Weichai WD10 Engine Manual (EN)

Service Manual for WD10 Mechanical Pump Series Engine x Service Manual for WD10 Diesel Engine

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Service Manual for WD10 Diesel Engine Special Tips Operators must carefully read Diesel Engine Instruction Manual before operating, all technical operations and maintenance regulations specified in the manual must be strictly complied with. Turbocharger rotor is precision high-speed rotating component, unauthorized disassembling and crashing is strictly prohibited, otherwise the “three guarantees” we committed shall automatically become invalid.

Various bolts like diesel engine main bearing bolts and connecting rod bolts have strict torque requirements and tightening angle requirements, users are not allowed to loosen or remove the bolts casually; connecting rod bolts are disposable bolts, do not reuse them, otherwise the “three guarantees” we committed shall automatically become invalid.

The added engine oil or diesel oil, whose brand must complied with requirements specified in operation and maintenance manual, moreover, all oil must be filtered with specialized clean filter, fuel must be subsided for more than 72 hours before adding; Before operating the machine each time, check and ensure coolant level and engine oil level meet the requirements. It is forbidden to run the diesel engine without an air filter to prevent unfiltered air entering into cylinders. Test-run a new machine for 50 hours (run-in period) before putting it into operation.

Increase the engine rotating speed slowly after cold starting, neither increase the speed abruptly or long-term idling is proper; After heavy load running, do not stop the engine immediately (peculiar circumstance exception), you should run it at low speed for 5~10 minutes before shutting down; After parking, if the ambient temperature is likely to be lower than 0 o C and there is unused coolant in the machine, please be sure to drain the coolant in water tank and diesel engine out; To prevent rusting, the diesel engine is sealed with oil before delivery, seal period for common diesel engine before unpacking is one year, for new diesel engine that has been sealed for more than one year should be inspected and taken additional measures.

Please add fuel of specified brand at a normal gas station, Weichai Power shares no responsibility for fuel system damage caused by inferior fuel, and the “three guarantees” we committed shall automatically become invalid. Please overhaul and maintenance the engine at the service station specified by Weichai Power, and only used Weichai Power specified spare parts for replacement, otherwise Weichai Power shares no responsibility for damage caused by using unauthorized parts.

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Service Manual for WD10 Diesel Engine Preface As an advanced high-speed diesel engine, WD10 is a newly-developed product of Weichai Power Company Limited based on bran-new design concept, which meets China II emission standard. WD10 diesel engine has the features of compact structure, reliable service, excellent dynamic property and economic efficiency, rapid start, easy operation and convenient maintenance. WD10 can achieve advanced emissions target, definitely an ideal engine for heavy vehicles.

This manual briefly introduced the technical parameters, structural features, operation and maintenance methods, and overhaul tips of WD10 diesel engine, for users to refer to; provided service technologies of diesel engine to help serviceman profoundly understand disassembly and assembly methods of the engine, also laid a solid technical foundation for serviceman to do troubleshooting. Please carefully read this manual to make the best use of it.

With development of product, some structures may be improved, so there might be a slight difference between technical specifications and graphic descriptions in this manual and the real machine in use, users should pay attention to the differences despite our company will continuously do the complements in the successive versions. SDLG Technology Department June 2014

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Service Manual for WD10 Diesel Engine CONTENTS 1 Usage Instructions for Diesel Engine ..................................................................... 1 11 External View of Diesel Engine ............................................................................. 1 12 Diesel Engine Model Composition and Significance ............................................. 3 13 Diesel Engine Main Technical Parameters ............................................................. 3 14 Unseal of Diesel engine ..........................................................................................

5 15 Lifting of Diesel Engine ......................................................................................... 6 16 Installation of Engine .............................................................................................. 6 17 Preparation before Starting Engine ......................................................................... 6 18 Start the Engine ....................................................................................................... 7 19 Run the Engine .......................................................................................................

7 2 Maintenance Guidelines for Diesel Engine ............................................................ 9 21 Fuel Oil, Engine oil, Coolant and Auxiliary Materials .......................................... 9 211 Fuel Oil ........................................................................................................... 9 212 Engine Oil ....................................................................................................... 9 213 Lubrication of Tensioning Wheel ................................................................. 10 214 Antifreeze Additive in Engine Cooling System ...........................................

10 215 Auxiliary Materials ....................................................................................... 11 22 Daily Maintenance ................................................................................................ 12 221 Check Coolant Level and Temperature ........................................................ 12 222 Check Engine Oil Level ............................................................................... 13 223 Check Fuel Level .......................................................................................... 14 224 Check “Three Leakages” ..............................................................................

14 225 Check Fan ..................................................................................................... 14 226 Check Belt .................................................................................................... 14 227 Check Whether Exhaust Gas Color is Normal ............................................. 14 228 Check Whether Running Sound is Normal .................................................. 15 229 Check Whether Rotating Speed and Vibration are Normal ......................... 15 23 Periodic Maintenance ...........................................................................................

15 24 Maintenance for Long-Term Storage ................................................................... 20 241 Cleaning ........................................................................................................ 20 242 Protection ...................................................................................................... 20

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