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Air scales with 2 leveling valves question

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by dziubak, Aug 10, 2023.

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  1. Aug 10, 2023 #1
    dziubak

    dziubak Bobtail Member

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    I am thinking of putting in one of those teltek air scale gauges in my truck. I have an 8 bag kenworth suspension with two leveling valves. What is the correct way to install the guage to make sure it’s accurate? I’m sure I need readings from both axles, how do I feed the pressure from each axle into one guage without crossing the different air pressures from the two valves? I’ve called teltek and they couldn’t give me a straight answer. It sounded like they were guessing
     
    dziubak, Aug 10, 2023
    dziubak, Aug 10, 2023
    #1
    OLDSKOOLERnWV and blairandgretchen Thank this.
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  3. Aug 10, 2023 #2
    blairandgretchen

    blairandgretchen Road Train Member

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    Good question!
     
    blairandgretchen, Aug 10, 2023
    blairandgretchen, Aug 10, 2023
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    Oxbow Thanks this.
  4. Aug 10, 2023 #3
    FLHT

    FLHT Road Train Member

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    I am thinking you may need two gauges. One for each axel ?
    Add the total from the two ??
    Got me wondering ?
     
    FLHT, Aug 10, 2023
    FLHT, Aug 10, 2023
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    W923, Oxbow, blairandgretchen and 1 other person Thank this.
  5. Aug 10, 2023 #4
    JB7

    JB7 Medium Load Member

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    What about this?
     

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    JB7, Aug 10, 2023
    JB7, Aug 10, 2023
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  7. Aug 10, 2023 #5
    dziubak

    dziubak Bobtail Member

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    I think if I connect the two output sides of the leveling valves, it would defeat the purpose of the two valves and they would both be trying to adjust each other, causing problems
     
    dziubak, Aug 10, 2023
    dziubak, Aug 10, 2023
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    W923 Thanks this.
  8. Aug 10, 2023 #6
    dziubak

    dziubak Bobtail Member

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    I was quoted a set that would connect to both axles and use one guage but it was a lot more than I really want to spend on this
     
    dziubak, Aug 10, 2023
    dziubak, Aug 10, 2023
    #6
  9. Aug 10, 2023 #7
    OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    You have 2 leveling valves? 1 on each side of truck?

    I have 2 Teltek gauges in the dash with the red digital readout. But I only have 1 leveling valve on KW 8 bag air ride….
     
    OLDSKOOLERnWV, Aug 10, 2023
    OLDSKOOLERnWV, Aug 10, 2023
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    Oxbow Thanks this.
  10. Aug 10, 2023 #8
    OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    Come to think of it, there is a instruction sheet of some kind in the glove box, I’ll have to get it out later tomorrow and look at it when I get back…
     
    OLDSKOOLERnWV, Aug 10, 2023
    OLDSKOOLERnWV, Aug 10, 2023
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    Oxbow Thanks this.
  11. Aug 10, 2023 #9
    AModelCat

    AModelCat Road Train Member

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    The old man only ever ran dual levelling valves on his trucks for better stability - levelling valve on each side. He only ever had 1 gauge so it was likely only plumbed in to one side.

    Honestly, just tee into one side and call it a day. Unless you're running a straight truck or a body job with one side significantly heavier than the other the numbers are going to be close enough.
     
    Last edited: Aug 10, 2023
    AModelCat, Aug 10, 2023
    AModelCat, Aug 10, 2023
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    W923, kylefitzy, OLDSKOOLERnWV and 4 others Thank this.
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