You usually see this with trucks that pull oversized loads. You will notice that they may have one of their axles lifted off the ground so the tires wont be used. I always wondered are they lift up by air or do you have to crank the axle up? I assume it's the same for trailers too?
I finally remembered to ask this question about trucks or trailers that lift their axles
Discussion in 'Experienced Truckers' Advice' started by TruckRunner, Apr 16, 2018.
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Air. Some lift axles are tied to the controls of the suspension, other lift axles have a manual setup that you put up or down,
TruckRunner Thanks this. -
There were some old school tags that were spring up and air down.
kylefitzy and TruckRunner Thank this. -
I've been seeing them more often on new dry vans. I guess it saves wear on one set of tires and makes sharp turns easier?
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We have lift control in cab for lifting forward axle on 4 legged,,,lifts fore and aft on 5 legged. You want to be able to lift forward axle when road gets slick or lighten pressure.
TruckRunner Thanks this. -
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Lepton1, KB3MMX, TruckRunner and 1 other person Thank this.
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They aren't needed when you're lightly loaded.
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They can save on the outrageous tolls all too many states like to impose on the transportation industry as well.
KB3MMX, TruckRunner, rank and 5 others Thank this. -
Our new trucks and tankers that have tag axles work on a weight sensor. No load, axle raises by its self. Lowers when weight is added.
LoneCowboy, Jazz1, TruckRunner and 3 others Thank this.
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