WP13 Diesel Engine Series Operating Manual
21
Replace the safety filter element of the air
filter
After the main filter element has been cleaned for 5 times
Check and fasten the belt
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●
Check the supercharger bearing clearance
Once every 160,000km
Check and adjust the clutch stroke
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Note:
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marker for maintenance needed
Chapter VI Analysis and Troubleshooting of the Common Troubles
The WP13 series diesel engines are designed and manufactured in a strict quality assurance system,
and each diesel engine has been tested as specified. At the same time, the diesel engine is a kind of
precision machinery, with its long-term effect closely related to normal maintenance and services.
Generally speaking, the earlier failure of a diesel engine may have the following several reasons:
◆
Illegal operation, improper management and use;
◆
No maintenance or services are made as required and even the repair is used to replace
maintenance.
◆
The accessories ill manufactured and especially fake and shoddy products bought for sake of
the lower price will greatly shorten the service life of the diesel engine;
◆
The fuel or lubricating oil is unqualified or has the grade inappropriately selected.
6.1 Diagnostic Methods
The methods generally used for diagnosis of diesel engine faults are as follows:
◆
Observation method: observe the diesel engine smoke and other fault characteristics to judge
the fault conditions;
◆
Listening: listen and judge the nature and degree of the fault location according to the
abnormal sound of the diesel engine;
◆
Cylinder-off method: stop a cylinder to judge whether this cylinder has something wrong. In
general, stop feeding the cylinder in doubt of fault and compare the state changes of the engine
before and after the faulty cylinder has been cut off, in order to narrow the scope to find out the
fault position or reasons;
◆
Comparison method: replace some assemblies or parts to determine whether there is something
wrong.
Note:
1.
It is a very careful task to judge the causes for faults of diesel engines, and before the
