If ambient temperature occasionally exceeds its limit, only starting performance will be affected,
and the engine itself will not be damaged. Engine oil should be kept clean, free of pollution by
dust or impurities. After the engine oil is added, it is necessary to inspect the oil level inside the
crankcase sump as follows: pull out the oil dipstick and clean it with gauze, then insert it back;
pull it out again and inspect if the oil-level indication is between the upper limit and lower limit.
The oil level should at any time be no lower than the lower-limit on oil dipstick.
Table 2-2 Relations between engine oil brands and suitable lowest temperature
Oil brand
5W/30
10W/30 15W/40 20W/40
30
40
Engine's operating ambient temp. (
℃
)
-25
-20
-15
-10
5
> 25
For ensuring that the diesel engines properly operate and have a longer service life as well as
emission of engines is improved, please use Class CC and CD lube oil, dedicated to Brand Xichai
diesel engines. This lube oil meets GB11122-1997 National Standard for Diesel Engine Oil, and
its performance conforms to Class CC and CD of American Petroleum Institute (API), and
conforms to Viscosity Class SAE30, 40, 15W40 and 20W50 of standard of the Society of
Automotive Engineers (SAE), USA.
1. Engine oil quality and class should be selected according to engine model/type and
automobile model/type.
2. Viscosity class should be selected according to ambient temperature.
3. Higher class (one class higher than normal required class) oil should be used, when load is
heavy or travel distance is long, or where road condition is bad or in dusty regions.
4. Recommended are CD15W40 and CD20W50 engine oil with several viscosities, which not
only have low-temperature dynamic viscosity and low-temperature boundary pumping
performance, but also have such high-temperature characteristics as high-temperature shear
stability, high-temperature viscosity and evaporation loss etc, ensuring engines to be reliable.
Specification & applicable scope of lube oil, dedicated to Brand Xichai diesel engines
Oil spec.
Application scope
CD30
CD40
CD15W20
CD20W50
Service
ambient
temperature
0
℃~
30
℃
5
℃~
40
℃
-10
℃~
40
℃
0
℃~
50
℃
Suggested
oil-change
interval
6000
~
8000 km
10000km
Suitable engine model /
Type of vehicle
Natural aspiration, low
supercharging 4DW/ agriculture
vehicles, light-weight trucks
Mid supercharging 4DW/
passenger buses, light-weight
vehicles
(3) Cooling water: rainwater, tap water or clean river-water is preferred as the cooling water.
However, tap water with well-water as its source, or well-water, which both contain more minerals,
should not be used; otherwise, inside the engine cooling system, more water-scale will be
produced, thus cooling effectiveness will be affected and engine be troubled. In winter when the
temperature is very low, it is possible to add some anti-freeze liquid to prevent freezing. Most
commonly used anti-freeze liquid is ethylene glycol (glycol) water solution or alcohol. When
12
Содержание 485
Страница 1: ......
Страница 3: ...Written by Zhai Yonghui Huang Qiwei Yang Xueming Reviewed by Wang Xinze Li Peiran Yao Zugen ...
Страница 5: ......
Страница 8: ... I Right view of 4DW81 46 diesel engine 1 ...
Страница 9: ... II Left view of 4DW81 46 diesel engine 2 ...
Страница 10: ... III Front view of 4DW81 46 diesel engine 3 ...
Страница 11: ... IV Vertical view of 4DW81 46 diesel engine 4 ...
Страница 12: ... V Power output end of 4DW81 46 diesel engine 5 ...
Страница 16: ...III External characteristic curve of 4DW engines 1 External characteristic curve of 4DW81 46 B01 9 ...
Страница 17: ...2 External characteristic curve of 4DW81 50 B05 37kW 3200 r min 10 ...
Страница 55: ...Annex Fit Clearance Table 48 ...
Страница 56: ...49 ...
Страница 57: ...50 ...