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Warnings and cautions in this manual are not complete because Shanghai Diesel Engine Co., Ltd. (SDEC) has no possibility and is not able to foresee all potential risks resulted from the failures to follow the safety cautions and operation instructions.
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Table of Contents Introduction ............................... 1 1.1 To the Owner and Operator ......................1 1.2 Scope ............................1 1.3 Notices for Engine Quality Feedback ..................1 1.4 Safety Notes ..........................1 1.5 Operation and Maintenance Notes ....................4 1.6 Warning Signs on the Engine ...................... 6 2 About Engine ............................
Since this manual ensures proper engine operation and maintenance, it should be given to the new owner when the engine is traded or sold. 1.2 Scope This manual is for the operation and maintenance of all models of D series electronically controlled diesel engine for application of agricultural equipment. 1.3 Notices for Engine Quality Feedback...
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●Be sure to work in a safe place, and be prepared for potential danger at any time. ●When working on the engine, remain alert at all times. Never work on the engine when physically or mentally fatigued. ●Do not smoke when working on the engine. ●Smoking is not allowed during fuel refilling, otherwise, fuel steam can cause fire easily.
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●The connection of the battery cable posts must be secured. Explosion may happen due to poor connection. Damaged wires or cables will cause fire. Check and replace them before reconnecting the wires and cables. ●Do not use fire, nor make welding near the battery(s) because battery can produce flammable hydrogen and oxygen. Do not use the battery(s) when its electrolyte is lower than the minimum level.
environment protection regulations when changing oil, oil filter, fuel filter or coolant. And discarded battery(s) must be also properly disposed. 1.5 Operation and Maintenance Notes Read and understand all notes and warnings before use and maintenance of the engine. Following notes and warnings must be followed to prevent the engine from fault or damage. ●Read this manual carefully, and be in strict accordance with operation instructions and maintenance procedures specified in this manual.
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●Do not plug a harness in and out without necessary. If necessary, plug it in and out when power is off to avoid its malfunction. ●Do not connect the jumper starting cables or charging cables to the wiring of the electronic control system. This can cause electrical damage to the control system.
1.6 Warning Signs on the Engine There are warning signs as below on the engine. They must be strictly observed to avoid personal injure or engine damage. 1) Warning signs 2) Caution sign 3) Reminding sign Tighten the cap in the direction of the arrow.
Four-valve, electronic-controlled Engine series Engine displacement/L Shangchai Power Note: Q-Vehicle, G-Construction machinery, D-Generation, C - Marine engine; C - Marine auxiliary Example: SC9DF340Q4 represents Shangchai Power D series 9-liter electronic-controlled four-valve vehicle diesel engine of 340 PS compliant with China IV...
Note: Air inlet mode is divided into three type:T means Turbo,TA means Turbo with water-air intercooler and TAA means Turbo with air-air intercooler. Example: 6DTAA8.9-G33 represents D series six cylinder 9-liter air-air intercooler turbo NO.3 spec diesel engine for power station compliant with China III.
Newton meter Parts per million (number) r/min Revolutions per minute 1.3 Engine nameplate The engine nameplate indicates the main technical data and information: model, order number, serial number, date of production, rated power and rated speed, which are a major basis for you to purchase service parts and for SDEC to conduct after-sale technical service.
1.4 Engine Outlines Below are the outlines of SC9DF375Q3 Diesel Engine Note: The figs below are for only reference. Outlines differ from one application to another due to different configurations. Exhaust outlet Fuel inlet joint Fuel return Fuel inlet joint Air compressor air outlet Air compressor...
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Coolant outlet Air Bleed joint Z3/4 Warm coolant tl t Drive pulley Coolant inlet Starter motor Coolant drain Oil filter M16×1.5Oil temp. sensor Oil drain plug Exhaust side view Compressor Compressor outlet Coolant filter control Turbine outlet Oil filler Engine air inlet Top view...
Chapter 2 Main Specifications and Parameters 2.1 Main specifications SC9DF/6DTAA8.9 Type Four stroke, water-cooled, in-line Displacement (L) 8.82 Bore (mm) 114×144 stroke (mm) Number of cylinders Number of valves per cylinder Aspiration turbocharged and charge air cooled (air-to-air intercooler) Compression ratio 16.4 Fuel injection equipment High-pressure common rail...
2.2 Main parameters SC9DF/6DTAA8.9 Lubrication system Oil pressure (kPa) At idle (Min. allowance) ≥100 At rated speed (Min. allowance) ≥300 Oil sump capacity (L) (oil dipstick “high”-“low”) 26.5 - 22.5 Total system capacity (L) About 30 Cooling system Thermostat Start-to-open temperature (℃) Full-open temperature (℃) Lift (mm) ≥10...
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Cold start current at -18C (A) (Reserve capacity current (A)** (320) Cold start current at 0C (A) (Reserve capacity current (A)** (240) Starter motor Voltage (V) Power (kW) Alternator Voltage (V) 28/14 Current (A) 55, 110 or 140@280V150A@/14V Rated power (kW) 1, 1.5, 3 or 4@28V/2@14V * Two sets of 12V batteries are installed in series, and each cold start current is calibrated at -18C.
2.3 Other technical requirements 2.3.1 Fuel Warning: Gasoline or alcohol is not allowed to be used with diesel, as their mixture may cause detonation. The quality of diesel fuel used for this engine should be not less than the requirement of national standard GB 19147. Main fuel specifications specified in the standard are as follows.
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2.3.2 Lube oil SDEC-designated special lubricating oil for D series diesel engine or oil of grade CH-4 and above is required for the SC9DF diesel engine in order to ensure its normal operation and long service life and improve its emissions. If the above engine oil is not available, oil of CH-4 grade or above meeting the requirements of American Petroleum Institute (API) can serve as an alternative.
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with good low-temperature characteristics shall be used. △Caution: The oil with low viscosity is helpful to startup the engine. Due to abrasion, continuous use can affect the service life of the engine, so try not to use or limit the use of such oil. △Caution: Use of lube oil with bad quality will cause much high oil consumption, early wear, or even piston scuffing.
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Ratio of ethylene 10:90 20:80 30:70 40:60 50:50 55:45 60:40 65:35 glycol and water Freezing point, °C -3.8 -7.5 -14.1 The recommended ratio of water and ethylene glycol is 50:50. △Caution: anti-freezing liquid is mandated for the engine as coolant for any climate. △Caution: It is required to discard or replace engine coolant every 385,000 km, 6,000 hours or 2 years (whichever comes first) in order to remove those harmful chemical sediments.
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DCA4 powder is recommended. The coolant filter can be helpful to keep correct content of DCA4 in coolant and can also remove impurity in coolant. So it is required to change the filter periodically. △ Caution: Replacement of coolant filter is required every 8,000 km, 250 hours or 3 months, whichever comes first.
2.4 Main-bolt and -nut tightening torque and methods Table 1 Torque specification for main fastening bolts Name Thread spec. Final torque Tightening method First: 50 N·m 125±5 N·m Main bearing cap bolts M16-4h6h Second: 120-130 N·m Final angle 210°±5° Third: angle 210°±5° First: 50N·m Cylinder head bolts 115±5 N·m...
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Cast iron Aluminum Cast iron Aluminum Note: the torque values given in the above table only applies to the threads of bolts and nuts that have been properly lubricated. Table 3 Recommended tightening torque for tapered screw plugs Specification of screw plug Torque/ N·m Effective thread Thread diameter...
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Table 4 Recommended tightening torque for banjo bolts Specification M81 M101 M121.25 M141.5 M161.5 M181.5 M201.5 M221.5 Torque/N·m Note: The torque described above is applicable to bolts made of steel, cast iron or aluminum substrate.
Chapter 3 Operation of Engine Oil, fuel and coolant with suitable specifications shall be chosen according to specific application environment and conditions before running the diesel engine. The selected oil, fuel and coolant shall comply with technical specifications as given in the Article 2.3. Correct and reasonable application will enable the engine to have a longer service life, a better work performance and a high economical efficiency.
protections and specific warm-up time shall be provided. The lube oil, fuel and coolant must be used properly according to different temperature ranges of local areas where the engine is operated. 3.1.3 Starting after long time out of operation When the engine has been out of use for more than 30 days, check the oil level and make supplement before starting.
Most failures will develop with a symptom. Observe the change of engine performance and sound of abnormality, or check if one of following signs occurs. If so, it is necessary to repair it. -misfire -abnormal smoke -abnormal vibration -power loss -abnormal noise -oil consumption increases -sudden change of oil pressure or coolant temperature...
3.4 Stopping After full-load operation and before shutdown, gradually reduce the engine speed and load, and run the engine for 3~5 minutes at the idle to let turbocharger speed fall considerably and let the engine cool down gradually and evenly so as to protect the turbocharger and engine.
Chapter 4 Maintenance of engine 4.1 Maintenance schedule It is recommended to maintain the SC9DF electronically controlled diesel engine according to the "Maintenance Schedule". The maintenance interval shall be shortened appropriately in case that the diesel engine is always operating in an area with ambient temperature lower than -18℃...
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Maintenance Interval for D Series Diesel Engines Scope On-road vehicles (tractors, Engineering Trucks (road tippers, Construction, road building trucks) truck mixers, truck cranes) and agriculture machines Maintenance First time Regular First time Regular service First time Regular interval service service...
4.2 Daily check and maintenance items Preventative maintenance work starts with understanding daily working conditions of the engine itself and its systems. Daily maintenance shall be made before starting the engine: Check oil level; Check coolant level; Check drive belt;...
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4.2.2 Check coolant level Coolant inlet Open the water filler cap or remove the plug on the inspection Inspection port port on the radiator or expansion tank to check the coolant level. Warning: The coolant filler cap or inspection port plug of the cooler can be unscrewed only after the engine Coolant coolant temperature falls below 50°C.
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The coolant fluid shall be added into the cooling system until the level reaches bottom surface of the coolant filler cap or inspection port of radiator or expansion tank. It shall be filled slowly in order to avoid air block, and wait for 2-3 min to allow the air to be exhausted fully.
close the valve fully. The primary fuel filter is used for the engine has a function of fuel and water separation. When water in the water container of the primary fuel filter reaches a certain level, the water-level sensor will send a signal to the water-level indicator light, reminding driver or operator to drain the water timely.
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(5) Before installing a new oil filter, fill it with clean oil from 8 peripheral holes. The oil level should be 3-15mm below the threaded hole. Apply a light film of Vaseline or clean lubricating oil to the O-ring on the new filter to form a lubricating film. △Caution: Do not add oil from the central hole of the filter.
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Truck mixers, tippers Shuttle buses School buses Fire trucks Sightseeing buses 14,000 Box type delivery trucks Crane trucks 10,000 Onsite goods transportation machinery Pavers, cranes, bulldozers × Backhoes, carry-scrappers Note: The change interval in this table is in month, or hour, whichever comes first. △Caution: Even if the engine is under use, the replacement period of lube oil should by no means be prolonged beyond the above recommended intervals.
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Warning: It’s prohibited to start the engine without air filter. Intake air must be filtered to prevent dust and dirt from entering the diesel engine in order to avoid early wear. 4.3.3 Check air intake system Check the air intake hose to see whether there is crack or perforation, or its clamp is loose;...
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If oil or dirt is found in the intercooler due to turbocharger fault or other causes, remove and clean the intercooler. △Caution: Do not wash the intercooler with corrosive detergent; otherwise, the intercooler will be damaged seriously. Use the solvent to wash the inner chamber of the intercooler in air flow direction.
4.4 Maintenance content every 20,000 km, 500 hours or 6 months Following maintenance items shall be completed in addition to daily maintenance and the previous periodical maintenance: Replace fuel filter; Prime fuel system; Check anti-freeze content and coolant additive concentration. ...
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4.4.2 Prime fuel system There is an overflow valve in the fuel inlet chamber of the fuel injection pump, and a small amount of air shall be discharged freely if the fuel filter is replaced as per in the instruction in the manual.
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temperature range of the engine coolant is extended. The anti-freeze content shall be controlled to make the coolant ice point lower than local min. temperature by about 10℃, Refer to Section 2.3.3 for relationship between the volume ratio of ethylene glycol and water and ice point. If being applied the content of DCA4 additive shall be checked as per Section 2.3.3.
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Check and adjust the clearances of the valves in the way specified in Step A when the piston of the cylinder 1 TDC on compression stoke (I stands for intake valve; E exhaust valve). Recheck all the valve clearances after tightening the adjusting screw locknuts.
4.5 Maintenance content every 40,000 km, 1,000 hours or 1 year The following maintenance items shall be completed in addition to daily maintenance and the previous periodical maintenance items: Check belt tension; Check tensioner bearing; Check fan bearing. 4.5.1 Check belt tension Measure the deflection of the belt at its maximum span.
4.5.3 Check fan bearing Rotate the fan to check whether the shaft bearing works normally. △Caution: The fan shall be free of vibration and without excessive axle movement. 4.6 Maintenance content every 80,000 km, 2000 hours or 2 years The following maintenance items shall be completed in addition to daily maintenance and the previous periodical maintenance items: ...
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Open the drain valves on the radiator and the engine water pump, and discharge the coolant in the cooling system. For most engine applications, the coolant volume in the system is about 25-30 L. Check whether the hose(s) has been damaged and the clamp(s) loosened or damaged, and replace them if necessary.
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△Caution: Air must be discharged from the cooling system water Ethylene chamber when filling clean agent. First open the air glycol bleeding valve (if applicable) in the intercooler, and slowly fill the detergent to avoid air block. Wait for 2 to 3 minutes to allow air to be exhausted fully.
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Start Start the engine and run it for 5 minutes after the coolant temperature goes higher than 80℃. Stop the engine and discharge all clean water. Coolant temperature △Caution: If the discharged water is very dirty, continue to fill clean water to water the system until discharged water becomes clean.
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4.6.2 Check vibration damper Check whether the scribed lines (A) on inner ring (B) and outer ring (C) of the vibration damper are out of alignment. Replace the damper if misplacement of the above two scribed lines exceeds 1.6 mm. Check whether the rubber part of the damper has aged or not.
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Check the air outlet pipe of the air compressor Discharge the compressed air in the brake air reservoir. Remove the air outlet pipe from the air compressor. Measure the total thickness of carbon deposit inside the air Inner diameter of exhaust pipe outlet pipe of the air compressor.
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Carefully check the unloading valve to see whether there is carbon deposit, and if so, remove and clean them. Check the compressor cylinder head inlet/outlet valve components, and replace relevant components if necessary. It is allowed to install a new-seal ring on the unloading valve body and a new Y-ring into its bore if the unloading valve clean or there is light carbon deposit.
4.7 Maintenance of SCR system Aqueous solution of 32.5% urea or AdBlue is adopted for the SCR system of the engine models that are compliant with China IV and China V. It is required to supplement AdBlue timely according to the national emissions regulation to avoid the SCR system failure due to lack of AdBlue, resulting in torque restriction.
Chapter 5 Troubleshooting Guidelines and Diagnosis Codes Only when correct operation and regular maintenance is done as required in this manual can failure(s) be eliminated effectively. Any abnormal condition during the engine operation shall deserve attention and be eliminated timely. Some typical engine failures, possible causes and acceptable solutions are listed in this manual.
Air enters the fuel system Discharge the air 5.2 Sudden misfire Possible Causes Correct The fuel is contaminated Replace with clean and qualified fuel Air enters the fuel system Prime the fuel system There is fuel leakage at high-pressure fuel Check the line for leakage, tighten and replace relevant parts if necessary line Low pressure fuel pipe or fuel filter is...
incorrect The turbocharger is damaged Check the turbocharger for pressure, replace it if its pressure is too low The injector orifice is blocked, resulting in Check and clean the injector or replace it poor atomization The ambient temperature is too high, or In the case of operation in the high-altitude area or at extra-high ambient the engine operates in high-altitude area temperature, the engine’s power will decline.
The oil leaks from the turbocharger and Check the turbocharger inlet and outlet for oil trace enters the intake and exhaust pipes The internal parts of the engine are over Consult the authorized service station or provider worn so that the seal becomes ineffective 5.6 Oil pressure is too high Possible causes Correction...
5.8 Engine is overheating Possible causes Correction Check the cooling system for leakage, add coolant and discharge air Coolant is insufficient completely The radiator pressure cap has failure Check the radiator cap The engine is overloaded Reduce load The radiator is covered with excessive Check the radiator and clean it if necessary dust The wind guide ring of the radiator is...
5.10 Coolant temperature is too low Possible causes Correction Too much cold air flow through the Check the fan and fan clutch, refer to the instructions by the fan clutch radiator manufacturer The radiator shutter is stuck at maximum Check the shutter and replace it if necessary opening The temperature sensor is failed Check and calibrate the sensor...
Driving system components become Check and replace them when necessary worn and imbalance The moving parts inside the engine are Consult the authorized service station or provider loose or damaged 5.13 Alternator cannot be charged or fully charged Possible causes Correction The battery connector becomes loose or Clean and tighten the battery connector...
5.14 Engine Diagnosis codes Engine compliant with China III,China IV and China V emissions regulation P code Explanation SVS lamp P0072 Ambient Air Temp. Sensor Signal Too Low P0073 Ambient Air Temp. Sensor Signal Too High P0088 Common rail pressure exceeds hi upper limit P0093 C/Rail Press.
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U0155 Can Bus-Line Open From METER U1001 CAN2 Node Error P2560 Coolant Level Low P2293 Supply pump protection P0336 Number of NE sensor pulse error P0337 Crank Sensor No Pulse P0341 Number of G sensor pulse error P0342 Cam Sensor No Pulse P0385 Crank &...
P1190 Supply pump control valve(suction control valve) stuck P1217 Supply pump exchange P1218 Supply pump malfunction(insufficient flow) P1219 P/L(pressure limiter) activated P1221 C/R press. falls below the control limit of the target press. P1222 Fuel Filter diagnosis level 1 P1223 Fuel Filter diagnosis level 2 P1530 Engine Stop switch stuck closed...
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P1D13 Urea Tank Level Sensor Short P1D14 Urea Tank Level Sensor Open Circuit P1D17 SCR Control Failure Level1 P1D18 SCR Control Failure Level2 P1D19 Urea Tank Empty P2059 Urea Pump Solenoid Open Circuit P2061 Urea Pump Solenoid Short Circuit P2214 Nox Sensor in Air P3009 Urea Pump Drive Unit...
Appendix Maintenance record Maintenance Record Diesel Engine Serial No. Vehicle VIN No. Diesel Engine Model User Name Equipment Name/Number Km (hrs) Date Actual Mileage Maintenance Content Maintainer Remark: Or Time Interval...
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