Paccar TX-18 Operator's Manual
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Paccar TX-18 Operator's Manual

18 speed transmission
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Summary of Contents for Paccar TX-18

  • Page 1 18 Speed 18 Speed Transmission Transmission Operator’s Manual Operator’s Manual...

  • Page 3: Table Of Contents

    Contents Safety........Features........Indications........Controls........Operation........Maintenance........Specifications........
  • 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.
  • Page 6 SAFETY - Chapter 1 | SAFETY Using this Manual..........................5 Safety Alerts............................5 Illustrations............................6 General Safety Instructions........................6 Repairs..............................9 Y53-1349-1A1 (02/2022)

  • Page 7: Using This Manual

    Operator’s or options mentioned in this manual. an authorized PACCAR dealer. PACCAR Manual. We recommend that you read and Therefore, you should pay careful attention reserves the right to make changes at any...

  • Page 8: Illustrations

    SAFETY - Illustrations equipment or property damage. The alert will identify the hazard, how to avoid it, and Illustrations CAUTION the probable consequence of not avoiding the hazard. Some of the illustrations found in this Continuing to operate your vehicle with Example: manual are generic, and may not look insufficient oil pressure will cause seri-...
  • Page 9 SAFETY - General Safety Instructions are included in the procedures when they • DO NOT wear loose-fitting or torn caping. Always remove the cap very apply. clothing. Tie back and/or tuck in slowly and carefully. Be ready to back Keep in mind that even a well maintained long hair.
  • Page 10 Use only genuine or battery charging cables to any avoid prolonged or repeated replacement parts from PACCAR. ignition or governor control wiring. contact with skin. DO NOT • Always use the same fastener part This can cause electrical damage swallow.

  • Page 11: Repairs

    SAFETY - Repairs skin with soap and water. In case of harmful contact, immediately WARNING CAUTION contact a physician. • Other chemicals in this vehicle are Modifying your vehicle can make it un- Corrosive chemicals can damage the also known to the State of safe.
  • Page 12 Anyone attempting repairs on it needs good mechanical training and the proper tools. However, all warranty repairs must be performed by a PACCAR Powertrain distributor. If you aren’t an experienced mechanic, or don’t have the right equipment, please leave all repairs to a PACCAR Powertrain distributor.
  • Page 13 SAFETY - Repairs Y53-1349-1A1 (02/2022)

  • Page 14: Features

    FEATURES - Chapter 2 | FEATURES Auxiliary Transmission (option)......................14 Auto-neutral............................14 Clutch Abuse Protection........................14 Coast Mode............................14 Creep Mode............................15 Cruise Control............................. 15 Engine Underspeed Protection......................15 Engine Overspeed Protection......................15 High-range Reverse (PRO only)......................15 Hill Start Aid (HSA)..........................16 Hold Gear Mode (option)........................16 Load-based Shifting..........................
  • Page 15 FEATURES - Transmission Power Take-off (PTO) (option)..................18 Urge to Move............................18 Y53-1349-1A1 (02/2022)

  • Page 16: Auxiliary Transmission (Option)

    If Auto-neutral has been activated, the Coast Down Gear accelerator pedal, allowing the clutch to transmission will not shift into Drive (D) changed at your PACCAR Powertrain cool down. or Reverse (R) until the shifter is first distributor. Y53-1349-1A1 (02/2022)

  • Page 17: Creep Mode

    Engine underspeed protection is active at a PACCAR Powertrain distributor. when in Drive or Manual mode. This transmission system is compatible with cruise control. Cruise control functions and features may vary depending on which engine you have.

  • Page 18: Hill Start Aid (Hsa)

    A new calibration can be selected at a and is useful when the operator wants to This feature will adjust the transmission PACCAR Powertrain distributor. Not all use the engine braking provided by a calibration options are available with shift schedule, changing the shift points,...

  • Page 19: Max Mode

    FEATURES - MAX Mode vehicle, until first gear is achieved (see • Vehicle brake is applied Low Mode Operation on page 38 for use). • Operator depresses accelerator NOTE Use Low mode to pedal • Stop the vehicle when carrying a •...
  • Page 20 FEATURES - Transmission Power Take-off (PTO) (option) This transmission will shift multiple gears at one time (skip shift) with moderate to high Transmission Power Take- NOTE accelerator pedal input while in Drive off (PTO) (option) mode, up to the 18 gear.
  • Page 21 FEATURES - Urge to Move Y53-1349-1A1 (02/2022)

  • Page 22: Indications

    INDICATIONS - Chapter 3 | INDICATIONS Digital Display............................. 21 Transmission Air Supply........................21 Popups..............................22 Transmission Gear Display......................... 23 Drive, Neutral, and Reverse Indicator....................23 Auxiliary Transmission - Neutral ......................23 Engine Brake Indicator........................23 Hill Start Aid (HSA) Disabled Warning Light..................24 Transmission Oil Temperature Gauge....................24 Clutch Temperature Gauge.........................

  • Page 23: Digital Display

    INDICATIONS - Digital Display Primary and Secondary Air Gauge Digital Display Transmission Air Supply The digital display is visible during all WARNING driving situations and in some parked situations. When the parking brake is set, the following actions will wake the display, Maintain specified transmission air making it visible: system pressure range between 90 psi...

  • Page 24: Popups

    INDICATIONS - Popups transmission operation: see See your vehicle operator's manual for Stack Size – The lower number Transmission Air on page 22. further information on air system leaks. indicates how many popups are in the stack (suppressible and non- suppressible), and the upper, which Low Transmission Air popup is being viewed.

  • Page 25: Transmission Gear Display

    INDICATIONS - Transmission Gear Display Neutral Transmission Gear Auxiliary Transmission - N (green) Neutral Coast Display Neutral – Shift Position Unknown Eighth Gear + Manual Mode Error State ‫٭٭‬ Data Loss Iindicates the auxiliary transmission is The Transmission Gear Display is located engaged and in neutral.

  • Page 26: Hill Start Aid (Hsa) Disabled Warning Light

    INDICATIONS - Hill Start Aid (HSA) Disabled Warning Light green. Active engine braking can be Clutch Temp overridden when the operator (or a truck Transmission Oil 300 ° feature, such as Adaptive Cruise Control Temperature Gauge (ACC)) provides acceleration. In these cases, the engine brake indicator will turn The gauge is located on the digital display white (enabled but not active) while...
  • Page 27 INDICATIONS - Clutch Temperature Gauge Move a safe distance off the road and stop. Place the transmission in neutral, set the parking brake, but do not stop the engine. NOTE Allow engine to idle. Turning off the engine prolongs the clutch high tem- perature condition.

  • Page 28: Controls

    CONTROLS - Chapter 4 | CONTROLS Column Shifter............................ 27 Hill Start Aid (HSA) Disable Switch..................... 31 Power Take-off (PTO) Switch (option)....................31 Auxiliary Transmission Switch (option)....................31 Y53-1349-1A1 (02/2022)
  • Page 29 CONTROLS - Column Shifter Transmission Modes Column Shifter NOTE The column shifter, located on the right- Selector (the transmission) must be in hand side of the steering column, lets the Neutral (N) to start the truck. operator perform the following transmission functions: •...
  • Page 30 CONTROLS - Column Shifter Reverse Mode (N), and then press the service brake • Reverse mode selects the default NOTE before a new mode can be selected. Reverse gear. If the start gear is changed using an upshift If the engine does not crank at start-up, or downshift request, the request will confirm the following: NOTE...
  • Page 31 CONTROLS - Column Shifter Upshifting and Downshifting • Pushing and holding the shifter NOTE away will engage the Low mode (see Low Mode Operation on page 38). When stationary, R3 is available to launch the vehicle. Once the vehicle is When in Manual mode moving, R4 through R6 can be select- •...
  • Page 32 CONTROLS - Column Shifter Exiting Manual Mode Manual and Automatic Modes Engine Brake Operation To exit Manual mode • Press the Manual Mode Button • Place the column shifter in Neutral Transmission Manual Override If the vehicle is being back-driven and the engine is approaching a higher than acceptable engine operation range, the transmission system will override Manual...
  • Page 33 CONTROLS - Hill Start Aid (HSA) Disable Switch switch) will immediately illuminate even Hill Start Aid (HSA) Disabled Warning Light Position Amount of Engine Brake though PTO engagement may not have page 24). occurred. If the PTO is engaged and the 100% Hill Start Aid is automatically re-enabled operator turns the switch OFF, the PTO...
  • Page 34 CONTROLS - Auxiliary Transmission Switch (option) • N (Neutral) • LOW Engages the auxiliary transmission. Switch lights up when active. Disengages the driveline. Switch lights up when active, and the Auxiliary Transmission - Neutral indicator is shown (see Auxiliary Transmission - Neutral on page 23 ).
  • Page 35 CONTROLS - Auxiliary Transmission Switch (option) Y53-1349-1A1 (02/2022)
  • Page 36 OPERATION - Chapter 5 | OPERATION General Operation..........................35 Hill Start Aid Operation (HSA)......................37 Low Mode Operation...........................38 MAX Mode Operation..........................39 Transmission-PTO Operation......................39 Snow/Ice Operation..........................40 Trailer Operation..........................41 Vehicle Towing............................ 41 Y53-1349-1A1 (02/2022)

  • Page 37: General Operation

    OPERATION - General Operation NOTE General Operation NOTE Engine cranking is delayed until the Some starters are equipped with over- Start Gears transmission power-up is complete crank protection. Check the Engine and the gear display shows a solid N. This transmission can be launched in the Operation and Maintenance Manual If Neutral (N) is not shown in the gear following start gears:...
  • Page 38 OPERATION - General Operation airleaks. Starting failure may mean Proper Clutch Use NOTE fuel is not reaching the injectors. This transmission uses an automated Watch the oil pressure gauge. If oil clutch to launch the vehicle; however, the The transmission automatically selects pressure doesn't rise withing a few clutch can still overheat with improper use.

  • Page 39: Hill Start Aid Operation (Hsa)

    OPERATION - Hill Start Aid Operation (HSA) Power Down pression may not provide sufficient NOTE force to hold the vehicle, or the trans- mission may move out of gear, caus- WARNING ing the vehicle to roll and result in an The transmission should always be in accident.

  • Page 40: Low Mode Operation

    OPERATION - Low Mode Operation pressing and releasing the Hill Start Aid Bring vehicle to a stop and depress Disable Switch (see Hill Start Aid (HSA) the service brakes. NOTE Disable Switch on page 31). Release the service brakes to launch the vehicle.

  • Page 41: Operation

    OPERATION - MAX Mode Operation down to the temporary 4th NOTE position). MAX Mode Operation • Selects Neutral (N) (see If the driver attempts to select a non- Transmission Modes on page 27). Use this feature when a situation requires neutral mode without applying the 100% engine brake and the additional •...

  • Page 42: Snow/Ice Operation

    OPERATION - Snow/Ice Operation Release the service brake to Bring the vehicle to a complete engage the clutch and the PTO. stop and apply the parking brake. CAUTION Raise engine speed as required to operate PTO. WARNING DO NOT operate the transmission at an operating angle greater than 12°...

  • Page 43: Trailer Operation

    OPERATION - Trailer Operation operation. However, if the driver observes • Use Low mode (1 gear) for proper towing procedures could result low friction road conditions (such as snow, forward direction and Reverse (R1) in damage to the transmission. rain, ice) and does not want the for reverse direction.
  • Page 44 OPERATION - Vehicle Towing Limited Driveline-connected Limited Driveline-conntected Towing requirements have been met. Towing CAUTION Towing the vehicle with the driveline connected and failing to obey the follow- ing Limited Driveline-Connected Towing requirements will damage the transmis- sion and void the transmission warranty. Vehicle and transmission requirements: •...
  • Page 45 OPERATION - Vehicle Towing Y53-1349-1A1 (02/2022)
  • Page 46 MAINTENANCE - Chapter 6 | MAINTENANCE Preventative Maintenance........................45 Weekly Checks........................... 47 Every 7,500 mi / 12,000 km........................ 47 Every 30,000 mi / 48,000 km......................48 Every 60,000 mi / 96,000 km / 6 mo....................48 Annually.............................. 49 Every 240,000 mi / 384,000 km / 3 yr....................49 Every 500,000 mi / 800,000 km / 5 yr....................

  • Page 47: Preventative Maintenance

    If work must be done with the engine age. have. For such situations, please take your running, always vehicle to a PACCAR Powertrain • Ensure that the transmission is distributor. in Neutral (N) (or Park (P)) •...
  • Page 48 MAINTENANCE - Preventative Maintenance • OFF-HIGHWAY – Applications where the vehicle may be driven off WARNING CAUTION the pavement on a regular basis, even if it is an infrequent basis When working underneath the vehicle DO NOT operate the transmission at and/or for a brief time period.

  • Page 49: Weekly Checks

    If there are questions regarding which 20402, or ContactCenter@gpo.gov. transmission. intervals to follow, please contact a PACCAR Powertrain distributor. Consult Transmission the supplier for specific recommendations where discrepancies develop between the Perform the following checks in addition to...

  • Page 50: Every 30,000 Mi / 48,000 Km

    MAINTENANCE - Every 30,000 mi / 48,000 km Every 30,000 mi / 48,000 Every 30,000 mi / 48,000 km Air - Air Compressor Governor • Replace air strainer (See Air Compressor on page 50 for maintenance instructions). Air - Air Lines •...

  • Page 51: Annually

    MAINTENANCE - Annually Every 60,000 mi / 96,000 km / 6 mo Main and Auxiliary Transmission - Mounting Brackets and Fasteners • Check the condition of the fasteners and their torque. Tighten to the specified torque value as required. (Refer to Frame Fastener Torque Requirements on page 63 for maintenance instructions.

  • Page 52: Every 500,000 Mi / 800,000 Km / 5 Yr

    MAINTENANCE - Every 500,000 mi / 800,000 km / 5 yr Every 240,000 mi / 384,000 km / 3 yr Main and auxiliary Transmission - Lubrication (VOCATIONAL) • Drain and replace lubricant (See Draining the Transmission on page 54). Every 500,000 mi / 800,000 km / 5 yr Every 500,000 mi / 800,000 km / 5 yr Main and auxiliary Transmission - Lubrication (ON-HIGHWAY and CITY DELIVERY)

  • Page 53: Maintenance

    ASTM D6210 and clean or replace the discharge line Caterpillar EC-1 requirements. PACCAR if necessary. recommends only using a 50:50 mixture of Air Dryer Oil-coalescing •...
  • Page 54 ISX and PX engines, and MAT74002 for Check the level of freeze/boil-over to freezing, boiling, corrosion, pitted PACCAR MX-11 and MX-13 engine protection, which is determined by the cylinder liners. This information is requirements. Maintaining coolant glycol concentration.
  • Page 55 Coolant Extender / Water CAUTION (°C) Ratio Add ELC extender, if necessary, according Use of non-genuine PACCAR coolant to the corrosion inhibitor concentration -12 (-24) filters can cause severe engine dam- required. DO NOT add coolant extender to age. -23 (-31) nitrite-free coolant.

  • Page 56: Lubrication

    MAINTENANCE - Lubrication or if the lubricant level is ignored, all other your vehicle to a PACCAR Powertrain maintenance procedures are not going to distributor for maintenance processes that CAUTION keep the transmission running or assure require draining transmission lubricant.
  • Page 57 MAINTENANCE - Lubrication • Small container (to catch fluid) Locate the check plug (1) and NOTE place container under the check • Standard wrench plug hole. • Torque Wrench Do not over-torque the check plug or Remove the check plug using •...
  • Page 58 MAINTENANCE - Lubrication Inspect fill plug and O-ring for Fill Plug (approximately 21% road grade). The damage. If damaged, replace with Check Plug operating angle is the transmission new plug and O-ring. mounting angle plus the road grade Insert fill plug with O-ring and expressed as an angle.

  • Page 59: Troubleshooting

    MAINTENANCE - Troubleshooting If equipped with a PTO or transmission Engine oils and gear oils may not be Low), current gear, and engine cooler, start engine and run for 1 to 2 compatible; mixing can cause breakdown speed). minutes to fill these components with of the lubricant and affect component Reset system.
  • Page 60 MAINTENANCE - Troubleshooting WARNING Apply parking brake and follow vehicle manufacturer parking instructions. Fail- ure to follow these instructions could cause unintended vehicle movement re- sulting in death, serious injury or dam- age to property. Turn the vehicle ignition switch to OFF.
  • Page 61 MAINTENANCE - Troubleshooting Y53-1349-1A1 (02/2022)

  • Page 62: Specifications

    SPECIFICATIONS - Chapter 7 | SPECIFICATIONS General Model Information........................61 Calibration Options..........................61 Transmission Lubricant Capacities..................... 62 Transmission Lube Specification......................62 Frame Fastener Torque Requirements....................63 Roadside Assistance...........................64 Y53-1349-1A1 (02/2022)

  • Page 63: General Model Information

    • Tanker – fast shifts for unbaffled tankers do not disrupt the shifting PXD = PACCAR TX-18 load. PXDP = PACCAR TX-18 PRO NOTE Torque Capacity (XX × 100 +50 lb-ft) NOTE Do not remove or destroy the trans- Units for Torque [F = lb-ft; N = Nm] mission identification tag.

  • Page 64: Transmission Lubricant Capacities

    25.4 (≈ 3.2 gal) nents, resulting in degraded perform- ance and equipment damage, and may affect warranty coverage. PACCAR approves use of PACCAR Genuine PS-386 (Eaton approved) Y53-1349-1A1 (02/2022)

  • Page 65: Frame Fastener Torque Requirements

    SPECIFICATIONS - Frame Fastener Torque Requirements Standard Tightening if the nut is held and torque is Frame Fastener Torque Fastener Size [- Specification lb-ft applied to the bolt. in.] (with NYLON (N•m) Requirements insert nuts) Nylon lock-nuts (AKA, "ESNA" or "nyloc") 1-1/8 990-1,170 (1,346-...

  • Page 66: Roadside Assistance

    FRAME and DO NOT Open 24 hours a day, 365 days a year, call installed on it must also be APPLY to u-bolts for the suspension. toll-free to talk to someone at the PACCAR replaced. Vehicle Support Center: •...
  • Page 67 SPECIFICATIONS - Roadside Assistance 1-800-KW-Assist (1-800-592-7747) • Peterbilt customers 1-800-4Peterbilt (1-800-473-8372) The PACCAR Vehicle Support Center • Uses a custom mapping system that locates PACCAR Powertrain distributors and Independent Service Providers (ISPs) near you, listing services offered, hours of operation, and contact information.
  • Page 68 Index Index Adding Transmission Fluid Diagnostics Additives to Cooling System Display Launch Air System DNR Indicator Air Compressor Air Dryer Oil-coalescing Cartridge Transmission Air Supply 21, Auto-neutral Engine Brake Automatic Mode, See Manual and Automatic Modes Auxiliary Transmission (option) Indicator Auxiliary Transmission Switch (option) Operation 30, 38, Engine Cooling Recommendations and Specifications...
  • Page 69 Index Hill Start Aid MAX Mode Disable Switch Max Mode Downhill Facing Operation 30, 38, Forward Facing Hill Start Aid 16, 24, 31, 37, Hill Start Aid (HSA) Disabled Warning Light Operation Hold Gear Mode Neutral Neutral Coast Mode Nomenclature Identification Tag Illustrations Optimized Gear Selection 17,...
  • Page 70 Index Repairs Vehicle Towing Reverse Roadside Assistance Safety Alerts Shifter, See Column Shifter Start Gears Start up Transmission Air Supply 21, Transmission Gear Display Transmission Modes DNR Indicator Drive (automatic) Neutral Reverse Transmission Oil Temperature Gauge Transmission Reset Procedure Transmission, Auxiliary Troubleshooting Upshifting and Downshifting Urge to Move...
  • Page 72 PACRI Powertrain P.O . Box 1518 x 1518 Bellevue , WA 98009 A 98009 Y53-1349-1A1...

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