columbia driver's manual.pdf

8/11/2019 Columbia Driver's Manual.pdf

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COLUMBIA

Drivers Manual

-405-2

24-01034-000


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IntroductionThis manual provides information needed to operateand understand the vehicle and its components.More detailed information is contained in the Owners Warranty Information for North America booklet, andin the vehicles workshop and maintenance manuals.

Custom-built Freightliner vehicles are equipped withvarious chassis and cab components. Not all of theinformation contained in this manual applies to everyvehicle. For details about components in your ve-hicle, refer to the chassis specication pages in-cluded in all new vehicles and to the vehicle speci-cation decal, located inside the vehicle.

For your reference, keep this manual in the vehicleat all times.

IMPORTANT: Descriptions and specications in thismanual were in effect at the time of printing. Freight-liner Trucks reserves the right to discontinue modelsand to change specications or design at any timewithout notice and without incurring obligation. De-scriptions and specications contained in this publi-cation provide no warranty, expressed or implied,and are subject to revisions and editions without no-tice.

Environmental Concerns andRecommendationsWhenever you see instructions in this manual to dis-card materials, you should rst attempt to reclaimand recycle them. To preserve our environment, fol-low appropriate environmental rules and regulationswhen disposing of materials.

Event Data RecorderThis vehicle is equipped with one or more devicesthat record specic vehicle data. The type andamount of data recorded varies depending on howthe vehicle is equipped (such as the brand of engine,if an air bag is installed, or if the vehicle features acollision avoidance system, etc.).

Customer Assistance CenterHaving trouble nding service? Call the CustomerAssistance Center at 1-800-385-4357 or 1-800-FTL-HELP. Call night or day, weekdays or weekends, fordealer referral, vehicle information, breakdown coor-

dination, or Fleetpack assistance. Our people areknowledgeable, professional, and committed to fol-lowing through to help you keep your truck moving.

Reporting Safety DefectsIf you believe that your vehicle has a defect whichcould cause a crash or could cause injury ordeath, you should immediately inform the NationalHighway Traffic Safety Administration (NHTSA) inaddition to notifying Daimler Trucks North AmericaLLC.

If the NHTSA receives similar complaints, it mayopen an investigation, and if it nds that a safety

defect exists in a group of vehicles, it may order arecall and remedy campaign. However, NHTSAcannot become involved in individual problemsbetween you, your dealer, or Daimler Trucks NorthAmerica LLC.

To contact NHTSA, you may call the VehicleSafety Hotline toll-free a t 1-888-327-4236 ( TTY:1-800-424-9153); go to www.safercar.gov ; orwrite to: Administrator, NHTSA, 1200 New JerseyAvenue, SE, Washington, DC 20590. You can alsoobtain other information about motor vehicle safetyfrom www.safercar.gov .

Canadian customers who wish to report a safety-related defect to Transport Canada, Defect Investi-gations and Recalls, may telephone the toll-freehotline 1-800-333-0510, or contact TransportCanada by mail at: Transport Canada, ASFAD,Place de Ville Tower C, 330 Sparks Street,Ottawa, Ontario, Canada K1A 0N5.

For additional road safety inf ormation, pleas e visitthe Road Safety website at: www.tc.gc.ca/roadsafety .

Foreword

STI-405-2 (12/12)A24-01034-000

Printed in U.S.A.
http://www.safercar.gov/http://www.safercar.gov/http://www.safercar.gov/http://www.safercar.gov/http://www.tc.gc.ca/roadsafetyhttp://www.tc.gc.ca/roadsafetyhttp://www.tc.gc.ca/roadsafetyhttp://www.tc.gc.ca/roadsafetyhttp://www.tc.gc.ca/roadsafetyhttp://www.tc.gc.ca/roadsafetyhttp://www.safercar.gov/http://www.safercar.gov/


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20012012 Daimler Trucks North America LLC. All rights reserved. Daimler Trucks North America LLC is a Daimlercompany.

No part of this publication, in whole or part, may be translated, reproduced, stored in a retrieval system, or transmittedin any form by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written per-mission of Daimler Trucks North America LLC. For additional information, please contact Daimler Trucks NorthAmerica LLC, Service Systems and Documentation, P.O. Box 3849, Portland OR 972083849 U.S.A. or refer towww.Daimler-TrucksNorthAmerica.com and www.FreightlinerTrucks.com .

Foreword
http://www.daimler-trucksnorthamerica.com/http://www.freightlinertrucks.com/http://www.freightlinertrucks.com/http://www.freightlinertrucks.com/http://www.daimler-trucksnorthamerica.com/


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ContentsChapter Page

Introduction, Environmental Concerns and Recommendations,Event Data Recorder, Customer Assistance Center, ReportingSafety Defects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Foreword

1 Vehicle Identication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.12 Instruments and Controls Identication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.13 Vehicle Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1

4 Heater and Air Conditioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.15 Seats and Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.16 Steering and Brake Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.17 Engines and Clutches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.18 Transmissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.19 Rear Axles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1

10 Fifth Wheels and Trailer Couplings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.111 Pretrip and Post-Trip Inspections and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.112 Cab Appearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.113 In an Emergency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.114 Headlight Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.1

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I.1


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Vehicle Specication DecalThe vehicle specication decal lists the vehiclemodel, identication number, and major componentmodels. It also recaps the major assemblies and in-stallations shown on the chassis specication sheet.One copy of the specication decal is attached to theinside of the sliding storage/waste drawer; anothercopy is inside the rear cover of the Owners Warranty Information for North Am erica bo oklet. An illustrationof the decal is shown in Fig. 1.1 .

NOTE: Labels shown in this chapter are ex-amples only. Actual specications may vary fromvehicle to vehicle.

Federal Motor Vehicle SafetyStandard (FMVSS) LabelsNOTE: Due to the variety of FMVSS certicationrequirements, not all of the labels shown willapply to your vehicle.

Tractors with or without fth wheels purchased in theU.S. are certied by means of a certication label(Fig. 1.2 ) and the tire and rim labels. These labelsare attac hed to the left rear door post, as shown inFig. 1.3 .

If purchased for service in the U.S., trucks built with-out a cargo body have a certication label ( Fig. 1.4 )attached to the left rear door post. See Fig. 1.3 . Inaddition, after completion of the vehicle, a certica-tion label similar to that shown in Fig. 1.2 must beattached by the nal-stage manufacturer. This labelwill be located on the left rear door post and certies

that the vehicle conforms to all applicable FMVSSregulations in effect on the date of completion.

f08002111/21/96

USE VEHICLE ID NO.WHEN ORDERING PARTS

WHEELBASEENGINE NO.TRANS NO.FRT AXLE NO.REAR AXLE NO.REAR AXLE NO.RATIO

FOR COMPLETE PAINT INFORMATIONSEE VEHICLE SPECIFICATION SHEET

MANUFACTURED BY

MODELVEHICLE ID NO.

DATE OF MFRENGINE MODELTRANS MODEL MAINFRONT AXLE MODELREAR AXLE MODEL

PAINT MFRPAINT NO.

PART NO. 2400273010

COMPONENT INFORMATION

IMRON PAINTCABCAB COLOR A: WHITE (4775)CAB COLOR B: BROWN (3295)CAB COLOR C: BROWN (29607)CAB COLOR D: DARK BROWN (7444)

Fig. 1.1, Vehicle Specication Decal (U.S.-built vehicleshown)

11/21/96 f080053

1 2 3

1. Date of Manufacture: by month and year2. Gross Vehicle Weight Rating: developed by taking

the sum of all the vehicles gross axle ratings3. Gross Axle Weight Ratings: developed by

considering each component in an axle system -including suspension, axle, wheels, and tires - andusing the lowest component capacity as the valuefor the system

Fig. 1.2, Certication Label, U.S.

1

2

11/01/95 f601086

1. Tire and Rim Labels 2. Certication Label

Fig. 1.3, Labels Location

09/28/98 f080023

Fig. 1.4, Incomplete Vehicle Certication Label, U.S.

Vehicle Identication

1.1


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Canadian Motor Vehicle SafetyStandard (CMVSS) LabelsIn Canada, tractors with fth wheels are certied bymeans of a "Statement of Comp liance" la bel and theCanadian National Safety Mark ( Fig. 1.5 ), which areattached to the left rear door post. In addition, tireand rim labels ( Fig. 1.6 ) are also attached to the leftrear door post.

If purchased for service in Canada, trucks built with-out a cargo body and tractors built without a fthwheel are certi ed by a "Statement of Compliance"label, similar to Fig. 1.2 . This label must be attached

by the nal-stage manufacturer after completion ofthe vehicle. The label is located on the left rear doorpost, and certies that the vehicle conforms to allapplicable CMVSS regulations in effect on the dateof completion.

Tire and Rim LabelsTire and rim labels certify suitable tire and rim combi-nations that can be installed on the vehicle, for thegiven gross axle weight rating. Tires and rims in-stalled on the vehicle at the time of manufacture mayhave a higher load capacity than that certied by thetire and rim label. If the tires and rims currently onthe vehicle have a lower load capacity than thatshown on the tire and rim label, then the tires andrims determine the load limitations on each of theaxles.

See Fig. 1.6 for U.S. and Canadian tire and rim la-bels.

EPA Emission ControlVehicle Noise Emission Control LabelA vehicle noise emission control label ( Fig. 1.7 ) isattached either to the left side of the dashboard or tothe top-right surface of the frontwall between thedash and the windshield.

IMPORTANT: Certain Freightliner incompletevehicles may be produced with incomplete noisecontrol hardware. Such vehicles will not have avehicle noise emission control information label.For such vehicles, it is the nal-stage manufac-turers responsibility to complete the vehicle inconformity to U.S. EPA regulations (40 CFR Part205) and label it for compliance.

EPA07 Exhaust EmissionsTo meet January 2007 emissions regulations, ve-hicles with engines manufactured after January 1,2007, are equipped with an emission aftertreatmentdevice. There is a warning label on the drivers sun-visor, explaining important new warning indicators inthe drivers message display, that pertain to the after-treatment system. See Fig. 1.8 .

f08002410/10/2006

Fig. 1.5, Canadian National Safety Mark

f080054

2400273040TIRESAND RIMSLISTEDARE NOT NECESSARILYTHOSEINSTALLEDON THEVEHICLE.

VEHICLEID NO.DATEOF MFRGVWR

FRONT AXLEFIRST INTERMEDIATEAXLESECONDINTERMEDIATEAXLETHIRDINTERMEDIATEAXLEREARAXLE

GAWR TIRES RIMS PSI COLD

1 2 3

10/31/95

1. Date of Manufacture: by month and year2. Gross Vehicle Weight Rating: developed by takingthe sum of all the vehicles gross axle ratings

3. Gross Axle Weight Ratings: developed byconsidering each component in an axle system including suspension, axle, wheels, and tires andusing the lowest component capacity as the valuefor the system

Fig. 1.6, Tire and Rim Label

10/06/98 f080026

2400273020

VEHICLE NOISE EMISSION CONTROL INFORMATION

FREIGHTLINER CORPORATIONTHIS VEHICLE CONFORMS TO U.S. EPA REGULATIONS FOR NOISE EMISSIONAPPLICABLE TO MEDIUM AND HEAVY TRUCKS.THE FOLLOWING ACTS OR THE CAUSING THEREOF BY ANY PERSON ARE PROHIBITED BYTHE NOISE CONTROL ACT OF 1972:A. THE REMOVAL OR RENDERING INOPERATIVE, OTHER THAN FOR PURPOSES OF MAINTENANCE, REPAIR, OR REPLACEMENT, OF ANY NOISE CONTROL DEVICE OR ELEMENT OF DESIGN (LISTED IN THE OWNERS MANUAL) INCORPORATED INTO THIS VEHICLE IN COMPLIANCE WITH THE NOISE CONTROL ACT.B. THE USE THIS VEHICLE AFTER SUCH DEVICE OR ELEMENT OF DESIGN HAS BEEN REMOVED OR RENDERED INOPERATIVE.

DATE OF MANUFACTURE 01/96

Fig. 1.7, Vehicle Noise Emission Control Label


1.2


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It is a violation of federal law to alter exhaust plumb-ing or aftertreatment in any way that would bring theengine out of compliance with certication require-ments. (Ref: 42 U.S.C. S7522(a) (3).) It is the own-ers responsibility to maintain the vehicle so that itconforms to EPA regulations.

f080147

EXHAUST AFTERTREATMENT SYSTEM INFORMATION

Switch.

Level 1 Level 3Level 2 Level 4Filter RegenerationRecommended

Filter is reaching

Bring vehicle tohighway speeds to

Filter RegenerationNecessary

Filter is nowreaching maximumcapacity .

To avoid enginederate bring vehicle

Parked RegenerationRequired EngineDerate

Filter has reachedmaximum capacity .

Vehicle must beparked and a Parked

Parked Regeneration Required Engine Shut Down

Filter has exceededmaximum capacity

Vehicle must be parked and aParked Regeneration or Service

(Solid) (Flashing) (Flashing)

CHECK CHECK

(Flashing)

INDICATORLAMP(S)

Indicator LampMessage(s)

Diesel ParticulateFilter Condition

Required Action

capacity . .

STOP

See Engine Operators Manual for complete Regeneration Instructions.

allow for an AutomaticRegeneration orperform a ParkedRegeneration.

to highway speedsto allow for anAutomaticRegeneration orperform a ParkedRegeneration assoon as possible.

Regeneration mustbe performed engine will beginderate.

Regeneration must be performed.Check engine operators manualfor details engine will shut down.

For a driver performed Parked Regeneration, vehicle must be equipped with a dash mounted Regeneration Switch.

06/29/2009

2401583000B

WARNING

HEST (High ExhaustSystem Temperature)

Exhaust Componentsand exhaust gas areat high temperature.When stationary, keep

away from people andflammable materialsor vapors.

A regeneration is inprogress.

Flashing

Solid

Fig. 1.8, Sunvisor Warning Label


1.3


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2Instruments and Controls

IdenticationInstrumentation Control Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1Warning and Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3Driver Message Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.17Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.21

Roll Stability Advisor and Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.28


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Instrumentation Control UnitsThe instrumentation control unit (ICU) provides thedriver with engine and vehicle information. It is com-prised of standard and optional gauges, an audiblewarning, a driver message center, and a lightbar con-taining warning and indicator lamps (also known astelltales). Warning and indicator lamps illuminate inred (danger), amber (caution), green (status advi-sory), or blue (high-beam headlights activated).

Columbia vehicle s are eq uipped with either an ICU3(Fig. 2.1 ), ICU4 (Fig. 2.2 ), or ICU4M (Fig. 2.3 ).

The following headings in this chapter provide addi-tional information and operating instructions for ICU

components: "Warning and Indicator Lights" "Driver Message Center"

"Instruments"

Ignition SequenceWhen the ignition is turned on, the ICU runs a self-check. Observing the ignition sequence is a goodway to ensure the ICU is functioning properly.

IMPORTANT: Do not crank the engine until theICU gauge sweep is complete.

NOTE: Air gauges do not complete a sweep oftheir dials during the ignition sequence.When the ignition is turned on, the following actionsshould occur:

electronic gauges complete a full sweep oftheir dials

9 f610837b

1 2 4 5

WATER

100

150 200

250

F

0 100

50

PSI

OIL

E F

1/2

FUEL

AIR0 150

50

PSI

100

AIR0 150

50

PSI

100

6

8

PUSHMODEHOLDRESET

7

OPT

ABS ABS

BRAKE

CHECK STOP

0

5

10

1520

30

RPM

25

X100

10

3

5

15

2535

4555

65

75

85

MPHkm/h

30

5070

90

130

110

10

10/26/2006

OPTOPTOPTOPTOPTOPTOPTOPT

TRANS

100

225

350

F

11

12

1. Engine Oil Pressure Gauge2. Dash Message Center3. Headlight High-Beam Indicator4. Dash Message Center5. Fuel Level Gauge

6. Primary Air Pressure Gauge7. Mode/Reset Switch8. Secondary Air Pressure Gauge9. Speedometer

10. Tachometer11. Tranismission Fluid Temperature

Gauge12. Coolant Temperature Gauge

Fig. 2.1, ICU3 Instrument Cluster

Instruments and Controls Identication

2.1


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some warning and indicator lamps illuminate,then are extinguished

audible alert sounds until sufficient air pressurebuilds up in the primary and secondary air sys-tems

software revision level of the ICU is displayedon the driver message center, followed by anyactive faults

IMPORTANT: If any red or amber warning orindicator lamps do not illuminate during the ICUself-check or do not extinguish after the self-

check completes, take the action outlined inTable 2.1 , or take the vehicle to an authorizedDaimler Trucks service facility as soon as pos-sible.

NOTE: If active faults are present, take the ve-hicle to an authorized Daimler Trucks servicefacility as soon as possible.

If the ICU receives active fault codes, it displaysthem one after the other until the parking brake isreleased or the ignition is turned off. Once the park-ing brake is completely released, the ICU displaysthe odometer. If there are no active faults, the ICUdisplays the odometer after the self-check completes.

When the self-check is complete on an ICU4M, thefasten seat belt screen displays if the engine is off. Ifthe engine is running, the idle hours screen displays.

Audible AlertsAn audible alert sounds during the ignition sequence

and whenever one of the following conditions exists: Engine oil pressure falls below the minimum

preset value. Coolant temperature rises above the maximum

preset value. Air pressure falls below approximately 70 psi

(483 kPa).

0 160

10060

PSI

AIR

S

0 160

10060

PSI

AIR

P

110 350

270190

F

TRANS

100 250

200150F

WATER

E F

1/2

FUEL100 300

200

AXLE

F

100 300

200

AXLE

F

8 16

12

VOLTS

0 80

40

TURBO

PSI

30 150

90

PYRO

100 300

200

OIL

0 100

40

OIL

PSI

10F

F

75

6555

5

15

2535 45

8510

30

5070 90

110

130

km/hMPH

RPMX 100

1520

25

10

5

0 30

04/01/2004 f610706

1 2

3 4

5 6

7 8

9 10

11 12

13 14

15 16

1. Engine Oil Pressure Gauge2. Engine Coolant Temperature

Gauge3. Engine Oil Temperature Gauge4. Battery Voltage Gauge5. Pyrometer

6. Turbo Boost Air Pressure Gauge7. Dash Message Center8. Mode/Reset Switch9. Tachometer10. Speedometer11. Primary Air Pressure Gauge

12. Secondary Air Pressure Gauge13. Fuel Level Gauge14. Axle Temperature Gauge15. Transmission Oil Temperature

Gauge16. Axle Temperature Gauge

Fig. 2.2, ICU4 Instrument Cluster


2.2


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Parking brake is set with the vehicle movingfaster than two miles per hour.

System voltage falls below 12

volts. Door is open or the headlights are on, with the

parking brake off.

Warning and Indicator LightsThe ICU lightbar has three or four rows of warningand indicator lights with icon symbols, depending onthe ICU. The positions of the lights may vary for thedifferent ICUs, bu t the tellta les are standard for allapplications. See Table 2.1 for a listing of standardand commonly used warning and indicator lamps.

Warning and indicator lamps illuminate in red (dan-ger), amber (caution), green (status advisory), orblue (high-beam headlights active).

IMPORTANT: Depending upon local jurisdic-tional emissions guidelines, vehicles may not beequipped with all of the lamps shown inTable 2.1 .

Engine Protection System

WARNINGWhen the red STOP engine lamp illuminates,most engines are programmed to shut down au-tomatically within 30 seconds. The driver mustimmediately move the vehicle to a safe locationat the side of the road to prevent causing a haz-ardous situation that could cause bodily injury,property damage, or severe damage to the en-gine.

See Fig. 2.4 for an explanation of the aftertreatmentsystem (ATS) warning indicators, and actions re-quired to avoid further engine protection steps.

0 160

10060

PSI

AIR

S

0 160

10060

PSI

AIR

P

110 350

270190

F

TRANS

100 250

200150F

WATER

E F

1/2

FUEL

100 300

200

AXLE

F

100 300

200

AXLE

F

8 16

12

VOLTS

0 80

40

TURBO

PSI

30 150

90

PYRO

100 300

200

OIL

0 100

40

OIL

PSI

10F

F

75

6555

5

15

2535 45

8510

30

5070 90

110

130

km/hMPH

RPMX 100

1520

25

10

5

0 30

09/29/2010 f610706b

1 2

3 4

5 6

9 10

11 12

13 14

15 16

8 87

FASTEN SEATBELTS0000432 MILES

ABS

BRAKE!

ABSSTOPCHECK

OPT OPT OPT OPTOPT OPT OPT OPT

OPTIDLE

1. Engine Oil Pressure Gauge2. Engine Coolant Temperature

Gauge3. Engine Oil Temperature Gauge4. Battery Voltage Gauge5. Turbo Boost Air Pressure Gauge6. Pyrometer

7. Dash Message Center8. Warning and Indicator Lights9. Tachometer10. Speedometer11. Primary Air Pressure Gauge12. Secondary Air Pressure Gauge13. Fuel Level Gauge

14. Transmission Fluid TemperatureGauge

15. Forward Drive Axle TemperatureGauge

16. Rearmost Drive Axle TemperatureGauge

Fig. 2.3, ICU4M Instrument Cluster


2.3


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The STOP engine lamp illuminates when the engineprotection system is activated in one of two ways. Onsome engines, the engine protection system deratesthe engine, allowing it to run at lower rpm and slowervehicle speed. Drive the vehicle to a safe location orto a service facility.

IMPORTANT: Safely bring the vehicle to a stopon the side of the road and shut down the en-

gine as soon as the red light is seen. If the en-

gine shuts down while the vehicle is in a haz-ardous location, turn the key to the OFF positionfor a few seconds, then restart the engine andmove the vehicle to a safer location.

Common Warning and Indicator LampsLamp Description Color

STOP STOP Engine *

Indicates a serious fault that requires engine shutdownimmediately. The engine protection system reduces themaximum engine torque and speed, and, if the conditiondoes not improve, shuts down the engine within 30 to 60seconds.

Safely bring the vehicle to a stop on the side of the roadand shut down the engine as soon as the red light is seen.

IMPORTANT: If the engine shuts down while the vehicleis in a hazardous location, turn the key to the OFFposition for a few seconds, then restart the engine andmove the vehicle to a safer location.

Red

High Coolant Temperature Indicates the coolant temperature is above the maximumallowable temperature.

Low Air Pressure Indicates air pressure in the primary or secondary reservoiris below 70 psi (483 kPa).

Low Engine Oil Pressure Indicates the engine oil pressure is below the minimumallowable pressure.

BRAKEParking Brake

Indicates the parking brake is engaged. An audible alertactivates when the vehicle is moving over 2 mph (3 km/h)with the parking brake set.

Low Battery Voltage Indicates that battery voltage is 11.9 volts or less.

Unfastened Seat Belt

Activates with an audible alert when the system detects thatthe parking brake is off and the driver seat belt is notfastened on some vehicles. On other vehicles, this lampilluminates for 15 seconds when the ignition is rst turnedon.

CHECK CHECK Engine *

Indicates an engine condition (low oil pressure, low coolantlevel, high coolant temperature, high DPF soot level, oruncontrolled DPF regeneration) that requires correction.Correct the condition as soon as possible. If the conditionworsens, the STOP engine lamp illuminates.

Amber


2.4


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Common Warning and Indicator Lamps

Lamp Description Color

High Exhaust SystemTemperature (HEST) *

Slow (10-second) ashing indicates a regeneration (regen)is in progress.

IMPORTANT: When the HEST lamp is illuminated, donot park the vehicle near ammable material.

Solid illumination indicates high exhaust temperatures at theoutlet of the tail pipe when speed is below 5 mph (8 km/h).

Amber

Diesel Particulate Filter(DPF) Status

Solid illumination indicates a regen is required. Change to amore challenging duty cycle (such as highway driving) toraise exhaust temperatures for at least twenty minutes, orperform a parked regen.

Blinking indicates that a parked regen is requiredimmediately. An engine derate and shutdown occurs.

Malfunction IndicatorLamp (MIL)

Indicates an emissions-related fault. See the engineoperation manual for details.

Vehicle ABS

Momentary illumination indicates the vehicle ABS isengaged.

Solid illumination indicates a problem with the vehicle ABS.Repair the ABS immediately to ensure full brakingcapability.

Trailer ABS

Momentary illumination indicates the trailer ABS is engaged.

Solid illumination indicates a problem with the trailer ABS.Repair the ABS immediately to ensure full brakingcapability.

NOCHARGE No Charge

Indicates the alternator is not properly powering theelectrical system.

Water in Fuel Indicates the fuel may contain water. Drain any watercollected in the fuel/water separators.

Fuel Filter Restriction Indicates the fuel lter is clogged and requires service.

Check Transmission Indicates an undesirable transmission condition.

Transmission Overheat Indicates high transmission temperature.

WHEELSPIN Wheel Spin

Flashing indicates the ATC system is active, or the ATCbutton has been pressed to allow wheel slip.

Solid illumination indicates a problem with the ATC system.Repair the ATC system immediately to ensure full brakingcapability.


2.5


15/180

Common Warning and Indicator Lamps

Lamp Description Color

Engine Brake Indicates the engine brake is enabled.

GreenLeft-Turn Signal Flashing indicates the outside left-turn signal lights areactivated.

Right-Turn Signal Flashing indicates the outside right-turn signal lights areactivated.

High-Beam Headlights Indicates the high-beam headlights are on. Blue

* See Fig. 2.4 for an explanation of the aftertreatment system (ATS) warning indicators, and actions required to avoid further engine protection steps.

Table 2.1, Common Warning and Indicator Lamps

On other engines, the engine protection systemshuts down the engine. It rst derates the engine,then shuts it down completely 30 to 60 seconds afterthe indicator illuminates (depending on the criticalfault type) if the condition does not improve. Bringthe vehicle to a stop on the side of the road beforethe engine shuts down.

Some vehicles may have a shutdown-overrideswitch, which may be used to momentari ly overridethe shutdown sequence. See Chapter 7 for detailedinformation regarding the shutdown process.

f080156

EXHAUST AFTERTREATMENT SYSTEM INFORMATION

Switch.

Level 1 Level 3Level 2 Level 4Filter RegenerationRecommended.

Filter is reaching

Bring vehicle tohighway speeds to

FilterRegeneration

Filter is nowreaching maximumcapacity .

To avoid enginederate, bring vehicle

Parked RegenerationRequired EngineDerate

Filter has reachedmaximum capacity .

Vehicle must beparked, and a Parked

Service Regeneration Required.Engine Derate To Idle Only.

Filter has exceeded maximumcapacity.

Vehicle must be parked, and aService Regeneration must be

(Solid) (Flashing) (Flashing)

CHECKINDICATORLAMP(S)

Indicator LampMessage(s)

Diesel ParticulateFilter Condition

Required Action

capacity .

STOP

allow for anAutomaticRegeneration orperform a Parked

to highway speedsto allow for anAutomaticRegeneration, orperform a ParkedRegeneration assoon as possible.

Regeneration mustbe performed.Engine will beginderate.

performed. Check engineoperators manual for details.Engine will shut down.

For a driver performed Parked Regeneration, vehicle must be equipped with a dash mounted Regeneration Switch.

02/20/2009

WARNING

HEST (High ExhaustSystem Temperature)

Exhaust componentsand exhaust gas are athigh temperature. Whenstationary, keep awayfrom people andflammable materials orvapors.

A regeneration is inprogress.

Flashing

Solid

Regeneration.

Necessary

Fig. 2.4, ATS Warning Lamps


2.6
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IMPORTANT: Do not attempt to restart the en-

gine while the vehicle is moving. Bring the ve-hicle to a safe stop, then restart the engine.To restart the engine, turn the ignition switch to OFFfor a few seconds, then turn the ignition switch to ONand let the gauge sweep complete before starting theengine. The engine will run for a short period andshut down again if the condition does not improve.

Driver Message CenterThe dash message centers for the following instru-ment clusters are described below:

ICU3 ICU4 ICU4M

ICU3A mode/reset button, located on the right side of theICU instrument cluster, is used to control the drivermessage center. See Fig. 2.1 . Tap the mode/resetbutton to advance one screen; press and hold thebutton to select a menu choice or reset the display.When the display resets, an audible chirp sounds.

Only four screens are accessible when the parkingbrake is off (mobile screens). All screens are acces-sible when the parking brake is on (stationaryscreens).

Mobile ScreensThe following screens are available when the parkingbrake is off (when the vehicle is mobile) and no ac-tive fault codes are found. Tap the mode/reset buttonto scroll through the mobile screens.

i. Odometer

ii. Trip distance

iii. Trip hours

iv. Back to odometer

Stationary ScreensThe following screens are available when the parkingbrake is on (when the vehicle is stationary) and noactive fault codes are found. Tap the mode/reset but-ton to sc roll through the stationary screens. SeeFig. 2.5 .

i. Odometer

ii. Trip distanceiii. Trip hours

iv. Select units

v. Diagnostics

vi. Clear screen (on vehicles with less than 255miles on the odometer)

vii. Engine miles

viii. Engine hours

ix. Engine oil level

x. Setup

xi. Back to odometer

Trip DistanceWhen the odometer reading is displayed, tap themode/reset button once for trip distance. Press andhold the mode/reset button to reset trip miles to zero.

Trip HoursWhen trip distance is displayed, tap the mode/resetbutton once for trip hours. Press and hold the mode/ reset button to reset trip hours to zero.

Diagnostic InformationWhen the DIAG screen is displayed, press and holdthe mode/reset button to access the various diagnos-tic screens.

Trained technicians use the diagnostic screens toretrieve fault codes and other diagnostic informationpertaining to the vehicle. If active fault codes displayduring start-up or at any other time, make a note ofthe fault code and take the vehicle to an authorizedFreightliner service facility as soon as possible.

If fault codes are displayed, press and hold themode/reset button to view the next fault code untilreaching the DIAG screen.

If service intervals are enabled and service distanceor time has been exceeded, the text SERVICEHOUR/MI (KM) will display at start-up to indicate ve-hicle service is required.

Engine InformationWhen the DIAG screen is displayed, tap the mode/ reset button once to access the engine miles/hours


2.7


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screen. When the engine miles/hours screen is dis-played, press and hold the mode/reset button to ac-cess the engines screen sub-menu.

Setup InformationThe setup screen allows the driver to manage ICUparameters. When the engine hours/miles screen isdisplayed, tap the mode/reset button to access thesetup screen. The setup screen submenu allows thedriver to enable and change service intervals.

For each parameter, press and hold the mode/resetbutton to navigate to the parameter change screen.In each change screen, tap the mode/reset button totoggle between options.

When the setup screen is displayed again, tap themode/reset button to view the odometer.

ICU4FunctionsThe mode/reset button, located on the right side ofthe light bar, controls the driver message center. SeeFig. 2.2 . Press the mode/reset button to advanceone screen; hold the button down to select a menuchoice or reset the display. When the display isreset, an audible chirp sounds.

Direct Access Screens

When the parking brake is not set, pressing themode/reset button will scroll through the direct ac-cess screens.

i. Trip distance

ii. Trip hours

iii. Outside temperature

iv. Back to odometer

03/26/2004 f040636a

Push

Push

123456.7TRIP MI 12.3 VOLTS

Push

123456.7MI 12.3 VOLTS

Push

123456.7TRIP HOURS

12.3 VOLTS

SELECtMI

dIAGMI HOURS

n

Push

Push

123456.7MI

EC

Push

CLEAr

Push

123456.7HOURS

EC

EnG oIL *Lo

SEtUP **MI **HOURS**no

Default OdometerDispay Screen

To Reset Trip MilesHold

To Reset Trip HoursHold

To Toggle between UnitsHold

Dispay DiagnosticsHold

Dispay Oil LevelHold

Dispay Service IntervalCycle Screens

Hold

To Dispay Total Engine HoursEC = Engine Control

To Dispay Total Engine MilesEC = Engine Control

Clear DefaultsHold

Push Push

n = Number of Active Fault CodesMI = CYCLE Miles EnabledHOURS = Cycle Hours Enabled

*Lo = Oil Level LowHI = Oil Level HighBlank = Oil Level OK = No Message

MIKM

**MI = CYCLE Miles Active Mode**HOURS = CYCLE Hours Active Mode**no = Service CYCLE Inactive

Note: The engine oil level screen displays for Mercedes-Benz engines only (if equipped and enabled).

Fig. 2.5, ICU3 Stationary Screens


2.8


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Stationary Access Screens

When the parking brake is set, pressing the mode/ reset button w ill scroll through the stationary accessscreens. See Fig. 2.6 .

i. Odometer

ii. Trip distance

iii. Trip hours

iv. Outside temperature

v. Diagnostic screen

vi. Engine miles/hours/oil level

vii. Setup screen

viii. Back to odometer

Trip Information

Trip information allows you to view trip mileage andtime.

When the odometer reading is displayed, press themode/reset button once for trip distance. Press themode/reset button a second time for trip hours (en-gine hours).

Press and hold the mode/reset button to reset tripmiles or hours to zero.

Ambient Air TemperatureWhen the ambient air temperature drops below 35F(1.7C), the ICU displays a caution text at 1-second

intervals for ve seconds and a chime sounds if the

f040756

Push

W i t h p a r k

b r a k e o f

f

Go to the Diagnosticand Engine DisplayScreens figure.

Hold

If "SERVICE" is displayed Service Cycle screens are enabled and either "MI " or "HOURS" is also displayed.

On some vehicles "OIL LVL" appears in the top row of the display, if equipped and enabled.

Default OdometerDisplay Screen

To Reset Trip Miles

To Reset Trip Hours

Hold

Hold

Hold

Push

Push

Push

Push

Push

Hold For setup screens.

Go to the Diagnosticand Engine DisplayScreens figure.

With park brake on

Push

02/06/2007

Fig. 2.6, ICU4 Stationary Access Screens


2.9


19/180

ambient temperature alarm is enabled. The drivercan acknowledge the message by pressing themode/reset button. The chime will not sound againunless the temperature cycles above 37F (4C) andback below 35F (1.7C).

When the parking brake is set, the ambient air tem-perature display can be changed from F to C bychanging the MI or KM selection in the SETUPmenus. The warning message can be disabled orenabled in the SETUP menus.

Diagnostic ScreensThe diagnostic screens are used by trained techni-cians to retrieve fault codes and other diagnostic in-

formation pertaining to the vehicle. Active faults arecurrent problems that require attention. If active faultcodes display during start-up or at any other time,make a note of the fault code and text message,then call an authorized Freightliner service facility forassistance.

During vehicle start-up, with the parking brake set,the ICU4 will display any active fault codes for threeseconds each until the parking brake is released. Ifservice cycle screens are enabled and service dis-tance or time has been exceeded, the text SERVICEHOUR/MI (KM) will be displayed to inform the driverthat the service interval has been exceeded and ve-hicle service is required. See Fig. 2.7 for a diagramof the diagnostic and engine display screens.

To access the diagnostic screens, press and hold themode/reset button when the DIAG screen isdisplayed.

If the word SERVICE appears on the diagnostic mes-sage display screen, service cycle screens are en-abled. Either service miles or hours can be enabled,but not both. Hold the mode/reset button to displaymiles or hours remaining until the next scheduledservice. If MI (KM) appears on the DIAG screen, ser-vice miles are enabled; if HOURS appears on thescreen, service hours are enabled. If service miles orhours have been exceeded, the number ashes toindicate service is overdue.

Engine ScreensThe engine screen displays total engine miles orhours. Press and hold the mode/reset button to dis-play total engine miles. Press and hold it a secondtime to display total engine hours.

To access the engine screens, press and hold themode/reset button when the engine miles/hoursscreen is displayed.

Setup ScreensThe setup screens are used to manage ICU4 param-eters. See Fig. 2.8 .

To access the setup screens, press and hold themode/reset button when the SETUP screen is dis-played.

For each parameter, press and hold the mode/resetbutton to navigate to the parameter change screen.In each change screen, use the mode/reset button totoggle between options.

The last screen in the setup menu, RESET EE , is forresetting certain parameters to the original settings.Hold the mode/reset button to reset the antilock brak-ing system (ABS), SAMS roll call, automated trans-mission display, transmission heartbeat, sensor faultcodes, and engine oil level screens. Press the mode/ reset button to sequence back to the odometer.

ICU4MFunctionsA keypad located on the auxiliary dash panel controlsthe ICU4M. See Fig. 2.9 .

Main features of the ICU4M include: Gauges that sweep 270 degrees and have

pointers lit by an LED. Service intervals that are programmable via the

keypad. An audible warning and alert message to warn

the driver if the door is opened without rst set-ting the parking brake.

A ashing alert message that appears on thedriver message center in low engine oil pres-sure or high coolant temperature conditions.

With the parking brake off, only the odometer andalert screens will display. Park the vehicle and setthe parking brake to access additional screens.

The dash message center displays alert screenswhen certain conditions occur. They are warnings,cautions, or other messages that require the drivers


2.10


20/180

attention, but not all of them are critical to the opera-tion of the vehicle. Warning messages always displayat full brightness.

More important messages take priority over less im-portant messages. The order of priority is:

1. parking brake set (with the vehicle moving)

2. parking brake off (with the door open)

3. low oil pressure or high coolant temperature

4. hard brake warnings (if equipped with roll stabil-ity advisor)

5. low battery voltage

6. turn signal on

7. service warnings

8. no datalink activity

Alert ScreensNOTE: If there is more than one alert messageto display, tap any key to access the next mes-sage, and so on, until all the messages havebeen viewed.

f040802a

From Temperature Screen

Press & Hold

Tap

Press & Hold

Tap

Press & Hold

Tap

n = Number ofActive Fault Codes

dlAG

n

*FAULT

01

*If fault goes inactive,display "noFault 1"

*FAULT

nn

*If fault goes inactive,display "noFault n"

To EngineMiles/Hour

Press & Hold

AbS 11 ECU 0

Tap Tap

Press & Hold123456

Tap Tap

Press & HoldFAIL 03 FAIL 00

Tap Tap

SPN SPN

123456

08/13/2012

Fig. 2.7, ICU4 Diagnostic and Engine Display Screens


2.11


21/180

Parking Brake OnThis warning message and an audible warning comeon whenever the parking brake is applied and thevehicle is moving faster than 2 mph (3 km/h). Thescreen and audible warning go away only when the

parking brake is released, or speed is reduced below2 mph.

Selection?

To toggleMIHOURSno

NOTE:* Flash screen text**Display active mode

Select NOto disableService Intervals

Press & Hold to reset allService Interval counters

To toggleMI

To toggle

Tap

To toggleON

HRSMI

no

Tap

TapTap

Tap Tap Tap

Tap

Tap

TapTap

Press & Hold

Press & Hold

Press & Hold

Press & Hold

Press & Hold Press & Hold Press & Hold

Press & HoldPress & Hold

Press & Hold

SET UP SELECT*MI

SET UP

WARNT

*on

LCD LMP

*on

**MI **HOURS**no

RESET**MI **HOURS

*no

SELECT*MI *HOURS

*noSERVICE SERVICE SERVICE

*12345MISERVICE

*12345HOURSSERVICE

RESET

EE

DONE

f04075501/30/2012

OFF

KM

ON OFF

To Odometer

From Engine

Miles/Hours Screen

Fig. 2.8, ICU4 Setup Screens


2.12


22/180

Low Oil PressureThis warning message and an audible warning comeon whenever the oil pressure falls below the mini-mum oil pressure, whether the vehicle is idling or in

motion. Tap any key to dismiss the message.If the fault is still active 30 seconds after the mes-sage is dismissed, the warning message will comeon again.

High Coolant TempThis message and an audible warning come onwhenever the engine coolant temperature exceedsthe maximum allowable temperature.

If the fault is still active 30 seconds after the mes-sage is dismissed, the warning message will comeon again.

Low VoltageOn some vehicles, this optional message and an au-dible warning come on whenever the ICU detects alow voltage condition.

Turn Signal OnThis warning message and audible warning come onwhenever the turn signal remains on for four minutesor ve miles of travel.

To dismiss this message, either turn off the turn sig-nal or tap any key.

Service WarningsService warning screens display during the ignitionsequence and indicate that a service interval hasbeen reached or exceeded and maintenance is re-quired. The messages may indicate the number ofmiles (KM) or hours until the next required service or,once passed, the number of miles (KM) or hours agothat maintenance should have been performed.

Automated Transmission Display

The ICU4M can display current gear information forvehicles with an automated transmission. The lastthree digits at the far right on the lower line of thedriver display screen are reserved for this informa-tion.

If there is a request to shift, an up or down arrow isalso displayed, depending on the shift direction.

On vehicles with conventional manual or automatictransmissions, the gear and shift direction are notdisplayed. For more information about sp ecicmodels of automated transmissions, see Chapter 8 .

Mobile ScreensThe following screens are available when the parkingbrake is off (when the vehicle is mobile).

i. Fasten seat belt (rpm100)

iii. Odometer

iv. Trip distance/hours

v. Trip advisory

vi. Leg distance/hours

vii. Leg advisory

viii. Outside air temperature

ix. Fuel used/average MPG (KM/L)

Stationary ScreensNOTE: Metric unit screens are similar. AMT=Current gear information for automated manualtransmissions.

The following screens are available when the parkingbrake is on (when the vehicle is stationary).

i. Odometer

ii. Trip information including trip miles/hours, idlehours, average speed, leg miles/hours

iii. Fuel information including fuel used, fueleconomy, idle/PTO fuel usage

iv. Engine information including engine miles/hours,engine/PTO gallons, oil level

v. Diagnostic information

08/08/96 f601009

Dedicated Keys General Keys Control Keys

To reset a value, press the SET/RESET button twice.

Fig. 2.9, ICU4M Keypad


2.13
http://-/?-http://-/?-http://-/?-http://-/?-


23/180

vi. Service information including mileage or time tonext service

vii. Setup information

viii. Vehicle information including Datalink status, ICUserial number, software version

ix. Fasten seat belt warning

Trip InformationWhen idle hours are displayed, tap the any key toaccess th e main trip information screen. SeeFig. 2.10 .

Tap the arrow keys on the 10-key keypad to advancethrough the screens. Press and hold the SET/RESETkey to reset any of the screens.

Fuel InformationFuel information allows you to view total fuel usagesince the last reset, fuel mileage, an d fuel con sumedwhile idling or running the PTO. See Fig. 2.11 . Tapthe arrow keys on the 10-key keypad to advancethrough the screens. Press and hold the SET/RESETkey to reset any of the screens.

Engine Idling

IDLE HOURS 1234:5612.3GAL123456.7MI AMT

FASTEN SEATBELTS

123456.7 MILES AMT

Press Right Arrow Key and Set the Parking Brake

TRIP MILES 123456.7TRIP HR 1234:56 AMT

IDLE HOURS 1234:56AVG MPH 12.3 AMT

LEG MILES 123456.7LEG HR 1234:56 AMT

R R R

TRIPINFORMATION AMT

12/01/2004 f040699

(100 RPM or more)

Go to Fuel Information Screens

Fig. 2.10, ICU4M Trip Information Screens

IDLE GALLONS 12.3PTO GAL 12345.6 AMT

FUEL USED 12345.6AVG MPG 12.34 AMT

R R

FUELINFORMATION AMT

f040700Go to Engine Information Screens

12/17/2004

Return toIdle Hours From Trip

InformationScreen

Fig. 2.11, ICU4M Fuel Information Screens


2.14


24/180

Engine Information

The engine information screens allow you to viewengine m ileage and hours, and total fuel consump-tion. See Fig. 2.12 . Tap the arrow keys on the 10-key keypad to advance through the screens. Pressand hold the SET/RESET key to reset any of thescreens.

Diagnostic InformationIf active fault codes are d isplayed o n the diagnosticinformation screensSee Fig. 2.13 , make a note ofthe fault code and text message, then take the ve-hicle to an authorized Freightliner service facility assoon as possible.

Service InformationService information allows you to view the next re-curring service interval, expressed in either miles orhours. See Fig. 2.14 . Service intervals can also bedeactivated, so they do not display at all.

For programming service intervals, see Setup Infor-mation , below.

NOTE: If the vehicle has gone past the serviceinterval, the miles (km)/hours remainingscreen is replaced by the service was duescreen, followed by the number of miles(km)/ hours since the service was due.

Setup Information

See Fig. 2.15 and Fig. 2.16 for diagrams of thesetup information screens.

Setup information allows you to program various fea-tures of the ICU4M environment, including:

A. Service intervals (OFF/MILES/HOURS);

B. Target MPG;

C. LCD Lamp (ON/OFF);

D. Driver message center brightness;

E. Language (English/French/Spanish);

F. Units of measurement (English/Metric);

G. Driver select (ON/OFF)

H. Reset parameters to original settings.

Vehicle Information ScreensThe vehicle information screens display hardwareand software information, including the Freightlinerpart number and switch ID of the ICU. See Fig. 2.17 .

ENG GALLONS 123456.7PTO GAL 12345.6 AMT

ENG MILES 123456.7ENG HOUR1234:78AMT

ENG OIL LEVELLO 1 QTS AMT

ENGINEINFORMATION AMT

12/01/2004

ENG OIL LEVELLO 1 QTS AMT

If Oil Level OK ENG OIL LEVELOK AMT

If Oil Level High ENG OIL LEVELHI 1 QTS AMT

If Oil Level Low

f040701

Go to Diagnostic Information Screens

Return toIdle Hours From Fuel

InformationScreen

Fig. 2.12, ICU4M Engine Information Screens


2.15


25/180

MID(text) PID/SID(text)FMI(text) MID#sPID#FMI#AMT

ACTIVE FAULTS12 or NONE AMT

12 HIST DASH FAULTSLAST CLR 123456.7AMT

LAST OCCUR 123456.71234 TIMES AMT

FIRST OCCUR 123456.71234 TIMES AMT



Fault # 1 Fault # n

Hist Fault # 1


Hist Fault # n

LAST OCCUR 123456.71234 TIMES AMT

FIRST OCCUR 123456.71234 TIMES AMT

2 PUSH RESET TOCLEAR DASH FAULTS AMT

R

ALL FAULTSCLEARED AMT

DIAGNOSTICINFORMATION AMT

Go to Service Information Screens f040702

Return toIdle Hours From Engine

InformationScreen

12/17/2004

Fig. 2.13, ICU4M Diagnostic Information Screens

INTERVAL IS SET TOXXXXX MILES AMT

R

OR

Distance prior to reaching theset Service Interval

Distance traveled beyond theset Service Interval

R

SERVICE WAS DUE12345 MILES AGO AMT

Time accumulated beyond theset Service Interval

Time prior to reaching theset Service Interval

INTERVAL IS SET TOXXXX HOURS AMT

SERVICEINFORMATION AMT

SERVICEINFORMATION AMT

12345 MILESTO NEXT SERVICE AMT

1234 HOURSTO NEXT SERVICE AMT

SERVICE WAS DUE1234 HOURS AGO AMT

R

ORR

f040703Go to Setup Information Screens

Go to Setup Information Screens

Return toIdle Hours From Diagnostic

InformationScreen

12/17/2004

NOTE: Service information screens only appear if the service interval is set to MILES or HOURS in Setup Information.

Fig. 2.14, ICU4M Service Information Screens


2.16


26/180

InstrumentsStandard instruments are present on every vehicle.Optional instruments, typically located on the auxil-

iary dash panel or right-hand control panel, are notfound on every vehicle. Instruments are listed here inalphabetical order to make the information easier tond.

Air Intake Restriction GaugeThe air intake restriction gauge indicates the vacuumon the engine side of the air cleaner. See Fig. 2.18 .On standard installations, it is mounted on the aircleaner. As an option for easier viewing, an air intakerestriction indicator can be mounted on the auxiliarydash panel.

NOTE: Rain or snow can wet the lter elementand cause a temporary high reading.Air intake restriction vacuum is measured in inchesof water (inH 2 O). For vehicles equipped with agraduated indicator or a restriction gauge on the

dash, check the gauge with the engine off. If the yel-low signal stays locked in the red zone once the en-gine is sh ut down, o r is at or above the valuesshown in Table 2.2 , the air cleaner element requiresreplacement.

Vehicles may be equipped with a go/no-go r estrictionindicator without graduations (see Fig. 2.19 ) insteadof a graduated indicator.

SETUPINFORMATION AMT

PUSH SET KEY TOCHANGE SERVICE AMT

OR

S INTERVALXXXXX MILES

AMT

If Service Interval is set to MILES

SERVICE INTERVALOFF/ MILES /HOURS AMTS

PUSH SET KEY TOCHANGE SERVICE MI AMT

PUSH SET KEY TOCHANGE SERVICE HR AMT

S SERVICE INTERVALOFF/ MILES / HOURS AMT

If Service Interval is set to HOURS

INTERVAL XXXX HOURS AMTS

To more Setup Information

Go to Vehicle Information Screens

f040704

Return toIdle Hours From Service

InformationScreen

12/17/2004

Fig. 2.15, ICU4M Setup Information Screens (for service intervals)

PUSH SET KEY TOCHANGE TARGET MPG AMT

TARGET MPG:AMT

SLCD LAMP

AMT

S DISPLAY BRIGHTNESSAMT

S

S

PUSH SET KEY TOCHANGE LCD LAMP AMT

PUSH SET KEY TOCHANGE BRIGHTNESS AMT

PUSH SET KEY TOCHANGE LANGUAGE AMT

PUSH SET KEY TOCHANGE UNITS AMT

PUSH SET KEY TOCHANGE PARAMETERS AMT S

RESET PARAMETERS AMT

UNITS / METRIC AMT

LANGUAGE:FRENCH/SPANISH AMT

f040705Go to Vehicle Information Screens

Go to Setup Information Screens

12/17/2004

ENGLISH

ENGLISH

12.3 S

YES

Fig. 2.16, Other Setup Information


2.17


27/180

Air Intake Maximum Restriction Values: (inH 2 O)

Engine Make Pre-EPA07Engines EPA07 Engines

Caterpillar 25 Cummins 25 25Detroit 20 22Mercedes-Benz 22 22

Table 2.2, Air Intake Maximum Restriction Values

If air restriction exceeds the maximum allowablevalue, operate the vehicle for one more day, makingsure not to run the engine over rated rpm. Refer to

the engine operation manual for more information onrated rpm for your engine.

If air restriction exceeds the maximum value again,replace the air cleaner element. For instructions,refer to Group 09 of the Century Class Trucks Work- shop Manual .

Application Air Pressure GaugeAn application air pressure gauge registers the air

pressure being used to apply the brakes, and shouldbe used for reference only. The gauge will not regis-ter air pressure until the foot brake pedal is de-pressed or the trailer hand brake is applied.

VEHICLEINFORMATION AMT

DATALINK ACTIVEAMT

DATA LINK STATUSUSAGE 12% ERR1%AMT

DASH# XXXXXXXXXXXSW# P1.2.3 AMT

f040706

Return to Trip Information Screens

01/11/2005

From SetupInformation

Return toIdle Hours

Screen

Fig. 2.17, ICU4M Vehicle Information Screens

10/10/2001 f610568

Fig. 2.18, Air Intake Restriction Indicator

04/08/2005 f090431

Fig. 2.19, Manual-Reset Air Restriction Indicator, Go/No-Go


2.18


28/180

Coolant Temperature Gauge

NOTICEA sudden increase in coolant temperature mayindicate engine or cooling system failure. Bringthe vehicle to a safe stop and investigate thecause to prevent further damage. Do not operatethe engine until the cause has been determinedand corrected.

During normal engine operation, the coolant tem-perature gauge should read between 175 and 195F(79 and 91C). If the temperature remains below160F (71C), inspect the cooling system to deter-

mine the cause.If the tempera ture excee ds the maximum tempera-ture shown in Table 2.3 , inspect the cooling systemto determine the cause. See the Century Class Trucks Workshop Manual for troubleshooting andrepair procedures.

Maximum Coolant TemperatureEngine Make Temperature: F (C)

Caterpillar 215 (101)Cummins 225 (107)Detroit 215 (101)Mercedes-Benz 221 (105)

Table 2.3, Maximum Coolant Temperature

If coolant temperatur e rises ab ove the maximumtemperature listed in Table 2.3 on EPA07 engines,the CHECK engine lamp will illuminate. If the condi-tion does not improve, the STOP engine lamp willalso illuminate and an audible warning will sound.The engine will then derate or shut down, dependingon the type of engine protection system installed.

Drive Axle Oil Temperature Gauges

NOTICEA sudden increase in oil temperature that is notcaused by a load increase may indicate mechani-cal failure. Bring the vehicle to a safe stop andinvestigate the cause to prevent further damage.Do not operate the vehicle until the cause hasbeen determined and corrected.

During normal operation, forward-rear and rear-rearaxle oil temperature gauges should read between:

160 to 220F (71 to 104C) for Meritor driveaxles;

180 to 200F (82 to 93C) for Dana Spicer drive axles.

Under heavy loads, such as when climbing steepgrades, temperatures that exceed the normal oil tem-perature range for a short period are not unusual. Ifthe temperature returns to normal when the load de-creases, there is no problem.

Engine Oil Pressure Gauge

NOTICEA sudden decrease or absence of oil pressuremay indicate mechanical failure. Bring the vehicleto a safe stop and investigate the cause to pre-vent further damage. Do not operate the engineuntil the cause has been determined and cor-rected.

The engine oil pressure gauge displays the currentengine oil pressure. If engine oil pressure falls belowthe minimum levels shown in Table 2.4 , the CHECKengine lamp will illuminate. If the condition does notimprove, the STOP engine lamp will also illuminateand an audible warning will sound. The engine willthen derate or shut down, depending on the type ofengine protection system installed.

Minimum Oil Pressure *

Engine Model At Idle Speed:psi (kPa)At Rated RPM:

psi (kPa)Caterpillar 1020 (69138) 3045 (207310)Cummins 15 (103) 35 (241)Detroit 14 (97) 55 (350)Mercedes-Benz 7 (50) 36 (250)* Pressures apply with the engine at operating temperature. Oil pressure

may be higher on a cold engine. Observe and record pressures when theengine is new to create a guide for checking engine condition.

Table 2.4, Minimum Engine Oil Pressure


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Engine Oil Temperature Gauge

NOTICEA sudden increase in oil temperature that is notcaused by a load increase may indicate mechani-cal failure. Bring the vehicle to a safe stop andinvestigate the cause to prevent further damage.Do not operate the engine until the cause hasbeen determined and corrected.

During normal operation, the optional engine oil tem-perature gauge should read:

190 to 220F (88 to 104C) for Caterpillar en-gines;

200 to 260F (93 to 126C) for Detroit andCummins engines

177 to 203F (81 to 95C) for Mercedes-Benzengines

Under heavy loads, such as when climbing steepgrades, temperatures that exceed the normal oil tem-perature range for a short period are not unusual. Ifthe temperature returns to normal when the load de-creases, there is no problem.

Fuel Gauge

The fuel gauge indicates the level of fuel in the fueltank(s). A single fuel gauge is standard. If equippedwith an optional second fuel tank, each fuel tanklevel is indicated on a separate gauge.

Primary and Secondary Air PressureGauges

WARNINGIf air pressure falls below minimum pressure, thebraking ability of the vehicle will be limited. Slowthe vehicle down and bring it to a gradual stop.Do not attempt to move the vehicle until air pres-sure has risen above the minimum level. Movinga vehicle without adequate braking power couldcause an accident resulting in personal injury ordeath.

Air pressure gauges register the pressure in the pri-mary and secondary air systems. Normal pressure,with the engine running, is 100 to 120 psi (689 to827 kPa) in both systems.

A low-air-pressure warning light and audible alert,connected to both the primary and secondary sys-tems, activate when air pressure in either systemdrops below 64 to 76 psi (441 to 524 kPa).

When the engine is started, the warning light andaudible warning remain on until air pressure in bothsystems exceeds minimum pressure.

PyrometerA pyrometer registers the exhaust temperature nearthe turbocharger. Variations in engine load can causeexhaust temperatures to vary. If the pyrometer read-ing shows that exhaust temperature exceeds normal,reduce fuel to the engine until the exhaust tempera-

ture is reduced. Shift to a lower gear if the engine isoverloaded.

SpeedometerThe speedometer registers speed in both miles perhour (mph) and kilometers per hour (km/h).

TachometerThe tachometer indicates engine speed in revolutionsper minute (rpm) and serves as a guide for shiftingthe transmission and keeping the engine in the ap-propriate rpm range. For low idle and rated rpm, seethe engine identication plate.

Transmission Fluid TemperatureGaugeThe transmission uid temperature gauge indicatesthe transmission lubricant operating temperature.Temperatures vary by application, but the transmis-sion uid temperature gauge reading should not ex-ceed 250F (121C).

Under heavy loads, such as when climbing steepgrades, temperatures that exceed the normal oil tem-perature range for a short period are not unusual. Ifthe temperature returns to normal when the load de-

creases, there is no problem.

NOTICEA sudden increase in transmission uid tempera-ture that is not caused by a load increase mayindicate mechanical failure. Bring the vehicle to asafe stop and investigate the cause to prevent


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further damage. Do not operate the vehicle untilthe cause has been determined and corrected.

Turbocharger Boost Pressure GaugeA turbocharger boost pressure gauge indicates thepressure in the intake manifold, in excess of atmos-pheric pressure, being created by the turbocharger.

VoltmeterThe voltmeter indicates the vehicle charging systemvoltage when the engine is running and the batteryvoltage when the engine is off. By monitoring thevoltmeter, the driver can stay aware of potential bat-tery charging problems and have them xed beforethe batteries discharge enough to create starting diffi-culties. Vehicles are equipped with either a voltmetergauge, or a digital voltmeter readout located on thebottom line of the dash message center.

The voltmeter will normally show approximately 13.7to 14.1 volts when the engine is running. The voltageof a fully charged battery is 12.7 to 12.8 volts whenthe engine is off. Battery voltage under 12.0 volts isconsidered a low battery, and a completely dis-charged battery will produce only about 11.0 volts.

If the voltmeter shows an undercharged or over-charged condition for an extended period, have thecharging system and batteries checked at an autho-rized Freightliner service facility.On a vehicle equipped with a battery isolator system,the voltmeter measures the average voltage of all thebatteries when the engine is running. When the en-gine is off, the voltmeter shows only the isolated bat-tery voltage and does not indicate the voltage of theengine-starting batteries.

ControlsControls and switches are listed here in alphabeticalorder.

Axle SwitchesDifferential Lock SwitchThe differential lock switch provides maximum trac-tion for slippery conditions by forcing the wheels oneach drive axle governed by the switch to rotate to-gether. Engagement can be at any speed, providedthe wheel s are not slipping or spinning. SeeFig. 2.20 .

Interaxle Lock SwitchThe interaxle lock, standard on all dual-drive ve-hicles, is driver-actuated by means of a LOCK/ UNLOCK control valve switch. See Fig. 2.20 . A redindicator illuminates when the interaxle lock is en-gaged.

NOTICEThe interaxle lock should only be engaged whenthe vehicle is moving slowly at low throttle. En-gagement at high speed or power can damagethe axle(s).

Do not permit rear wheels to spin freely for morethan ten seconds when traction is lost. Shift into

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1. Interaxle Differential Lock Switch2. Fifth Wheel Slide Switch3. Rearmost Axle Differential Lock Switch4. Air Suspension Dump Control Switch

Fig. 2.20, Axle and Suspension Switches


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LOCK to prevent damage to interaxle and maindifferentials.

Brake ControlsNOTE: See Chapter 6 for detailed informationabout brake systems.

Parking Brake Control Valve

NOTICEDo not step on the service brake pedal while theparking brakes are applied. To do so can causedamage to the brake mechanisms.

The yellow diamond- shaped kn ob operates the park-ing brake valve. See Fig. 2.21 . Pull the knob out toapply the tractor and the trailer spring parkingbrakes. Push the knob in to release the spring park-ing brakes. Before the spring parking brakes can bereleased, the air pressure in either air brake systemmust be at least 65 psi (447 kPa).

If the trailer is not equipped with spring parkingbrakes, pull the parking brake valve out to apply thetractor parking brakes and the trailer service brakes.

Trailer Air Supply ValveThe red octagonal-shaped knob operates the trailerair supply valve, which charges the trailer air supplysystem and releases t he trailer spring parkingbrakes. See Fig. 2.21 .

After the vehicle and its air hoses are connected to atrailer and the pressure in the air system is at least65 psi (447 kPa), push the trailer air supply valveknob in (and leave it in) to charge the trailer air sup-

ply system and release the trailer spring parkingbrakes. Pull the trailer air supply valve out beforedisconnecting a trailer or when operating a vehiclewithout a trailer.

Trailer Brake LeverThe trailer brake lever is used to apply the trailer ser-vice brakes without applying the truck or tractor ser-vice brakes. It is u sually mo unted on the right-handcontrol panel. See Fig. 2.22 . The valve can be par-tially or fully applied, but in any partially on position itwill be overridden by a full application of the servicebrake pedal. Move the lever down to apply the trailerbrakes; move the lever up to release the trailerbrakes. The lever will automatically return to the upposition when it is released.

Engine Brake SwitchThe Hi/Med/Lo engine brake 3-position switch con-trols the amount of engine braking. Press the lowerthird of the switch for low , center fo r medium, andupper third for high. See Fig. 2.23 .

Cruise Control

WARNINGDo not use the cruise control system when driv-ing conditions do not permit maintaining a con-stant speed, such as in heavy traffic or on roadsthat are winding, icy, snow-covered, slippery, orroads with a loose driving surface. Failure to fol-low this precaution could cause a collision or

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1. Trailer Air Supply Valve (red knob)2. Parking Brake Control Valve (yellow knob)

Fig. 2.21, Brake Valve Control Knobs

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Fig. 2.22, Trailer Brake Lever


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loss of vehicle control, possibly resulting in per-

sonal injury or property damage.

NOTICEWhen the cruise control is engaged, do not at-tempt to shift gears without using the clutchpedal. Failure to follow this precaution will resultin a temporarily uncontrolled increase in enginespeed. Transmission damage and gear strippingcould result.

Cruise control is activated by two dash-mountedswitches: an On/Off switch and a Set/Decelerate/ Resume/Accelerate switch. See Fig. 2.24 .

Cruise At a Set Speed1. Press the upper part of the cruise control On/Off

switch to turn cruise control on.

2. Hold the accelerator pedal down until the speed-ometer reaches the desired speed.

3. Press the lower half of the Set/Resume/ Accelerate/Decelerate switch momentarily to setthe cruise speed (with the vehicle moving at thedesired speed).

To decrease cruise speed, press and hold thelower half of the Set/Resume/Accelerate/ Decelerate switch to decelerate slowly. Releasethe switch when the desired speed is achieved.

To increase cruise speed, press and hold theupper half of the Set/Resume/Accelerate/ Decelerate switch to accelerate slowly. Releasethe switch when the desired speed is achieved.

Disengage Cruise Control

NOTE: The speed memory is lost whenever theignition is turned off or the cruise control systemis turned off.1. Depress the brake pedal (automatic or manual

transmissions)

or

Depress the clutch pedal (manual transmissionsonly).

2. Press the lower half of the On/Off switch.

NOTE: To resume the preselected cruise speed,increase vehicle speed to above minimumcruise control speed and momentarily press theupper half of the Set/Resume/Accelerate/ Decelerate switch. Cruise will return to the lastspeed selected.

Engine Fan SwitchTo turn the engine fan on, press the upper half of theengine fan switch. See Fig. 2.25 . The fan will con-tinue to operate for a set amount of time and thenturn off unless the coolant temperature is highenough to continue fan operation. To turn the fan offbefore the set time period ends, press the lower halfof the switch.

Ignition SwitchThe ignition switch has four positions: OFF, ACC (ac-cessory), ON, and START. The ignition key alsolocks and unlocks the cab doors, baggage door(s),and if equipped, the bunk door(s).

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Fig. 2.23, Engine Brake Switch

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1. Set/Decelerate/Resume/Accelerate Switch2. Cruise Control On/Off Switch

Fig. 2.24, Cruise Control Switches


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In the OFF position, the ignition switch is vertical.

The key can be inserted and removed only in theOFF position.

The following functions are operable when the igni-tion switch is in the OFF position (regardless ofwhether the key is inserted):

low-beam headlights taillights brake lights road lights dome lights

clearance lights hazard warning lights turn signals utility lights baggage compartment lights spotlights horn clock refrigerator

CB radio power mirrors power receptacle fuel heater electric oil pan heater electric or diesel-red engine coolant pre-

heater

Turn the key counterclockwise to reach the ACC po-sition. In addition to all the functions that are oper-able in the OFF position, the following functions areoperable when the switch is in the ACC position:

radio/stereo system heater and A/C fan mirror defog windshield fan ether start system air dryer backup lights

Turn the key clockwise past the OFF position toreach the ON position. When the ignition is turnedon, the following actions should occur:

electronic gauges complete a full sweep oftheir dials

warning and indicator lamps illuminate, thenare extinguished

audible alert sounds for approximately fourseconds or until sufficient air pressure buildsup in the primary and secondary air systems

software revision level of the ICU is displayedon the driver message center, followed by anyactive faults

IMPORTANT: Do not crank the engine until theICU gauge sweep is complete.Turn the key clockwise past the ON position to reachthe START position to start the engine. Release thekey the moment the engine starts. Do not operatethe starter longer than thirty seconds, then allow thestarter to cool between attempts. If the starter over-heats, the starter protection system will prevent op-eration of the starter until it has cooled. Release thekey the moment the engine starts.

Lighting ControlsExterior Lighting ControlsExterior light controls are listed here in alphabeticalorder.

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Fig. 2.25, Engine Fan Switch


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Backup Lights

Backup lights provide a warning to pedestrians andother drivers that the vehicle is, or is about to, backup.

Daytime Running LightsThe daytime running lights (DRL), if equipped, areautomatically activated when the ignition is switchedon and the parking brake is released. The DRL oper-ate until the parking brake is applied or the head-lights are turned on.

Some vehicles may be eq uipped wi th a momentaryDRL override switch. See Fig. 2.26 . Press the upperhalf of the switch to briey deactivate the DRL.

Fog LightsFog lights are designed to reduce glare in foggy con-ditions.

The low-beam headlights must be on in order to turnthe fog lights on. Press the up per half o f the switchto activate the fog lights. See Fig. 2.26 .

Hazard Warning LightsThe hazard warning light switch tab is located belowthe turn signal lever. Pull the tab out to activate thehazard warning lights. When the hazard warninglights ash, all turn signal lamps and both of the indi-cator lights on the control panel will ash. Move theturn signal lever up or down to cancel the warninglights.

HeadlightsA three-position paddle switch is used to operate theexterior lights. See Fig. 2.26 . Move the paddle switchup to activate the headlights, instrument panel, clear-ance lights, marker lights, and taillights. To deactivateall vehicle lighting, ensure the switch is in the middle

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1. Spotlight Switch2. Dome Light Switch3. Utility Lights Switch4. Foot Well Lights Switch

5. Road Lights Switch6. Rear Strobe Light Switch7. Front Strobe Light Switch

8. Fog Lights Switch9. Headlights/Marker Lights Switch10. DRL Override Switch

Fig. 2.26, Typical Light Controls


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position. Move the paddle switch down to activateonly the clearance, instrument panel, marker lights,and the taillights.

High-Beam HeadlightsTo activate the high-beam headlights, pull the turnsignal lever towards the driver while the low-beamheadlights are on. Pull the turn signal lever backagain to deactivate the high beams and return to lowbeam headlights.

When the high-beam headlights are on, a blue lightilluminates on the instrument cluster.

NOTE: The ignition switch must be on for thehigh beams to work.

Marker Light InterruptA momentary interrupt switch temporarily deactivatesthe marker lights and taillights. With the vehicle lightson, press and release the interrupt switch to brieyturn the marker lights and taillights off. To alert thedriver that the switch is functioning, the dash lightswill ash with the marker lights when the switch isactuated.

Road LightsPress the upper half of the road light switch to acti-vate the road lights mounted on the bottom edge ofthe front bumper or recessed in the front bumper.See Fig. 2.26 .

SpotlightThe spotlight switch is located on the pivoting handleof the spotlight. There may be a single spotlight as-sembly mounted above the drivers door, or oneabove each door.

Turn SignalsThe turn signal lever is mounted on the steering col-umn. Push the lever down to activate the left-turnsignal lights; pull the lever up to activate the right-

turn signal lights. To manually cancel the signal,move the lever to the neutral position. When a turnsignal is activated, a green indicator light ashes onthe instrument cluster.

Utility LightsUtility lights can be swivel-mounted on top of thecab, mounted on the intake/exhaust support, or ush-mounted in the back of the cab or sleeper. Press the

uppe r half of the switch to activate the utility lights.See Fig. 2.26 . Press the lower half of the switch toturn the utility lights off. When activated, a red indica-tor light in the switch is illuminated, if equipped

Interior Lighting ControlsInterior light controls are listed here in alphabeticalorder.

Baggage Compartment LightsBaggage compartment lights are located on the un-derside of the lower bunk, on both sides. Both lightsturn on when either baggage compartment door isopened to illuminate the baggage compartment. Thelights also come on when the lower bunk is raised.

Cab Overhead Console LightsThe overhead console includes a clear reading light,a clear dome light, and a red map light. The domelights illuminate when a door opens, then stay on fora short time after both doors are closed. Press thelens of the reading light, dome light, or map light toactivate each one.

Foot Well LightsWhen the driver or passenger doors are opened, redlights illuminate both foot wells. These lights can alsobe activated with the foot well light switch. SeeFig. 2.26 . Press the upper half of the switch to turnthe foot well lights on, press the lower half of theswitch to turn them off.

The sleeper foot well switch is located in the lowerswitch module in the slee per. It loo ks identical to thecab foot well switch. See Fig. 2.26 . When the switchis activated, two lights illuminate the sleeper oor.

Instrument Panel LightsThe instrument panel lights illuminate when theheadlights are turned on. When the headlights areon, the panel lamp switch controls the intensity of theinstrument panel lamps. Slide the switch up tobrighten them and down to dim them. When theheadlights are turned on, the panel lights setting willdefault to the intensity that was last set.

Rear-Wall Dome LightA rear-wall dome light is available on all sleepercabs. It is located on the rear wall where the wallmeets the roof. To turn on the rear-wall uorescent


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light, press the dome light switch on either the loweror upper bunk control panels.

Sleeper Dome LightA sleeper dome light is located on the roof, betweenthe bunk and the cab on sleeper vehicles. The rearcab dome light will activate with the dome lightswhen a door is opened, then stay on for a short timeafter both doors are closed. Use the dash-mountedswitch or the switch in the sle eper pan el to activatethe rear cab dome light. See Fig. 2.26 .

Sleeper Reading LightsClear reading lights are mounted above the lowerbunk in the rear corners of the sleeper. There aretwo switches in the sleeper control panel for thereading lights. To turn a reading light on, press theupper half of the switch. Press the lower half of theswitch to turn it off.

The reading lights can also be activated by pressingthe lens.

PTO SwitchTo activate the PTO function, press the upper half ofthe switch. Press the lower half of the switch to de-activate the PTO function.

Steering Column Tilt/TelescopeControl

WARNINGMake sure that the steering column is locked be-fore driving the vehicle. Never tilt the columnwhile driving the vehicle. Doing so could causeloss of vehicle control, personal injury, and prop-erty damage.

Adjust the seat to the desired ride position, then tiltor telescope the steering column as needed.

To tilt the steering column, press down on the footpedal located on the steering column. Tilt the steer-ing column up or down to the desired position. Re-lease the foot pedal to lock the steering column inplace.

To telescope the steering column, press down on thefoot pedal located on the steering column. Pull thesteering wheel closer to you or push the steering

wheel away from you. Release the foot pedal to lockthe steering column in place.

Suspension/Trailer ConnectionControlsAir Suspension Dump Control Switch

NOTICEDo not operate the vehicle over uneven groundsuch as ramps, speed bumps, curbs, etc. withthe air springs deated. Doing this may lead toair bag separation from the piston, preventing thesuspension air springs from re-inating.

The air suspension height control switch may beused to aid in connecting or disconnecting from atrailer. When the switch is set to LOWER, the airsuspension dump valve deates the air springs tolower the rear of the vehicle. In the AUTO position,the automatic ride-control valves operate for normaldriving.

NOTICENever exhaust air from the suspension whiledriving. When the air is exhausted, the suspen-sion will not absorb road shocks, and compo-

nents may be damaged.A red LED in the switch is illuminated when the sus-pension is deated.

Fifth Wheel Slide Control Switch

NOTICEDo not activate the fth wheel slide control valvewhile the vehicle is in motion. To do so couldcause damage to the fth wheel member, thekingpin, the cab or trailer, and ultimately to thedrivetrain.

The fth wheel air slide valve allows repositioning ofthe sliding fth wheel from inside the cab. Move theair slide control valve switch to the LOCK position tolock the fth wheel to the baseplate. Move the switchto the UNLOCK position to unlock the fth wheelslide mechanism, allowing changes to the total lengthof the tractor-trailer and changes to axle loads tocomply with state or provincial laws.


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For detailed o perating inst ructions for fth wheelslide, refer to Chapter 10 . A red indicator light illumi-nates whenever the fth wheel slide is unlocked.

Trailer Auxiliary SwitchSome trailers with pneumatic brakes are equippedwith power for the trailer lights. The connection ispassed from the vehicle to the trailer via the primaryreceptacle, controlled by a dash switch.

Press the top of the switch to activate the trailer aux-iliary function. Press the bottom of the switch to turntrailer auxiliary function off.

Windshield Wiper/Washer Controls

NOTICEDo not attempt to manually move the windshieldwiper arms. Wiper motor damage will occur if thearms are forcibly moved.

The wipers are operated by a dual paddle switch lo-cated on the auxiliary instrument panel. SeeFig. 2.27 . To turn the wipers on or off, press the toppaddle in. When the top paddle is pushed up, thewipers will operate at high speed; when it is pusheddown, they will wipe at low speed.

The bottom paddle, when pushed in, turns thewashers on. When pressed for less than -second,the wipers will perform a single, low speed dry wipe(mist function). When pressed for more than-second, the wash cycle begins and continues forthree cycles or until the paddle is released. When thebottom paddle is pushed up, the wipers operate infast delay. When the bottom paddle is pushed down,the wipers operate in slow delay. With the wipers in

delay mode (fast or slow), push the bottom paddleup to shorten the delay period, or push the paddledown to lengthen it.

Roll Stability Advisor andControl SystemThe roll stability system may include only the roll sta-bility advisor (RSA) only, or it may also include theroll stability control (RSC).

A decal ( Fig. 2.28 ) on the auxiliary da sh panel, andan amber-colored dash indicator light ( Fig. 2.29 ), in-dicate that the vehicle is equipped with roll stabilitysystem components.

Roll Stability AdvisorIMPORTANT: This is not an advance warningsystem. The roll stability advisor displays a mes-sage only after the driving maneuver is com-pleted.The roll stability system uses a lateral-accelerationsensor that monitors rollover risk. Shortly aft

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