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36

VOLVO Engines

Exhaust Aftertreatment System

DANGER

The DPF/SCR 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. Failure to follow these
instructions can result in fire, which can
cause component damage, personal injury
or death.

CAUTION

The Diesel Particulate Filters (DPF),
Selective Catalytic Reduction unit (SCR)
and their components,

can not

be moved

or altered from the OEM installation in
any fashion. Any alterations may cause
component damage and is prohibited by
the law.

These components are part of the overall vehicle emissions control system. In normal
operation, these components can experience surface temperatures as high as 350° C (662°
F). It is important to verify the temperature at which the material or substance in, or
associated with, the body can ignite. If it is possible for the material or substance to fall or
leak from the body, take steps to prevent them from contacting or collecting on the DPF
or SCR. Failure to do so may result in fire.

It is important to note that additional shielding may, depending upon conditions and the
material or substance, trap flammable substances between the additional shield and the
DPF/SCR. If this condition can develop, advise the user of the vehicle to periodically check
to ensure there are no trapped substances.

Note: The DPF/SCR and associated components are part of a U.S. EPA and California
Air Resources Board (CARB) certified engine emissions system. These components
must not be moved, altered or modified in any way. Tampering with these systems
render the emissions warranty void and may result in possible tampering charges by
the EPA or CARB.

Summary of Contents for D13H

Page 1: ...Driver s Handbook VOLVO D13H Engine Operator s Manual PREVH PREVX B13R 9700 USCAN ...

Page 2: ... key components addressed in this document are represented as accurately as possible The National Highway Traffic Safety Administration NHTSA and Prevost should be informed immediately if you believe that the vehicle has a defect that could cause a crash injury or death Contact NHTSA by calling the Auto Safety Hotline at 1 888 327 4236 by writing to NHTSA U S Department of Transportation Washingto...

Page 3: ...Introduction 27 Fuel 28 Engine Oil 29 Engine Operation 30 Engine Overview D13H Left Side View 32 Engine Overview D13H Right Side View 33 Exhaust Emissions and Aftertreatment Diesel Particulate Filters DPFs 34 Exhaust Aftertreatment System 36 DPF Systems 38 Selective Catalytic Reduction SCR 39 Aftertreatment Hydrocarbon Dosing System 42 Diesel Exhaust Fluid DEF 43 Aftertreatment Control Module ACM ...

Page 4: ...issions Control System Warranty 58 Federal Emission Requirements 58 Emission Control System Warranty California 59 Emissions Control System Warranty 62 Engine Brake 64 Engine Components Service Schedules 65 Cooling System 66 General Coolant Information 66 Regular Coolant Change Interval 69 Extended Life Coolant Change Interval 69 ...

Page 5: ...an unsafe practice that could result in serious personal injury or death A danger advisory banner is in white type on a black background with a black border WARNING Warning indicates an unsafe practice that could result in personal injury A warning advisory banner is in black type on a gray background with a black border CAUTION Caution indicates an unsafe practice that could result in damage to t...

Page 6: ......

Page 7: ...ion in this manual refers to VOLVO components and VOLVO drivetrain For detailed information on non VOLVO drivetrains contact your nearest Prevost Service Center Establish a Preventive Maintenance Program with the help of your Prevost Service Center Provider A Preventive Maintenance Program makes it possible to maximize the amount of time your vehicle is up and running resulting in longer component...

Page 8: ... you to get the operating economy and performance that you expect from this quality vehicle All information illustrations and specifications contained in this manual are based upon the latest product information available at the time of publication If any questions arise concerning the current status of Federal or state laws the appropriate Federal or state agency should be contacted Note Illustra...

Page 9: ...ng or rending inoperative such devices after the sale and delivery of an engine or vehicle to an ultimate purchaser can be subject to penalties of up to 3 750 per incident Any dealer or manufacturer who violates these provisions can be subject to penalties of up to 37 500 per incident Canada The same conditions that apply in the USA apply to Canada with one exception After the vehicle is sold to a...

Page 10: ...otor vehicle or motor vehicle engine such written instructions for the maintenance and use of the vehicle or engine by the ultimate purchaser as may be reasonable and necessary to assure the proper functioning of emission control devices and systems This section also covers the requirements of the emissions regulations promulgated under the Motor Vehicle Safety Act in Canada ...

Page 11: ...nd delivery to the ultimate purchaser Note For specifics of the prohibited vehicle engine modifications refer to the Volvo Bus or Prevost documentation Noise Emissions Prevost warrants to the first person who purchases this vehicle for purposes other than resale and to each subsequent purchaser that this vehicle as manufactured by Prevost was designed built and equipped to conform at the time it l...

Page 12: ... preserve a comprehensive record It is recommended that copies of all noise emissions related maintenance invoices be retained The following Noise Control System inspection and maintenance instructions contain suggested maintenance intervals These intervals may need adjustment in order to best accommodate the specific vehicle usage The following instructions only concern Noise Emissions related it...

Page 13: ...erature modulated cooling fan system Removal of the cooling fan shroud Removal or rendering inoperative of the air cleaner or air intake in line silencer Removal or rendering inoperative any vehicle body mounted sound insulation components Removal or rendering inoperative of the engine speed governor so as to allow engine speed to exceed the manufacturers specifications Removal of splash shields l...

Page 14: ... the fan when it turns on could be seriously injured Maintenance Visually inspect cooling system components for damage and or misalignment Primary system components requiring noise related inspection include fan blades fan clutch fan shroud fan ring and recirculation shields Check fan blades fan ring fan shroud belt tensioner and recirculation shields for any damage Verify that fan blades clear th...

Page 15: ...steners brackets and clamps for damage and tightness Regulatory Compliance Acts that constitute tampering with the Exhaust System Removing or rendering inoperative exhaust system components such as the pipes clamps etc Air Intake Air Induction System Maintenance Make sure the air intake system is intact Inspect components for damage misalignment and or leakage Primary system components requiring n...

Page 16: ...ousings 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 the engine to operate outside of the manufacturers specifications is not allowed and violates both warranty and legislatio...

Page 17: ...excessive exposure may cause serious illness or death DANGER Never operate the engine in an area where hydrocarbon vapors gasoline for example are present or are suspected to be present Hydrocarbon vapors can enter the air intake and over speed the engine causing severe engine damage and or an explosion and fire Serious personal injury or death could occur DANGER Never try to operate or work on th...

Page 18: ...ent training correct service literature and the proper tools Failure to follow this could lead to personal injury or making your vehicle unsafe WARNING Diesel engine exhaust and some of its constituents are known to the state of California to cause cancer birth defects and other reproductive harm ...

Page 19: ...re in place and properly secured Never put maintenance fluids into glass containers since glass containers can break Report all problems in a timely manner before they threaten the safety of operating the vehicle DO NOT work on the engine while it is running Make sure protective locks and covers are in their proper place DO NOT use high amperage electronic starting devices for jump starting the en...

Page 20: ... The VOLVO engine and replacement parts for it shipped from the factory are asbestos free VOLVO recommends the use of only genuine VOLVO 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 Fluid Penetration DANGER Always use a piece of paper or cardboard when checking for a leak Escaping fluid u...

Page 21: ...e hood DO NOT remove the coolant fill cap if the coolant in the surge tank is boiling Also do not remove the cap while the engine and radiator are still hot Scalding fluid and steam may be blown out under pressure if the cap is taken off too soon which can cause personal injury and damage to engine components W0001525 DO NOT touch any part of the engine while it is hot Allow the engine to cool bef...

Page 22: ...ling system the hot coolant can turn into steam Any contact with hot coolant or steam can cause severe burns The radiator and all heating system and radiator lines and hoses contain hot coolant Verify coolant level only by the markings on the expansion tank Open the filler cap only after the engine is stopped and cooled down Remove the filler cap slowly to relieve pressure Oils WARNING Hot engine ...

Page 23: ...lways wear protective glasses when working with batteries 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 Engine damage and severe injury and or death from burns or exp...

Page 24: ...flames sparks or hot surfaces Failure to follow these precautions can result in fire which can cause serious injury or death WARNING DO NOT store fuel containers in the vehicle They may leak explode and cause or feed a fire Empty or full they present a hazard that may lead to burns in the event of a fire W0001527 ...

Page 25: ...operly marked containers and away from all unauthorized personnel Store oily rags or other flammable material in a protective container in a safe place Remove all flammable material such as fuel oil and other substances before they accumulate on the engine DO NOT expose the engine to flames driving over burning ground DO NOT weld or flame cut on or around pipes or tubes that contain flammable flui...

Page 26: ...ther reproductive harm W0001523 Always work in a well ventilated space if the engine needs to be running and use a hose to route the exhaust to the outside Poisonous Substances DANGER Coolant is toxic risk of poisoning DO NOT drink coolant Use proper hand protection when handling Keep coolant out of reach of children and animals Failure to follow these precautions can cause serious illness or deat...

Page 27: ...e without warning Anyone near the fan when it turns on could be seriously injured W0001524 Never attempt adjustments or repairs while the engine is running see your authorized Prevost Service Center 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 Wear protective glass...

Page 28: ...this warning can result in serious personal injury or death DO NOT climb up on or jump off from the engine or stand on components that cannot support your weight Use an adequate ladder or scaffolding suitably situated Clean steps handholds and areas of the vehicle on which you will be working or are around Refer to the Operators Manual for proper entry and exit procedures ...

Page 29: ...ontrols or disengage the parking brake if the warning tag DO NOT OPERATE is attached to the ignition key or located on the dash Check with the person who attached the tag before starting Make sure no one is working on or close to the engine or components driven by the engine before starting it Always make an inspection of the engine before and after starting Diesel engine exhaust contains products...

Page 30: ...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 W0001484 ...

Page 31: ...ires Have all loose or frayed electrical wires tightened repaired or replaced before operating the vehicle Grounding Practices Proper grounding for vehicle and engine electrical and electronic systems is necessary for proper vehicle and engine performance and reliability Improper grounding will result in uncontrolled and unreliable electrical paths Uncontrolled engine electrical circuit paths can ...

Page 32: ...that may cause reduced power or shutdown under certain conditions The power output monitoring and idling features can only be programmed and or changed with electronic service tools and passwords Certain features such as low oil pressure high coolant temperature or low coolant level could cause the engine power and or vehicle speed to be limited and the engine may also shut down The shutdown will ...

Page 33: ...e at http www tc gc ca roadsafety menu htm On Call Assistance Prevost Action Service provides on call assistance For help contact Prevost Action Service directly 24 hours a day at 1 800 463 7738 Introduction The US2010 VOLVO D13H engines meet the very stringent new emissions standards which apply to all heavy duty diesel engines built after January 1 2010 for on highway coaches The new standards f...

Page 34: ...running at all Manufacturer s warranties are likely to be rendered void by usage of improper or incorrect fuel and usage of fuels other than ULSD fuel in diesel powered vehicles is illegal and punishable with civil penalties Use of fuel additives to compensate for the lower sulfur content is NOT recommended by Volvo Fuel sold for use in diesel powered engines for US 2010 vehicles may only contain ...

Page 35: ...ission compliant VOLVO engines Chassis equipped with a US 2010 emission compliant engine which can be identified by the presence of an Aftertreatment Selective Catalytic Reduction SCR system also require the use of ultra low sulfur diesel ULSD fuel EO O Premium Plus oils exceed the new API service category CJ 4 ...

Page 36: ...ter damage Note Some starters are equipped with starter protection If the engine is running the starter temperature is too high or the transmission is not in neutral starter engagement is inhibited Allow the engine to slow down and idle for 3 to 5 minutes before shutting it off This allows the turbo to slow down and the cooling system to dissipate the engine heat Switch the engine off by turning t...

Page 37: ...ivated the telltales come on along with display symbols and the buzzer is also activated After a brief time the engine shuts down Find a safe place to pull off the road as soon as possible After the engine has been shut down by the system turn the ignition key to the OFF position If necessary the engine can be restarted for a brief time so that the vehicle may be pulled off the road The alarm will...

Page 38: ... from the actual vehicle 1 Breather Tube 9 Fuel Filter 2 Intake Manifold 10 Hand Priming Pump 3 Air Compressor 11 Crankcase Ventilator 4 Power Steering Pump 12 Alternator 5 Fuel Pump 13 AC Compressor 6 Engine Control Module ECM 14 Alternator AC Compressor Belt 7 Fuel Filter 15 Fan Coolant Pump Belt 8 Fuel Water Separator 16 EGR Mixing Chamber ...

Page 39: ...or reference only and may differs slightly from the actual vehicle 17 Exhaust Manifold 24 Venturi Pipe 18 Valve Cover 25 Oil Filters 19 Intake Air Heater IAH optional 26 Oil Pan 20 Thermostat 27 EGR Cooler 21 Belt Tensioner 28 Turbocharger 22 Coolant Pump 29 Starter Motor 23 Coolant Filter 30 EGR Valve ...

Page 40: ... to 10 000 for each violation Modifications such as reprogramming of the fuel system so the engine will exceed the certified horsepower or torque or removing the mufflers are examples of illegal changes Changes should not be made to a certified engine that would result in an engine that does not match the configuration of an engine model that is currently certified to meet Federal Standards Mexico...

Page 41: ...t DPF with Vertical SCR Catalyst W2081002 1 Diffuser AssemblyAftertreatment 2 Catalytic Converter 3 DEF Injection Nozzle 4 Diesel Particulate Filter DPF 5 Diesel Oxidation Catalyst DOC 6 DEF Pump 7 Aftertreatment Control Module 8 Aftertreatment DEF Tank ...

Page 42: ...F It is important to verify the temperature at which the material or substance in or associated with the body can ignite If it is possible for the material or substance to fall or leak from the body take steps to prevent them from contacting or collecting on the DPF or SCR Failure to do so may result in fire It is important to note that additional shielding may depending upon conditions and the ma...

Page 43: ...ed automatically The soot breaks down to safer substances before being released to the atmosphere Some of the ash remains but takes a long time to reach the point where ash clogs the filter Cleaning a filter so it can continue to function is called regeneration Depending on vehicle usage the engine utilizes a passive or parked regeneration system Either system uses high heat to break down the chem...

Page 44: ...ed cooling or wind only self convection Note These are not maximum temperatures The surface temperature in a certain vehicle installations is dependent on the degree of encapsulation and the airflow around the muffler Compact DPF Temperatures Position Thickness of Heat Insulation at exhaust temperature of 350 C 662 F at the DPF muffler inlet no regeneration at exhaust temperature 450 C 842 F at th...

Page 45: ... gases Modern diesels already use exhaust aftertreatment systems called diesel particulate filters to control emissions of another pollutant soot also known as particulate matter or PM SCR works by injecting Diesel Exhaust Fluid DEF into the exhaust steam after the DPF DEF is a safe simple solution of water and urea DEF works with the heat of the exhaust and a catalyst to convert NOx into nitrogen...

Page 46: ...SCR muffler inlet at exhaust temperature 450 C 842 F at the SCR muffler inlet Casing all round Muffler filled with insulation 75 C 167 F 125 C 257 F End wall in outlet side 20 mm 0 78 in 100 C 212 F 150 C 302 F End wall other side 20 mm 0 78 in 125 C 257 F 200 C 392 F Mounting strap area No insulation 225 C 437 F 300 C 572 F ...

Page 47: ...s of a Aftertreatment DEF tank positioned near the standard diesel tank plus a Aftertreatment DEF pump Aftertreatment DEF Dosing unit and SCR catalyst The advantage of using DEF is that it enables the engine to use less EGR and higher oxygen levels for better combustion while meeting the EPA near zero NOx emissions requirement of 0 2 g hp hr NOx By using DEF we avoid the disadvantages of increasin...

Page 48: ...released The injected fuel will increase the EGT by oxidation of hydrocarbon An aftertreatment diesel oxidation catalyst DOC is mounted upstream of the aftertreatment diesel particulate filter DPF This elevated temperature is needed for the aftertreatment selective catalytic reduction SCR system and DPF The HC system shall be governed by the engine control module ECM The dosing system has interfac...

Page 49: ...f DEF solution 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 Water or compressed air do not help since DEF quickly oxidizes metal If a connector comes into contact with the DEF solution it must be replaced immediately to p...

Page 50: ...ehicle Rinse off these crystals with water Note Do not flush DEF spills into the normal drain system WARNING DEF spilt onto hot components will quickly vaporize Turn your face away Diesel Exhaust Fluid DEF Consumption DEF consumption is related to fuel consumption A bus may travel 225 300 miles 360 480 kilometers or more on one gallon 3 8 liters of DEF A gauge much like a fuel gauge will indicate ...

Page 51: ...rn Valve Aftertreatment DEF Tank Level Sensor The ACM also monitors the following values in the exhaust aftertreatment system Aftertreatment DEF Dosing Absolute Pressure Aftertreatment DEF Tank Temperature Aftertreatment DEF Tank Level Aftertreatment DPF Inlet Outlet Temperature Aftertreatment DPF Differential Pressure NOx Sensors The ACM is a stand alone module Depending on your configuration it ...

Page 52: ...nsors are needed for US 2010 vehicles One sensor is positioned on the DPF muffler outlet the other on the exhaust pipe after the SCR muffler on the SCR muffler outlet vertical version Note The Smart NOx sensors should not be moved or modified in anyway To do so would inhibit the proper operation of the Aftertreatment system ...

Page 53: ...VOLVO Engines 47 W2081003 NOx Sensor Locations for Vertical SCR ...

Page 54: ...tor Driver Information Display Screen 100 to 12 Aftertreatment DEF Tank Level Gauge None None 12 Aftertreatment DEF Tank Level Gauge W2029416 Solid indicator Low DEF level Refill to avoid Engine derate 0 Aftertreatment DEF Tank Level Gauge 1 DEF Remaining W2029415 Blinking indicator DEF Tank Empty Engine in derate Refill to avoid 5 Mph 0 Aftertreatment DEF Tank Level Gauge AND either 1 Vehicle sta...

Page 55: ...ected 4 hours of operation W2029417 SCR perfomance low Engine in derate 5 Mph in xxx mins Poor DEF quality DTC initially detected 4 hours of operation AND either 1 Vehicle stationary for 20 minutes or 2 Diesel Fuel Refueling 15 with parking brake engaged W2029417 SCR Performance low Engine in derate 5 Mph at next stop By means of 1 engine start or use of a service tool temporary exit from 8 Km h 5...

Page 56: ...oring cycle then 8 Km h 5 mph is resumed after the vehicle is stationary for 20 minutes After one engine start has been exhausted then a Tech Tool is required to exit the 8 Km h 5 mph road speed limit With Tech Tool DTC Clearing Invoke 25 torque reduction until there is a proper DEF quality evaluation If poor DEF Quality is detected during the next monitoring cycle then 8 Km h 5 mph is resumed aft...

Page 57: ...ed acts of tampering will result in more severe Inducement Triggers Lamp Status Driver Information Display Screen No fault None None Tampering Fault Detect Note For examples of various SCR sensor tampering types refer to the SCR Tampering table below W2029417 SCR system fault Engine derate in xxx mins Second Drive Cycle with Active DTC W2029417 W3031200 SCR System Fault Engine in derate 5Mph in xx...

Page 58: ...SCR system fault Engine in derate 5 Mph at next stop Active tampering DTC iniatilly detected 4 hours of operation AND eitrher 1 Vehicle stationary for 20 minutes or 2 Diesel Fuel Refueling 15 with parking brake engage W2029417 W3031200 SCR system fault Speed limited to 5 Mph ...

Page 59: ...53 ...

Page 60: ...s by misfilling of diesel or DEF in the wrong tank may result in vehicle malfunction Results of Misfilling DEF in Diesel Tank Engine may run poorly or not at all Engine injectors may be damaged Exhaust system corrosion may occur between engine turbocharger and Aftertreatment DPF On Board Diagnostic OBD Diagnostic Trouble Codes DTC Costly repairs Results of Misfilling Diesel in Aftertreatment DEF T...

Page 61: ...ent DPF replacement within useful life the manufacturer must pay for the replacement however a random failure within the useful life is covered only per the above warranty provisions 2 First maintenance interval in life of the engine is allowed at 160 000km 100 000 miles 3000 hours ...

Page 62: ...ligation under this warranty is limited to the repair or replacement at Prevost s option of any part s of the Emission Control Systems of such engine and or vehicle found to be defective upon examination by Prevost and provided that such part s were returned to Prevost or its nearest authorized Service Center within a reasonable period of time Qualifications and Limitations Note Not covered by the...

Page 63: ...lter DPF Assembly A Aftertreatment DPF Assembly with Aftertreatment Diesel Oxidation Catalyst DOC Aftertreatment Hydrocarbon Doser HCD Diffuser Pipe Aftertreatment Hydrocarbon Doser Mounting Fuel lines to Aftertreatment Hydrocarbon Doser Aftertreatment Fuel Shutoff Valve Aftertreatment Fuel Pressure Sensor Discharge Recirculation Valve DRV Heat Mode Discharge Recirculation Valve DRV Solenoid Engin...

Page 64: ...s in workmanship only Normal maintenance such as cleaning ash from the filter at regular maintenance intervals and cleaning the Aftertreatment fuel injector on Diesel Oxidation Catalyst DOC DPF systems is not covered by the emission warranty With the Thermal Regeneration DPF system cleaning the ignition electrodes and fuel injection nozzle at the regular maintenance intervals is considered normal ...

Page 65: ...documentation Emission Control System Warranty California The California Air Resources Board and Prevost are pleased to explain the California emission control system warranty on your new motor vehicle engine In California new motor vehicle engines must be designed built and equipped to meet the State s stringent anti smog standards Prevosti must warrant the emission control system on your engine ...

Page 66: ...to comply with all State of California emissions regulations applicable at the time of manufacture of the engine and to be free from defects in material and workmanship under normal use and service up to 60 months or 160 000 km 100 000 miles whichever occurs first provided all Prevost maintenance requirements are followed as described in this manual All warranty periods are calculated from the dat...

Page 67: ...ANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES AND REPRESENTATIONS OR CONDITIONS STATUTORY OR OTHERWISE EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ...

Page 68: ...ses before Separator 14 Aftertreatment Wiring Harness 15 Aftertreatment Control Module ACM 16 Aftertreatment Diesel Particulate Filter DPF Assembly A Aftertreatment DPF Assembly with Aftertreatment Diesel Oxidation Catalyst DOC Aftertreatment Hydrocarbon Doser Diffuser Pipe Aftertreatment Hydrocarbon Doser Mounting Fuel lines to Aftertreatment Hydrocarbon Doser Aftertreatment Fuel Shutoff Valve Af...

Page 69: ...l Exhaust Fluid DEF Pump Aftertreatment DEF Dosing Absolute Pressure Sensor Aftertreatment DEF Return Valve Aftertreatment DEF Dosing Valve Aftertreatment DEF Tank Aftertreatment DEF Tank Heater Sender Aftertreatment DEF Tank Heater Aftertreatment DEF Tank Heater Valve Aftertreatment DEF Tank Temperature Sensor Aftertreatment DEF Level Sensor Aftertreatment DEF Heated Lines 19 Instrument Cluster R...

Page 70: ...exhaust brake is engaged When the Engine Brake button 2 HIGH is depressed both the exhaust brake and the compression brake are activated The following conditions must be met Engine Brake button 1 LOW or 2 HIGH depressed Engine Brake Transmission Retarder selector switch is set to Engine Brake position selector switch can be found on the dashboard only if the vehicle is equipped with both systems V...

Page 71: ...2 months whichever comes first Valves Engine Injectors Adjust 400 000 250 000 or 24 months whichever comes first Catalyzed DPF Filter If equipped Change 400 000 250 000 or 4 500 hours whichever comes first Aftertreatment Diesel Exhaust Fluid Dosing Valve Clean 240 000 150 000 or 4 500 hours whichever comes first Aftertreatment Diesel Exhaust Fluid DEF Pump Filter Change First Change 161 000 100 00...

Page 72: ...e still hot Scalding fluid and steam may be blown out under pressure if the cap is taken off too soon and can cause personal injury WARNING Coolant may be combustible Coolant leaked or spilled onto hot surfaces or electrical components can cause a fire Clean up coolant spills immediately CAUTION Prevost and Volvo Bus Corporation does not recommend using plain water in the cooling system Water alon...

Page 73: ...evel is allowed to go below the bottom of the tank there is the risk of the engine shutting down See the operators manual for more information on the warning functions 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 prov...

Page 74: ... with the engine running The engine fan can engage at any time without warning Anyone near the fan when it turns on could be seriously injured Before turning on the ignition be sure that no one is near the fan CAUTION Never add coolant to a hot or overheated engine Engine damage can result Allow the engine to cool first Additives Additives help prevent rust scale and mineral deposits from forming ...

Page 75: ...nded level during operation Consult engine service manual for proper SCA level and change intervals Extended Life Coolant Change Interval WARNING Hot engine Keep clear of all hot engine parts and fluids A hot engine and fluids can cause serious burns CAUTION DO NOT use a filter that contains SCA Damage to components can result CAUTION Extended life coolant will test as out of additives SCA but SCA...

Page 76: ...Last page Volvo Bus Corporation Göteborg Sweden 89083418 English 3 2013 ...

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