Operation and Maintenance Manual of WP13C Series Diesel Engines
Weichai Power Pursuit of Excellence
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(3) Diesel engine monitoring instrument
The WP13C series diesel engines adopt the advanced microcomputer controlled full-automatic diesel
engine electronic monitoring system for precise monitoring and digital display of engine speed, oil pressure,
oil temperature and water temperature. When the parameters exceed the limit, it will give sound/lighting
alarm signals and shutdown signals, and it also has the functions of starting and stopping the engine.
See table 3 for diesel engine instrument parameters.
Table 3 Diesel engine instrument parameters
S/N
Displayed parameter
Alarm value
Shutdown value (to oil cut-off electromagnet)
1
Speed
115% of rated speed
120% of rated speed
2
Oil pressure
0.08 MPa
0.045 MPa
3
Oil temperature
105
℃
/
4
Water temperature
97
℃
/
(4) Battery
2
12V 165Ah, or select 180Ah.
Chapter III Installation precautions for WP13C series
diesel engines
1. Mounting of diesel engine
The WP13C series diesel engines can be matched with SAE I flywheel housing and gear case for
generation. When mounting, the coaxiality of diesel engine crankshaft and gear case input shaft
must be
ensured. The diesel engine and the gear case are connected by elastic coupling. After butting of
the
couplings, no axial force is allowed on the diesel engine crankshaft, or else the thrust plate on the
diesel
engine will be damaged.
2. Mounting of intake system
The air inlet of diesel engine shall be arranged outside the engine set to ensure fresh air supply for
the
diesel engine. Use as few elbows for the air inlet pipes as possible and adopt big circular arc
transition. Add
a protective cover for the air filter at the air inlet to prevent water and dirt from entering the diesel
engine
3. Mounting of exhaust system
The external exhaust pipes adopt steel pipes and avoid too many elbows. The external exhaust
pipes shall
be securely fixed on the engine set, no vibration is allowed, and the weight shall not be applied on
the
diesel engine expansion pipe. After mounting of the exhaust pipes, it is required that the exhaust
back
pressure of diesel engine shall not exceed 7.5kPa; otherwise, the engine performance will be
affected. As
