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Volvo Air Suspension Parameter

Discussion in 'Volvo Forum' started by Bakhtiyar, May 7, 2020.

  1. May 7, 2020 #1
    Bakhtiyar

    Bakhtiyar Bobtail Member

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    Feb 8, 2020
    0
    Hello Guys

    anyone does know how can I increase lifting bags for rear axles of volvo FH12 2005 by TechTool ?

    Thanks
     
    Bakhtiyar, May 7, 2020
    Bakhtiyar, May 7, 2020
    #1
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  3. May 7, 2020 #2
    Snailexpress

    Snailexpress Road Train Member

    2,675
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    Apr 28, 2014
    Rocky
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    If your truck has electronic control suspension. You can change height sensor calibration but it will change driveline and axle angle. Why you need to change ride height?
     
    Snailexpress, May 7, 2020
    Snailexpress, May 7, 2020
    #2
    Bakhtiyar Thanks this.
  4. May 7, 2020 #3
    Bakhtiyar

    Bakhtiyar Bobtail Member

    4
    0
    Feb 8, 2020
    0
    Thank you for your reply

    Really driver want to change it because when I return the rear air bag to zero level it will come down more for this reason he want to hieght small millimeters
     
    Bakhtiyar, May 7, 2020
    Bakhtiyar, May 7, 2020
    #3
  5. May 7, 2020 #4
    Snailexpress

    Snailexpress Road Train Member

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    Apr 28, 2014
    Rocky
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    I don't know Volvo FH but you was warned about drive line and pinion angles. First will be destroyed radial springs in clutch, then pinion seals and bearings. Drive tires, fuel mileage, driver fatigue. Drive line vibration literally will destroy whole truck.
     
    Snailexpress, May 7, 2020
    Snailexpress, May 7, 2020
    #4
    Bakhtiyar and KB3MMX Thank this.
  7. May 7, 2020 #5
    Bakhtiyar

    Bakhtiyar Bobtail Member

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    Feb 8, 2020
    0
    Thanks for your advice...
     
    Bakhtiyar, May 7, 2020
    Bakhtiyar, May 7, 2020
    #5
  8. May 8, 2020 #6
    KB3MMX

    KB3MMX Road Train Member

    3,075
    2,596
    Dec 29, 2014
    Orrstown, PA
    0
    In other words... Leave it the #### alone lololol
     
    KB3MMX, May 8, 2020
    KB3MMX, May 8, 2020
    #6
    Socal Xpress, Roberts450, Bakhtiyar and 1 other person Thank this.
  9. May 8, 2020 #7
    Snailexpress

    Snailexpress Road Train Member

    2,675
    6,069
    Apr 28, 2014
    Rocky
    0
    Is this particular truck single drive axle or tandem? And leveling valve is one for both axles or there two of them on each axle?
     
    Snailexpress, May 8, 2020
    Snailexpress, May 8, 2020
    #7
    Bakhtiyar Thanks this.
  10. May 8, 2020 #8
    Bakhtiyar

    Bakhtiyar Bobtail Member

    4
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    Feb 8, 2020
    0
    It is single drive axle with one leveling valve
     
    Bakhtiyar, May 8, 2020
    Bakhtiyar, May 8, 2020
    #8
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