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wacker neuson 9503 no hydraulics

Discussion in 'Excavators' started by Newbury1289, Aug 11, 2022.

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  1. Newbury1289

    Newbury1289 Member

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    i have a 2013 Wacker Neuson 9503 rubber tire excavator, I had a problem with the hydraulic pump that runs the travel drive that mounts to the gearbox, I still had all hydraulic functions for everything else, i had the pump sent out and rebuilt the shop said the pump was very worn due to age, i put the pump back in and everything was working great but now i lost all functions of my hydraulics and have a starting issue, i am guessing a safety tripped the only way i can get it to start is to jump the starter soloed, I have checked fuses and relays, I also keep blowing the 10 amp fuse for parking brake as soon as I put machine in travel mode, any advice would be greatly appreciated.
     
  2. uffex

    uffex Senior Member

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    Good day
    Do you have any schematics for the machine?
    Kind regards
    Uffex
     
  3. Newbury1289

    Newbury1289 Member

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    I do have some hydraulic schematics but a lot of the electrical pages are missing half the page when they were printed
     
  4. uffex

    uffex Senior Member

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    Good day Newbury
    You describe a pump to the travel gearbox, do you mean the motor?
    If you can post what information you have to a Google Drive and post me the link, I will try to help out.

    Kind regards
    Uffex
     
  5. Newbury1289

    Newbury1289 Member

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    Yes it is the motor that mounts to the gear box that is for the travel drive. unfortunately all my manuals are paper copies but I will see what I can do, thank you
     
  6. uffex

    uffex Senior Member

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    Good day Newbury
    I will try my end, but it will help a lot if you can post those online.
    Kind regards
    Uffex
     
  7. uffex

    uffex Senior Member

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    Good day
    If you can take a photo of the motor & label, we may be able to match it up.
     
  8. Newbury1289

    Newbury1289 Member

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    I will send them when I get back in the shop thank you.
     
  9. Newbury1289

    Newbury1289 Member

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    Machine serial# is
    #WNCE0603HDAL00230
     
  10. Newbury1289

    Newbury1289 Member

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  11. Newbury1289

    Newbury1289 Member

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    *WNCE0603HPAL00230* is the machine serial
     
  12. uffex

    uffex Senior Member

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    Could you take a photo of the transport motor, I guess it maybe a Rexwroth
     
  13. Newbury1289

    Newbury1289 Member

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  14. uffex

    uffex Senior Member

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    Good day
    I suggest you remove one of the main lines & plug the hose with a gauge > plug the open port of the motor, operate the travel, see if we have pressure. This way we can establish if the motor is good.
    Kind regards
    Uffex
     
  15. Newbury1289

    Newbury1289 Member

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    found a problem with the cab harness there is a short, also rocker switch for dig/travel mode needs to be replaced, estimated time for cab harness is February of 2023 and rocker switch isn't available until October
     
  16. uffex

    uffex Senior Member

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    Good day
    That is great news, those rocker switches are available from many outlets, you need to take the switch out and note the pin configuration.
    Kind regards
    Uffex
     
  17. Newbury1289

    Newbury1289 Member

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    thank you for the help I really appreciate it