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Summary of Contents for Paccar 12-Speed
- Page 1 Operator s Manual ’ Operator’s Manual 12 Speed...
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Page 3: Safety
Contents Safety........Driving........Maintenance........Information........ - Page 5 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.
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Page 6: Table Of Contents
SAFETY - Chapter 1 | SAFETY In this Chapter: Using this Manual..........................5 Safety Alerts............................5 Illustrations............................6 General Safety Instructions........................7 Warnings and Cautions.........................9 A Special Word About Repairs......................9 Y53-1272-1B1 (08/17) -
Page 7: Using This Manual
SAFETY - Using this Manual indicate that in a cross-reference like this: (See Safety Alerts on page 5). You won’t Using this Manual NOTE have to go searching for more information. Finally you’ll find a helpful Subject Index. After you’ve read this manual, it should Please take the time to get acquainted with It’s in the back of the manual and be stored in the cab for convenient ref-... -
Page 8: Illustrations
SAFETY - Illustrations “CAUTION”, or “NOTE”. Please DO NOT The safety message following this symbol ignore any of these alerts. and signal word provides a caution against NOTE operating procedures which could cause Warnings equipment or property damage. The alert Pumping the accelerator will not assist will identify the hazard, how to avoid it, and in starting the engine. -
Page 9: General Safety Instructions
SAFETY - General Safety Instructions Standards applicable at the time of • Before beginning any repair, manufacture. Even with these safety disconnect the battery (negative [-] General Safety features, continued safe and reliable cable) and discharge any Instructions operation depends greatly upon regular capacitors. - Page 10 Use only genuine relieve all pressure in the air, oil, avoid prolonged or repeated replacement parts from PACCAR. fuel, and cooling systems. Remain contact with skin. DO NOT • Always use the same fastener part alert for possible pressure when swallow.
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Page 11: Warnings And Cautions
SAFETY - Warnings and Cautions California Proposition 65 Warning consuming alcohol or drugs that and lead compounds, chemicals can impair your functioning. known to the State of California to • Diesel engine exhaust and some of cause cancer and reproductive •... - Page 12 SAFETY - A Special Word About Repairs you back on the road quickly—and keep dealer from whom you purchased your you there. vehicle. WARNING Your vehicle is a complex machine. Anyone attempting repairs on it needs Modifying your vehicle can make it un- good mechanical training and the proper safe.
- Page 13 SAFETY - A Special Word About Repairs Y53-1272-1B1 (08/17)
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Page 14: Driving
DRIVING - Chapter 2 | DRIVING In this Chapter: Controls on the Right Hand of the Steering Column................13 Drive Neutral Reverse Selector......................13 Up or Down Shifting..........................15 Engine Brake Operation for a Vehicle with Automated Transmission..........17 Using the Manual - Automatic Button....................18 Start-Up and Power Down........................ -
Page 15: Controls On The Right Hand Of The Steering Column
Hand of the Steering Related concepts Column Related tasks This vehicle may be equiped with the PACCAR Transmission. The lever on the Drive Neutral Reverse right hand side of the steering column will Selector operate the transmission functions in addition to operating the engine brake. - Page 16 DRIVING - Drive Neutral Reverse Selector Reverse Mode causing damage to the transmission. • Reverse mode selects the default NOTE Reverse gear. NOTE Selector (the transmission) must be in N (Neutral) to start the truck. NOTE If the driver attempts to select a non- neutral mode without depressing the If the driver attempts to select a non- service brakes the transmission will not...
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Page 17: Up Or Down Shifting
DRIVING - Up or Down Shifting For Kenworth Vehicle with Shift Assist Up or Down Shifting NOTE Multiple gear upshifts and downshifts may be allowed when the up/downshift request procedure is performed multiple times (Each request equals one gear change request). •... - Page 18 The starting gear cannot cle control. be changed in LOW mode. NOTE NOTE The PACCAR Automated Transmission If the driver attempts to select a non- initiates upshifts from MANUAL and neutral mode without depressing the LOW for engine overspeed protection.
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Page 19: Engine Brake Operation For A Vehicle With Automated Transmission
DRIVING - Engine Brake Operation for a Vehicle with Automated Transmission Reduce engine brake level, see Position Amount of Engine Brake Engine Brake Operation for a Vehicle with Automated 100% AND will engage Transmission on page 17. transmission low gear Re-initiate MAX mode, see Engine * This position is momentary... -
Page 20: Using The Manual - Automatic Button
DRIVING - Using the Manual - Automatic Button Related tasks of letting the transmission select them For Peterbilt Vehicles automatically. • Driver manually selects the start gear and uses the up/downshift Using the Manual - request to shift. Automatic Button NOTE Multiple gear upshifts and downshifts may be allowed when the up/downshift... -
Page 21: Start-Up And Power Down
Select the desired mode and starting gear on the Transmission Turn the ignition key to “ON” and The transmission initiates upshifts Driver Interface Device. allow the PACCAR Automated from MANUAL and LOW for engine Transmission to power-up. overspeed protection. NOTE... -
Page 22: Transmission Power Take Off (Pto)
DRIVING - Transmission Power Take Off (PTO) automatically launch and creep at WARNING WARNING constant engine idle. • Upshifts and downshifts can be Apply parking brake and follow vehicle Apply parking brake and follow vehicle made while at constant engine manufacturer parking instructions. -
Page 23: Snow/Ice Operation
Use the transmission PTO switch to Hill Start Aid defaults to the “On” position. for reverse direction. disengage the PTO. In PACCAR Automated Transmissions, it can be turned “Off” by pressing and Sliding Trailer Axle releasing the Hill Start Aid switch, however, it will turn back on after the first successful •... - Page 24 1% and in a forward mode. Service Brakes and then relaunch). Bring vehicle to a stop and depress • If the PACCAR Automated Apply the vehicle service brakes or the service brakes then release the Transmission clutch does start to...
- Page 25 DRIVING - Features engine overspeed in Drive, Auto Neutral transmission system may not MANUAL and LOW modes. downshift into lower gears. This • The transmission system will allows the transmission to coast to automatically shift to neutral if the a stop. vehicle is left in Drive and the Shuttle Shifting parking brakes are set.
- Page 26 DRIVING - Features select when it is necessary to at a constant speed at engine idle without engage a gear. the need to apply the accelerator pedal. The configuration is useful for stop and go • The transmission will exit Neutral applications allowing the vehicle to launch Coast Mode and reengage an and creep without applying the accelerator.
- Page 27 DRIVING - Features Y53-1272-1B1 (08/17)
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Page 28: Maintenance
MAINTENANCE - Chapter 3 | MAINTENANCE In this Chapter: What is a Maintenance Program?.......................27 What is the Air System?........................29 Air Dryer Maintenance........................32 Proper Transmission Lubrication......................32 Vehicle Towing............................ 33 How to Drain Fluid..........................33 How to Fill Fluid...........................34 Troubleshooting...........................34 Y53-1272-1B1 (08/17) -
Page 29: What Is A Maintenance Program
Failure schedule. Some tasks are dependent on to comply may result in death, person- PACCAR Transmission the vehicle application. These tasks will be Maintenance Schedule shown as separate tasks and will have the... - Page 30 MAINTENANCE - What is a Maintenance Program? At first 15,000 mi/ 15,000 mi/24,000 30,000 mi/48,000 60,000 mi/96,000 120,000 mi/ 192,000 240,000 mi/ 384,000 24,000 km or at first km/Monthly km/ 6 Months km/ Annually System Component Task Air Compressor Governor Replace air strainer.
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Page 31: What Is The Air System
MAINTENANCE - What is the Air System? System Component Task Main and Main and Auxiliary Transmission and Inspect for visible damage, signs of • • Auxiliary Transfer Case overheating, and leaks. Transmission Check the drain plugs for tightness. • Mounting Brackets and Fasteners Check the condition of the fasteners and their torque. - Page 32 MAINTENANCE - What is the Air System? one. Failure to comply may result in WARNING WARNING death, personal injury, equipment or property damage. Do not attempt to modify, alter, repair After completing any repairs to the air or disconnect any component of the air system, always test for air leaks, and WARNING system.
- Page 33 MAINTENANCE - What is the Air System? valve to allow air to flow into the brake compliance to FMVSS 121 could chambers. Contamination of the air supply WARNING cause loss of vehicle control and may system is the major cause of problems in lead to death or serious personal in- air-operated components such as brake Completely...
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Page 34: Air Dryer Maintenance
Buy lubricant from an approved be introduced. replacing. Failure to perform this main- dealer. tenance task will void the PACCAR Transmission warranty and may result Proper Transmission Lubrication Mixing of Oil Types in expensive transmission damage. -
Page 35: Vehicle Towing
MAINTENANCE - Vehicle Towing operating angle is the transmission interval should not exceed 60,000 mi / mounting angle in the chassis plus the 96,000 km / 6 Months. NOTE percent of upgrade (expressed in degrees). Before checking the oil level, the en- Transmission Lubrication Change Vehicle Towing gine must be idling and the transmis-... -
Page 36: How To Fill Fluid
NEUTRAL. Clean, install, and properly and torque fill plug. Transmission Air Supply NOTE For optimal performance, the PACCAR Automated Transmission requires a Once “N” NEUTRAL is selected, a gear Troubleshooting nominal air supply operating range engagement may not be allowed de- between 90 psi (5.9 bar) and 130 psi (9.0... - Page 37 What to do in an emergency and roadside contact with an authorized dealer assistance information. who can. • The PACCAR Customer Center Call toll-free to talk to someone at the service is FREE. PACCAR Customer Center: • Kenworth customers call: 1-800-...
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Page 38: Information
INFORMATION - Chapter 4 | INFORMATION In this Chapter: General Model Information........................37 PACCAR Transmission Lubricant Capacities..................37 PACCAR Transmission Lube Specification..................37 Y53-1272-1B1 (08/17) - Page 39 Design Level requesting service information: PACCAR Transmission Forward Speeds Ratio Set Lube Specification Transmissio PACCAR approves the PACCAR Genuine n Model Transmission Identification PS-386 (Eaton approved) synthetic Nomenclature Transmisiso transmission fluid to ensure the highest n Serial...
- Page 40 INFORMATION - PACCAR Transmission Lube Specification rebranders for PS-386 are also acceptable. Y53-1272-1B1 (08/17)
- Page 41 INFORMATION - PACCAR Transmission Lube Specification Y53-1272-1B1 (08/17)
- Page 42 Lube Interval Lube Specification Column Mounted Transmission Control 13, 15, Maintenance Schedule Manual Mode Engine Brake Engine Brake Column Mounted Transmission Control Engine Brake PACCAR Transmission Override Fluid Level PACCAR AMT PACCAR AMT Shifting gears PACCAR Transmission 27, PACCAR Transmission Controls...
- Page 43 Index Roadside Assistance Safety Safety Alerts Start up Transmission What is the Air System...
- Page 45 PACRI Powertrain P.O . Box 1518 x 1518 Bellevue , WA 98009 A 98009 Y53-1272-1B1...
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Questions and answers
2 stars on the dash and will not start
The manual does not mention a specific reason why the Paccar 12-Speed won't start if there are two stars on the dash. However, it does state that pumping the accelerator will not assist in starting the engine. Ensure that all required conditions for starting, such as proper gear selection and sufficient oil pressure, are met. If the issue persists, refer to the vehicle’s diagnostic system or consult a professional.
This answer is automatically generated