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Deutz WP6C/WP4C Series Marine Diesel Engines
Operation and Maintenance Manual and
User Service Guide
13060345
Deutz WP6C/WP4C Series Marine Diesel Engine Operation and Maintenance Manual
Deutz WP6C/WP4C Series Marine Diesel Engine User Service Guide
Important
In order to ensure your safety and give full play of high performance of diesel engine, please
carefully read this manual before operating the diesel engine and closely abide by the
operation and maintenance procedures specified in this manual.
In order to protect your lawful rights and interests, never dismantle the lead sealing for the
fuel amount from the fuel pump without permission.
The guarantee from the factory will be invalid for adjusting the fuel injection pump or
dismantling the lead sealing.
Because the fuel injection pump is sophisticated component, users are not allowed to
dismantle it. Failure to do so will cause the factory's guarantee invalid.
Because the rotor shaft of supercharger is sophisticated high-speed rotating part, users are not
allowed to dismantle it or let it be impacted. Failure to do so will cause the factory’s
guarantee invalid.
Because of the strict torque and turn angle requirements for the main bearing bolts and
connecting rod bolts of diesel engine, users are not allowed to loosen and dismantle them.
Failure to do so will cause the factory’s guarantee invalid.
At any time of starting the diesel engine, please check whether the coolant and oil is fully
filled.
As the connecting rod bolts are disposable, never reuse them.
Deutz WP6C/WP4C Series Marine Diesel Engine Use and Maintenance Manual
Deutz WP6C/WP4C Series Marine Diesel Engine User Service Guide
Precautions
1. Before delivery of the engine, the delivery test is already and strictly done based on test
specifications. As the throttle openness is already limited by lead sealing, never randomly
dismantle the lead sealing to increase the throttle. Otherwise, our factory will not perform the
Three-guarantee. Users are hoped to pay attention to this.
2. The operator should carefully read this Operation and Maintenance Manual, be familiar with
the structure of this diesel engine and closely abide by the technical operation and
maintenance procedures specified in this manual.
3. Before using the new diesel engine, please perform the trial operation for 50h.
4. After the diesel engine is cold started, please slowly increase the rotating speed and never
idle for long time. After engine running with load, do not immediately stop it. It is necessary
to idle for 5-10 min at low speed.
5. After engine is stopped, if the ambient temperature is lower than 0℃, yet the antifreeze
additive is not applied, please completely drain the water in water tank and diesel engine.
6. The diesel engine is prohibited to work without air cleaner which could prevent unfiltered air
from entering the cylinders.
7. Please select the specified fuel and oil grades which will be filled into the diesel engine (it is
suggested to use Weichai Power special oil sold at all service stations of Weichai). Use the
special clean container. The fuel and oil should be filtered through the strainer before being
added. Precipitate the fuel for 72h or more.
8. The inspection of electrical system should be done by the personnel mastering the electrical
knowledge.
9. The valid duration of oil sealing for the diesel engine is one year. If the valid duration is
beyond one year, please take necessary supplement measures.
10. The power calibration and revision of diesel engine should be based on the
CB/T3254.1-1994.
Deutz WP6C/WP4C Series Marine Diesel Engine Operation and Maintenance Manual
Deutz WP6C/WP4C Series Marine Diesel Engine User Service Guide
Preface
WP6/WP4 series marine diesel engines are manufactured by Weifang Weichai Deutz Diesel
Engine Co. Ltd - the joint venture of Weichai Power Co. Ltd and Deutz AG. This series diesel
engines are classified into supercharge type and supercharge and intercooled type based on the
aspiration methods. There are two kinds of cylinder types: 4-cylinder and 6-cylinder. These series
diesel engines are of four stroke, water cooling, in-line, DI combustion chamber and high speed
engines, featuring by compact structure, reliability operation, excellent power performance and
economy indexes, advanced emission indicators, quick start, easy operation and convenient
maintenance etc. These series diesel engines are the ideal propulsion power for small vessels used
for inland water transportation, fishery and high-speed ships.
This manual mainly covers the main technical parameters, performance indicators, structural
features and operation and maintenance precautions for WP6/WP4 series marine main and
auxiliary engines. Before using this engine, please closely follow all requirements specified in this
manual. This could ensure the operation reliability and prolong the useful life of diesel engine.
Before servicing, disassembling and installing the diesel engine, please carefully read the Deutz
WP6/WP4 Series Marine Diesel Engine Parts Catalogue to master the basic structures of all
systems of the diesel engine.
What this manual describes is the basic models of WP6/WP4 series marine diesel engines. As to
other model information which is not listed into basic model, users could consult according to the
contact phone, fax etc on the “User Feedback Card”. As the products continuously develop, the
structure will also change. Partial content in this manual may be slightly different from the actual
products. This manual will be subject to be revised without notice. Access the www.weichai.com
for updated product information and hope users timely pay close attention to all the issued
technical information. If you feel the content important, please timely contact with the technical
department or sale department of Weichai Power Co. Ltd to avoid unnecessary trouble during the
normal use and maintenance.
Welcome comments and suggestions for product improvement from users. Please send the “User
Feedback Card” annexed at the end of this manual to the Sales Company or Application
Engineering Department of Weichai Power Co. Ltd.
Mar.2010
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