Peterbilt 337 2017 - REAR AXLE AND SUSPENSION; General Maintenance

REARAXLEANDSUSPENSION
REARAXLEAND
SUSPENSION
GeneralMaintenance
WARNING!
Donotworkonthevehiclewithout
theparkingbrakesetandwheels
blockedsecurely.Ifthevehicleis
notsecuredtopreventuncontrolled
vehiclemovement,itcouldrolland
mayresultindeath,personalinjury,
equipmentorpropertydamage.
Yourvehicle'ssuspension,by
design,requiresaminimalamountof
maintenance.However,suspensions
inover-the-roadoperationsrequire
periodicinspectiontoensuretrouble-
freeperformance.
WARNING!
Donotoperatethevehicleifthe
U-boltsarenotproperlytightened.
LooseU-boltswillcausetheaxle
tonotbeproperlysecuredtothe
suspension,whichcouldcauseloss
ofvehiclecontrolandanaccident.
LooseU-boltscanalsocauseun-
eventirewearandpooralignment.
Failuretocomplymayresultin
death,personalinjury,equipmentor
propertydamage.
WARNING!
Failuretomaintainthespecied
torquevaluesortoreplaceworn
partscancausecomponentsystem
failure,possiblyresultinginanac-
cident.Improperlytightened(loose)
suspensionU-boltscanleadtoun-
safevehicleconditions,including:
hardsteering,axlemisalignment,
springbreakageorabnormaltire
wear.SeeFrontSpringSuspension
U-boltsonpage5-117forproper
torquespecications.Failureto
complymayresultindeath,per-
sonalinjury,equipmentorproperty
damage.
CAUTION
Donotspraythesuspensionwith
chemicalproductsormineraloil;it
cancausedamagetothebushings.
5-132Y53-6060-1C1(03/17)
5