operators_manual

SUSPENSION
UnladenVehicle
Propri-
etary
Rear
RideHeight,
inches(mm)
AirSus-
pension
Single
Drive
Tandem
Drive
LowLow
AirLeaf
N/A6.75(171)
FLEXAir
N/A8.75(222)
Followthisproceduretotemporarily
setrideheight.
WARNING!
Ensurethatavehicleisparkedand
thewheelschockedbeforebegin-
ningthisprocedure.
CAUTION
Completingthisprocedurewillen-
ableyoutosafelyreachthenearest
authorizedPeterbiltrepairfacilityto
haverideheightandpinionanglere-
setusingtheproperequipmentand
technique.Dothisassoonaspossi-
bletoavoidpotentialdrivelinedam-
age.
NOTE
Suitablewheelchocksareatamin-
imuman18-inch(46cm)long4x4.
1.Ensurethatthetractorisfullyladen
duringthisprocedure.Donotuse
theseproceduresonavehiclethatis
notladen(bobtail).
2.Ensuretheairsupplyanddelivery
plumbingoftheheightcontrolvalve
isconsistentwiththefollowing
illustrations.
TypicalHeightControlValve(Location
onVehicle)
TypicalHeightControlValve(Rear
ViewLookingForward)
1.AlignmentDowel
4-40Y53-6076-1B1(03/17)
4