Page 1 MAINTENANCE MAINTENANCE AND LUBRICATION AND LUBRICATION MP7, MP8, and MP10 Engines MP7, MP8, and MP10 Engines 21959814 © Mack Trucks, Inc. 2012 21959814 Printed in U.S.A. May 2012...
Page 3: Table Of Contents
Electric System Damage Prevention............33 Reporting Safety Defects ................. 35 General Engine Information..............36 Engine Overview, MP7 and MP8 Left Side View ........... 36 Engine Overview, MP7 and MP8 Right Side View.......... 37 Engine Overview, MP10 Left Side View ............38 Engine Overview, MP10 Right Side View ............
Page 4 Service Check List ................153 Preventive Maintenance................. 153 Service Charts..................157 Scheduled Services................157 Tire Record ..................161 Fuel and Oil Record................162 Engine Data..................163 Literature ................... 164 Service Assistance and Manuals .............. 164 CUSTOMER SERVICE ................ 165...
Page 5: Operator's Manual Vehicle Maintenance Cxu, Chu, Gu, Td, Mru And Leu
Order number: PV776-21 All rights reserved. No part of this publication may be reproduced, stored in retrieval system, or transmitted in any forms by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of MACK Inc.
Page 6: Warning Label Information
In the event that a label is damaged or missing the label must be replaced. Contact your authorized MACK Truck dealer for assistance regarding Warning and Advisory labels.
Page 7: General Information
If you are not the original owner of this vehicle, please notify us about the change in ownership at the address below or through an authorized MACK Truck dealer. This is the only way we will be able to contact you if necessary.
Page 8 Note: Illustrations are used for reference only and may differ slightly from the actual vehicle, however, key components addressed in this manual are represented as accurately as possible. MACK Inc. reserves the right to make changes at any time or to change specifications or design without notice and without incurring obligation. General...
Page 9: Federal Emission Requirements
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 5 Mexico The same conditions that apply in the USA apply to Mexico. Refer to the Mexican Federal Law for Emission Control which adheres to EPA regulations. No changes should be made that render any or all of the emissions control devices inoperative.
Page 10 State of California) MACK Trucks Inc. warrants the Emission Control Systems on each new MACK diesel engine in a new MACK truck to comply with all State of California emissions regulations applicable at the time of manufacture of the engine,...
Page 11 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 7 MACK Trucks Inc. obligation under this warranty is limited to the repair or replacement, at MACK Trucks Inc. option, of any part(s) of Emission Control Systems of such engine and/or vehicle found to be defective upon examination by MACK Trucks Inc.
Page 12 MACK Inc. was designed, built and equipped to conform, at the time it left the control of MACK Inc., with all applicable U.S. EPA Noise Control Regulations.
Page 13 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 9 • Selective Catalytic Reduction (SCR) Tampering with Noise Control System Federal law prohibits the following acts or the causing thereof: (1) The removal or rendering inoperative by any person, other than for purposes of maintenance, repair, or replacement, of any device or element of design incorporated into any new vehicle for the purpose of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use;...
Page 14 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Noise Shielding and Insulation Devices Maintenance Ensure sound shielding and insulating devices are intact. Inspect components for damage. Primary system components requiring noise related inspection include the hood, engine compartment insulating materials (including hood insulation, bulkhead insulation, doghouse insulation, etc.) splash shields, cab skirts, fender shields, and body panels.
Page 15 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 11 Regulatory Compliance Acts that constitute tampering with the Cooling System: Removing or rendering inoperative cooling system components (such as the temperature modulated fan clutch, fan shroud, fan ring, recirculation shields, etc.).
Page 16 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Exhaust System WARNING Hot engine! Avoid all movable parts or hot engine parts, exhaust gases, and/or fluids. A hot engine, exhaust, and/or fluids can cause burns. Maintenance Make sure the exhaust system is intact. Inspect for damage, misalignment and/or leakage.
Page 17 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 13 Regulatory Compliance Acts that constitute tampering with the Air Intake/Air Induction System: Removing or rendering inoperative air intake/induction system components (filter, filter housings, ducts, etc.). Engine Control, EGR and Fuel Systems Acts that constitute tampering with Engine Control, EGR and Fuel Systems: Removing rendering inoperative, or modifying the engine control system such as the ECU, EGR system components, or fuel system components, in order to allow...
Page 18: Label Information
The VIN can be found at several different locations on a MACK vehicle. Locations include a stamping on the vertical face of the right-hand frame rail (somewhere...
Page 19 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 15 W0031973 VIN Label on Drivers Seat Riser...
Page 20 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Regulatory Labels In addition to, or in place of the previously mentioned labels, MACK Trucks, Inc. may affix one or more of the following labels to the cab. Heater/Defroster Omission Label...
Page 21 CHU, GU, TD, MRU and LEU 17 Export Label In order to comply with U.S. regulations, all MACK vehicles intended for export from the United States (including export to Canada) will have an Export Label, similar to the label shown below, affixed to the inside of the windshield.
Page 22 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Export/Special Application Label Export (excluding export to Canada) or special application vehicles supplied from the assembly plant are not necessarily designed to conform to applicable Federal and Canadian motor vehicle safety standards. On these vehicles, an Export/Special Application Label, similar to the label shown in the illustration below, is affixed to the cab.
Page 23 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 19 Export vehicles (other than those intended for sale in Canada) also have an Export Label, similar to the label shown below, affixed to the door area. W0031977 Typical Export Label (Other Than Export to Canada) Off-Highway Identification Label In addition to the Export/Special Application Label, vehicles designed strictly for off-highway operations will have an Off-Highway Identification Label, similar to the...
Page 24: Safety Information
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Safety Information Proper Maintenance Procedure DANGER Before working on a vehicle, set the parking brakes, place the transmission in neutral, and chock the wheels. Failure to do so can result in unexpected vehicle movement and can cause serious personal injury or death.
Page 25 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 21 WARNING DO NOT attempt to repair or service this vehicle without having sufficient training, correct service literature and the proper tools. Failure to follow this could lead to personal injury or making your vehicle unsafe.
Page 26 30 psi (200 kPa) for cleaning purposes. Asbestos Information Note: The MACK engine and replacement parts for it shipped from the factory are asbestos free. MACK recommends the use of only genuine MACK spare parts. Never use any parts that contain or are thought to contain asbestos. Exposure to asbestos fibers can create serious health risks, including death.
Page 27: Injury Prevention
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 23 Injury Prevention Burn Prevention Engine Parts WARNING Hot engine. Keep yourself clear of all hot engine parts and/or fluids. A hot engine and/or fluid can cause serious burns. WARNING DO NOT raise the engine hood if you see or hear steam or coolant escaping from the engine compartment.
Page 28 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Coolant WARNING Coolant may be combustible. Coolant leaked or spilled onto hot surfaces or electrical components can cause a fire. Clean up coolant spills immediately. W0001527 To prevent personal injury, do not climb up on the engine to remove the filler cap. Use a suitable, properly positioned ladder to reach the cap.
Page 29 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 25 Batteries WARNING Always wear eye protection when working around batteries to prevent the risk of injury due to contact with sulfuric acid or an explosion. WARNING Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm.
Page 30 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Fire or Explosion Prevention DANGER The diesel engine will operate on any fuel which enters the cylinder, whether it is from the injectors or from the air intake system. Therefore, if any solvent is used to flush out the air cleaner element, the engine may over speed during start-up.
Page 31 Make provisions for shutting off the engine intake air or fuel supply to stop the engine if there is an over speed on start-up after performing repair or maintenance on it. Contact your nearest MACK Truck dealer for any necessary air conditioning testing or repairs.
Page 32 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Starting Aids DANGER DO NOT use ether or other combustible starting aids on any engine equipped with a preheater. If the engine is equipped with a preheater, introduction of ether or similar starting aids could cause a fire or explosion resulting in severe property damage, serious personal injury or death.
Page 33 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 29 Respiratory Hazard Prevention DANGER Exhaust gases contain carbon monoxide. Always run the engine outdoors or use a properly vented exhaust hose. Prolonged or excessive exposure may cause serious illness or death.
Page 34 W0001524 Never attempt adjustments or repairs while the engine is running, see your authorized MACK Truck dealer. Inspect the fan blade assembly before service for cracks or loose mounting before starting the engine. Never stand alongside a rotating fan assembly, particularly at high fan speeds.
Page 35: Engine Damage Prevention
DO NOT disable or bypass automatic alarm/shutoff circuits. They are provided to prevent personal injury and engine damage. Only properly trained and authorized MACK Service Technicians may attempt repairs on this vehicle.
Page 36 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Engine Starting DO NOT start the engine or move any of the controls or disengage the parking brake if the warning tag DO NOT OPERATE is attached to the ignition key or located on the dash.
Page 37: Electric System Damage Prevention
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 33 Electric System Damage Prevention Electric and Electronic Systems WARNING Always wear eye protection when working around batteries to prevent the risk of injury due to contact with sulfuric acid or an explosion. W0001526 Never disconnect any charging unit circuit or battery circuit cable from the battery when the charging unit is operating.
Page 38 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Electronic Engine Control System DANGER The engine uses high voltage to the electronic unit injectors. DO NOT come in contact with the unit injector terminals while the engine is running.
Page 39: Reporting Safety Defects
Contact MACK Trucks de Mexico by calling: 01 (800) 90 94 900 (within Mexico only) or 011-52-55-50-81-68-50, or by writing to: MACK Trucks de Mexico, S.A.
Page 40: General Engine Information
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU General Engine Information Engine Overview, MP7 and MP8 Left Side View W2006034 MP8 Engine Shown, MP7 Engine Similar 1. Breather Tube 9. Fuel Filter 2. Intake Manifold 10. Hand-Priming Pump 3.
Page 41: Engine Overview, Mp7 And Mp8 Right Side View
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 37 Engine Overview, MP7 and MP8 Right Side View W2006035 MP8 Engine Shown, MP7 Engine Similar 17. Exhaust Manifold 24. Venturi Pipe 18. Valve Cover 25. Oil Filters 19. Intake Air Heater (IAH) optional 26.
Page 42: Engine Overview, Mp10 Left Side View
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Engine Overview, MP10 Left Side View W2006037 1. Breather Tube 9. Fuel/Water Separator 2. Intake Manifold 10. Fuel Filter 3. Air Compressor 11. Hand-Priming Pump 4. Power Steering Pump 12.
Page 43: Engine Overview, Mp10 Right Side View
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 39 Engine Overview, MP10 Right Side View W2006036 18. Exhaust Manifold 24. Coolant Filter 19. Valve Cover 25. Oil Filters 20. Intake Air Heater (IAH) 26. EGR Cooler 21. Thermostat 27.
Page 44: Electrical System
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Electrical System Batteries WARNING CAUTION Battery posts, terminals and related Disconnecting battery cables when accessories contain lead and lead vehicle is equipped with power door compounds, chemicals known to the locks will result in automatic locking State of California to cause cancer and of doors.
Page 45 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 41 Be sure that the batteries used in a particular vehicle are rated for the specified Cold Cranking Amperes (CCAs) necessary to ensure reliable cold weather starts. This is important, since even well-maintained batteries chilled to – 18 °C (0 °F) may temporarily be capable of providing only 40% of their rated capacity at 27 °C (80 °F).
Page 46: Battery Warmer
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Battery Warmer A battery warmer can be added to raise the temperature of the battery core and facilitate quick starting in cold weather. Battery Condition The first procedure when testing a battery is to check for external damage such as a cracked case, loose or corroded terminals, or signs of excessive gassing or overcharging.
Page 47: Charging
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 43 • Green dot visible Any green appearance should be interpreted as a green dot and means that the battery is at or above a 65% state of charge and is ready for use or testing.
Page 48 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Completely Discharged Batteries Extremely cold or completely discharged batteries may not initially show a charge since the electrolyte is nearly pure water and, therefore, a poor conductor. As the acid level in the electrolyte increases during charging, the charging current will also increase.
Page 49: Load Test
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 45 Load Test A battery must be fully charged before performing a load test. To load-test a battery that is fully charged, proceed as follows: 1 Connect a load tester and voltmeter across the battery terminals. 2 Apply a load so that a figure of 300 amps is obtained for 15 seconds to remove the battery surface charge.
Page 50 To help protect your vehicle's external high amperage electrical cables and connections from corrosion due to the effects of newer salts (calcium chloride and magnesium chloride) on the roadways, MACK is offering a corrosion inhibitor part 20916273 for purchase through the PDC.
Page 51: Precautions When Installing Electrical Equipment
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 47 Precautions When Installing Electrical Equipment Connecting electrically powered or electrically controlled equipment to a vehicle may cause interference with other vehicle electrical or electronic equipment (such as ABS systems, Rollover Stability Systems, etc.). The amount of interference depends upon the operating frequency of any new signals and the degree to which transient signals are coupled to the vehicle system.
Page 52 MACK Road Stability Advantage The MACK Road Stability Advantage (RSA) is an available option on certain MACK highway tractors and straight trucks. The RSA system, which is based on the Bendix ABS-6 Advanced with ESP (Electronic Stability Program) System, aids the operator in maintaining control of the vehicle during jackknife or rollover events by applying select brakes and reducing engine power as required by the specific situation.
Page 53 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 49 The location of the yaw rate/lateral acceleration sensor must not be altered. Aftermarket steering wheels must not be used. Only OEM-supplied replacement steering wheels should be used. During any procedure that involves removal and reinstallation or replacement of the OEM steering wheel, care must be used not to crush or damage the steering angle sensor which is mounted on the steering column.
Page 54: Engine Storage
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Engine Storage Engine Storage If the vehicle must be parked for a period (more than 30 days), protect it as follows: 1 Drain the engine oil. 2 Fill up to the proper level with oil of the recommended quality and viscosity. 3 Fill up the fuel tanks with the recommended grade of fuel.
Page 55: Maintenance And Service
Note: Read all safety information before working on the vehicle. Engine Components, Service Schedules Component Operation Km (Miles)/Maximum Months/Hours Fuel Filter Change Each oil change* (MP7, MP8 and MP10) Water Separator Filter change Each oil change* (MP7, MP8 and MP10) Air Filter US2010...
Page 56 200 000 (125,000) or 12 months, whichever comes first (MP7 and MP8)** Valves/Injectors Adjust 400 000 (250,000) or 24 months, whichever comes first (MP7 and MP8) ** Valves/Injectors Initial Adjust 100 000 (60,000) or 6 months, whichever comes first (MP10) ** Valves/Injectors...
Page 57 Aftertreatment Clean 280 000 (175,000) or 12 months, Diesel Exhaust Fluid whichever comes first (DEF) Tank Filler Neck Filter Cleaning (MP7, MP8 and MP10) Aftertreatment Clean 240 000 km (150,000 miles) Hydrocarbon Doser or 4,500 hours, whichever comes first Service...
Page 58: Cooling System
Clean up coolant spills immediately. CAUTION MACK Inc. does not recommend using plain water in the cooling system. Water alone is corrosive at engine operating temperatures and does not provide adequate boiling protection. The engine may develop corrosion and cavitation problems in the engine and radiator, and the boiling point of the coolant is lowered compared to a proper antifreeze and water mixture.
Page 59 Surge Tank Cap MACK conventional models (CXU, CHU, GU and TD) utilize a coolant surge tank mounted on top of the radiator. The surge tank has a fill cap located on the top right-hand side of the tank, and a pressure cap rated at 16 lb. which incorporates an overflow tube located on the left-hand side of the tank.
Page 60 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU MACK low cab forward models (MRU, LEU) utilize a surge tank which is located on the left-hand side of the chassis, mounted on a stanchion to the rear of the cab. This surge tank utilizes a standard radiator pressure cap.
Page 61 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 57 Note: Always dispose of coolant according to Federal or local regulations. Take all used coolant to a recycling or waste collection center. Coolant mixture consisting of an antifreeze solution in water should be used year-round to provide freeze and boil-over protection as well as providing a stable environment for seals and hoses.
Page 62 52 (55) MP8* 54 (57) MP7 Manual transmission without 39 (41) auxiliary cooling package 48 (51) MP7 Manual transmission with auxiliary 48 (51) cooling package 58 (61) MP7 Automatic transmission without 52 (55) auxiliary cooling package MP7 Automatic transmission with auxiliary...
Page 63 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 59 Use the following antifreeze protection charts to determine the percentage of antifreeze needed to achieve specific protection levels for various coolant systems. Ethylene-Glycol Protection Chart Ethylene Glycol Ambient Air Temperature 24 °C (12°F) 37 °C (34 °F) 52 °C (62 °F)
Page 64 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Inspection of the whole cooling system is important. Check for swollen or deteriorated heater and radiator hoses, loose hose clamps and connections, and radiator leaks. DANGER DO NOT work near the fan with the engine running. The engine fan can engage at any time without warning.
Page 65 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 61 Regular Coolant Change Interval Coolant SCA level must be tested at least twice per year or whenever coolant loss occurs. For maximum coolant system efficiency, test the system at every engine oil change interval, every 1,000 hours or every 6 months (whichever comes first).
Page 66 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Extended Life Coolant Change Interval CAUTION Extended life coolant will test as out of additives (SCA), but SCA should not be added. Shortened engine life may be the result of adding SCA. Note: DO NOT add supplement coolant additives (SCA) to extended life coolant.
Page 67: Fuel System
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 63 Fuel System Fuel Safety Reminders DANGER A diesel engine will operate on any fuel which enters the cylinder, whether it is from the injectors or from the air intake system. Therefore, if any solvent is used to flush out the air cleaner element, the engine may over speed during start-up.
Page 68 Use of fuel additives to compensate for the lower sulfur content is NOT recommended by MACK Inc. The proper selection of fuel is essential for good economy, performance and engine life. No. 2D ULSD should be used when climatic conditions permit. No. 1D ULSD can be used during cold weather conditions.
Page 69 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 65 Cetane Number Direct injected diesel engines require a minimum cetane number of 43 under normal starting conditions. Fuel with a higher cetane value may be required for high-altitude or cold-weather operation.
Page 70 • Used lubricating oil MACK Inc. does not recommend the use of any type of used lubricating oil as an extender in the diesel fuel. Used lubrication oil contains solids and acids from the combustion process that can severely corrode parts of the injection system, resulting in reduced power and higher maintenance cost over time.
Page 71 As a result, MACK does not warrant the engine will conform to applicable Federal or California emissions limits when operated on, or having been operated on, biodiesel or other alternative fuels that are not substantially similar to specified test fuels used for certification.
Page 72 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Fuel Storage If fuel is stored on site: • Keep storage tank covered to prevent water entry. • DO NOT use a tank made of galvanized metal or any galvanized piping for diesel oil storage.
Page 73 The secondary fuel filter is located on the left hand side, below the engine electronic control unit (EECU). The filter is a spin-on filter. MACK MP engines utilize a spin-on primary and secondary fuel filters. Both filters are located on the right-hand side of the engine.
Page 74 Primary Fuel Filter Replacement Procedures MACK MP Engines At each specified oil and filter change interval, change the primary fuel filter as follows: W0054023 MACK MP Primary Fuel Filter 1. Primary Filter 3. Water-in-Fuel Sensor Harness 2. Water Separator Bowl 4. Drain Assembly...
Page 75 11 Reconnect the water-in-fuel sensor harness connector. 12 Prime the engine as required prior to starting the engine (refer to “Priming the Fuel System MACK MP Engines”, page 73). 13 Start the engine and check for leaks.
Page 76 5 Install the new filters and tighten an additional 3/4 to 1 turn by hand after the gasket contacts the base. 6 Prime the engine as required prior to starting the engine (refer to “Priming the Fuel System MACK MP Engines”, page 73). 7 Start the engine and check for leaks.
Page 77 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 73 Priming the Fuel System MACK MP Engines On MACK MP engines, the priming pump is located on the primary fuel filter mounting adapter. Prime the fuel system as follows: DANGER...
Page 78 4 Start the engine and run it at 1000 rpm for approximately 5 minutes to purge any remaining air from the system. Note: If the engine does not start after performing the above priming procedure, contact your local MACK dealer for assistance.
Page 79 CHU, GU, TD, MRU and LEU 75 Fuel/Water Separator MACK MP Engines The primary fuel filter on MACK MP engines includes a plastic water separator bowl with an integral water-in-fuel sensor and a drain assembly. A warning lamp on the instrument panel illuminates when water is detected in the fuel. When the lamp illuminates, drain the water from the separator by opening the drain valve and allowing the water to drain from the bowl into a suitable container.
Page 80: Engine Oil
Always replace the oil filters at the same time as when the oil is changed. Oil Quality MACK Inc. recognizes engine oils that meet or exceed the standards given by American Petroleum Institute (API) for the oil classifications listed in this manual.
Page 81 CAUTION MACK branded oil filters are designed to provide the proper level of filtration and protection for MACK engines. Filters that do not meet the same stringent requirements may void engine warranty.
Page 82 Synthetic oils are offered by some oil suppliers as an alternative to the traditional, petroleum based oils for engines. These oils may be used in MACK engines, provided they meet the quality levels specified on the previous pages, that is: both VDS-4 and EO-O Premium Plus.
Page 83 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 79 Oil Additives CAUTION Extra oil additives must never be added to any engine oil used. Additives such as break-in oils, top oils, graphitizers, and friction reducing liquids are not necessary and may even harm the engine.
Page 84 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Oil Change WARNING A hot engine or engine oil can be dangerous. Serious burns can result from contact with a hot engine or oil. Take precautions when draining the oil. Wear gloves or let the engine cool down before draining.
Page 85 CAUTION MACK-branded oil filters are designed to provide the proper level of filtration and protection for MACK engines. Filters that do not meet the same stringent requirements may cause unsatisfactory results. 1 Coat the filter gasket with oil.
Page 86 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Checking Oil Level CAUTION DO NOT let the oil level fall below the marking on the dipstick. DO NOT overfill so the level is above the upper marking on the dipstick. This could lead to excessive oil temperature and/or poor crankcase breather performance.
Page 87 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 83 Checking Power Steering Fluid Proper fluid level should be between the lines on the dipstick. Note: CHECK COLD W2064870 1 Maximum Level 2 Minimum Level...
Page 88: Driveshaft Lubrication
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Driveshaft Lubrication W4073384 Enhanced slip seal with protective E-coated metal shroud. Meritor has developed the Arvin Meritor Extended Lube (MXL) driveshaft series, which will fully replaced the current RN series driveshafts. (Current RN yokes will remain the same).
Page 89 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 85 Intervals Vehicle Lines From 80000 km to 161000 km Linehaul (50,000 mile to 100,000 miles) On-Highway From 25750 km to 161000km (16,000 miles to 100,000 miles) General Service (City) From 10460 km to 40000 km (6,500 miles to 25,000 miles) As recommended (unchanged versus RN...
Page 90: Engine Air Filter
Change the air filter element in accordance with the procedures as outlined, when the restriction gauge red signal locks in full view, or the dash-mounted gauge indicates inlet restriction as follows: Mounted Gauge Inlet Restriction Indication Engine Millimeters (Inches) Water/kPa MP7, MP8 and MP10 510 mm (20)/5 kPa W0054007 Air Filter Restriction Gauge...
Page 91 7 Inspect the sealing areas of the housing for damage. Repair or replace as necessary. 8 Use MACK-approved replacement elements and gaskets. Make sure the new elements and gaskets are not damaged. Be sure to use new gaskets each time the element is changed.
Page 92 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Note: DO NOT attempt to clean the air filter element with compressed air, as this could damage the filter medium and possibly result in severe engine damage. W0053982 Replacement Parts and Filters...
Page 93: Exhaust After-Treatment System
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 89 Exhaust After-Treatment System CHU, CXU, GU and TD Standard System View W2029933 1. Selective Catalytic Reduction (SCR) Catalyst 2. Aftertreatment DEF Dosing Unit 3. Aftertreatment Diesel Particulate Filter (DPF) 4.Aftertreatment DEF Tank...
Page 94 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU LEU and MRU Standard System View W2031562 1. Selective Catalytic Reduction (SCR) Catalyst 2. Aftertreatment DEF Dosing Unit 3. Aftertreatment Diesel Particulate Filter (DPF) 4.Aftertreatment DEF Tank...
Page 95 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 91 DANGER The SCR/DPF shield should not be removed while the vehicle is in use. Also, only remove the shield, once the vehicle is out of use and the SCR/DPF is sufficiently cooled.
Page 96 The DPF system reduces the unwanted elements to a more acceptable level defined in the regulations. There are multiple methods of reducing these emissions. MACK has selected to use a Diesel Oxidation Catalyst (DOC) with a catalyzed diesel particulate filter. The other uses a diesel particulate filter of a different kind without a DOC and in its place uses a combustion chamber to heat the exhaust mixture thus causing active regeneration.
Page 97 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 93 Aftertreatment Hydrocarbon Dosing System W2064634 The aftertreatment hydrocarbon dosing system is a part of the exhaust aftertreatment system and is used to increase the exhaust gas temperature (EGT) needed for the aftertreatment system.
Page 98 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Selective Catalytic Reduction (SCR) Selective Catalytic Reduction (SCR) is an emissions-reduction technology with the ability to deliver near-zero emissions of nitrogen oxides (NOx), a smog-causing pollutant and greenhouse gas. SCR's performance has been proved in millions of miles of real-world truck operations in other countries, as well as in long-term field tests in the U.S.
Page 99 The horizontal SCR catalyst comes in two different sizes, one for the MP7/MP8 engines and larger size for the MP10 engine. The vertical SCR catalyst also comes in two different sizes, one for the MP7/MP8 engines and larger size for the MP10 engine.
Page 100 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Diesel Exhaust Fluid (DEF) Diesel Exhaust Fluid (DEF) is a reactant that's key to the SCR process. It's a nontoxic, aqueous solution of urea and water. Urea is a compound of nitrogen that turns to ammonia when heated.
Page 101 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 97 Diesel Exhaust Fluid (DEF) Handling When handling DEF solution, it is important that electrical connectors to be connected or well encapsulated. Otherwise there is a risk that the DEF will cause oxidation that cannot be removed.
Page 102 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Diesel Exhaust Fluid (DEF) Consumption DEF consumption is related to fuel consumption. A highway truck may travel 225-300 miles or more on one gallon of DEF. A gauge much like a fuel gauge will indicate the level of DEF in the tank.
Page 103: Drive Belt Replacement Intervals
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 99 Drive Belt Replacement Intervals If belts squeak or squeal, clean with hydraulic brake fluid or an approved cleaning fluid. Replace belts that are severely worn or frayed. Rib Cracking An in-service poly V-belt will go through several phases of cracking during its life.
Page 104 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Belts should not be replaced unless the ribs exhibit severe multiple cracking as shown below. Multiple cracking will lead to rib chunking. W0054004 Belt with Multiple Cracking W0054005 Belt with Severe Cracking and Rib Chunking...
Page 105 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 101 Rib Sidewall Glazing When the belt ribs appear to have a shiny surface that is hard and brittle, it is usually an indication of belt slippage. This is attributed to inadequate tension and/or extreme temperature.
Page 106 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Foreign Objects Any object protruding in the path of the belt drive and contacting the belt will cause damage and eventual failure. Locate the object before installing a new belt. (See ) W0054011 Damage from Object Protruding in Belt Path Noise, Vibration and Harshness (NVH)
Page 107 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 103 Possible Causes Insufficient belt tension may create a high-pitched howl (squeal) or rasping sound during engine acceleration or deceleration. Misalignment may cause a chirping noise, especially at, or near, idle speed. Rigid bracketing of accessories is a must for reasonably vibration-free belt spans.
Page 108 Before installing the new belt, ensure that the pulley grooves are clean and free of debris. Certain GU and CXU model chassis equipped MP7 engines utilize a 10-rib belt on 12-rib pulleys. When replacing the belt, the belt must be installed against the rear face of the pulley (edge of pulley closest to the engine) as shown in the illustration below.
Page 109 2. Automatic Tensioner 8. Accessory Drive Belt 3. Idler Pulley 9. Automatic Tensioner 4. Water Pump 10. Alternator 5. Main Drive Belt 11. Air Conditioner Compressor (if 6. Fan Drive equipped) Drive Belt Routing MACK MP7 and MP8 engines, all models.
Page 110 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU W0054041 Drive Belt Routing MP10 Engine 1. Crankshaft Pulley 6. Fan Drive 2. Idler Pulley 7. Automatic Tensioner 3. Automatic Tensioner 8. Alternator 4. Water Pump 9. Accessory Drive Belt 5.
Page 111: Automatic Belt Tensioner Maintenance
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 107 Automatic Belt Tensioner Maintenance The automatic belt tensioner is designed to maintain proper belt tension throughout the life of the tensioner. The belt tensioner cannot be adjusted or repaired. At each D inspection interval or once per year, whichever occurs first, check the following: •...
Page 112 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU W0054014 Main Drive Belt Tensioner Belt Tracking Witness Mark 1. Acceptable (Witness Mark 2. Not Acceptable (Witness Mark Approximately Same Width as Belt) Tracking Off Edge of Pulley) • Remove the belt by using a 3/8 inch breaker bar to pull the tensioner back to the install stop.
Page 113 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 109 W0054015 Checking for Contact Between Arm and Spring Case...
Page 114 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Check for metal-to-metal contact between the arm and the end cap. Replace if contact is seen. W0054016 Checking for Contact Between Arm and End Cap Check for cracks in the tensioner body or for broken stops on the spring case. If either is seen, replace the tensioner.
Page 115: Turbocharger And Charge Air Cooler
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 111 Turbocharger and Charge Air Cooler DANGER WARNING If oil leaks internally from the DO NOT remove, attach, or tighten turbocharger to the engine intake, the turbocharger air intake ducting while oil acts as a fuel.
Page 116 Over time, there may be a build-up of dirt, mud, insects, etc., between the radiator and charge air cooler. Inspect for build-up and contact your authorized MACK Truck dealer, if necessary. Over time, dirt and insects will accumulate between the fins of the radiator, air conditioning condenser and charge-air-cooler.
Page 117 The use of a fin comb is also a good tool to loosen bugs and dirt from the fins. If dirt cannot be cleaned off with this procedure, consult your MACK Truck dealer. W2001496 Cleaning Charge Air Cooler and Radiator (typical radiator shown) Inspect the charge air cooler for cracks at every inspection.
Page 118: Preventive Maintenance Air Suspensions
Preventive Maintenance Air Suspensions Note: The following maintenance items should be performed on all air suspensions (including MACK AL, AL II, AL-401LH, MAXAIR 40/40A, MAXLITE 2040, MAXLITE 2040 EZ and Hendrickson PRIMAAX) at each B, C and D inspection interval, or every 40 234 Km (25,000 miles) or six months, whichever comes first.
Page 119: Steering And Brakes Maintenance
Dexron III for the power steering system. If the fluid has darkened, it indicates that the power steering system is running hotter than normal and the fluid is overheating. Take the vehicle to a MACK Truck dealer for troubleshooting the overheating and to have the fluid changed.
Page 120 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Brake System DANGER DO NOT use replacement parts anywhere in the brake system unless it conforms exactly to original specifications. A nonconforming part in your vehicles brake system could cause a malfunction, leading to loss of control of the vehicle resulting in severe personal injury or death.
Page 121 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 117 • The brakes on the rear drive axle(s) should always apply as indicated by movement of the slack adjuster. • The low-air warning buzzer and warning lamp should activate for at least two of the tests.
Page 122 MACK Truck dealer. Air Dryers Effective mid-September 2008, all MACK chassis are equipped with air dryers which utilize an oil coalescing desiccant cartridge which removes atomized oil and other particulate matter from the air system. The oil coalescing desiccant cartridge must be changed yearly.
Page 123: Tires, Wheels And Hub Maintenance
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 119 Tires, Wheels and Hub Maintenance Wheel Safety Information DANGER DO NOT attempt to repair wheels or tires unless you are trained and equipped to do so. Wheel and tire assemblies cannot be worked on without proper tools and equipment.
Page 124 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU DANGER DO NOT install tires with a load rating that is less than stated on the Certification Label in the door frame. The tire could be unintentionally overloaded, leading to an accident, causing serious personal injury or death.
Page 125 Check front and rear wheel nut tightness with a torque wrench. All disc wheels for MACK vehicles have a tightening torque of 610 Nm (450 lb-ft). Tighten the nuts in the correct sequence. Inspect bolts and nuts for signs of wear or cracks. Make sure that the bolts are not bent.
Page 126 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Tire Inflation and Wear WARNING DO NOT operate the vehicle with under-inflated tires. Always keep your tires inflated to the manufacturers recommendation. Increased flexing in the tire sidewall produces heat. The heat can build to the point of blowing the tire out causing an accident.
Page 127 Dual mounted wheels should always be of the same type and diameter (maximal diameter difference allowed is 6 mm [1/4 in]). MACK Inc. is committed to repair procedure 642 (RP 642), American Tire Association (ATA) and The Maintenance Council (TMC).
Page 128 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Typical Wear Patterns Incorrect Air Pressure A. Air pressure too high gives rapid wear in the middle. B. Air pressure too low gives rapid shoulder wear. T1006457...
Page 129 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 125 Incorrect Camber Incorrect camber gives abnormal wear on one half of the tire. T1006458...
Page 130 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Incorrect Toe and Axle Alignment A. Incorrect toe-in B. Incorrect toe-out C. Out-of-line axle D. Steering arm defect T1006459...
Page 131 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 127 Dual Wheel Mounting A. Excessive road camber, different types of tire, different circumference or off-center loading give faster wear on one tire. B. Air pressure too low, mismatched rims for the tire type and dimension, excess flexing in tire wall, or different types of tires in inner and outer tires gives contact wear.
Page 132 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Incorrect Caster and Imbalance A. Caster angle B. Imbalance Also rapidly wears the mechanical parts of steering linkage, kingpin and wheel bearing. T1006460...
Page 133 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 129 Cuts in the Tire Tread A. Cuts B. Flaking cuts C. Rubber flaking Cuts are due to poor roads, air pressure too high or incorrect tire type. T1006720 Spot Wear Sudden braking, locking brakes or out-of-round brake drums give spot wear.
Page 134 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Feathered Edges Normal occurrence on non-driving wheels on good roads and high mileage. T1006722 Cupping Cupping is a normal occurrence that depends on the tread pattern; the higher the load, the greater the wear.
Page 135 SAE 30 or 15W40. The oil can be either petroleum based or synthetic (synthetic should not be used for the MACK axle). Axle oil, API GL-5, SAE 75W-90, can also be used. There are no set change intervals for hub lubrication. The only requirement is that if the hub is opened, the lubricant must be changed.
Page 136 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Unitized Front Hubs The non-tapered axle hubs are sealed with lubricant inside the hub and do not require lubrication. W1000213 Unitized Hubs, Non-Tapered Axle End...
Page 137 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 133 W1000212 Tapered Axle End...
Page 138: Chassis Maintenance
CXU, CHU, GU, TD, MRU and LEU Chassis Maintenance Springs Note: This work is best performed by a MACK Truck dealer or other service outlet having the proper equipment. The spring package is fastened to the axle beam with U-bolts. It is important that the U-bolt nuts are properly tightened.
Page 139 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 135 Spring Bushings When lubricating the springs, lift the axle off of the floor, suspend the frame with axle stands and lower the axle. The spring bushings are now in the position where grease can be added to the contact surfaces.
Page 140: Cab Maintenance
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Cab Maintenance Cab Air Filter To provide comfortable and clean fresh air in the cab, the heating and air conditioning system is designed with a replaceable filter. Under normal operating conditions the filter should be replaced every 6 months to ensure the efficiency of the heating and air conditioning system.
Page 141 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 137 Doors The door lock mechanism should be greased annually using white grease. Lubricate the door lock cylinder with liquid graphite annually, or more often in climates with a lot of snow and salt on the roads.
Page 142 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Hood The hood latch mechanism should be greased with white grease yearly. If the mechanism is hard to work or binds, the latch should be cleaned before greasing. C0029317 Rust Protection The rust protection applied when the cab was produced is adequate for normal use and service.
Page 143 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 139 Paint and Brightwork Care CAUTION When using a pressure washer to clean the vehicle, do not direct the spray at electrical components in the engine compartment such as the alternator, starter and compressors.
Page 144 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Stainless Steel Stainless steel will rust if exposed to salt for too long. Wash frequently, especially during the cold season, to remove salt-laden snow and ice. If rust appears, wash the surface and use a rubbing compound to remove the rust.
Page 145 Suede-like upholster can be cleaned with a soft cloth and mild soap solution. Leather Care MACK's Leather upholstery is manufactured with a protectant to repel soiling. Over time, sunlight, grease and dirt can break down the protection. Staining, cracking, scuffing, and fading can result.
Page 146: Lubrication
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Lubrication Chassis Lubrication DANGER Before working on or servicing a vehicle, set the parking brakes, place the transmission in neutral and chock the wheels. Failure to do so can result in unexpected vehicle movement and can cause serious personal injury or death.
Page 147 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 143 Lubrication Chart W1055585...
Page 148 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU The numbers in the Grease Coolant lubrication chart Hub Oil Aut. Transm. Fluid correspond with the numbered notes in Engine Oil Man. Transm. Oil the Lubrication Chart Hydraulic Oil Rear Axle Oil Notes section.
Page 149 API NLGI No. 2. When lubricating specification API NLGI No. 2. the left and right sides of the Note: Always grease a MACK front front springs, lift the axle off of axle with the wheels on the ground. the floor, suspend the frame with Note: To grease non-MACK axles, axle stands and lower the axle.
Page 150 50/50 mix. minimum levels on the sight glass. Add only the same type antifreeze, Only use MACK approved oils. that is: extended life or standard. Refer to function group 1 for the 14 Steering assist cylinder: Use approved oils list.
Page 151 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 147 axles use a lithium based grease 22 Fifth wheel: The fifth wheel with specification API NLGI No. 2. and slider assemblies should Also, lubricate the Brake, Cams, always be re-lubricated after Slack adjuster and Tie-rod ends.
Page 152: Oil Capacity Tables And Viscosity Charts
42 liters (44 quarts) 16L Aluminum 6 liters (6 quarts) 46 liters (49 quarts) 52 liters (55 quarts) Note: Check the dipstick and top-off as needed. MP7 and MP8 Engine Oil and Filter Change Intervals Heavy Severe Very Engine Operating Condition Med-...
Page 153 25,000) 15,000) 52 L (55 quart) oil capacity, standard in TD only hours hours Chassis Lubrication Normal Operation MP7, MP8, MP10 24000 (15,000) Demanding Operation MP7, MP8, 16000 (10,000) MP10 Electrical System Corrosion Protection MP7, MP8, MP10 Every 6 Months...
Page 154 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Clutch Hydraulic System Clutch system fluid DOT 4 brake fluid according to (SAE J 1703) Replacement interval Every 24 months Eaton Fuller Transmission 9,10, 13, 15 and 18-speed For oil quality and oil change intervals, see the manufacturers operators manual.
Page 155 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 151 Meritor Single RS23, 25, 26 and 30, Meritor Tandem RT40, 44 and 46 For oil change intervals, see the manufacturers operators manual Capacity RS23-160 19 liters (20 quarts) RS23-185 22.5 liters (23.5 quarts) RT40-145/160, front tandem...
Page 156 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Eaton Single; 23080, 23105, 26105 and 30105, and Eaton Tandem; DS405, DD405, DDH44 and DS462 For oil change intervals, see the manufacturers operators manual Capacity 23080 19 liters (20 quarts) 23105 and 26105 26.5 liters (28 quarts) DD404, front tandem DD404, rear...
Page 157: Service Check List
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 153 Service Check List Preventive Maintenance Note: Once you determine the applicable operating condition for your vehicle, use the information in the table below to perform preventive maintenance. TYPE OF CHECK / CHECK / ADDITIONAL...
Page 158 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU TYPE OF ADDITIONAL CHECK / CHECK / OPERATION CHANGE CHANGE SERVICE BASIC ANNUAL (4 MONTHS) (12 MONTHS) Check Batteries- Dirt, Leakage, Attachment, Specific Gravity of Battery Acid, Fluid Level Connections and Battery Box Check Fuel Tank,...
Page 159 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 155 TYPE OF ADDITIONAL CHECK / CHECK / OPERATION CHANGE CHANGE SERVICE BASIC ANNUAL (4 MONTHS) (12 MONTHS) Check Rear Spring Bolts Check Mounting for Front and Rear Axle Check Chassis Frame and Crossmembers...
Page 160 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU TYPE OF ADDITIONAL CHECK / CHECK / OPERATION CHANGE CHANGE SERVICE BASIC ANNUAL (4 MONTHS) (12 MONTHS) Check Transmission Oil Cooler hoses and Connections for leaks REQUIRED: Valve Adjustment Once a year, every 209 000 Km, (130,000...
Page 161: Service Charts
Regular maintenance inspections should be continued. The maintenance program and lubrication intervals that are listed in this manual may not suit your operation. Contact your nearest MACK Truck dealer, who can help with designing a maintenance program that works in your application.
Page 162 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Preventive Maintenance (See local Work Completed Sched- MACK Truck dealer for Service uled Ser- Information in group 17, Preventive Date Mileage vice Date Maintenance Basic Service and group 17,...
Page 163 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 159 Noise Control Log NOISE CONTROL SYSTEM MAINTENANCE LOG DATE MILEAGE MAINTENANCE MAINTENANCE PERFORMED FACILITY...
Page 164 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Repair Record Keep track of repairs being made. This helps over the lifetime of the vehicle to spot trends that can be used to alter maintenance schedules, for example. Repair Record Work Order or...
Page 165: Tire Record
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 161 Tire Record Tire Record Date Type Front Type Rear Notes (Tire Pressure, Tread Depths)
Page 166: Fuel And Oil Record
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Fuel and Oil Record Keeping track of the fuel and oil consumption gives a record of what is normal for the vehicle. This can be compared with other vehicles in the same service application to indicate what is normal fuel and oil consumption for a certain application.
Page 167: Engine Data
Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 163 Engine Data Consult your authorized MACK Truck dealer. Fill in the blanks for future reference Vehicle Identification Number (VIN) Engine Model Engine Serial Number Engine Power Rating Primary Fuel Filter Part Number...
Page 168: Literature
MACK vehicle. Your dealer has direct access to MACK Inc. for technical help, parts or service information. MACK Action Service (VAS), provides on-call assistance. For help, contact VAS directly: 24 hours a day at 1 (800) 528-6586 or 1 (800) 52-MACK. Also on the internet: www.vas.MACK.com. VAS offers: 1 Delivery Assurance If you need roadside assistance, VAS can arrange for load forwarding or equipment rental.
Page 169: Customer Service
Your satisfaction is our most important concern. If questions or complaints arise, first discuss the matter with the service manager at the MACK facility involved. If you are not satisfied with the service manager's response, contact the branch manager, principal or general manager of the distributorship.
Page 170 Operator's Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Addresses The addresses, telephone and fax numbers of the MACK Trucks, Inc. regional offices are: United States Northeast Region – 7900 National Service Road., Mail: P.O. Box 26259, Greensboro NC 27402 , TEL: (336) 291-9001 Southeast Region –...
Page 171 Description of unresolved service complaint or inquiry • Summary of action taken to date (by the dealer and the regional service office) • Names of individuals (if known) contacted at the dealer and the MACK Trucks, Inc. regional service office.

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