Chapter II Technical Information of Engine
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
33
Table 2-7-
2 Specification for Diesel Engine’s Running-in on Vehicle (for the main parts replaced
during the overhaul)
Vehicle Traveling
Distance (km)
Vehicle Load
Rotation Speed of Diesel Engine (r/min)
0~100
No-load
Not over 50% of the rated rotation speed of the
corresponding diesel engine
＞
101~250
Not over 50% of the rated
load
Not over 50% of the rated rotation speed of the
corresponding diesel engine
＞
251~450
Not over 75% of the rated
load
Not over 75% of the rated rotation speed of the
corresponding diesel engine
＞
451~500
Full load
Not over the rated Max. rotation speed of diesel
engine.
3. Precautions for Running-in
3.1 You should observe, listen to the working condition of all systems of the diesel engine: check if there
is any oil, water, gas, or electric leakage; if the oil pressure, coolant temperature are normal; if the
rotation speed is steady; if the exhaust gas has a normal color; check the operation condition of
turbocharger, and make sure the rotor rotate flexibly, without block, clearance, etc. Any detected fault or
abnormal phenomena should be eliminated at first, and then proceed with running-in.
3.2 During running-in period, the vehicle should be driven at first or second level of road surface, it
should not be driving on road surface in bad condition, full speed and overspeed driving are absolutely
not permitted.
3.3 The max. allowed rotation speed of diesel engine during running-in period is 3000r/min.
4. Technical Maintenance After Running-in
A thorough inspection, clean-up and adjustment should be carried out after the completion of running-in
of the diesel engine, so as to eliminate the metal powder deposited in the lubricating oil and adjust the
improper clearance, the main contents are as follows:
4.1 After driving the vehicle for the first 2500 km (including the running-in period), discharge the engine
oil in the lubrication system and replace the oil filter, and replace the engine oil in accordance with
specified grades.
4.2 Check the fastening conditions of bolts, nuts of all parts; check the connection conditions of all
electrical connectors.
Attention:
The diesel engine can only be put into service after running-in and maintenance
according to technical requirements. Or else it may shorten the service life of the diesel engine.
5. Precautions for Usage of New Vehicles
Driving a new vehicle in accordance with the following rules will not only elongate the service life of the
vehicle, but also reduce the diesel consumption.
5.1 Keep a normal coolant temperature (80
℃
~ 90
℃
; the temperature can be 105
℃
when a pressure
water tank is used) and a normal oil pressure (≥ 0.4 MPa).
5.2 Keep the vehicle at a normal driving speed and prevent high speed driving.
