5
Foreword
YC4D60-D21
、
YC4D85Z-D20 series diesel engines are developed by Yuchai in the
purpose of satisfying the diesel generator set market requirement. This model bases on
the foundation of high-quality product YC4108Q
、
YC4108ZQ, and assimilate the diesel
engine technique characteristics of generator set,which is the amalgamation of our
company’s abundant experience and overseas advanced technology.YC4D85Z-D20
engine bases on the model of YC4D60-D21 engine, adopt exhaust gas turbocharging
technique ,which is good in motive force and fuel efficiency and meet the emission and
low noise requirement. The series has good performance in motive force
、
fuel
efficiency and dependency. The model, compact, simple, easy maintenance.
This manual introduces the main technical specifications
、
the basic assemblage
requirements
、
the engine adjustment
、
the operation and maintenance and the
troubleshooting of the YC4D60-D21
、
YC4D85Z-D20 engine. Proper operation and
maintenance will prolong the use life and ensure safety in operation. Please read this
Manual carefully before use, and pay special attention to CAUTIONS ON ENGINE USE. To
ensure the engine use properly and maximize the client’s economic effectiveness, please
make the engine maitenance work actually.
This manual is only about the basic model of this series generator set ,which is the
same for operation and maintenance the modified models.As requirements for
technology is developed so fast,modification will be carried out without information.
This manual is explained by YUCHAI Technology Centre and YUCHAI Technology
Service Centre takes charge of the technology consults and advices.
Guangxi Yuchai Machinery Co. Ltd
