Peterbilt 348 2017 - Page 195

AXLE
MaximizingDriveAxleTraction
Adjustthepressureregulatorcontrol
knobtoalowerpressureuntildesired
tractionisobtained.Byreducingair
pressureatpusherortagaxle,load
willbetransferredtodriveaxles.Do
notoverloaddriveaxles.
CouplingToALoadedTrailer
Inateairspringsoftheauxiliaryaxles
tothedesiredpressureaftercoupling
toaloadedtrailerwhilestillmaintaining
propertractionofthedriveaxles.
UnloadingOperation
Alwaysdeateairspringsofthe
auxiliaryaxlesbeforeattemptingto
unloadvehicle.Thisallowsmaximum
tractionofthedriveaxlestocontrolthe
vehicle.
(03/17)Y53-6060-1C14-55
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