Spicer TPCS (Tire Pressure Control System) Service Manual Manual de usuario

Spicer® TPCS(Tire Pressure Control System)Service ManualAXSM0010October 2007

10System OperationA vehicle equipped with the Tire Pressure ControlSystem will seem to operate the same as a vehiclewithout the Tire Pressure Control

11Figure 2 Tire Pressure Control System Simplified SchematicOperationSystem OperationAir Seal LifeWheelValveToTrailerWheelValveWheelValveSpeed Se

12Figure 3 Wiring Harness DiagramNote: The wiring harness connects all electricalcomponents of the Tire Pressure Control System.Figure 3 is a diagram

13Terminal, Connector and Wire ServiceThe Tire Pressure Control System electrical systemrequires good electrical signal paths. Proper installa-tion a

14Splicing WireFigure 5 shows the steps to splice two sections of wire.Remove insulation cleanly taking care not to damagewire strands. Slide automot

15Speed Sensor Repair/ReplacementThe first step in replacing the speed sensor is todetermine the type. Figure 6 illustrates two types ofsensors. Aft

16Wiring ConnectionsConfiguration ConnectorThis connector initializes the Electronic Control Unit forthe current vehicle configuration (see Figure 9).

17Electrical ServiceReplacement ProceduresElectronic Control Unit Replacement1. Turn off the vehicle’s ignition and engine.2. Locate the Electronic Co

18Pneumatic ServiceWet Tank RequirementsA minimum wet tank volume is required for properoperation of the Tire Pressure Control System. Verifythat the

19Figure 8 Overview of Tractor Air Line RoutingPneumatic ServiceService GuidelinesChassis PlumbingSteer Wheel EndPlumbingDrive Wheel EndPlumbingWet

2General InformationThe description and specifications contained in thisservice publication are current at the time of printing.Dana reserves the righ

20Figure 9 Hose/Configuration RequirementsPneumatic ServiceNote: Wire braid hose diameter is inside diameter (I.D.). Nylon hose diameter is outside

21!Pneumatic ServicePneumatic Control UnitReplacement4. Note the Pneumatic air line location, mark ifnecessary.5. Remove the pneumatic connections fro

22Pneumatic Service!11. Install the Pneumatic Control Unit. Secure unitwith 1/4" x 20 mounting studs or bolts.Note: For additional air line pro

23Pneumatic Service1.3/8" NPT run Tee2.3/8"male NPT to 1/4" female NPTreducing adapter3. Pressure switch4.1/2" NPT run Tee (varies

241. Turn off the vehicle’s ignition and engine.Warning: Drain off all air from the wet tank beforeremoving any fittings!2. Refer to Figure 12 and re

25Figure 12 Steer Axle Air Line RoutingPneumatic ServiceSteer AxlePneumatic Repalcement1234565785PCU112345581D O TD O TD O T D O TD O TD O T5KEYPlasti

262. Refer to Figure 14 and remove the damaged orbroken components.Note: Note the following important points whileperforming this procedure:• The fro

27Pneumatic ServiceDrive AxlePneumatic ReplacementFigure 14 Drive Axle Air Line Routing6.5/16" wire braid hose with a 3/8" female 37° flareh

28Figure 15 Overview of Trailer Air Line RoutingThe following procedure discusses replacing thepneumatics for a trailer axle. You may not require all

29Note the following important points while performingthis procedure:• If trailer is equipped with a moveable tandem,(is adjustable in length), be sur

3Section 1: IntroductionTire Pressure Control System ...

30Figure 16 Trailer Axle PneumaticsPneumatic Service1. 3/8" male NPT to 3/8" male 37° flared adapter2. 1/4" male NPT to 3/8" mal

31Wheel Valve Air Filter ChangeFigure 17 shows the location of the air filter in eachwheel valve. This filter must be replaced wheneverthe tire or wh

32PreparationWarning: Never work under a vehicle supportedonly by a jack.To ensure your safety, perform the following steps beforedoing any service t

33Figure 19 Non-Drive (Steer) Axle Wheel Air Line Routing – Rotary Joint Configuration1. Tire hose assembly2. Wheel valve3. Adapter–male section4. Ada

34Hub ServiceThe hub and wheel seal can now be serviced in thesame manner as standard non-Tire Pressure ControlSystem assemblies. Refer to steer axle

35Inlet Tube InstallationSee Figure 20A.1. Apply lubricant to two small O-rings and place ingrooves on inlet tube assembly.2. Install inlet tube assem

36Internal Air Line Installation(Trailer Axles Only)Figure 21 shows axle end air line routing.Warning: Wear safety glasses.Complete the axle end reas

37!Caution: Failure to align banjo fitting at 30° mayresult in the hose rubbing against hubcap.4. Align notch in rotary valve with locating tab insid

38Non-Drive Axle Wheel EndServiceNote: Work quickly to minimize air loss during steps 5-10.5. Remove valve stem core from inner tire and installhose

39Non-Drive Axle Wheel EndServiceWheel Changing ProcedureWheel Changing ProcedureNote: Perform the following procedure with the wheelsoff the ground

4Section 6: Drive Axle Wheel End ServicePreparation ...

40PreparationTo ensure your safety, perform the following stepsbefore doing any service that requires removal of tiresand wheels.1. Block wheels prop

41Sleeve RemovalPerform the following steps using the Drive Axle SleevePuller. See Figure 27.1. Disconnect inlet tube assembly. 2. Install Drive Axl

42Drive Axle Wheel EndServiceDriveAxle SleeveBrake SpiderSpindleABFigure 28 Spindle Sleeve Depth MeasurementSleeve Installation1. Measure the depth o

43Drive Axle Wheel EndServiceSleeve InstallationFigure 31 Spindle O-Ring and Backup RingFigure 30 Spindle PreparationFigure 32 Preparation for Sleeve

44Drive Axle Wheel EndServiceInstall Drive Axle Inlet Tube1. Install pipe end of 3/8" male NPT to 3/8" flareless tubeend, 45° elbow.2. Posit

45Caution: Use care when applying thin coat ofAeroshell. Make sure not to plug air passageswith lubricant.2. While insuring that the spindle end wil

464. Before installation, lubricate the outer bearing withthe same lubricant used in the axle sump.Note: Lubricate only with clean axle lubricant of

47Air Seal, Wheel Hub andOil Seal InstallationDrive Axle Wheel EndService• Plug hub air port with a 3/8" pipe plug.• Open the valve from the air

48Drive Axle Wheel EndServiceWheel and Wheel ValveFigure 37 is a detailed view of the external air lineconnections on a rear drive wheel.Note: Perfor

49Wheel andWheel ValveDrive Axle Wheel EndServiceFigure 38 Drive Axle Wheel Air Line Routing5. Wheel valve mounting bracket6.3/8" male 37° flare

5List of IllustrationsFigure 1 Tire Pressure Control System Component Identification ...

50IntroductionThe chart below contains typical Tire Pressure ControlSystem settings. These settings may be changed byusing the Operator Control Panel

51IntroductionThe dash-mounted Operator Control Panel is the soleinterface for display of operator information and for keyentry of system instructions

52Fault CodesWhen an exclamation point (!) follows the digital display, the display is reporting a system fault. The following chartprovides a brief

53mphkphbar psiTire Pressure Controlbar psiDigital DisplayThe display shows either tire pressure or fault codes forthe channel indicated by the illumi

54Configuration IndicatorsThe tractor/trailer outline show(s) whether the vehicleis configured with a two channel (tractor or straighttruck) or three

55Tire Pressure Control System ProgrammingSpicer’s Tire Pressure Control System features onlocation programming through the Operator ControlPanel. Pr

56Figure 40 Entering the Programming SequenceOperator Controlsmphkphbar psiTire Pressure Controlmphkphbar psiTire Pressure Controlbar psiL/USELECT+fla

57 Programming Quick Reference ChartStep Setting12345678910111213141516171819202122Metric

58Figure 42 Fastener TorquesFastener TorquesFastenerOil Fill Plug – (drive hub)Rotary JointBanjo BoltCap Screws (hubcap)Wheel Valve Retainin

59Appendix A

6General Information

All applications must be approved by the Application Engineering Department. Specifications and/or design are subject to change without notice or obli

7Tire Pressure Control SystemSpicer’s Tire Pressure Control System featuresdashboard control of tire air pressure through:• Simple push button operati

8Component DescriptionThe following describes how each component of theTire Pressure Control System functions. Figure 1shows the approximate location

9Air LinesThe Tire Pressure Control System uses a dedicatedpneumatic system plumbed from the vehicle’s existingwet tank.WiringAll electric cables and