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Skytrak 8042 Hydraulic problem. (De-clutch)

Discussion in 'Forklifts/Telehandlers' started by Skytrak Jake, Feb 3, 2020.

  1. Skytrak Jake

    Skytrak Jake Member

    Joined:
    Feb 3, 2020
    Messages:
    9
    Location:
    Columbus, Tx
    Hello All,

    Please help. I have an older Skytrak 8042. I want to say its a 1996. Everything runs great but i have this intermediate problem around 50% of the time i drive it. When driving in first gear it will go out of gear then it will pop back in gear.(de-clutching i think). In second gear the problem is worst as in it will not go back in gear as much. When im having this problem if i operate the boom up and down while im driving it operates fine. Stop operating the boom the forklift de-clutches. The other 50% of the time it works perfectly. Thanks in advance for your help.
     
  2. skata

    skata Senior Member

    Joined:
    May 10, 2007
    Messages:
    598
    Location:
    midwest
    Not sure what transmission those have , but have you checked the fluid level?
     
  3. Skytrak Jake

    Skytrak Jake Member

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    9
    Location:
    Columbus, Tx
    I have to prior SN 9909 transmission. I have checked then changed the transmission fluid and filter. With the same intermediate problem still there.
     
  4. tractormech

    tractormech Well-Known Member

    Joined:
    Feb 19, 2015
    Messages:
    72
    Location:
    florida
    What's your machine serial number? We need that to troubleshoot the machine. I'll be glad to try to help. Some transmissions are checked idling and it could be starving for oil. If electric shift a relay or pressure switch could be bad.
     
  5. Skytrak Jake

    Skytrak Jake Member

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    Location:
    Columbus, Tx
    I get the serial number this weekend. Im not around the machine right now.
     
  6. tractormech

    tractormech Well-Known Member

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    Location:
    florida
  7. tractormech

    tractormech Well-Known Member

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    Tell me this-does it have an electric shifter that you rotate the knob to change gears or is it two levers on the dash?
     
  8. Skytrak Jake

    Skytrak Jake Member

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    Location:
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    2 levers on the dash its an older model
     
  9. tractormech

    tractormech Well-Known Member

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    72
    Location:
    florida
    There is a screen on the suction pipe on some of those that can get clogged up. I'll need to know the transmission to be certain though. Also-did you check the oil level idling? On a Clark tranny it makes a big difference. Low oil level or a stopped up screen will cause the problem you have. Does it have a switch for the parking brake or is it manual?
     
  10. Skytrak Jake

    Skytrak Jake Member

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    Location:
    Columbus, Tx
    Oil level while idling is good. I did not check the screen. Ill check and clean the screen this weekend. It has an electrical switch for the parking break.
     
  11. Skytrak Jake

    Skytrak Jake Member

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    Location:
    Columbus, Tx
    I ordered the screen and gasket right after my message yesterday. Not sure if it will come in on time to do it this weekend but i will get the SN for you this weekend.
     
  12. tractormech

    tractormech Well-Known Member

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    Location:
    florida
    Does it have a transmission disconnect switch? By that I mean a toggle switch that when you engage it and step on the brake the transmission kicks out of gear-let up on the brake and it goes back in gear. Also a picture of the tranny and one of the ID plate on the tranny would be helpful,
     
  13. Skytrak Jake

    Skytrak Jake Member

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    Location:
    Columbus, Tx
    The Serial Number is 5375

    Sorry i just received your message. Ill have to get the tranny info this coming weekend. The screen should come in today so i will install it this weekend.
     
  14. farmoperater

    farmoperater New Member

    Joined:
    Feb 12, 2020
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    Location:
    38610
    We have an older 8042, it is doing the same thing with the exemption that it run fine until I turn the wheels deep, let the boom down, retract boom, or tilt boom forward. Moving straight, raising boom, extending boom, or tilting back, everything runs fine. This is a manual machine with toggle switch park break, and 2 shift levers in the dash. Thanks for any help
     
  15. Skytrak Jake

    Skytrak Jake Member

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    Location:
    Columbus, Tx
    ok we have the same machine with close and maybe the same problem. Mine also starts acting up with the wheels turned fully. Ill keep you posted if the screen fixes it.
     
  16. Skytrak Jake

    Skytrak Jake Member

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    Location:
    Columbus, Tx
    Ok I checked the screen and it looked new. I installed the new one just because i had it but the same problem is still present.