a turbo boost pressure test will give you some easy indication of engine power.

    I like the new hipster nickname, "White Nigeria", the senior cat expert.
     
  15. tagaman

    tagaman Member

    Joined:
    Dec 1, 2016
    Messages:
    12
    Location:
    southafrica
    Is there any way of bypassing the hydraulic loom
     
  16. Nige

    Nige Senior Member

    Joined:
    Jun 22, 2011
    Messages:
    19,309
    Location:
    G..G..G..Granville...........!!
    If what I suspect is the problem is actually confirmed and you were to bypass something to prevent pump overloading lugging the engine down the machine would become so slow that although it would dig it would not produce anything because the hydraulics would have been slowed down to snail-speed. Unfortunately there are no short cuts here ......

    As Delmer pointed out, if the hydraulics not being correctly unloaded was causing the engine RPM to lug down the presence of black smoke should accompany it. Does this happen..?

    If you are "financially not stable" as you put it, then IMHO you really shouldn't be running a machine of the size of a 345. (other opinions may on this may be available)
     
  17. tagaman

    tagaman Member

    Joined:
    Dec 1, 2016
    Messages:
    12
    Location:
    southafrica
    Just to get this machine to dig
     
  18. Nige

    Nige Senior Member

    Joined:
    Jun 22, 2011
    Messages:
    19,309
    Location:
    G..G..G..Granville...........!!
    Is it black smoking from the exhaust when the RPM lugs down - yes or no..?
     
  19. tagaman

    tagaman Member

    Joined:
    Dec 1, 2016
    Messages:
    12
    Location:
    southafrica
    Yes just a little bit
     
  20. tagaman

    tagaman Member

    Joined:
    Dec 1, 2016
    Messages:
    12
    Location:
    southafrica