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Bild in der Größe
215×70 mm einfügen
Operating Instructions
OM 904 LA – OM 906 LA – OM 926 LA
EU Level III A (EU 97/68/EC)
EPA TIER 3 (US EPA 40 CFR Part 89)
Related Manuals for Mercedes-Benz OM 904 LA
Summary of Contents for Mercedes-Benz OM 904 LA
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Page 1
Bild in der Größe 215×70 mm einfügen Operating Instructions OM 904 LA – OM 906 LA – OM 926 LA EU Level III A (EU 97/68/EC) EPA TIER 3 (US EPA 40 CFR Part 89) -
Page 2
Symbols Optional equipment Warning Environmental note Possible vehicle damage Action required Sequence of actions (several ) Continuation symbol Continuation symbol for a warning Page reference page -> Term in the glossary of technical terms Display Displays in the multi-function display… -
Page 3
Internet Editorial office Further information about You are welcome to forward any queries Mercedes-Benz vehicles and or suggestions you may have regarding about DaimlerChrysler AG can be these Operating Instructions to the found on the following websites: technical documentation team at the following address: www.mercedes-benz.com… -
Page 4
This will help you to make opti- Instructions also describe items of option- mum use of the engine and avoid endan- Your nearest Mercedes-Benz Service al equipment where their operation re- gering yourself and others. Centre will be happy to assist you further quires explanation. -
Page 6: Table Of Contents
….. . 37 OM 904 LA overview … . 10 Genuine Mercedes-Benz parts .
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Page 7
Contents Winter operation ….52 Engine: oil change and filter Practical advice Cleaning/protective treatment . . . 54 replacement ….71 Malfunctions, causes Cleaning the engine . -
Page 8: Introduction
Introduction Protection of the environment Fuel consumption and engine wear depend Environmental note on the operating conditions. DaimlerChrysler’s declared policy is one of Therefore: integrated environmental protection. This do not warm up the engine at idle speed policy starts at the root causes and encom- switch off the engine during periods in passes in its management decisions all the stationary traffic…
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Page 9: Operating Safety
Introduction Operating safety The operating safety of an engine primarily depends on its proper installation into the Risk of accident complete system (e.g. vehicle, machine, etc.). However, as the operator, you also Engine damage arising from incorrect oper- have a direct influence on the safe opera- ation could result in an accident.
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Page 10: Correct Use
DaimlerChrysler recommends that you use a Mercedes-Benz Service Centre for this Correct use of the engine includes adher- purpose as it has the necessary specialist ing to these Operating Instructions, adher- knowledge and tools for the work required.
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Page 12: At A Glance
At a glance OM 904 LA overview OM 906 LA/OM 926 LA overview Location of sensors Engine number…
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Page 13
At a glance OM 904 LA overview… -
Page 14
At a glance OM 904 LA overview 1 Poly-V-belt tensioning pulley 2 Coolant pump 3 Coolant line heater supply* 4 Crankcase breather 5 Oil filler opening 6 Fuel filter 7 Fuel prefilter 8 MR (engine control) unit 9 Dipstick… -
Page 15
At a glance OM 904 LA overview… -
Page 16
At a glance OM 904 LA overview 1 Starter motor 2 Flywheel housing 3 Exhaust gas turbocharger 4 Exhaust manifold 5 Charge-air housing 6 Charge-air pipe connection from the intercooler 7 Charge-air pipe connection to the intercooler 8 Oil filter… -
Page 17
At a glance OM 906 LA/OM 926 LA overview… -
Page 18
At a glance OM 906 LA/OM 926 LA overview 1 Poly-V-belt tensioning pulley 2 Coolant pump 3 Coolant line heater supply* 4 Crankcase breather 5 Oil filler opening 6 Fuel filter 7 Fuel prefilter 8 MR (engine control) unit 9 Dipstick… -
Page 19
At a glance OM 906 LA/OM 926 LA overview… -
Page 20
At a glance OM 906 LA/OM 926 LA overview 1 Starter motor 2 Flywheel housing 3 Turbocharger with wastegate valve 4 Exhaust manifold 5 Charge-air housing 6 Charge-air pipe connection from the intercooler 7 Charge-air pipe connection to the intercooler 8 Oil filter 9 Alternator… -
Page 21
At a glance Location of sensors OM 904 LA (OM 906 LA/OM 926 LA comparable) -
Page 22
At a glance Location of sensors 1 Combined oil temperature/pressure sensor 2 Coolant temperature sensor 3 Fuel temperature sensor 4 TDC sensor (on the camshaft sprocket) 5 Crankshaft position sensor (on the flywheel) 6 Combined charge-air pressure/ temperature sensor… -
Page 23: Engine Number
At a glance Engine number Location Information on the engine The engine number is located on the rear As well as the name of the manufacturer, right-hand side, beneath the exhaust man- the following data is listed: ifold (arrow). Information on the engine 1 Engine model designation 2 Engine number 3 Type approval number…
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Page 24: Before Commissioning
Before commissioning General information Transport and installation…
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Page 25: Type Designation
Before commissioning General information Type designation OM 9XX L A Oil engine (diesel engine) Engine model Intercooler A Exhaust gas turbocharger Engine data card The engine data card (A4 sheet) forms an Engine data card integral part of the documents belonging to the engine and should always be kept with the Maintenance Booklet.
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Page 26: Description Of The Engine
General information The engines produce particularly low emis- Description of the engine sions. Injection start, injection period and The OM 904 LA (four cylinder) and injection quantity are controlled fully elec- OM 906 LA/OM 926 LA (six cylinder) en- tronically.
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Page 27: Engine Brake*/Constantly-Open
Before commissioning General information Engine brake*/constantly-open throttle valves* Hydraulic constantly-open throttle valves To increase the braking power, the engine can be equipped with an exhaust brake The constantly-open throttle valves are valve on the exhaust gas turbocharger in not actuated in the lower engine speed conjunction with constantly-open throttle range between 900 and 1,300 rpm or if valves on the cylinders.
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Page 28: Flame-Start System
Before commissioning General information The engine brake is controlled by the FR A flame glow plug is fitted in the charge Flame-start system* (drive control) unit ( page 29) or the pressure pipe of the intercooler. Fuel can The flame-start system is a cold-start aid ADM.
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Page 29: Grid Heater
Before commissioning General information Following the preglow time, which is de- Grid heater* pendent on the ambient temperature The grid heater is a cold-start aid for low (maximum 20 seconds), the flame-start ambient temperatures. A heating strip in- system is activated and the flame-start tegrated in the intercooler charge pressure system indicator lamp goes out.
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Page 30: Telligent ® Engine System
Before commissioning General information MR (engine control) unit (mounted on The MR (engine control) unit processes ® Telligent engine system the engine) data from the drive control unit or the The engine has a fully electronic control ADM, indicating for example the position The MR (engine control) unit is mounted on system, which, in addition to the engine of the position sensor (accelerator pedal),…
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Page 31
Before commissioning General information This data is evaluated along with data from the sensors on the engine, such as those All the information on the control unit for: type plate is required to obtain a re- charge-air pressure and temperature placement engine control unit. -
Page 32
Before commissioning General information ® FR (drive control) unit or ADM (mounted The FR (drive control) unit or the ADM re- If the Telligent engine system detects a on the equipment) ceive data from the: fault, this is stored in the control units as a fault code, which can then be read using The engine can be adapted to meet various operator (position of the position sen-… -
Page 33
Before commissioning General information Organisational measures All universally applicable, country-specific, legal and other mandatory regulations for accident prevention and protection of the Risk of injury environment must be observed in addition to these Operating Instructions. Before operating the engine, please read these Operating Instructions and other rele- vant documentation, such as the operating instructions for the vehicle or the machine… -
Page 34: Transport And Installation
Before commissioning Transport and installation Transport and installation Transport Risk of injury The engine can break loose and cause injury to persons by overturning or falling. Only lift the engine by the appropriate lifting points on the engine. Only use transport equipment that has been approved for use by DaimlerChrysler.
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Page 35
36) sections. The “Technical data” section of these Op- erating Instructions contains information required for the installation of the engine. Please consult a Mercedes-Benz Service Centre if you have any questions. The engine is filled with engine oil at the factory. -
Page 36: Safety
Safety Safety precautions Staff qualifications Conversion parts and modifications to the engine Safety/emergency running programs Genuine Mercedes-Benz parts…
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Page 37
Safety Safety precautions The safety precautions in this section must be observed to prevent injury to persons Note that for electric welding work, The control units must be removed and damage to the engine, components the batteries must be disconnected if temperatures of over 80 °C and cable harness. -
Page 38
Mercedes-Benz recommends that you use a Mercedes-Benz Service Centre for this pur- pose. -
Page 39
Mercedes-Benz recommends that you use a Mercedes-Benz Service Centre for this pur- pose. Tampering with the fuel-injection sys-… -
Page 40
® play on vehicles with the Telligent quired. engine system (vehicle diagnostics Mercedes-Benz recommends that you use a system). Mercedes-Benz Service Centre for this pur- The engine is switched to the appropri- pose. -
Page 41
Mercedes-Benz Service vehicle modification that: Centre. changes the type of machine/ vehicle… -
Page 42: Operation
Operation Starting the engine for the first time Monitoring engine operation Stopping the engine Winter operation Cleaning/protective treatment Service products…
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Page 43: Preparation
Coolant composition When it leaves the factory, the engine is see page 64). filled with an engine oil complying with Sheet 228.5 of the Mercedes-Benz Specifi- Filling the cooling system cations for Service Products. see page 92). These high-quality engine oils assist the…
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Page 44
Operation Starting the engine for the first time Refuelling Risk of explosion Use summer or winter fuel depending on Bleed the heated fuel prefilter with wa- the season. See also “Diesel fuels” ter separator* mounted on the vehicle Gases leaking from batteries may explode page 59). -
Page 45
Operation Starting the engine for the first time Starting the engine for the first time ® For additional safety, the Telligent Carry out the work listed under “Prepara- gine system is equipped with a function tion” ( page 40) before operating the en- that only allows the engine to be start- gine for the first time. -
Page 46
Operation Starting the engine for the first time Risk of injury Risk of injury Risk of poisoning There is a danger of limbs being caught, en- The cooling system is pressurised. Hot cool- There is a risk of poisoning if coolant is swal- trapped, crushed or torn off by rotating en- ant can escape under pressure when the lowed. -
Page 47
Operation Starting the engine for the first time Check the engine oil level approximate- ly 5 minutes after stopping the engine If a heating system is connected to the and add oil up to the maximum mark on cooling system, all heating system the dipstick if necessary. -
Page 48: Starting The Engine
Operation Starting the engine for the first time Starting the engine At outside temperatures of below –30 °C, Mercedes-Benz recommends Risk of accident and injury preheating the coolant (e.g. using an electrical preheating device) If not properly secured, a vehicle might acci-…
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Page 49
Operation Starting the engine for the first time To start the engine using the START button If the vehicle is equipped with a flame-start on the machine or on the engine: system* or grid heater*: The charge current indicator lamp and electronic system warning lamp must Wait until the flame-start system*/ go out after the engine has started. -
Page 50
Operation Starting the engine for the first time Flame-start system* Grid heater* Depending on the ambient tempera- The grid heater is activated by the FR or ture, the flame-start system* indicator ADM control unit. The preglow time de- lamp lights up: pends on the temperature of the cool- ant and charge air and is approximately for approximately 2 seconds (func-… -
Page 51: Monitoring Engine Operation
Operation Monitoring engine operation Charge current Oil pressure Make sure that the poly-V-belt contact The charge current indicator lamp must go surfaces are not damaged (e.g. torn), out after the engine has started. After the engine has reached normal oily or glazed as this could cause the operating temperature, the engine oil poly-V-belt to slip.
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Page 52: Telligent ® Engine System
Have the flame-start system checked at a specialist workshop. DaimlerChrysler rec- Electronic system warning lamp ommends that you use a Mercedes-Benz Service Centre for this purpose as it has The electronic system warning lamp must the necessary specialist knowledge and go out after the engine has started.
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Page 53: Grid Heater
Operation Monitoring engine operation Grid heater* The flame-start system is automatically deactivated if: The grid heater is malfunctioning if the the engine is not started within grid heater indicator lamp flashes. 30 seconds of the flame-start sys- tem indicator lamp going out the engine is started when the flame-start indicator lamp is lit the charge current indicator lamp…
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Page 54: Stopping The Engine
Operation Stopping the engine Stopping the engine Press STOP button 1 on the engine or Run the engine at idling speed for one or two minutes without load after oper- on the machine-mounted engine shut- ation at full power or a high coolant down facility.
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Page 55: Winter Operation
Operation Winter operation The following points should be observed at Jump-starting Coolant the start of the cold season: Risk of explosion Risk of injury Fuel The use of liquid or gaseous starting aids The cooling system is pressurised. Hot cool- can cause explosions.
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Page 56
Operation Winter operation Batteries Risk of poisoning Risk of explosion Have the batteries serviced and recharged more frequently during the cold months of There is a risk of poisoning if coolant is swal- Gases leaking from batteries may explode the year. lowed. -
Page 57: Cleaning/Protective Treatment
Never store care or cleaning products in and preservative agents is available Environmental note containers for comestibles such as bot- from any Mercedes-Benz Service Cen- tles so as to avoid confusion. Observe the regulations for environmental tre. Observe the instructions for using care protection.
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Page 58: Cleaning The Cooling System
Operation Cleaning/protective treatment High-pressure cleaners Cleaning the cooling system Risk of injury Observe the manufacturer’s operating in- structions. Environmental note The cooling system is pressurised. Hot cool- ant can escape under pressure when the Collect used coolant, cleaning solutions and cooling system is opened and scald your Maintain the minimum distance be- detergents and dispose of them in an envi-…
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Page 59
Operation Cleaning/protective treatment Degreasing Risk of poisoning Fill the cooling system with a 5% solu- tion of water and a mild alkaline clean- There is a risk of poisoning if coolant is swal- er, e.g. “P3 Croni” (50 g cleaning agent lowed. -
Page 60: Protective Treatment
Protective treatment Information is available from any The special protection required will de- Mercedes-Benz Service Centre. Con- pend on the length of time the engine is to sultation is strongly recommended. be out of use as well as the prevailing am- bient conditions in the place where the en- gine is to be located or stored.
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Page 61: Service Products
Consult a doctor immediately if a serv- Information about service products is ice product is swallowed. swallowed. available from any Mercedes-Benz Keep service products out of the reach Service Centre. Observe the relevant regulations when han- of children.
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Page 62: Diesel Fuels
Operation Service products Diesel fuels in extremely cold weather If summer diesel fuel or less cold-resistant Diesel fuels winter diesel fuel is used, only add a specif- At low outside temperatures, paraffin sep- Only use commercially available diesel fu- ic quantity of flow improver or kerosene aration may affect the flow characteristics els (EN 590).
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Page 63
Run the engine for a while to ensure that Flow improvers the additive reaches all parts of the fuel system. The effectiveness of flow improvers cannot be guaranteed with all fuels. Observe the manufacturer’s recommendations. Infor- mation about approved flow improvers is available from any Mercedes-Benz Service Centre. -
Page 64: Fame Fuels
Use only en- Before operation with any FAME fuel, a ly reduced. The engine oil change gine oils complying with Mercedes-Benz Service Centre must be and filter replacement must be car- Mercedes-Benz Specifications for consulted to clarify the precise proce- ried out at least once a year.
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Page 65
Infor- mation is available from any qualified The quality of hoses adjacent to the specialist workshop or Mercedes-Benz Serv- engine, and connected either to the ice Centre. vehicle or machine, must satisfy the… -
Page 66: Engine Oils
FAME fuels are reliable down to outside proved by Mercedes-Benz. These are listed connected to the use of a FAME fuel temperatures of approximately –20 °C in…
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Page 67: Coolant
Coolant is a mixture of water and anti- used. Information is available from any corrosion protection decreases over freeze /corrosion inhibitor. To protect Mercedes-Benz Service Centre. Select the time. against corrosion and raise the boiling SAE engine oil class in accordance with the…
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Page 68
°C The coolants described are biodegradable tor /antifreeze. Information is available Water % by vol. substances. Observe the legal requirements from any Mercedes-Benz Service Cen- and waste water regulations in the country Corrosion inhibi- max. 55 tre. concerned when disposing of used coolants. -
Page 70: Maintenance
Maintenance Maintenance instructions Work schedule overview Work schedules…
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Page 71
Familiarise yourself with the relevant legal tory, which complies with Sheet 228.5 regulations before starting work, e.g.: of the Mercedes-Benz Specifications All maintenance intervals and mainte- health as well as safety as well as acci- for Service Products, if more than nance work refer to genuine dent prevention regulations. -
Page 72: Maintenance Service
Renewal interval depends on the cool- condition and then during the 3rd, 5th, 7th main- ant additive used (see Mercedes-Benz tenance services and so on. Check for points of abrasion and incorrect Specifications for Service Products).
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Page 73: Work Schedules
Maintenance Work schedules Engine: checking for leaks and Lines and hoses on the engine: Risk of injury general condition checking for leaks and general condition Visual inspection of the engine for There is a danger of limbs being caught, en- signs of leakage.
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Page 74: Engine: Oil Change And Filter
Maintenance Work schedules Oil filter replacement Engine: oil change and filter replacement Only change the engine oil when the engine is at normal operating tempera- ture. Risk of injury Hot engine oil escaping under pressure can scald your skin and eyes. Wear suitable protective gloves, protective clothing and safety goggles.
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Page 75
Maintenance Work schedules Replace sealing ring 2 on cap 1 with To drain: To do this, pull out the dipstick and in- a new one. The sealing ring must be sert an extractor unit sealed with an Place a suitable collecting receptacle lightly greased. -
Page 76
Maintenance Work schedules Screw the oil drain plug back in with a Adding engine oil new sealing ring and tighten Add new engine oil to the engine via the Keep the engine running at idling speed Tightening torque: oil filler opening up to the maximum until an oil pressure reading is dis- M20 x 1.5 –… -
Page 77: Adjusting The Valve Clearance
Maintenance Work schedules Special tools Adjusting the valve clearance Risk of accident Turning tool 904 589 04 63 00 Valve adjustment tool 422 589 00 11 00 If not properly secured, a vehicle might acci- Valve clearance dentally be set in motion, knocking some- body down or trapping them or causing an Intake valves 0.40 mm…
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Page 78
Maintenance Work schedules Removing and fitting the cylinder head Removal: covers Remove engine ventilation hose 5 from cylinder head cover 1. Unscrew hexagon socket screw 2 from cylinder head cover 1 with seal- ing washers 3. Remove cylinder head cover 1. Installation: Clean the sealing surfaces of the cylin- der head and cylinder head cover 1. -
Page 79
Maintenance Work schedules Checking and adjusting the valve clearance Engine Crankshaft position Cylinder/valves to be adjusted OM 904 4th cylinder valve overlap 1st cylinder valve overlap – OM 906/926 LA 6th cylinder valve overlap 1st cylinder valve overlap – I – intake valve E –… -
Page 80
Maintenance Work schedules Use the turning tool to turn the crank- Concluding work shaft until the 4th or 6th cylinder is at Refit the cylinder head cover overlap TDC. (1st cylinder at ignition see page 75). TDC). Then turn the 1st cylinder to Remove the turning tool from the fly- overlap TDC (4th or 6th cylinder at igni- wheel housing inspection hole. -
Page 81: Fuel Prefilter: Cleaning The Filter Element
Maintenance Work schedules Unscrew oil filter cap 1 and filter ele- Fuel prefilter: cleaning the filter ment 2 out of the filter housing. element Clean oil filter cap 1 and filter ele- ment 2. Risk of fire There is an increased risk of fire when han- Replace a heavily soiled or damaged fil- dling fuels as they are highly flammable.
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Page 82: Heated Fuel Prefilter With Water Separator*: Replacing The Filter Element
Maintenance Work schedules Unscrew filter housing 2. Heated fuel prefilter with water separator*: replacing the filter Unscrew water separator 3 from filter element housing 2 and clean or replace as necessary. Risk of fire Refit in the reverse order. Use new seals.
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Page 83: Replacing The Fuel Filter Element
Maintenance Work schedules Replacing the fuel filter element Run the engine for approximately The fuel prefilter is fitted on the ma- 1 minute. The fuel system bleeds auto- chine or vehicle. Risk of fire matically. If the engine stalls or does Observe the operating and mainte- not start, bleed the fuel system manu- There is an increased risk of fire when han-…
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Page 84
Maintenance Work schedules Pull cap 1 with the filter element out Remove the cap and filter element. Un- of filter housing 3 slightly. Allow the clip the filter element by pressing the fuel to flow out. sides of the lower edge of the filter ele- ment. -
Page 85
Maintenance Work schedules Screw on the oil filter cap with filter Check the fuel filter for leaks with the element and tighten engine running. Tightening torque: 25 Nm. Start the engine and bleed the fuel To bleed the system manually, the ma- system. -
Page 86: Intake Pipe Between Air Cleaner And Engine: Checking For Leaks And General Condition
Maintenance Work schedules Check the poly-V-belt for damage sec- Intake pipe between air cleaner Poly-V-belt: checking condition tion by section; to do this, turn the en- and engine: checking for leaks and gine or poly-V-belt gradually using the general condition Risk of injury turning tool until the chalk mark is Check the rubber sleeves, intake pipes…
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Page 87
Maintenance Work schedules Damage patterns… -
Page 88
Maintenance Work schedules 1 Condition as new (as reference: trape- Removing and fitting the poly-V-belt zoidal ribs) Risk of injury 2 One-sided wear: wedge-shaped ribs 3 Cord visible at the base of the ribs The tensioning device is spring-tensioned. 4 Ribs split When it is loosened or tightened, there is a 5 Transverse cracks in several ribs risk of injury from crushing or entrapment in… -
Page 89
Maintenance Work schedules Poly-V-belt routing (engine without Poly-V-belt routing (engine with Check that both the tensioning device and the belt pulley are in perfect condi- refrigerant compressor) refrigerant compressor) tion (e.g. check for worn bearings on the tensioning device, tensioning pul- ley and guide pulleys as well as for wear on belt pulleys);… -
Page 90: Engine Brake*: Checking Condition And Setting
Maintenance Work schedules Checking condition Engine brake*: checking condition and setting Remove the wire circlip from the en- gine cylinder ball socket. Prise off the ball socket from throttle valve lever 1 ball neck. Check the engine brake cylinder, ball neck and ball socket as well as the throttle valve shaft for wear.
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Page 91: Engine Cooling System: Checking And Correcting The Fluid Level And The Antifreeze/Corrosion Inhibitor
Maintenance Work schedules Checking adjustment Engine cooling system: checking Risk of poisoning and correcting the fluid level and the antifreeze/corrosion inhibitor When the engine brake is applied, There is a risk of poisoning if coolant is swal- throttle valve lever 1 must make con- lowed.
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Page 92: Cooling And Heating System
Maintenance Work schedules Cooling and heating system: checking for leaks and general If the concentration is too low, there is Only check and correct the coolant lev- condition el when the coolant temperature is a risk of engine damage as a result of below 50 °C.
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Page 93
Maintenance Work schedules Check the radiators, coolant pump, en- gine oil radiator and engine cap for Risk of injury Risk of poisoning leaks. The cooling system is pressurised. Hot cool- There is a risk of poisoning if coolant is swal- Check that all cooling and heating sys- ant can escape under pressure when the lowed. -
Page 94
Maintenance Work schedules Remove the coolant expansion tank cap. Fit the pressure tester. Connect the compressed-air hose with tyre inflator connection to the valve and build up a test pressure equal to the cooling system opening pressure. The cooling system opening pressure can be determined from the code on the cap or pressure relief valve. -
Page 95: Renewing Coolant
Unscrew the cap slowly and release any excess pressure completely before opening the cap fully. Only use antifreeze/corrosion inhibitor Wear suitable protective gloves, protec- approved by Mercedes-Benz, (see tive clothing and safety goggles when specifications for service products). handling coolant. 1 Coolant drain plug…
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Page 96
Maintenance Work schedules Connect the drain hose to the coolant Clear blocked drainage openings of drainage connection on the radiator deposits. Observe any further information in the and drain the coolant. operating instructions from the Adding coolant Connect the drain hose to coolant machine/vehicle manufacturer. -
Page 98: Practical Advice
Practical advice Malfunctions, causes and solutions Jump-starting…
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Page 99
DaimlerChrysler recommends that you use quired. a Mercedes-Benz Service Centre for this Mercedes-Benz recommends that you use a purpose as it has the necessary specialist Mercedes-Benz Service Centre for this pur- knowledge and tools for the work required. -
Page 100
Practical advice Malfunctions, causes and solutions General troubleshooting Malfunction Cause Solution Starter pinion does not turn or turns too Battery is not sufficiently charged Charge the battery slowly Connecting cable to the starter motor is Tighten the cable on the terminal. If loose necessary, solder on a new terminal Starter motor solenoid switch malfunction… -
Page 101
Practical advice Malfunctions, causes and solutions Malfunction Cause Solution Engine does not start or stalls again imme- Incorrect engine oil viscosity Alter the engine oil viscosity to the con- diately ditions of use Engine starts poorly MR (engine control) unit malfunction Read out the MR (engine control) unit, have it checked at a qualified specialist workshop… -
Page 102
Practical advice Malfunctions, causes and solutions Malfunction Cause Solution Engine in emergency running mode Data flow interruption MR/ADM control Read out the malfunction memory of units the control units and have them checked at a qualified specialist work- shop Engine surges, vibrates or runs irregularly Crankshaft position sensor or camshaft Visit a qualified specialist workshop position sensor faulty or no signal… -
Page 103
Practical advice Malfunctions, causes and solutions Malfunction Cause Solution Poor engine output (lack of power) Charge-air system leaking, hose clamp on Check for leaks by a qualified specialist charge-air hose loose or faulty workshop Charge-air pressure sensor malfunction Check with diagnostic equipment and replace if necessary;… -
Page 104
Practical advice Malfunctions, causes and solutions Malfunction Cause Solution Engine cuts off too early (maximum engine FR or ADM control unit defective or incor- Visit a qualified specialist workshop speed cannot be reached) rectly programmed Engine gets too hot (according to coolant Not enough coolant in the cooling system Top up, bleed ( page 93) -
Page 105
Practical advice Malfunctions, causes and solutions Malfunction Cause Solution Charge current indicator lamp does not Bulb defective or supply line interruption Replace bulb or repair interruption light up while the engine is not running Charge current indicator lamp lights up Poly-V-belt too slack Check belt tensioner for proper opera- when the engine is running… -
Page 106
Practical advice Malfunctions, causes and solutions Malfunction Cause Solution Exhaust fumes are blue Oil level in the engine too high; crankcase Correct the oil level, have the crank- ventilation system faulty, engine oil enter- case ventilation system checked at a ing combustion chamber qualified specialist workshop Exhaust fumes are white… -
Page 107: Jump-Starting
Practical advice Jump-starting If the battery is discharged, the engine can be started using jump leads and a donor Risk of explosion When jump-starting the engine, the battery . maximum on-board voltage of 28 V Gases leaking from batteries may explode must not be exceeded (as this would and therefore cause injury.
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Page 108: Technical Data
Technical data Engine data Test values and adjustment values Tightening torques…
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Page 109
Technical data Engine data Dimensions in mm: (standard version, other versions on request) OM 904 LA A = Engine length 830 mm B = Engine width .645 mm C = Engine height 925 mm OM 906 LA OM 926 LA… -
Page 110
Type of cooling system Forced circulation cooling Combustion principle 4-stroke diesel direct injection Number of cylinders OM 904 LA/OM 924 LA: OM 906 LA/OM 926 LA: Cylinder bore OM 904 LA/OM 906 LA 102 mm OM 924 LA/OM 926 LA… -
Page 111
Technical data Engine data General data continued Displacement OM 904 LA: 4,250 cm /4,800 cm OM 906 LA/OM 926 LA: 6,370 cm /7,200 cm Direction of rotation of engine when looking at flywheel side of engine Anti-clockwise Starter Electric Coolant capacity of engine without intercooler OM 904 LA: 8.5 l… -
Page 112
Technical data Engine data Data: Starter motor, battery and alter- nator (standard) Starter motor Voltage 24 V Output 4.0 kW Battery (not in scope of delivery) Voltage 12/24 V Cold test current in accordance with DIN 72311 maximum 450 A Cold start ability without jump-starting and 75% battery charge down to maximum –20 °C Alternator… -
Page 113
Technical data Test values and adjustment values Engine oil pressure (minimum) at idling speed 0.5 bar at rated speed 2.5 bar Valve clearance Intake valve 0.4 mm Exhaust valve 0.6 mm… -
Page 114: Tightening Torques
Technical data Tightening torques Tightening torques All threads on mechanical parts and re- lated contact surfaces must be clean, smooth and lubricated with engine oil; other lubricants require significantly different tightening torques. Designation Engine block Bolt securing cylinder head cover to the cylinder head Bolt securing the oil sump to the cylinder crankcase Poly-V-belt tensioning device to the cylinder crankcase/to the hydraulic pump bracket/ to the support…
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Page 115
Technical data Tightening torques Designation Alternator to the support Alternator to the mounting Oil circuit Oil drain plug to the oil sump M20 x 1.5 thread M26 x 1.5 thread Alternator mounting to the oil filter Oil filter housing to the crankcase Oil filter housing support to the crankcase Oil filter cap to the oil filter housing Oil pressure sensor to the oil filter housing… -
Page 116: Index
Coolant level ….89 Stopping ….. . 51 Genuine Mercedes-Benz parts ..38 Cooling system Engine brake .
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Page 117
Index ® Jump-starting ….34, 104 Personnel ….. . 30 Telligent engine system .
1,83 Мб
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Год:
2005
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Страниц:
123
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Формат:
pdf
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Язык:
английский
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Размер:
1,83 Мб
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Категории: Руководства, Двигатели, Двигатели Daimler-Benz, Двигатели Mercedes-Benz, Двигатель Mercedes-Benz OM904, Двигатель Mercedes-Benz OM904LA, Двигатель Mercedes-Benz OM906, Двигатель Mercedes-Benz OM906LA, Двигатель Mercedes-Benz OM926, Двигатель Mercedes-Benz OM926LA, Двигатель Daimler-Benz OM904, Двигатель Daimler-Benz OM904LA, Двигатель Daimler-Benz OM906, Двигатель Daimler-Benz OM906LA, Двигатель Daimler-Benz OM926, Двигатель Daimler-Benz OM926LA
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Mercedes-Benz OM 904 LA Engine PDF User Guides and Manuals for Free Download: Found (2) Manuals for Mercedes-Benz OM 904 LA Device Model (Operating Instructions Manual)
More Engine Device Models:
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Carefree
R001189
CAREFREE TUBULAR MOTOR REPLACEMENT KIT RV Kits Kit No: R001189 FOR THE TUBULAR MOTORIZED FREEDOM WINDOW & OTDThis operation can be done while the awning is mounted on the RV. Use care to avoid damaging the walls etc. COMPONENT CHECKLIST Motor Screw#7 x 1/2” x2FIII046Clip (ref)MotorBearing (ref)Drive (ref) PRELI …
R001189 Engine, 3
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CHERUBINI
Plug & Play Plus
Plug&Play Plus ISTRUZIONI — INSTRUCTIONS — EINSTELLANLEITUNGENINSTRUCTIONS — INSTRUCCIONESIMOTORE TUBOLARE CON REGOLAZIONE MANUALEO AUTOMATICA DEL FINECORSA ELETTRONICOGBTUBULAR MOTOR WITH MANUAL OR AUTOMATICADJUSTMENT OF THE ELECTRONIC LIMIT SWITCHDROHRMOTOR MIT MANUELLER ODER AUTOMATISCHEREINSTELLUNG DER ELEKTRON …
Plug & Play Plus Engine, 12
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Briggs & Stratton
91200, 92200, 94200
Model SeriesCovered inThis Manual912009220094200Operating & MaintenanceInstructionsModel Type CodeMonth Day YearNote: General Model Series numbers noted above include many specific numberslike the ones on your engine. To get replacement parts or technical assistance inthe future, write your engine Model, Type, Code …
91200, 92200, 94200 Lawn Mower, 20
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Stafer
V6S-27/13
Gentile cliente, la ringraziamo per aver acquistato un prodotto STAFER. Questo manuale descrive le operazioni necessarie alla corretta installazione del prodotto V6S e V7S. Questo motore tubolare con finecorsa meccanico è idoneo alla movimentazione delle principali tipologie di avvolgibile. Le specifiche tecniche de …
V6S-27/13 Engine, 6
Recommended Documentation:
Руководство по эксплуатации, техобслуживанию и ремонту Mercedes-Benz Atego
Дизельные двигатели: OM 904 LA, OM 906 LA
Выпуск: с 2004 года
Язык: Русский
Формат: DjVu, PDF
Размер: 42,1 Мб
Скачать документацию Mercedes-Benz Atego
для распаковки архива используйте пароль — avtoproblem-net.ru
Welcome to the world of Mercedes-Benz
Familiarise yourself with your engine and read
the Operating Instructions before you use the
engine. This will help you to avoid endanger-
ing yourself or others.
The standard equipment and product descrip-
tion of your engine may vary, depending on
individual specifications. This is described on
the engine data card.
Mercedes-Benz constantly updates its
engines to the state of the art.
Mercedes-Benz reserves the right to make
changes to the following:
design
R
equipment
R
technical features
R
You cannot therefore base any claims on the
illustrations or descriptions in this manual.
The manual/instructions are comprised of:
Operating Instructions
R
Maintenance Booklet
R
Only for US-certified engines: «Emission
R
Related Warranty» supplement
Always keep these documents together with
the engine/vehicle/device. These docu-
ments should be passed on to the new owner
if you sell the engine/vehicle/device.
Please have warranty and ex gratia work car-
ried out at authorised workshops/Service
Centres.
For on-highway applications, contact a
R
Mercedes-Benz Service Centre.
For off-highway applications, contact an
R
MTU or MTU-authorised Mercedes-Benz
partner.
9265842181
É9265842181fËÍ