Paccar Kenworth L770 2024 Operator's Manual
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Paccar Kenworth L770 2024 Operator's Manual

Paccar Kenworth L770 2024 Operator's Manual

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Summary of Contents for Paccar Kenworth L770 2024

  • Page 1 Operator’s Manual...
  • Page 3 Operator's Manual Low Cab Forward (LCF)

  • Page 5: Table Of Contents

    Contents Safety........Emergency........Controls........Driving........Maintenance........Information........
  • Page 6 The information contained in this manual is proprietary to PACCAR. Reproduction, in whole or in part, by any means is strictly prohibited without prior written authorization from PACCAR Inc.
  • Page 7 SAFETY - Chapter 1 | SAFETY Applies To..............................6 Using this Manual..........................6 Safety Messages and Notes......................... 7 Illustrations............................8 General Safety Instructions........................8 Data Recorder............................. 11 Repairs..............................11 Additional Sources of Information....................... 12 Cab Access............................12 Cab Tilting............................14 Standard Seat............................. 17 What to Do Before Starting the Vehicle....................21 Vehicle Loading...........................23 Visual Inspection While Approaching the Vehicle................
  • Page 8 SAFETY - Systems Check........................... 27 Y53-1209-1F1 (06/2024)

  • Page 9: Applies To

    When Using this Manual NOTE replacement parts are needed, we recommend using only genuine PACCAR Please take the time to get acquainted with After you have read this manual, it parts. your vehicle by reading this Operator’s...

  • Page 10: Safety Messages And Notes

    SAFETY - Safety Messages and Notes vehicle. In addition, if your vehicle is right to make changes at any time without Example: equipped with special equipment or options notice. not discussed in this manual, consult your WARNING dealer or the manufacturer of the Safety Messages and equipment.

  • Page 11: Illustrations

    SAFETY - Illustrations death or injury. Special safety precautions are included in the procedures when they Illustrations CAUTION apply. Keep in mind that even a well-maintained Some of the illustrations found in this DO NOT operate your vehicle with in- vehicle must be operated within the range manual are generic.
  • Page 12 Escaping high-pressure fluids can clothing. Tie back and/or tuck in off if any steam or coolant begins to cause severe injury. PACCAR does long hair. Remove all jewelry when escape. Failure to comply may result not provide the approved system working.

  • Page 13: California Proposition 65 Warning

    Coolant is toxic. If not reused, the tools before performing any material gets into the eyes, dispose of coolant in accordance service work. Use only genuine immediately flood eyes with water replacement parts from PACCAR. for a minimum of 15 minutes. Avoid Y53-1209-1F1 (06/2024)

  • Page 14: Data Recorder

    SAFETY - Data Recorder prolonged contact with skin. In information on your rights associated with cle, check with your dealer to make case of contact, immediately wash the use of this data, contact: sure it can be done safely. Failure to skin with soap and water.

  • Page 15: Additional Sources Of Information

    SAFETY - Additional Sources of Information be performed by an authorized service Without steps you could slip and fall. facility. If you are not an experienced Additional Sources of Failure to comply may result in death technician, or do not have the right or personal injury.
  • Page 16 SAFETY - Cab Access WARNING Always face toward the vehicle and DO NOT jump when entering or exiting the cab. Use the steps, handles, and anti-skid surfaces provided instead of components not designed for entry or exit. Always maintain at least three points of contact between your hands, feet, and the vehicle.

  • Page 17: Cab Tilting

    SAFETY - Cab Tilting property are at a safe distance from the center. Failure to comply may result in vehicle. WARNING death, personal injury, equipment damage, or property damage. WARNING To reduce the possibility of personal injury or death, always lock the doors NOTE before driving the vehicle.
  • Page 18 SAFETY - Cab Tilting automatically when pump is actuated). CAUTION Remove heavy items and secure any loose items inside the cab before tilting the cab. Heavy items can damage the tilt mechanism and loose items can damage equipment inside the cab. The following cab tilting instructions are labelled and installed on the base of the companion seat:...

  • Page 19: Lowering The Cab

    SAFETY - Cab Tilting Lowering the Cab Failure to comply may result in equip- ment or property damage Place the control valve handle in the "Raise" position and pump until Place the control valve handle in the locking bar can be removed the "Lower"...

  • Page 20: Standard Seat

    SAFETY - Standard Seat Ensure that the control valve height and backrest incline. The front of the handle is in the “Lower” position seat has controls to move the seat fore and WARNING when operating the vehicle. aft. DO NOT drive the vehicle without your WARNING seat belt and any passengers' belts Standard Seat...
  • Page 21 SAFETY - Standard Seat Incorrect Seat Belt Use properly use all available safety re- WARNING straints while in the vehicle. WARNING A safety restraint’s metal tongue may Correct Placement of Lap Belt DO NOT strap in more than one per- become a striking object during sud- son with each seat belt.
  • Page 22 SAFETY - Standard Seat The lap belt portion must be worn snugly Shoulder Belt Incorrectly Under the Arm and as low as possible across the pelvis. WARNING To avoid pressure on the abdomen, the belt must never pass over the waist. A DO NOT use bleach or dye to clean a properly worn seat belt significantly safety restraint.

  • Page 23: Tether Belts

    SAFETY - Standard Seat Insert the belt latch plate into the Make sure that the belt is not Tether Belts buckle on the inboard side of the twisted. seat. If the belt is locked, lean back to remove WARNING any tension in the belt. After releasing the NOTE belt, allow the belt to retract completely.

  • Page 24: Komfort Latch Feature

    SAFETY - What to Do Before Starting the Vehicle Adjust an external tether by either belt. Failure to comply may result in lengthening or shortening the strap. To death or personal injury. lengthen it: Turn the buckle to a right angle to To eliminate cinching, simply activate the the webbing.

  • Page 25: Emergency Equipment

    SAFETY - What to Do Before Starting the Vehicle text messages, reading or reaching for states that interstate commercial motor other form of mobile messaging while something on the floor. Minimizing vehicles are not to be driven unless the driving. Failure to comply may result in distractions improves safe driving and driver is sure that certain parts and death, personal injury, equipment or...

  • Page 26: Vehicle Loading

    SAFETY - Vehicle Loading accident. Remember that Federal Motor Weight Ratings are determined by the vehicle control, either by causing com- Carrier Safety Regulation 392.7 requires a components installed from the factory. ponent failures or by affecting vehicle pre-trip inspection. So do commercial (Axle weight ratings are listed on the handling.
  • Page 27 SAFETY - Vehicle Loading Weight Distribution Example Axle Weight Payload Distribution Maximum Load Rating Front Axle Example 7,880 lb (3,574 kg) 4,120 lb (1,869 kg) 12,000 lb (5,443 kg) Y53-1209-1F1 (06/2024)

  • Page 28: Visual Inspection While Approaching The Vehicle

    SAFETY - Visual Inspection While Approaching the Vehicle Rear Axles Example 7,540 lb (3,420 kg) 24,348 lb (11,061 kg) 31,925 lb (14,481 kg) Make sure to distribute the load evenly questionable items and repair them marker lamps will not be effective in across the axles so that no one axle without delay.

  • Page 29: Cab Interior

    SAFETY - Daily Checks • Engine Coolant suspension parts such as cracks, • Seat Belts - fasten and adjust gouges, distortions, bulges or safety restraint belts (which may • Power Steering Fluid chafing. include restraints in the sleeper). • Engine Belt •...

  • Page 30: Weekly Checks

    Engine Aftertreatment system check for condition and components cleanliness. • Exhaust pipes • PACCAR FX-20 Front Axle Kingpin Joint Grease/Tie Rod Ends (option) • Engine air pre-cleaner (option) - (VOCATIONAL USE) - For For vocational vehicles with vocational vehicles with this axle,...
  • Page 31 SAFETY - Systems Check Exterior Lighting Self-Test (ELST) is Other systems may also be checked activated. depending on features installed. Systems Check can be interrupted at any Systems Check Display time by: • Pressing Select • Switching the exterior lights OFF •...
  • Page 32 SAFETY - Systems Check Y53-1209-1F1 (06/2024)

  • Page 33: Emergency

    EMERGENCY - Chapter 2 | EMERGENCY Roadside Assistance...........................31 Low Air Actions........................... 31 Stop Engine............................32 Low Oil Pressure..........................32 Engine Is Overheating.........................32 How to Inspect and Replace a Fuse....................34 How to Jump Start a Battery....................... 35 Where are the fuses located?......................37 How to Recover a Vehicle........................

  • Page 34: Emergency - Roadside Assistance

    Call toll-free to talk to someone at the operating the vehicle, perform the following WARNING PACCAR Customer Center. actions: Slow down carefully. If the air pressure falls below 60 psi Move a safe distance off the road (414 kPa), the spring brakes may and stop.

  • Page 35: Stop Engine

    EMERGENCY - Stop Engine If necessary, add oil. If the problem persists, contact an authorized Stop Engine CAUTION dealer as soon as possible. DO NOT operate your vehicle with in- Engine Is Overheating sufficient oil pressure as this will cause serious engine damage.
  • Page 36 EMERGENCY - Engine Is Overheating or if you see any steam or coolant es- WARNING caping. Always remove the cap very NOTE slowly and carefully. Be ready to back To reduce the chance of personal in- off if any steam or coolant begins to The system may also temporarily over- jury, vehicle damage and/or death escape.

  • Page 37: How To Inspect And Replace A Fuse

    EMERGENCY - How to Inspect and Replace a Fuse normal. Idling the engine allows the Failure to comply may result in proper- may result in equipment or property engine to cool gradually and ty damage, personal injury, or death. damage. uniformly.

  • Page 38: How To Jump Start A Battery

    EMERGENCY - How to Jump Start a Battery not available, a fuse of a lower rating may be temporarily substituted. You can also How to Jump Start a use a fuse from a circuit you can Battery temporarily do without (for example an accessory circuit or radio).
  • Page 39 EMERGENCY - How to Jump Start a Battery Short circuits can cause electrical sonal injury, and/or equipment or prop- WARNING burns and or an explosion. Other dam- erty damage. age may occur to components of the Never jump start a battery near fire, vehicle including sensitive circuitry.

  • Page 40: Where Are The Fuses Located

    EMERGENCY - Where are the fuses located? Remove any jewelry that may Attach the remaining jumper cable come in contact with the battery FIRST to the negative (-) terminal WARNING terminals. (black or N) of the good battery. Select a jumper cable that is long Attach the other end of the When disconnecting jumper cables, enough to attach to both vehicles in...

  • Page 41: How To Recover A Vehicle

    EMERGENCY - How to Recover a Vehicle Main power relays are located on the the rear and will leave the top components power distribution center in the engine dry. The resulting friction may damage CAUTION compartment. them. Always remove the main drive axle shafts before towing your vehicle.
  • Page 42 EMERGENCY - How to Recover a Vehicle that any air line that has been Copies of this literature can be obtained removed from a driver-controlled from the following address: Technology & WARNING main differential lock is firmly Maintenance Council 950 N. Glebe Road capped to prevent loss of air Arlington, VA 22203 Phone: (703) DO NOT operate a vehicle when the...
  • Page 43 EMERGENCY - How to Recover a Vehicle WARNING Releasing the spring brakes on an un- secured vehicle could lead to an acci- dent. The vehicle could roll, which may result in death, personal injury, equip- Insert the release stud through the ment or property damage.
  • Page 44 EMERGENCY - How to Recover a Vehicle made up of the following parts, are recommended for the proper recovery of the vehicle: With a wrench, turn the release stud assembly nut until the compression spring is 90-95 If the vehicle is not equipped with the Recovery Hitch percent caged.
  • Page 45 EMERGENCY - How to Recover a Vehicle How To Use a Recovery Hitch With lock pins removed, insert the hitches through the bumper and WARNING into the square hitch socket. CAUTION Align the hole in the tow hitch with DO NOT use parts from other vehicles the square hitch socket hole.
  • Page 46 EMERGENCY - How to Recover a Vehicle application of the spring brakes causing taminate the axle fluid and cause pos- wheel lock-up and loss of control. This CAUTION sible damage to components. Ensure condition can lead to a rear-end collision that the hubs are covered with plastic with a following vehicle.
  • Page 47 EMERGENCY - How to Recover a Vehicle • To use the recovered vehicle's between the air cylinder and the brakes, connect the vehicle's air bolt head. This action will lock the WARNING system to that of the recovery differential by pushing a piston into vehicle.
  • Page 48 EMERGENCY - How to Recover a Vehicle Best Practices for Recovery cable no closer than 6 ft. (1.8 m) from the vehicle (acceptable). Rigging Recovery Rigging Options • Secure the towed vehicle using two additional chains or cables. PREFERRED ACCEPTABLE CAUTION Returning to Service After Recovery pull maximums assume that...
  • Page 49 EMERGENCY - How to Recover a Vehicle lock air line must also be re- • Apply light pressure on the installed in its normal position. accelerator pedal while the CAUTION transmission is in gear. Add the correct lubricant back to the axles after recovering the vehicle and before •...
  • Page 50 EMERGENCY - How to Recover a Vehicle roof, side, and chassis fairings. Damage occurs if you do not secure these items. WARNING Secure the roof, side, and chassis fair- ings while towing from the rear. An un- secured fairing may come off of the vehicle during transit while towing from the rear.

  • Page 51: Controls

    CONTROLS - Chapter 3 | CONTROLS Instrument Cluster..........................50 Steering Wheel Controls........................55 City Horn............................. 55 Air Horn............................... 55 Instrument Cluster..........................56 Digital Gauges.............................57 Optional Gauges..........................59 Bulb Check............................59 Warning Lights and Indicators......................60 Digital Display............................. 75 Display Notifications..........................77 Views..............................78 Menu..............................82 Post Trip..............................85 Steering Column Controls........................
  • Page 52 CONTROLS - Rear Suspension Controls........................ 112 Heating and Air Conditioning......................114 Cab Accessories..........................118 Y53-1209-1F1 (06/2024)

  • Page 53: Instrument Cluster

    CONTROLS - Instrument Cluster Instrument Cluster Y53-1209-1F1 (06/2024)
  • Page 54 CONTROLS - Instrument Cluster Information Display Left Hand Drive (Shown with optional dual drive configuration) Cup Holder Automatic Transmission Gear Selector Primary Ignition Switch Window Switches Mirror Control Electronic Switches for Controls from Either Driving Position 12V Charge Port Left Hand Side Electronic Switches Arm Rest/Storage Box OBD Port...
  • Page 55 CONTROLS - Instrument Cluster Primary Ignition Switch Right Hand Stand Up Cab Station (Option) Parking Brake Flipper Brake Valve Cup Holder Information Display City Horn Speedometer Accessory Gauge Accessory Gauge Multi-Function Turn Stalk Y53-1209-1F1 (06/2024)
  • Page 56 CONTROLS - Instrument Cluster Information Display Left Hand Drive Station Menu Control Switch Exterior Light Self Test Y53-1209-1F1 (06/2024)
  • Page 57 CONTROLS - Instrument Cluster Left Hand Station Right Hand (Curb Side) Dual Drive Dual Configuration (Option) Left Hand Display Menu Control Switch Left Side Park Brake Valve Air Switches Primary Ignition Switch Right Side Park Brake Valve Flipper Valve (Option) Cup Holder City Horn Trip...

  • Page 58: Steering Wheel Controls

    CONTROLS - Steering Wheel Controls instrument cluster (see Digital Display page 75). Steering Wheel Controls City Horn CAUTION Depressing the horn pad in the center of the steering wheel activates the city horn. DO NOT attempt to service the steer- ing wheel, clockspring, or any of the electrical wiring in the multiplex sys- Air Horn...

  • Page 59: Instrument Cluster

    CONTROLS - Instrument Cluster Speedometer If the oil pressure suddenly drops, or the audible alarm and engine oil pressure Instrument Cluster The Speedometer indicates the vehicle warning light come on while driving, safely speed in miles per hour (mph) and in stop the engine and address the issue.

  • Page 60: Digital Gauges

    CONTROLS - Digital Gauges cluster as a virtual gauge. The tachometer gauge value rises into this zone, the is a useful gauge when attempting to drive boundary will be indicated with a white line. WARNING efficiently. It will let you match driving If it lowers, it will be indicated with a red speed and gear selection to the operating line.
  • Page 61 CONTROLS - Digital Gauges of your truck's fuel capacity. Allowing comply may result in death or personal CAUTION the fuel level to go below one-quarter injury. of capacity could result in the lack of fuel to keep the engine running. Keep Use only Ultra Low Sulfur Diesel WARNING the fuel tanks at least half-full to re-...

  • Page 62: Optional Gauges

    CONTROLS - Optional Gauges NOTE CAUTION CAUTION The instrument cluster gauges may DO NOT attempt to move the vehicle Only use Diesel Exhaust Fluid (DEF). appear (if hidden from view), change before air system pressure reaches Failure to do so may damage compo- brightness, and change color to bring 100 psi (689 kPa).

  • Page 63: Warning Lights And Indicators

    CONTROLS - Warning Lights and Indicators include but are not limited to headlight on, The instrument panel communicates many fifth wheel, stop engine, primary/secondary vehicle conditions using warning lights WARNING air, and driver door open warnings. (also called telltales), indicators, and audible alarms and tones.
  • Page 64 CONTROLS - Warning Lights and Indicators Indications Title Symbol Color Antilock Brake System (ABS) Amber ● Anti-lock Brake System (ABS), Trailer on page 67 Amber ● Axle, Front Drive Enganged on page 67 Amber ● Axle, Oil Temperature (Forward or Rear) on page 67 Amber ●...
  • Page 65 CONTROLS - Warning Lights and Indicators Title Symbol Color Stability Control (Option) on page 66 Amber ● Traction Control on page 65 Amber ● Transmission, Check on page 74 ● Diesel Particulate Filter (DPF) on page 69 Amber ● Differential, Inter-Axle Lock on page 69 Green ●...
  • Page 66 CONTROLS - Warning Lights and Indicators Title Symbol Color Green ● Engine, Coolant Temperature on page 71 ● Engine, Low Coolant Level on page 71 Amber ● Engine, Oil Pressure on page 56 ● Engine, Overspeed Air Shutdown on page 72 ●...
  • Page 67 CONTROLS - Warning Lights and Indicators Title Symbol Color Emissions, High Exhaust System Temperature on page 70 Amber ● Lights, High Beam on page 73 Blue ● Amber ● Park Brake on page 68 ● Seat Belt Fasten on page 74 ●...

  • Page 68: Traction Control

    CONTROLS - Warning Lights and Indicators Title Symbol Color Transmission, Oil Temperature High on page 75 Amber ● Turn Signal, Left on page 75 Green ● Turn Signal, Right on page 75 Green ● In addition to issues internal to the camera, Monitors wheel speed for poor traction.
  • Page 69 CONTROLS - Warning Lights and Indicators off after the traction control event the ESC Warning Lamp will switch has ended. on and stay on. NOTE • Flashes continuously when the • Illuminates when the ESC system ATC/Deep Snow & Mud switch is is regulating individual wheel For more information about the stabili- placed in the on position, indicating...
  • Page 70 CONTROLS - Warning Lights and Indicators temperatures signal a need to have your • Illuminates during normal operating axle(s) lubrication checked. conditions to indicate a problem NOTE with the ABS system. • Illuminates when a problem exists For more information about the stabili- CAUTION with Automatic Traction Control ty control system installed on your ve-...

  • Page 71: Park Brake

    CONTROLS - Warning Lights and Indicators Anti-lock Brake System (ABS), Park Brake quired external warning light mounted Trailer on the trailer. The indicator light on the trailer should be amber and identified with the letters ABS. Illuminates during bulb check. Have the ABS system checked by an authorized Brake System Malfunction Illuminates when the parking brake is...

  • Page 72: Diesel Particulate Filter (Dpf)

    CONTROLS - Warning Lights and Indicators cluster. Refer to the operator manual for For more information about this warning, Differential, Inter-Axle Lock more details. consult the Engine Aftertreatment System operator's manual. DEF Warning Lamp in Instrument Cluster NOTE Illuminates when the inter-axle differential switch is ON thus locking the inter-axle This manual describes only the most ba- differential.
  • Page 73 CONTROLS - Warning Lights and Indicators WARNING WARNING NOTE If the High Exhaust System Tempera- When the High Exhaust System Tem- Tractors/trucks and trailers built after ture (HEST) warning light is on, do not perature (HEST) warning light is on, 03/01/2001 must be able to turn on an park near combustible vapors or mate- the temperature of the tailpipe, ex-...
  • Page 74 CONTROLS - Warning Lights and Indicators not be considered an emergency. In some Engine Brake Indicator to, Water in Fuel, No-Idle Shutdown alert cases, the Malfunction Indicator Light will screens, High Exhaust Temperature, activate in conjunction with the High Diesel Particulate Filter (DPF), and Diesel Exhaust Temperature, Diesel Particulate Exhaust Fluid (DEF) warning lights.

  • Page 75: Engine, Oil Temperature

    CONTROLS - Warning Lights and Indicators but the situation should not be considered warning light come on while driving, safely This warning light appears with an audible an emergency. stop the engine and address the issue. For alarm tone when a major engine system further information on engine gauges and problem exists.

  • Page 76: Fuel Filter Restriction

    CONTROLS - Warning Lights and Indicators Warning (LDW) system. If this occurs, the stops flashing, the starting motor is al- LDW feature will be disabled. NOTE lowed to function. Lights, High Beam The length of time the 'Wait-To-Start' lamp remains illuminated depends on Fuel Filter Restriction the ambient temperature.

  • Page 77: Malfunction Indicator Lamp (Mil)

    CONTROLS - Warning Lights and Indicators use the emergency hazard lights if the Filter (DPF) and Diesel Exhaust Fluid Tire Inflation (TPMS) vehicle is disabled or parked under (DEF) Warning Lights. emergency conditions. NOTE WARNING Illuminates when tire pressures need to be Only for engines equipped with emis- checked.

  • Page 78: Digital Display

    CONTROLS - Digital Display Transmission, Oil Temperature Blinks when the right turn signal or the • Starting the engine hazard light function is operating. High If after 20 seconds, none of these actions are taken, the display will darken to conserve power, but will awaken when any Turn Signal, Left wake action is performed.

  • Page 79: Digital Display Features

    CONTROLS - Digital Display Digital Display Features Anti-Theft (option) Adaptive Cruise Control Anti-Theft prevents a driver from starting the engine unless the Anti-Theft passcode Notification (option) is entered. If Anti-Theft is enabled, turning the ignition switch to START prompts the operator to enter the passcode.

  • Page 80: Display Notifications

    CONTROLS - Display Notifications Using the Scroll, scroll to the first number in the code then press Display Notifications Select. The digital display communicates vehicle 12:44 ° information using digital warning lights (also called Telltales), gauge states, notifications, indicators, and audible alarms.

  • Page 81: Views

    CONTROLS - Views notifications show an “X” below the Select The active warnings count may change optional systems, appearing only if those icon and typically don't require an without user interaction if individual systems are installed and/or active. The immediate response. Suppress these warnings are intermittent, time based, self menu is also positioned in the view notifications using the Back/Cancel button...
  • Page 82 CONTROLS - Views access these options. All views present the Outside Air Temperature (OAT) Gauge Views following indications: Transmission Mode View Indicator Standard Indications Diesel Exhaust Fluid (DEF) level. Trip Information (see Trip Info page 81). Odometer Fuel Gauge When the parking brake is released, the display will show useful driving information, minimizing the currently selected view.

  • Page 83: Custom Setup

    CONTROLS - Views • Primary Gauges – The highest Custom Gauge View (option) not been configured, scrolling to the priority gauges. For vehicles with custom view allows the operator to enter air brakes this will include the the custom view setup (See Custom primary and secondary air tank Setup).
  • Page 84 CONTROLS - Views Trip Info detailed trip information see Trip Summary NOTE located in the menu. A gauge, once selected, can Adaptive Cruise (option) be removed by selecting that gauge again, clearing check mark. If another gauge or compound gauge is desired, repeat steps 2 and 3.

  • Page 85: Menu

    CONTROLS - Menu The Adaptive Cruise view contains optional uses indicated above the scale How to Start the PTO and/or consult your features designed to improve the driving line. PTO manufacture's operating instructions. experience: • RPM limits – indicated by the red •...
  • Page 86 CONTROLS - Menu Trip Summary • Idle – Shows the fuel usage and is set. Use the Scroll to choose the menu time spent when idling. view and then press Select to access the Trip Summary is used to view accumulated menu.

  • Page 87: Truck Information

    CONTROLS - Menu • Unit Standard/Metric – Changes Truck Information • Predictive Cruise (PACCAR the numerical readout to Standard, Engines Only) Metric or Metric with PSI units. • GHG Speed Limiter (option) • Language – Changes the language • Tire Pressure Monitor (option) to English, Spanish, or French.

  • Page 88: Post Trip

    CONTROLS - Post Trip the distance to empty. Post trip is shown steering column. The ignition key must be when the ignition switch is turned to OFF. turned to ON for the signal/switch to Post Trip During Post Trip, the menu can be operate.
  • Page 89 CONTROLS - Steering Column Controls High Beam Operation When the headlights are ON, pull the Turn Signal towards the operator until it clicks. WARNING DO NOT use high beams in the pres- ence of oncoming traffic. High beam glare can blind other drivers which in- creases the risk of an accident.
  • Page 90 CONTROLS - Steering Column Controls Flash-to-Warn Halogen headlamps act one of three ways based on the headlight’s initial state: • If the low beam headlights are ON, WARNING the flash-to-pass operation will momentarily dim the headlights. DO NOT use high beams in the pres- •...
  • Page 91 CONTROLS - Steering Column Controls Operate the Windshield Wipers glass. Scratched windshields reduce visibility. A seven-position rotary wiper switch WARNING (located on the turn signal lever) operates the windshield wipers and washer. If you Clean blades regularly with a damp need to use the windshield wipers: cloth to remove road film and wax Rotate the end of the turn signal...

  • Page 92: Dash Switches

    CONTROLS - Dash Switches with a dry reservoir, the pump motor Dash Switches CAUTION may be damaged. This custom vehicle has a wide variety of If you need to use the windshield washer: DO NOT use antifreeze or coolant in switch-controlled equipment.
  • Page 93 CONTROLS - Dash Switches Title Symbol Color Stnd Axle, Diff-Lock - Forward Rear on page 100 Amber ● Axle, Diff-Lock - Steer on page 100 Amber ● Axle, Diff-Lock - Rear Rear on page 100 Amber ● Axle, Diff-Lock - Single Rear on page 100 Amber ●...
  • Page 94 CONTROLS - Dash Switches Title Symbol Color Stnd Back Up Alarm Mute Amber ● Batteries, Low-Voltage Disconnect (LVD) on page 101 None ● Brakes, ABS Off-Road on page 101 Amber ● Brake, Parking Brake Valve on page 101 Yellow ● Lights, Cab and Panel Dimmer Switch None ●...
  • Page 95 CONTROLS - Dash Switches Title Symbol Color Stnd Engine, Heater on page 103 Green ● Engine, Remote Throttle on page 103 Amber ● Engine, Under Hood Air Intake on page 103 Amber ● Exhaust, Diesel Particulate Filter (DPF) Regeneration None ●...
  • Page 96 CONTROLS - Dash Switches Title Symbol Color Stnd Ignition Key Switch on page 104 None ● Ignition Switch (Secondary) on page 105 None ● Lane Departure Warning (LDW) Disable on page 105 Green ● Lights, Beacon on page 105 Green ●...
  • Page 97 CONTROLS - Dash Switches Title Symbol Color Stnd Lights, Work on page 109 Green ● Lights, Dome on page 106 None ● Lights, Flood (Spare) on page 107 Green ● Lights, Fog on page 107 Green ● Lights, Hazard on page 108 ●...
  • Page 98 CONTROLS - Dash Switches Title Symbol Color Stnd Lights, Marker/Clearance/Trailer on page 108 None ● Lights, Auxiliary on page 105 Green ● Lights, Park Light on page 109 None ● Lights, Spot on page 109 Green ● Menu Control Switch on page 109 None ●...
  • Page 99 CONTROLS - Dash Switches Title Symbol Color Stnd Power Take-off (PTO), Forward on page 110 None ● Power Take-off (PTO), Rear on page 110 None ● Suspension, Air Retention on page 110 Amber ● Suspension, Axle, Pusher on page 110 Green ●...
  • Page 100 CONTROLS - Dash Switches Title Symbol Color Stnd Trailer, Axle (3rd Axle) Lift on page 111 Green ● Mud and Snow Traction Control on page 109 None ● Pintle Hook on page 109 Green ● Roofdenser on page 110 Green ●...
  • Page 101 CONTROLS - Dash Switches Title Symbol Color Stnd Trailer, Axle Lift Forward on page 111 Green ● Trailer, Axle Lift Rear on page 111 Green ● Trailer, Front Dump Gate on page 111 ● Trailer, Dump Gate on page 112 ●...
  • Page 102 CONTROLS - Dash Switches Title Symbol Color Stnd Trailer, Hotline on page 112 Green ● Trailer, Suspension Air Dump on page 112 Amber ● Transmission, Transfer Case on page 112 Amber ● Transmission, Transfer Case Two-Speed on page 112 Amber ●...
  • Page 103 CONTROLS - Dash Switches Axle, Diff. Lock - Dual Axle, Diff-Lock - Rear Rear Axle, Differential Lock - Tridrive Turn switch on to engage Front and Rear Turn switch on to engage Rear Rear Axle Axle Diff Lock. Diff Lock. Axle, Diff-Lock - Forward Rear Axle, Diff-Lock - Single Rear Tridrives will have these axle differential...
  • Page 104 CONTROLS - Dash Switches Axle, Two Speed Turn switch on to engage ABS Off-Road The engine fan switch allows you to control mode. See Antilock Brake Systems (ABS) the engine fan manually or automatically. on page 141. With the ignition key switch ON and the fan switch in the MANUAL position, the engine fan will be on regardless of engine Brake, Parking Brake Valve...
  • Page 105 CONTROLS - Dash Switches but the situation should not be considered Engine, Cruise Control Set/Resume an emergency. CAUTION The Check Engine Lamp activates for several reasons including, but not limited The fan or equipment near it could be to, Water in Fuel, No-Idle Shutdown alert damaged if the fan turns on suddenly screens, High Exhaust Temperature, when you do not expect it.

  • Page 106: Engine Heater

    CONTROLS - Dash Switches Engine, Under Hood Air Intake Manually controls the diesel particulate filter (DPF) regeneration process. Refer to This switch opens a door in the engine air WARNING Engine Aftertreatment Controls Operator's filter housing. This action allows intake of Manual for additional information.

  • Page 107: Ignition Key Switch

    CONTROLS - Dash Switches The following lights and accessories have power when the key is in the NOTE NOTE OFF position: • brake lights Vehicles having an air slide fifth wheel The generic air accessory switch is de- • emergency hazard flasher have a fifth wheel slider lock controlled signed by the original equipment man- by a switch on the instrument panel.
  • Page 108 CONTROLS - Dash Switches for the primary ignition switch also Turn switch on for Auxiliary Lights. START: Turn the key to this position to start operates the secondary ignition switch. your engine. Release the key after the engine has started. The secondary ignition switch is located in Lights, Beacon the driver kick panel on either the left or...
  • Page 109 CONTROLS - Dash Switches Lights, Daytime Running (Override) ON, the DRL system is overridden, and may interrupt the test by turning the vehicle headlights operate normally. Also, the DRL off or activating the switch a second time is temporarily turned off during engine while the test is running.
  • Page 110 CONTROLS - Dash Switches • Work/Load lights (option) the engine is on). A limited ELST tests only Lights, Fog the legal driving lights. • Sign light (option) Turn the Exterior Lighting Switch Limited ELST (ELS) to the momentary ELST position and release the switch, or A limited ELST will alternately turn on and then off the following lights: Turn switch on for Fog Lights.
  • Page 111 CONTROLS - Dash Switches Lights, Hazard Lights, Headlight remove any condensation. See Door- Mounted Mirror Controls for the mirror heat switch location. Lights, Marker/Clearance Turn switch for park/marker lights and This switch operates the emergency headlights. When the headlights are ON, flashers.
  • Page 112 CONTROLS - Dash Switches Lights, Park Light Mud and Snow Traction Control Turn switch on for Park Lights. When the Park Lights are on the dash lights, side and Momentarily push switch in to engage tail lights are also on. Traction Control (TC).
  • Page 113 CONTROLS - Dash Switches the status indicator light (located on the Power Take-off (PTO), Forward Suspension, Axle, Pusher switch) will immediately illuminate even though PTO engagement may not have occurred. If the PTO is engaged and the operator turns the switch OFF, the PTO status indicator light (located on the switch) Your vehicle may be equipped with a dash will turn off immediately even though PTO...
  • Page 114 CONTROLS - Dash Switches Suspension, Dump Trailer, Axle Lift Forward line components. If a vehicle must be operated under such conditions, do not exceed 5 mph (8 km/h). Failure to comply may result in equipment dam- age. Turn switch on to lift Forward Trailer Axle. Turn switch on to deflate suspension air bags.
  • Page 115 CONTROLS - Rear Suspension Controls Trailer, Belly Dump Gate Rear Turn switch on to supply electrical power to Winch Clutch trailer accessories. Trailer, Suspension Air Dump Turn switch on to engage winch clutch. Turn switch on to open Trailer Rear Belly Dump Gate.

  • Page 116: Operation Summary

    CONTROLS - Rear Suspension Controls Operation Summary or Raised) and system error codes. If the Lowering Rear Suspension red LED is flashing or error codes are Press and hold the Dump Suspension present, continue driving only after switch for approximately one second, and verifying the suspension is in a state to Current Desired...

  • Page 117: Heating And Air Conditioning

    CONTROLS - Heating and Air Conditioning is traveling faster than 7 MPH, raise modify the air temperature settings for the suspension mode will not activate. cab. NOTE NOTE If the ignition is turned “off” and the ve- hicle is left in either the dump or dumpd mode, the vehicle will remain in Speed thresholds are approximate.
  • Page 118 CONTROLS - Heating and Air Conditioning monoxide to enter the cab, resulting in WARNING NOTE personal injury or death. DO NOT drive with visibility reduced or Keep the engine exhaust system and WARNING obscured by fog, condensation, or the vehicle's cab ventilation system frost on the windshield.

  • Page 119: Air Conditioner Control Panel

    CONTROLS - Heating and Air Conditioning Air Conditioner Control Panel NOTE If you are parked next to idling vehi- cles, move your vehicle or do not stay in your vehicle for prolonged periods of time. Symbols for the air conditioning control panel Image Function The source of air entering the cab can be set to either outside air or recirculation air using the button inside the fan...
  • Page 120 CONTROLS - Heating and Air Conditioning Image Function Panel Vents Floor and Defrost Vents (and Fresh air intake) this button switches on the gages automatically in AUTO, defrost, compressor. How to Manually Control the Cab and floor/defrost. Air Conditioner The air conditioner defaults to manual Temperature Set the cab temperature using the mode when switched on.
  • Page 121 CONTROLS - Cab Accessories deactivate the sleeper HVAC. Use the integrated with GPS navigation and Left Hand Overhead Accessories button inside the mode dial. telematics is also available (option). For instructions on how to operate your particular radio, see the supplemental operating manual for those units.
  • Page 122 CONTROLS - Cab Accessories Y53-1209-1F1 (06/2024)

  • Page 123: Driving

    DRIVING - Chapter 4 | DRIVING Starting and Operating........................121 Lighting..............................130 Engine Operations..........................132 Transmission.............................137 Brakes............................... 140 Axle and Suspension........................150 Trailer Operation..........................158 Engine Aftertreatment System......................162 Y53-1209-1F1 (06/2024)

  • Page 124: Starting And Operating

    DRIVING - Starting and Operating not use the starter for more than 30 seconds. Let the starter motor cool Starting and Operating NOTE and the batteries recover for two minutes before trying again. While Since each vehicle is custom-equipped, all Some starters are equipped with over- waiting, check the fuel lines for engine operation instructions in this...
  • Page 125 This action allows the transmission tion. the recommended AWG cord for a 20-amp lubricating oil to warm up load. PACCAR uses both 110 and 220 volt (approximately 3-5 min) before engine block heaters. Make sure to operating the vehicle. CAUTION reference the correct voltage if you need a longer cord.
  • Page 126 DRIVING - Starting and Operating Configuration Voltage Amperage Wattage 0–1700 1701–2400 0–3300 3301–4800 Y53-1209-1F1 (06/2024)
  • Page 127 DRIVING - Starting and Operating Engine Warm Up slow the oil flow until the oil warms, re- gine exhaust gas. A poorly maintained, ducing oil available for the bearings. damaged, or corroded exhaust system Engine warm-up allows oil film to establish Watch the engine oil temperature or can allow carbon monoxide to enter between pistons and liners, shafts, and...
  • Page 128 DRIVING - Starting and Operating WARNING NOTE CAUTION To reduce the chance of personal in- If you are parked next to idling vehi- DO NOT allow your engine to idle, at jury, vehicle damage and/or death cles, move your vehicle or do not stay low rpm (400-600 rpm), longer than from overheated engines, which can in your vehicle for prolonged periods of...

  • Page 129: Driving Tips And Techniques

    DRIVING - Starting and Operating Engine Overspeed Put the auxiliary (AUX) premature failure or damage to the clutch transmission in neutral. This and transmission and overloads the brake action allows the transmission system. Coasting with the transmission in CAUTION countershaft to turn, agitating neutral also prevents proper transmission the oil and warming it.

  • Page 130: Fuel Consumption

    DRIVING - Starting and Operating Fuel Consumption The tachometer is an instrument that aids • Shift into higher or lower gears (or in obtaining the best performance of the apply the service brake) to keep The vehicle's fuel consumption is engine and manual transmission, serving engine rpm near the lower end of connected to five important factors:...

  • Page 131: General Condition

    DRIVING - Starting and Operating • Excessive speed and unnecessary Idle the engine at 1,000 rpm for five amount to each fuel tank on vehicles with fast acceleration minutes. Then low idle for 30 seconds more than one tank. before shutdown. This will allow circulating •...

  • Page 132: Final Stopping Procedures

    DRIVING - Starting and Operating Final Stopping Procedures WARNING CAUTION WARNING DO NOT leave the transmission in Use only Ultra Low Sulfur Diesel gear to hold a parked vehicle. Always When parking a vehicle, fully raise lift (ULSD) Fuel, as recommended by en- set the parking brake.

  • Page 133: Lighting

    DRIVING - Lighting not deplete the entire air supply. Be Secure the vehicle. Close all the sure to close the drains before windows and lock all the doors. leaving the vehicle. Lighting Lighting Switches Headlights Marker Hazard Warning Exterior Lights Self-Test (ELST) Dome Y53-1209-1F1 (06/2024)
  • Page 134 DRIVING - Lighting Dome Light Lights, Daytime WARNING Turns on cab interior overhead light. See Running (Override) Lights, Dome on page 106. on page 106. If the vehicle's low beam wiring circuit ELST does not function correctly, pull com- pletely off the road and call the nearest Starts an Exterior Lights Self Test.

  • Page 135: Engine Operations

    PTO indicator with a target indicates that the vehicle has the PTO. You can also activate it by setting the PTO engine speed. PACCAR TX-12/TX-18 or Eaton Cruise Control Switch to ON but while the Endurant automated transmission. vehicle is stationary. The following...

  • Page 136: Engine Fan Control

    ON position. In equipment or property damage. buttons while the vehicle moves). AUTO, it could engage suddenly with- Vehicles powered with PACCAR MX out warning. Before turning on the igni- engines display the PTO engine speed Using a Winterfront tion or switching from AUTO to MAN- above the PTO indicator.

  • Page 137: Engine Brake Operation

    DRIVING - Engine Operations Engine Brake Operation CAUTION A winterfront should only be used at Vehicles manufactured with diesel engines temperatures below 40°F (4°C). Use have an Engine Aftertreatment System of a winterfront above 40°F (4°C) can (EAS) to control vehicle exhaust decrease life of cooling module com- emissions.

  • Page 138: Cruise Control

    Press SET to set the cruise speed. How to Set Cruise Control Speed The vehicle speed must be greater than 10 mph (16 kph) for PACCAR powered Y53-1209-1F1 (06/2024)
  • Page 139 DRIVING - Engine Operations Press the Set portion of the SET/ This vehicle may be equipped with NOTE RESUME button on the dash to Adaptive Cruise Control (ACC) to enhance increase speed standard cruise control. With a forward radar and camera to detect objects in front Cruise Control may not hold the set Press the Resume portion of the of the vehicle, ACC will adjust the speed of...

  • Page 140: Transmission

    DRIVING - Transmission More Tips amber. When the following distance Both of these conditions can occur when decrease more (0.5 seconds), the following Cruise Control and Adaptive Cruise Control • Always use the clutch when are not active, providing the vehicle is distance bars turns red.

  • Page 141: Automatic Transmissions

    Drive mode (Manual shown) only), then gradually accelerate to pattern and its location, you should read Current gear permit smooth starting. the transmission manufacturer’s manual Vehicles with PACCAR TX-12/TX-18 or provided with your vehicle before operating Eaton Endurant transmissions will show Y53-1209-1F1 (06/2024)
  • Page 142 DRIVING - Transmission DO NOT allow the vehicle to roll Shift carefully in a new vehicle. The match the vehicle's engine speed with (even a little) in the opposite transmission may be a little stiff at first. driveline speed to achieve clash-free shifts. direction during clutch Avoid gear clashing by closely following The manual transmission in the vehicle is...

  • Page 143: Auxiliary Transmission

    DRIVING - Brakes Parking Brake Auxiliary Transmission one circuit is compromised and loses air, the other circuits will not be affected. If you have an auxiliary transmission, see Safety valves in each circuit will protect the your transmission manufacturer’s manual other circuits in the event that a circuit for its proper operation.

  • Page 144: Automatic Traction Control

    DRIVING - Brakes has a leak and loses air. In such a (ATC) feature. A switch on the dash scenario, the parking brake will apply. controls this feature. Check for illumination WARNING The vehicle’s parking brake controls are of the ABS and traction control warning the yellow diamond shaped knob on your lamps when first starting the vehicle.
  • Page 145 DRIVING - Brakes Trailer ABS Power Line Communication (PLC) WARNING NOTE North American on-highway vehicles are equipped with a separate electrical circuit DO NOT rely on an antilock brake sys- Tractors/trucks and trailers built after to power the ABS on towed vehicle(s). In tem that is functioning improperly.
  • Page 146 DRIVING - Brakes the trailer ABS system, which may affect its operation. NOTE NOTE Very trailers built before 03/01/2001 have this option. Trailers The center pin of the 7-way trailer light built after 03/01/2001 are built with line may be constantly powered for PLC technology.
  • Page 147 DRIVING - Brakes Automatic Traction Control A Real World Example of How the wheelbase, suspension, steering geometry, weight distribution front to rear, and vehicle System Operates track width. Excessive speed for road conditions creates forces that exceed the threshold at Yaw Control which a vehicle is likely to roll over on a Yaw Control responds to a wide range of...
  • Page 148 DRIVING - Brakes Off-Road ABS Function Switch see literature for your specific ABS that ces. However, steering ability can suf- (Optional) was provided with your vehicle. fer during its use on certain surfaces The vehicle can have a separate switch to This feature helps improve traction when due to the momentary sliding of tires.
  • Page 149 DRIVING - Brakes between 10 mph and 25 mph (16 km/h and weight (mass) of the vehicle or a neuvers could cause loss of vehicle 40 km/h), the ABS control software allows deviation between expected and control possibly resulting in an acci- short periods (0.25 seconds) of locked- actual yaw rates.
  • Page 150 DRIVING - Brakes ESC system must be disabled immediately replaced or the steering wheel is changed Operating this way prolongs the life of the by a qualified mechanic. or re-centered, the Steering Angle Sensor brakes. must be re-calibrated. WARNING WARNING WARNING Failure to disable ESC "Electronic Sta- The service brakes must be used in an...
  • Page 151 The work brake uses the service brakes to surface. hold the vehicle at a stop. In vocational PACCAR recommends not to use the situations requiring frequent stops, using engine retarder to slow down when you the park brake will deplete the air system.
  • Page 152 DRIVING - Brakes With the spring brakes set and Release the work brake. The service brake covered, turn off the transmission must not shift to Auto-Neutral Mode—Dual Operator ignition switch. The engine drive until the RPM falls below Station Pre-trip Test continues to run.

  • Page 153: Axle And Suspension

    DRIVING - Axle and Suspension sand, mud or uneven surfaces. Look range provides maximum torque for ahead and predict when the differential hauling heavy loads or traveling over rough Axle and Suspension needs to be locked. Stop the vehicle and terrain.
  • Page 154 DRIVING - Axle and Suspension axle, and wheels adjust, allowing for proper Be sure the differential is gear engagement. UNLOCKED. WARNING When the vehicle is going downhill, the Maintain your vehicle speed wheels tend to speed up, which makes (accelerator depressed) and move DO NOT shift the axle when moving gear synchronization almost impossible.
  • Page 155 DRIVING - Axle and Suspension To make the axle downshift, components such as, but not limited to, the and intended service of the vehicle. release and depress the frame rail, axles, suspension and brakes. Contact an authorized dealership if you are accelerator quickly to increase the Operation of the auxiliary axles includes unable to identify the axle creep rating of...
  • Page 156 DRIVING - Axle and Suspension the AUX axle suspension. These knobs are Calibrations can change depending on the in addition to the tag and pusher axle suspension. Contact an authorized dealer WARNING switches that control the axle position. or axle/suspension manufacturer for Adding more pressure to the AUX axle specific calibration procedures.
  • Page 157 DRIVING - Axle and Suspension • Maximum tire static loaded radius (SLR) per axle manufacturers WARNING CAUTION specifications DO NOT exceed the allowed load of DO NOT modify the air system and/or Pusher or Tag Suspension the Axle Creep ratings and always cal- control functionality on a factory instal- Calibration ibrate the lift axles with the correct...
  • Page 158 DRIVING - Axle and Suspension following the next procedure. Proper ride document the pressure-to-load ratio or height measurement and values are shown setting for future use. NOTE in the illustration and table below. These instructions are general in nature. For more specific instructions, review the Exceeding local, state, or federal pusher or tag suspension manufacturer's weight limits may result in citations.
  • Page 159 DRIVING - Axle and Suspension height specified for that Remove the alignment pin or suspension. Measure the ride dowel. height from the bottom of the frame Repeat Steps 2 through 6 above rail to the approximate centerline of for the right-hand valve on vehicles the rearmost drive axle hub: with a dual-valve system.
  • Page 160 DRIVING - Axle and Suspension What to do if an Air Spring Single Axle Unladen Ride Height -in. Ruptures (mm) WARNING If an air spring has ruptured, drive the Low Air Leaf 6.75 (171) vehicle to a safe stop off the highway to DO NOT drive the vehicle if the air investigate the problem.

  • Page 161: Trailer Operation

    DRIVING - Trailer Operation Removing the link will allow the air system JOST Fifth Wheel Indication (Optional Indicator) of the vehicle to operate normally so that Trailer Operation the vehicle can be driven to a service center. How to Lock the Kingpin Suspension Air Pressure Gauge &...
  • Page 162 DRIVING - Trailer Operation Releasing the Kingpin Remotely JOST Fifth Wheel Indication (option) NOTE (option) Do not drive tractor free of trailer. CAUTION If the tractor has a rear air suspension, deflate (dump) the Do not deflate the rear suspension be- rear suspension enough so that the fore unlocking the fifth wheel.
  • Page 163 DRIVING - Trailer Operation Releasing the Kingpin Manually Disconnect brake air and electric Suspension Dump Symbol lines from trailer, and secure lines. Unlock the fifth wheel release CAUTION handle if necessary, then unlock the fifth wheel. Do not deflate the rear suspension be- fore unlocking the fifth wheel.
  • Page 164 DRIVING - Trailer Operation in death, personal injury, equipment or CAUTION WARNING property damage. Ensure the tractor and trailer brakes DO NOT move the fifth wheel while are engaged prior to sliding the fifth WARNING the tractor-trailer is in motion. Your wheel.

  • Page 165: Engine Aftertreatment System

    DRIVING - Engine Aftertreatment System suspension (if available) to • Diesel Particulate Filter (DPF) WARNING lessen pressure on the slide. • Selective Catalytic Reduction (SCR) Suspension Dump Symbol Do not operate the vehicle un- • Diesel Exhaust Fluid (DEF) filter less the locking plungers are •...
  • Page 166 DRIVING - Engine Aftertreatment System Y53-1209-1F1 (06/2024)
  • Page 167 MAINTENANCE - Chapter 5 | MAINTENANCE New Vehicle Maintenance Schedule....................167 First Day............................167 First 50-100 mi / 80-160 km......................167 First 500 mi / 800 km.........................167 First 2,000 mi / 3,218 km........................168 First 3,000-5,000 mi / 4,800-8,000 km....................168 Maintenance Schedule........................169 At first 15,000 mi / 24,000 km or at first PM..................
  • Page 168 MAINTENANCE - Every 500,000 mi / 800,000 km / 5 years..................203 Every 750,000 mi / 1,200,000 km/ 24,000 Hours / 8 years............... 204 Lubricants............................205 Checking Oil Level..........................206 Inspect Power Steering Fluid......................207 Air System............................207 Dual Air System Function Test......................209 Air Dryer Maintenance........................
  • Page 169 MAINTENANCE - Fuel System............................246 Frame..............................248 Front Axle and Suspension....................... 249 Heater and Air Conditioner Maintenance..................251 Noise and Emission Control......................254 Rear Axle and Suspension........................256 Steering System..........................262 Driveline............................264 Tires..............................264 Wheels.............................. 268 Transmission Maintenance....................... 269 Mechanical Clutch ..........................270 Specification Reference Charts......................271 Over-the-Air (OTA) Software Updates....................

  • Page 170: New Vehicle Maintenance Schedule

    MAINTENANCE - New Vehicle Maintenance Schedule New Vehicle Maintenance First Day Schedule First Day Perform a total vehicle alignment once a body is installed on the truck chassis. Steering U-joint Pinch Bolt • Refer to Steering Shaft Bolt Torque Specifications on page 264 for maintenance instructions.

  • Page 171: First 2,000 Mi / 3,218 Km

    MAINTENANCE - First 2,000 mi / 3,218 km First 500 mi / 800 km Front Axle U-Bolt Torque • Refer to Suspension U-Bolts, Grade 8 on page 276 for maintenance instructions. Charge Air Cooler and Air Intake Pipe Clamps • Retorque fasteners.

  • Page 172: First 3,000-5,000 Mi / 4,800-8,000 Km

    MAINTENANCE - Maintenance Schedule First 3,000-5,000 mi / 4,800-8,000 km Transmission Lubrication • Refer to Transmission Operator's Manual for maintenance instructions. Axle Lubrication. • For Meritor axle, refer to Meritor Axle Lubrication on page 260 for maintenance instructions. • For Eaton/Dana axle, refer to Eaton/Dana Axle Lubrication on page 259 for maintenance instructions.
  • Page 173 MAINTENANCE - Maintenance Schedule • The vehicle is on hard, level work around fuel, do not smoke or WARNING ground. work near heaters or other fire haz- ards. Keep an approved fire extin- • The parking brake is applied. DO NOT wear loose-fitting or torn guisher near to you.

  • Page 174: At First 15,000 Mi / 24,000 Km Or At First Pm

    MAINTENANCE - At first 15,000 mi / 24,000 km or at first PM period. Please contact an authorized • The initial fill of drive axle lubricant recommended lubrication service dealership if there are questions must be changed before the end of specifications and service intervals.
  • Page 175 Rear Axle and Suspension on page 256 for maintenance instructions.) Main and Auxiliary Transmission (including Eaton Automated or PACCAR Transmission) - Main and Auxiliary Transmission and Transfer Case • Inspect for visible damage, signs of overheating, and leaks. (Refer to...
  • Page 176 MAINTENANCE - At first 15,000 mi / 24,000 km or at first PM At first 15,000 mi / 24,000 km or at first PM Auxiliary Transmission - Cotta Transfer Case TR2205 Fabco Transfer Case TC142/TC143/ TC170/ TC270 Marmon-Harrington Transfer Case MVG2000/ MVG2000SD •...
  • Page 177 MAINTENANCE - At first 15,000 mi / 24,000 km or at first PM At first 15,000 mi / 24,000 km or at first PM Steering Components - Pitman Arm Clamp Bolt and Nut • Check the torque: tighten to specified torque value as required. (Refer to Steering System on page 262 for maintenance instructions.)

  • Page 178: Component Specific Intervals

    MAINTENANCE - Component Specific Intervals At first 15,000 mi / 24,000 km or at first PM Driveshafts - Models SPL-90, 1710 and 1810 Slip Member and U-joints • Lubricate Driveshafts - Models SPL- 140/140HD/170/170HD/250/250HD Slip Members and U- joints (OFF HIGHWAY) •...
  • Page 179 Front Axle and Suspension on page 249 for maintenance instructions.) Front Axle - Vocational (PACCAR) - Steering Knuckle Spindles, Thrust Bearings, Kingpins, Drawkeys, Tie Rod Ends, Steering Stops, and Bushings (OFF-HIGHWAY) • Inspect for wear and damage and for endplay. Shim or replace as required. Weekly regardless of mileage. (Refer to...
  • Page 180 MAINTENANCE - Component Specific Intervals Component Specific Intervals Driveshafts - Models SPL-100 slip member and U-joints • Inspect. U-joint inspections should be performed every time a vehicle comes in for scheduled maintenance. Driveshafts - Models SPL-140/140HD/170/170HD/250/250HD slip members and U-joints (ON HIGHWAY and LINEHAUL) •...

  • Page 181: Every 15,000 Mi / 24,000 Km / Monthly

    MAINTENANCE - Every 15,000 mi / 24,000 km / Monthly Component Specific Intervals Air - Air dryer (ON HIGHWAY) • 360,000 miles/576,000 km (Refer to Air Dryer Maintenance on page 209 for maintenance instructions.) Engine - Basic Engine Maintenance and service interval recommendations are detailed in the engine manufacturer’s Operations and Maintenance Manual included with the vehicle.
  • Page 182 (Refer to Suspension U-Bolts, Grade 8 on page 276 for maintenance instructions.) Drive Axle - Vocational (PACCAR) - Axle Assembly • Check oil level • Visually inspect for damage or leaks.
  • Page 183 MAINTENANCE - Every 15,000 mi / 24,000 km / Monthly Every 15,000 mi / 24,000 km / Monthly Drum Brakes (All) - Slack Adjusters • Check the push rod travel and check the control arm for cracks. Adjust at reline. (Refer to Auto Slack Adjuster on page 215 for maintenance instructions.)
  • Page 184 MAINTENANCE - Every 15,000 mi / 24,000 km / Monthly Every 15,000 mi / 24,000 km / Monthly Tires and Wheels - Tires • Inspect for cuts, irregular wear, missing lugs, sidewall damage, etc. (Refer to Air Intake System on page 241 for maintenance instructions.) Tires and Wheels - Disc Wheels •...
  • Page 185 MAINTENANCE - Every 15,000 mi / 24,000 km / Monthly Every 15,000 mi / 24,000 km / Monthly Steering Components - Drag link and Tie Rod Arm Ball Sockets (OFF HIGHWAY or CITY DELIVERY) • Lubricate [EP NLGI #2 HD grease, -10 to 325°F (-23 to 163°C) range]. (Refer to Steering System on page 262 for maintenance instructions.)
  • Page 186 MAINTENANCE - Every 15,000 mi / 24,000 km / Monthly Every 15,000 mi / 24,000 km / Monthly Battery Boxes, Tool Boxes, and Steps - Battery Box and Tray (OFF-HIGHWAY) • Check the box integrity. Clean the drain tube and check for acid leaks. Check condition of all equipment mounted under the box. (Refer to Batteries on page 234 for maintenance instructions.)

  • Page 187: Every 25,000 Mi / 40,000 Km / 6 Months

    Every 25,000 mi / 40,000 km / 6 Months Every 25,000 mi / 40,000 km / 6 Months Front Axle - Linehaul (PACCAR) - Kingpin Joint Grease/Tie Rod Ends • Heavy-Duty Multipurpose Lithium Based: #1 or #2 Grade. (Refer to...
  • Page 188 • Lubricate with approved grease. (Refer to Front Axle and Suspension on page 249 for maintenance instructions.) Drive Axle - Linehaul (PACCAR) - Axle Assembly • Check oil level and inspect for leaks. • Visually inspect for damage or leaks.
  • Page 189 Check for out-of-round or oversize condition [0.080 in. (2 mm) more than the original diameter]. Replace as required. (Refer to Brake System on page 214 for maintenance instructions.) Main and Auxiliary Transmission (including Eaton Automated or PACCAR Transmission) - Main and Auxiliary Transmission and Transfer Case • Check the drain plugs for tightness. (Refer to Transmission Maintenance on page 269 for maintenance instructions.)
  • Page 190 MAINTENANCE - Every 30,000 mi / 48,000 km Every 30,000 mi / 48,000 km Clutch - Clutch Release Bearing • Lubricate. (Refer to Mechanical Clutch on page 270 for maintenance instructions.) • Inspect and adjust when necessary (no adjustment required for SOLO type clutches.) (Refer to Mechanical Clutch on page 270 for maintenance instructions.)

  • Page 191: Every 60,000 Mi / 96,000 Km / 6 Months

    Inspect engine mounts every 60,000 miles (96,000 km.) (Refer to Engine Mounting on page 244 for maintenance instructions.) Contact an authorized vehicle OEM dealership if engine mounts need servicing. Front Axle - Vocational (PACCAR) - Steer Axle Wheel Ends: Oil Bath (Adjusted) • Synthetic SAE 75W-140, SAE 50. •...
  • Page 192 Semi-Fluid Synthetic Grease: Delo SF, Mobil SCH 007. (Refer to Front Axle and Suspension on page 249 for maintenance instructions.) Front Axle - Vocational (PACCAR) - Steer Axle Grease Pack (Adjusted) • Heavy-Duty Multipurpose Lithium Base: #2 Grade. (Refer to Front Axle and Suspension on page 249 for maintenance instructions.)
  • Page 193 (Refer to Suspension U-Bolts, Grade 8 on page 276 for maintenance instructions.) Drive Axle - Linehaul (PACCAR) - Axle Assembly • Drain and replace MINERAL BASE lubricant. Drive Axle (Dana) - Axle Housing •...
  • Page 194 MAINTENANCE - Every 60,000 mi / 96,000 km / 6 Months Every 60,000 mi / 96,000 km / 6 Months Drive Axle (SISU) • Drive Axle (SISU) Oil Servicing on page 261 • Drive Axle (SISU) Inspection on page 261 •...
  • Page 195 Clean the fins (air-to-oil type) and body. Check the hose condition and for leaks: replace as required (See Cooling System Maintenance). Main and Auxiliary Transmission (including Eaton Automated or PACCAR Transmission) - Main and Auxiliary Transmission (OFF HIGHWAY) • Drain lubricant while warm. Flush each unit with clean flushing oil. (Refer to...
  • Page 196 MAINTENANCE - Every 60,000 mi / 96,000 km / 6 Months Every 60,000 mi / 96,000 km / 6 Months Auxiliary Transmission - Cotta Transfer Case TR2205 Fabco Transfer Case TC142/TC143/ TC170/ TC270 Marmon-Harrington Transfer Case MVG2000/ MVG2000SD • Initial oil change: Drain oil while warm: flush case with gear oil-compatible fluid, clean magnetic drain plug, and refill. Do not flush the case with any solvent.
  • Page 197 MAINTENANCE - Every 60,000 mi / 96,000 km / 6 Months Every 60,000 mi / 96,000 km / 6 Months Power Steering - Steering Gear • Check the lash of the sector shaft: adjust as required. (Refer to Steering System on page 262 for maintenance instructions.) •...
  • Page 198 MAINTENANCE - Every 60,000 mi / 96,000 km / 6 Months Every 60,000 mi / 96,000 km / 6 Months Fuel and Tanks - Fuel Tanks • Inspect tanks, brackets, hoses, and fittings for correct location, tightness, abrasion damage, and leaks: repair or replace as required.
  • Page 199 MAINTENANCE - Every 60,000 mi / 96,000 km / 6 Months Every 60,000 mi / 96,000 km / 6 Months Electrical and Lights - ECM Connector • Check the tightness of the ECM connector. (Refer to Electrical System on page 230 for maintenance instructions.) for maintenance instructions.) Electrical and Lights - Wheel Sensors •...

  • Page 200: Every 120,000 Mi / 192,000 Km / Annually

    Inspect for cracks and loose fasteners. Replace or tighten to the specified torque value as required. (Refer to Frame Fastener Torque Requirements on page 272 for maintenance instructions.) Front Axle - Linehaul (PACCAR) - Steer Axle Wheel Ends: Oil Bath (Adjusted) • Synthetic SAE 75W-140, SAE 50W. (Refer to Front Axle and Suspension on page 249 for maintenance instructions.)
  • Page 201 MAINTENANCE - Every 120,000 mi / 192,000 km / Annually Every 120,000 mi / 192,000 km / Annually Front Axle - Linehaul (PACCAR) - Steer Axle Wheel Ends: Oil Bath (Adjusted) • Mineral Oil SAE 75W, 75W-90, 75W-140, 80W-90, 85W-140. (Refer to...
  • Page 202 MAINTENANCE - Every 120,000 mi / 192,000 km / Annually Every 120,000 mi / 192,000 km / Annually Drive Axle (Dana) - Breather • Clean or replace. (Refer to Drive Axle - Dana on page 259 for maintenance instructions.) Drive Axle (Dana) - Lube Pump (ON HIGHWAY) •...
  • Page 203 MAINTENANCE - Every 120,000 mi / 192,000 km / Annually Every 120,000 mi / 192,000 km / Annually Drive Axle (Meritor City Delivery / OFF HIGHWAY) - Lubricant Filter • Change the filter. (Refer to Drive Axle - Meritor on page 259 for maintenance instructions.) Drive Axle (Meritor City Delivery / OFF HIGHWAY) - Input Shaft and Pinion Shaft •...
  • Page 204 MAINTENANCE - Every 120,000 mi / 192,000 km / Annually Every 120,000 mi / 192,000 km / Annually Hub, Drum, and Hubcap - Hubs (non-LMS) with Standard Seals • Clean the components and check for excessive wear or damage. Change the oil and seal. (Refer to Wheels on page 268 for maintenance instructions.)
  • Page 205 MAINTENANCE - Every 240,000 mi / 384,000 km Every 120,000 mi / 192,000 km / Annually Heating and Air Conditioning - Heater and Air Conditioner • Full operational and diagnostic check. (Refer to Heater and Air Conditioner Maintenance on page 251 for maintenance instructions.) Heating and Air Conditioning - Recirculation Cab Air Filter (ON HIGHWAY) •...

  • Page 206: Every 240,000 Mi / 384,000 Km

    MAINTENANCE - Every 300,000 mi / 480,000 km / 6,750 Hours / 3 Years Every 240,000 mi / 384,000 km Drive Axle - Vocational (PACCAR) - Axle Assembly • Drain and replace SYNTHETIC BASE lubricant. Hub, Drum, and Hubcap - Hubs (non-LMS) with Outrunner Seals •...

  • Page 207: Every 500,000 Mi / 800,000 Km / 5 Years

    MAINTENANCE - Every 750,000 mi / 1,200,000 km/ 24,000 Hours / 8 years Every 500,000 mi / 800,000 km / 5 years Front Axle - Linehaul (PACCAR) - Steer Axle Wheel Ends: Oil Bath LMS • Synthetic SAE 75W-90. (Refer to Front Axle and Suspension on page 249 for maintenance instructions.)

  • Page 208: Lubricants

    MAINTENANCE - Lubricants Every 750,000 mi / 1,200,000 km/ 24,000 Hours / 8 years Main and Auxiliary Transmission (including Eaton Automated or PACCAR Transmission) - Main and Auxiliary Transmission (ON HIGHWAY) • Drain lubricant while warm. Flush each unit with clean flushing oil. (Refer to...

  • Page 209: Checking Oil Level

    MAINTENANCE - Checking Oil Level Transmissions, Axles, and Hubs WARNING NOTE See the manufacturer's operator's manual for recommended lubrication specifications and maintenance intervals. Exhaust fumes from the engine con- Keep the engine exhaust system and tain carbon monoxide, a colorless and the vehicle's cab ventilation system odorless gas.

  • Page 210: Inspect Power Steering Fluid

    MAINTENANCE - Inspect Power Steering Fluid discoloration, or burnt smell; this section, should be performed by correct source of such problems Inspect Power Steering an authorized dealer, only. Failure to before replacing fluid and filter. comply may result in property damage, Fluid If incompatible (insoluble) fluids are mixed personal injury, or death.
  • Page 211 MAINTENANCE - Air System components contain powerful springs, led could cause the air system to not WARNING and injury can result if not properly dis- perform correctly unless the full air assembled. Use only proper tools, and system design is reviewed and modifi- Never connect or disconnect a hose or observe all precautions pertaining to cations are made to comply with Fed-...

  • Page 212: Daily Checks

    MAINTENANCE - Dual Air System Function Test Twice a Year into the chambers where it is used to apply your truck and trailer brakes. That is why, Air Dryer Maintenance • Maintain the air compressor to when you push down on your brake pedal, prevent excessive oil bypass.
  • Page 213 MAINTENANCE - Air Dryer Maintenance accumulation and should be considered perform correctly unless the full air before replacing the desiccant cartridge. NOTE system design is reviewed and modifi- • Air usage is exceptionally high and cations are made to comply with Fed- not normal for a highway vehicle.

  • Page 214: Air Tanks

    MAINTENANCE - Air Tanks your vehicle’s air system to maintain The air tanks must be drained daily. enter the air lines and valves. This compliance with FMVSS 121. Operate air devices daily to circulate could cause corrosion or blockage, lubricants within the unit. compromising brake system safety, Air Dryer Oil-coalescing Cartridge which could lead to an accident.
  • Page 215 MAINTENANCE - Air Gauges and Air Leaks The Primary gauge indicates pressure in • Turn red How to Check the Compressed Air the rear braking system: System for Leaks • Indicate below 65 psi (448 kPa) Or the Low Air System Pressure Alarm Primary Air Pressure Gauge •...

  • Page 216: Air Compressor

    MAINTENANCE - Air Compressor To check for Air System leaks Release the service brakes, and conjunction with the unloading mechanism observe the rate of air pressure in the compressor cylinder block to start Start the engine if not already drop. This rate should not exceed and stop compression of air.

  • Page 217: Brake System

    MAINTENANCE - Brake System replace the compressor cylinder ing operations: tractor or truck, and head. Also, check compressor WARNING complies with the respective portions discharge line for carbon, and of FMVSS 121. A tractor shall not be clean or replace the discharge line DO NOT use brake linings with a thick- operated or configured as a truck, nor if necessary.
  • Page 218 MAINTENANCE - Brake System Inspect Disc Brake Caliper for • Tire size Brake rotor Running Clearance • Drum brakes Inspection notches Regularly inspect caliper for Running • Cam radius Clearance: How to inspect brake pads on disc • Wedge angle Stop the vehicle on level ground brakes •...

  • Page 219: Cab Maintenance

    MAINTENANCE - Cab Maintenance Start the vehicle and get the air system up to normal operating Cab Maintenance pressure. Do not apply the parking brake. Cab exterior, interior, frame, and engine Apply pressure to the brake pedal compartment components need and measure the distance the air maintenance to ensure longevity and safe chamber pushrod traveled.

  • Page 220: Vehicle Cleaning

    MAINTENANCE - Cab Maintenance though they have been provided with death, personal injury, equipment corrosion protection. WARNING damage, or property damage. At least every spring, flush these materials from the entire vehicle, including the Vehicle Cleaning DO NOT use gasoline, kerosene, underbody and engine compartment, with naphtha, nail polish remover, or other plain water using light water pressure.
  • Page 221 MAINTENANCE - Cab Maintenance deposits of road grime. To prevent • Never use steel wool when spotting, wipe aluminum surfaces cleaning stainless steel. Minute CAUTION dry after washing. particles of the steel wool can become embedded in the surface • Under corrosive conditions, such Do not direct high pressure water onto of the stainless steel part and...
  • Page 222 MAINTENANCE - Cab Maintenance Cleaning Interior Vinyl and soap and lukewarm water, then dry How to Wash the Exterior of the Upholstery thoroughly. Vehicle • If the stain does not come out use Your dealer has a number of vehicle care an upholstery shampoo specially NOTE products and can advise you on which...
  • Page 223 MAINTENANCE - Cab Maintenance all times. Failure to comply may result locks from freezing in the winter by in equipment damage. WARNING squirting glycerin or lock deicer into the lock cylinders. If water should seep DO NOT clean the underside of chas- in, remove it with compressed air.

  • Page 224: Maintenance

    Wipe everything dry with a chamois meets or exceeds all ASTM D6210 and to avoid water spots. To prevent Hose dirt and grime from the entire Caterpillar EC-1 requirements. PACCAR water spotting, dry off the cosmetic chassis. recommends only using a 50/50 mixture of...
  • Page 225 ISX and PX engines, and MAT74002 for protection, which is determined by the cylinder liners. This information is PACCAR MX-11 and MX-13 engine glycol concentration. Use a glycol found in the engine manufacturers requirements. Maintaining coolant refractometer to determine glycol level.

  • Page 226: Checking Coolant Level

    Coolant Level on page 225. CAUTION Condition CAUTION The use of non-genuine PACCAR Perform a visual inspection of the coolant. coolant filters may cause severe en- It should have no cloudiness or floating When adding coolant, avoid mixing dif- gine damage.
  • Page 227 MAINTENANCE - Cooling System Maintenance Cooling System Sealing Additives • Damage the water pump seal and Soluble Oils WARNING • Damage heat transfer surfaces • Damage seals and hoses Removing the fill cap on a hot engine • Corrode brass and copper can cause scalding coolant to spray Failure to comply may result in equip- out and burn you badly.
  • Page 228 MAINTENANCE - Cooling System Maintenance escape. You could be badly burned. Failure to comply may result in death or personal injury. NOTE If frequent topping off is necessary and there are no visible signs of coolant leaks when the engine is cold, check for leaks with the engine operating at normal temperature.
  • Page 229 MAINTENANCE - Cooling System Maintenance engine coolant pipe, open it before Operate the engine throttle until the filling the surge tank. operating temperature stabilizes CAUTION (when the thermostat opens). Close any open coolant drain valves in the lower engine coolant Fill the surge tank as necessary to Do not overfill the cooling system.

  • Page 230: Safety Restraint System - Inspection

    PACCAR Serv- or the accident’s severity. Visible and ice dealer. invisible damage or wear can prevent safety restraints from protecting the wearer.

  • Page 231: Inspection Guidelines

    MAINTENANCE - Safety Restraint System - Inspection Web cut or frayed or extremely • Environmental conditions, such as worn at latch area dirt and ultraviolet rays from the WARNING sun, will reduce the life of the seat Web cut or frayed at D-loop web belt system.

  • Page 232: Windshield Wiper/Washer

    Once the need for replacement of the seat belt has been determined, be certain it is How to Refill the Washer Fluid Inspect the retractor web storage only replaced with an authorized PACCAR device, which is mounted on the Reservoir Parts replacement seat belt. If the floor of the vehicle, for damage.

  • Page 233: Electrical System

    MAINTENANCE - Electrical System Drivers side (LH) on top of the For situations where the battery will be you to be injured, as well as electrical radiator - 2.0 Gallons (7.6 disconnected (for example, service or system failure and damage. Liters) capacity maintenance of the vehicle), please wait 20 minutes before disconnecting battery...
  • Page 234 MAINTENANCE - Electrical System amber (or red) LVD telltale . The ing Association. To review the recom- LVD notification will turn red and WARNING mended practice, see TMC RP-136. will be accompanied by a continuous audible warning. DO NOT use the Spare Battery A and NOTE B circuits or other circuits that are con- trolled by the LVD to power electronic...
  • Page 235 MAINTENANCE - Electrical System Y53-1209-1F1 (06/2024)
  • Page 236 MAINTENANCE - Electrical System Altering the Electrical System ure to comply may result in equipment Refer to a wiring diagram for your chassis damage. CAUTION before adding electrical options to ensure proper electrical system performance. Connecting to an unapproved CAN NOTE network may trigger CAN fault codes.
  • Page 237 MAINTENANCE - Electrical System Batteries overheating of the battery, warped in damage to the vehicle and/or batter- plates, and the evaporation of Regular attention to the charging system ies. electrolyte. helps prolong the service life of the • Undercharge: the voltage regulator batteries.

  • Page 238: Battery Charging

    MAINTENANCE - Electrical System Battery Charging outdoors or in a fully open garage. • Look for any signs of damage No open flames, including pilot • Battery terminals must not be lights can be present. Allow coated with improper grease. Use WARNING explosive gases generated during a commercially available,...

  • Page 239: Removing Batteries

    MAINTENANCE - Electrical System NOTE Removing Batteries NOTE After accessing the batteries, follow these Always dispose of automotive batter- steps to remove them from the vehicle. Always dispose of automotive batter- ies in a safe and responsible manner. ies in a safe and responsible manner. Contact your authorized dealer for dis- Contact your authorized dealer for dis- posal standards.
  • Page 240 MAINTENANCE - Electrical System Slow Battery Charging more than 10 percent of its rated capacity. NOTE After charging, turn OFF charger WARNING and disconnect charger cables. Some vehicles may have an ultra ca- pacitor mounted in the battery box. Charger cables must be connected Alternator These devices have a similar shape to positive to positive (+ to +) and nega-...

  • Page 241: Engine Maintenance

    MAINTENANCE - Engine Maintenance • DO NOT reverse the cables of the monoxide to enter the cab, resulting in alternator, starter motor, or battery. NOTE personal injury or death. • DO NOT polarize the alternator. The alternator should not be Keep the engine exhaust system and polarized like a generator.
  • Page 242 MAINTENANCE - Engine Maintenance Twist the dipstick handle to unlock it, then pull the dipstick out of the Engine Oil Dip Stick Markings WARNING holder. Wipe the dipstick clean with a lint- DO NOT change hot engine oil as you free cloth.

  • Page 243: Topping Up The Engine Oil

    MAINTENANCE - Engine Maintenance Topping Up the Engine Oil After topping up, wait 1 minute and an example of the rotation direction check the oil level again. to release the tensioner. Reinstall the oil fill cap and twist to lock it in place. Install Engine Belt You can extend the reliability and service life of your vehicle's drive belts with proper...
  • Page 244 MAINTENANCE - Engine Maintenance Engine Fan growl when the engine is at operating temperature and the fan clutch is engaged. If noise is WARNING detected, have the fan bearings inspected by an authorized DO NOT work on or near the fan with dealership.

  • Page 245: Lubricating System

    MAINTENANCE - Engine Maintenance around inspection, carefully check all Replace Engine Air Filter when you will be running the engine. tubing, elbows, clamps, supports, and If the vehicle has under hood air intake Failure to comply may result in death, fasteners for condition and tightness.

  • Page 246: Air Cleaners

    MAINTENANCE - Engine Maintenance to not push any contaminant into sult in personal injury or damage to ve- the engine inlet. hicle components. Visually inspect the new filter prior to installation. There should not be any damage to the filter media or CAUTION gaskets, such as dents, dings, cracks, or holes.

  • Page 247: Exterior Lighting

    Bulbs should be replaced with a LED replacement light sources are not motor mount. Replace as premium brand. Bulbs with the long approved for use in PACCAR head- necessary. life designation "LL" are lamps Using an incorrect bulb type recommended, but not required.
  • Page 248 MAINTENANCE - Exterior Lighting • When replacing a bulb, do not • Replace your headlamp if the lens see the road and other drivers. Failure touch the globe with your fingers. is so worn that it is not completely to comply may result in death, person- Oil from human skin can focus the clear.

  • Page 249: Final Checks

    MAINTENANCE - Fuel System Final Checks • 3/8" diameter rubber hose explosion. A mixture of gasoline or al- (optional) After everything is reconnected, cohol with diesel fuel increases this Perform with engine OFF. Cover any turn on your headlights and check risk of explosion.
  • Page 250 • Bowl wrench RK61680 Install new upper and lower • 1" wrench O-rings. • New PACCAR primary fuel filter Install new fuel filter element. element designed for this Reconnect clip-type electrical application connections to bowl bottom: • 2 new O-rings Reconnect water in fuel (WIF) Start procedure with engine off.

  • Page 251: Frame

    MAINTENANCE - Frame Emergency Welding weld point as possible. This ensures maximum weld current Frame In an emergency, a temporary repair may and minimum risk to damage of be performed. Observe the following electrical components on the precautions to protect electronic systems vehicle.

  • Page 252: Front Axle And Suspension

    MAINTENANCE - Front Axle and Suspension Kingpin Lubrication • All grease fittings (especially those Tighten all frame fasteners with a torque which grease the top surface of the wrench. See Frame Fastener Torque fifth wheel). Requirements on page 272. Sliding Fifth Wheels Fifth Wheel Bi-Annual Maintenance Lubricate bearing surface of support bracket through the grease fittings on the...

  • Page 253: Suspension Lubrication

    MAINTENANCE - Front Axle and Suspension Suspension Lubrication Inspection your vehicle to an authorized dealer familiar with aligning wheels on your For all vehicles, mandatory maintenance vehicle. procedures include retightening all U-bolts and inspecting the suspension for loose, Suspension U-Bolts damaged, or abnormally worn fasteners.

  • Page 254: Heater And Air Conditioner Maintenance

    DO NOT operate the vehicle if the sus- rate from the vehicle and cause a seri- ventilation system, proceed as follows: pension U-bolts are not properly tight- ous accident. Use only PACCAR re- • Keep the inlet grille at the base of ened. Improperly tightened (loose) placement parts.

  • Page 255: Air Conditioner

    MAINTENANCE - Heater and Air Conditioner Maintenance Heater and recharging the air conditioning WARNING system must be conducted by a quali- CAUTION fied technician in an approved facility. Air conditioning refrigerant can be haz- Failure to comply may result in death, ardous to your health.
  • Page 256 MAINTENANCE - Heater and Air Conditioner Maintenance • Check the engine belt for condition How to Replace Air Conditioner and proper tension. Filter for Non-Right-Hand-Stand • Check all hoses for kinks, Applications deterioration, chafing, and leaks. This procedure is for left hand steer, dual Adjust kinked or chafing hoses to seat dual steer, and right hand steer cab eliminate restrictions and prevent...

  • Page 257: Noise And Emission Control

    MAINTENANCE - Noise and Emission Control Air Conditioner Filter for Right filter will come off once the brackets are removed. Hand Stand Up Replacement Noise and Emission This procedure is for right hand stand up Control cab configurations. The fresh air filter for the cab HVAC is located behind the There are specific components on the passenger seat and at the top of the air...

  • Page 258: Tampering With Noise Control System

    MAINTENANCE - Noise and Emission Control noise emissions to exceed Federal Inspecting Noise and Emission Engine Removing or rendering engine speed standards, are covered by this warranty for governor inoperative so as to allow engine Components speed to exceed manufacturer's the life of the vehicle.

  • Page 259: Rear Axle And Suspension

    MAINTENANCE - Rear Axle and Suspension gasket; replace gasket if at flanges and mounting brackets necessary. for tightness. CAUTION • Check cap screws for tightness, Diesel Particulate Filter (DPF) including those at the flanges. • Check DPF, clamps, and mounting Air leaks cause excessive noise and Refer to the engine manufacturer's brackets.

  • Page 260: Visual Inspection

    MAINTENANCE - Rear Axle and Suspension Visual Inspection WARNING WARNING For all vehicles, mandatory maintenance procedures include retightening of U-bolts and complete inspection. Even with proper Prior to performing maintenance, do Failure to maintain the specified torque maintenance, however, many factors affect the following to prevent uncontrolled values or to replace worn parts can the service life of springs and suspension...

  • Page 261: Rear Suspension Fasteners

    DO NOT operate the vehicle if the sus- service and every 60,000 miles (mi) ous accident. Use only PACCAR re- pension U-bolts are not properly tight- (96,000 km) after. Torque placement parts. Failure to comply ened.

  • Page 262: Eaton/Dana Axle Lubrication

    MAINTENANCE - Rear Axle and Suspension Drive Axle - Dana flushes out break-in contaminants • Change the lubricant within the first that might otherwise cause 5,000 miles (8,000 km) of operation Drain the lubricant while warm. Flush each premature wear. after a carrier head replacement, unit with clean flushing oil.

  • Page 263: Meritor Axle Lubrication

    MAINTENANCE - Rear Axle and Suspension Meritor Axle Lubrication Under Meritor’s Advanced Lube Rear Drive Axle program, the axles listed below are exempt from an initial lubricant change: NOTE Axles utilized in 100% off-highway use are not eligible for Meritor's Advanced Lube Rear Drive Axle program.

  • Page 264: Rear Axle Alignment

    MAINTENANCE - Rear Axle and Suspension Application Type Of Lubricant Mileage Interval On Highway Synthetic 240,000 mi. (384,000 km) Synthetic with Pump and Filter 500,000 mi. (800,000 km) Mineral Base 120,000 mi. (192,000 km) City Delivery Synthetic 120,000 mi. (192,000 km) Synthetic with Pump and Filter 240,000 mi.

  • Page 265: Steering System

    MAINTENANCE - Steering System Suspension alignment should be checked in a serious accident. Visually check personal injury, equipment damage, or when any one of the following conditions the steering gear and components. property damage. exist: Frequent checks are important, espe- •...

  • Page 266: Power Steering Fluid

    MAINTENANCE - Steering System the vehicle is still possible but it will require WARM, the fluid should NOT additives. Incompatible fluids may much greater effort. exceed the Maximum level cause damage to power steering sys- Visually check the following parts: indicator and should generally tem components.

  • Page 267: Driveline

    MAINTENANCE - Driveline on the engine and turning the steering wheel full right and then Pitman Arm Clamp Bolt Driveline full left. Add fluid when necessary as air bleeds out of the system. See the driveshaft manufacturer's operator Fastener Size Torque Spec.
  • Page 268 MAINTENANCE - Tires Checking Inflation Pressure is essential to the safe, efficient operation deflate a warm tire to the specified of your vehicle. Regular, frequent pressure. Low pressure is a tire’s worst enemy. inspection and the right care will give you Underinflation allows tires to flex the assurance of safe and reliable tire improperly, causing high temperatures to...

  • Page 269: Matching Tires

    MAINTENANCE - Tires Effects of Load and Pressure on WARNING WARNING Tire Life DO NOT install a damaged wheel as- Ensure all tires are inflated correctly sembly, and DO NOT install or inflate according to the manufacturer's rec- Vehicle Tire Expected a tire that has been damaged or has ommendations.

  • Page 270: Replacing Tires

    MAINTENANCE - Tires in. of tread depth remains in any major groove. Check at three places equally WARNING NOTE spaced around the tire. DO NOT mismatch or mix tires of dif- To prolong your tires' life, have their WARNING ferent design such as steel belted radi- radial and lateral run-out checked at als and bias ply tires, etc.

  • Page 271: Wheels

    MAINTENANCE - Wheels Greenhouse Gas Certified Tires be clean and dry. Do not lubricate wheel for disc brake applications. If it ever nuts or studs. becomes necessary to replace an original equipment wheel, the replacement wheel NOTE must be the same brand and size as the WARNING take-off wheel.

  • Page 272: Disc Wheels

    The end of the wheel wrench must be which may result in death, personal in- Vehicles configured with the PACCAR smooth. Burrs on the end of the wrench jury, equipment damage, or property TX-12/TX-18 or Eaton Endurant can tear grooves in the disc.

  • Page 273: Mechanical Clutch

    MAINTENANCE - Mechanical Clutch Change oil regularly. Use the correct grade and type of CAUTION oil. Buy oil from a reputable dealer. Replace the oil-coalescing desiccant air dryer cartridge annually, regardless Lubrication Change and Inspection of mileage. Use only an oil-coalescing Off-Highway Use desiccant cartridge as a replacement.

  • Page 274: Clutch Linkage

    MAINTENANCE - Specification Reference Charts Clutch Linkage pressure. During free pedal the release yoke in the transmission moves until its Specification Reference Have your authorized dealer service the bearing pads contact the release bearing. clutch according to the clutch Charts This movement of the release yoke is manufacturer’s service guidelines.
  • Page 275 MAINTENANCE - Specification Reference Charts Frame Fastener Torque Fastener if the nut is held and torque is Fastener lb•ft (N•m) Requirements Name applied to the bolt. Incorrectly tightening the fasteners may 1.0 NF Refer to U-bolt result in clamp load or frame failures. CAUTION section on Failure to comply may result in equip-...
  • Page 276 MAINTENANCE - Specification Reference Charts Component Lubrication Index Application Type Steering Column Multipurpose chassis grease Alternator Bearing High temperature ball bearing grease. Chevron SRI Mobile Grease HP, Texaco Multifax 2 (1) Fan Hub High temperature ball bearing grease. Chevron SRI Mobile Grease HP, Texaco Multifax 2 (1) Power Steering Reservoir MD3 or MERCON®-approved automatic transmission fluid...
  • Page 277 MAINTENANCE - Specification Reference Charts Application Type Water Pump High temperature ball bearing grease. Chevron SRI Mobile Grease HP, Texaco Multifax 2 (1) Suspension Fittings (other than threaded pins and bushings) Extreme Pressure Lubricant (Lithium 12-hydroxystearate base NLGI 2) Steering Axle: Grease Fittings on Steering Arm; Tie Rod Ends; Extreme Pressure Lubricant (Lithium 12-hydroxystearate base Drag Link;...

  • Page 278: Noise Control System - Maintenance Log

    MAINTENANCE - Specification Reference Charts Noise Control System - maintenance checks. Use the following log sheet and retain copies of documents Maintenance Log regarding maintenance services performed To ensure your vehicle's noise control and parts replaced on the vehicle. requirements are maintained, record Component Recom- Date &...
  • Page 279 U-bolts on Tighten all U-bolts with a torque wrench. your vehicle. Torque requirements in the table below apply to PACCAR proprietary suspensions using Protect Torque/TEXO coated U-bolts, only. For all other suspensions, follow the manufacturer's recommended torque values.
  • Page 280 434) in.) bolt) Tandem M22 x 375–475 (508– 260-290 353-393 Low Air 644) For all non-PACCAR suspension Leaf systems, see the manufacturer’s 370-415 502-563 operator’s manual for torque Air Leaf (U- 1.0 -in. 450–550 (610– specifications. For all non-PACCAR suspension...

  • Page 281: Light Bulb Specifications

    MAINTENANCE - Specification Reference Charts Application Type For normal temperatures Automatic Transmission Fluid (ATF) Type E or F or Dexron® III For cold temperatures of -22ºF (-30ºC) and above ATF Type A For extremely cold temperatures between -22ºF (-30ºC) and -40ºF ATF Type B (-40ºC) Light Bulb Specifications...

  • Page 282: Over-The-Air (Ota) Software Updates

    MAINTENANCE - Over-the-Air (OTA) Software Updates Torque for Two Piece Flanged Cap Nuts Wheel and Nut Configuration Stud Size lb-ft N•m Hub-Piloted Disc-Type Wheel M22-1.5 450-500 610-680 w/Two Piece Flanged Cap Nuts: Steel or Aluminum Wheel PHP-10; Budd Uni-Mount-10; WDH-8 Stud Backnuts (when used) 3/4-16 175-200...
  • Page 283 MAINTENANCE - Over-the-Air (OTA) Software Updates (See Roadside Assistance on page CAUTION 31). • If unsuccessful, "System Update Follow all instructions to prevent the Failed" appears AND the system vehicle from becoming inoperable. automatically starts restoring the Avoid high electrical power draw by previous software version.
  • Page 284 MAINTENANCE - Over-the-Air (OTA) Software Updates Y53-1209-1F1 (06/2024)

  • Page 285: Information

    INFORMATION - Chapter 6 | INFORMATION Consumer Information........................283 Vehicle Identification Labels......................283 Clean Idle............................286 Greenhouse Gas Certified Configuration..................287 Vehicle Emissions Limited Express Warranty................... 290 Telematics Control Unit FCC Information..................293 Y53-1209-1F1 (06/2024)

  • Page 286: Consumer Information

    INFORMATION - Consumer Information NHTSA cannot get involved in individual Transport Canada, ASFAD Place de Ville problems between you, the dealer, and the Tower C 330 Sparks St. Ottawa, ON K1A Consumer Information vehicle manufacturer. Contacting NHTSA is possible through telephone, written mail, For additional road safety information, visit How To Order Replacement Parts and email.

  • Page 287: Chassis Number

    INFORMATION - Vehicle Identification Labels • Back of cab, left-hand rear panel, edge or on the driver’s side door frame. It lower edge contains the following information: • Tire, Rim, and Weight Rating Data • GVWR - Gross Vehicle Weight label (truck) Rating •...

  • Page 288: Federal Safety Standard Certification Label

    INFORMATION - Vehicle Identification Labels Federal Safety Standard includes the weight of the empty vehi- Certification Label WARNING cle, loading platform, occupants, fuel, The NHTSA regulations require a label and any load. certifying compliance with Federal Safety DO NOT exceed the specified load rat- Standards, for United States and U.S.

  • Page 289: Clean Idle

    Usually located on the top side of the differential carrier. The following information is either stamped, or marked with a metal tag: Model No., Production Assembly No., Serial No., Gear Ratio, and Part Number. A PACCAR engine label looks like one of Clean Idle the images below.

  • Page 290: Greenhouse Gas Certified Configuration

    During these 30 seconds, standards ment or PACCAR’s approval may be a it is possible to reset the idle time by violation of the Clean Air Act and sub- Regulatory Describes the pressing on the accelerator pedal.
  • Page 291 INFORMATION - Greenhouse Gas Certified Configuration Vehicle speed Vehicle includes Emission Emission Control limiter innovative (off- Controls Descriptions cycle) technology VSLS Soft-top vehicle Aerodynamic roof speed limiter Automatic tire fairing inflation system VSLE Expiring vehicle ARFR Adjustable height speed limiter TPMS Tire pressure aerodynamic roof...
  • Page 292 INFORMATION - Greenhouse Gas Certified Configuration GHG Regulated Powertrain Wheel-Related Wheel-related automatic engine Parameters Not On the Emission Weight Reduction weight reduction shutdown (AES), Control Information Label benefits may be neutral idle, start- included in this stop systems, vehicle's certified intelligent controls Powertrain Regulated...

  • Page 293: Vehicle Emissions Limited Express Warranty

    This Vehicle Emissions Limited Express must be of an equal or larger loaded ment or PACCAR’s approval may be a Warranty relating to original equipment drive tire size and an equal or lower violation of the Clean Air Act and sub- tires begins on the date of delivery of the rolling resistance level (TRRL or Crr).

  • Page 294: Your Warranty Rights And Obligations

    If there are any first purchaser or first lessee. Where a the vehicle and its tires. PACCAR does not questions regarding these warranty rights Warrantable Condition exists, PACCAR will warrant wear and tear of the tires.

  • Page 295: Replacement Parts

    INFORMATION - Vehicle Emissions Limited Express Warranty costs such as: communication expenses, are not equivalent to the PACCAR engine new or genuine approved rebuilt parts and meals, lodging incurred by Owner or or OEM vehicle manufacturer’s original assemblies will utilize replacement parts...

  • Page 296: Telematics Control Unit Fcc Information

    COMMUNICATION EXPENSES; unauthorized modifications to the vehicle replaced during Scheduled Maintenance of LODGING AND/OR MEAL EXPENSES; and its components. PACCAR is also not the engine as specified in PACCAR FINES; APPLICABLE TAXES OR responsible for failures caused by incorrect Operator’s Manuals. THIS WARRANTY, BUSINESS COSTS OR LOSSES;...
  • Page 297 INFORMATION - Telematics Control Unit FCC Information Radiofrequency radiation exposure designed to provide reasonable pro- Information: NOTE tection against harmful interference in This equipment complies with FCC a residential installation. This equip- radiation exposure limits set forth for an This device complies with Part 15 of the ment generates, uses and can radiate uncontrolled environment.

  • Page 298: Canada-Specific Information

    INFORMATION - Telematics Control Unit FCC Information Canada-specific Information This equipment complies with Canada radiation exposure limits set forth for an Bluetooth and WiFi Frequencies uncontrolled environment. Install and operate this equipment with minimum Model Bluetooth 2402 - 2480 MHz distance of 8 inches (20 cm) between the TCU2 NA IP30 25847-...
  • Page 299 Index Index Alternator Anti-Theft Antilock Brake System 67, Accessories Applies To At first 15,000 mi / 24,000 km or at first PM Left Hand Accessories Overhead Auto Slack Adjuster Right Hand Overhead Auto-Neutral Mode—Single Operator Station Pre-trip Test Active Warnings Automatic Slack Adjuster Stroke Specification Adaptive Cruise Control Automatic Traction Control...
  • Page 300 ELST, See Exterior Lights Self-Test Cruise ControlStandard Emissions Custom Emissions, High Exhaust System Temperature Custom Setup Emissions, Malfunction Indicator Lamp Custom View, See Custom Engine Aftertreatment System Engine Air Filter Engine block heater Engine Brake Column Mounted Transmission Control Engine Brake PACCAR Transmission...

  • Page 301: High Beams

    Index Engine Cooling Recommendations and Specifications Frame Engine Fan Frame Fastener Torque Requirements Engine Fan Override Free Travel Engine is overheating Front axle and Suspension Engine Maintenance Front Suspension U-Bolts, Grade 8 Engine Mounting Fuel Filter Restricton Engine Oil Temperature Fuel System Engine Wait-To-Start Lamp Fuel Tank...

  • Page 302: Low Beams

    Index High Beams (continued) Flash-to-Warn How to turn on Komfort Latch Horn Horn honking, Aftertreatment Warning How to Add Coolant to the Cooling System How to Check the Compressed Air System for Leaks How to Enter the Passcode Lamps, Headlamps Flashing, Aftertreatment Warning How to inspect brake pads on disc brakes Lane Departure Warning (LDW) Disable How to Manually Control the Cab Air Conditioner...

  • Page 303: Rear Suspension

    Index Meritor Axle Lubrication Radio, See Stereo Radio Rear Axle Alignment Rear Axle and Suspension Rear Axle Lubrication Neutral-Off Mode Pre-trip Test Rear Suspension New Vehicle Maintenance Schedule New Vehicle Maintenance Schedule: First 2,000 mi / 3,218 km Controls New Vehicle Maintenance Schedule: First 50-100 mi / 80-160 km LED Indications New Vehicle Maintenance Schedule: First 500 mi / 800 km Lowering...

  • Page 304: Warning Lights

    Index Seat Trip Information, See Trip Info Truck Info, See Truck Information Lap/Shoulder Belt Truck Information Safety Restraint Belts Turbocharger with Air Suspension (Optional) Turn Signal Seat Belt Fasten Turn Signal, Left Setting The Work Brake Turn Signal, Right Settings Sliding Fifth Wheels Sliding the Fifth Wheel, See How to Slide the Fifth Wheel Slow Battery Charging...
  • Page 305 Index Wheel Cap Nut Torque Specifications Wheels Windshield Washer Windshield Wiper Windshield Wiper/Washer Windshield Wipers Work Brake Yaw Control Yaw Control Example Yaw Stability...
  • Page 306 Index...
  • Page 307 Your Servicing Dealer Is: Need Help? Give Us A Call - 24 Hours a Day 1-800-KW-ASSIST 1-800-592-7747 KENWORTH TRUCK COMPANY P.O. Box 1000 Kirkland, Washington 98083-1000 (425) 828-5000 CANADIAN KENWORTH COMPANY 6711 Mississauga Road N. Mississauga, Ontario L5N 4J8 (905) 858-7000 ©...

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