Technical data

OPERATION&MAINTENANCE MANUAL
39
coking of oil or blocking lubrication pipe, the responsibilities shall be borne by
the customers.
Selected oil brand under different temperatures
Ambient temperature oil brand corresponding oil brand of SAE
-10°C or colder 15W/40 CD grade 15W/40 CD grade
-5°C～20°C 10W/30 CD grade 10W/30 CD grade
20°C or warmer 5W/30 CD grade 5W/30 CD grade
The above-mentioned brand can be sold around China. The manufacturers
are: Dalian Petrochemical Company(Qixing brand),Lanzhou Oil Refining Plant
(Feitian brand), Jinxi Oil Refining Plant(Bohai brand), Maoming Petroleum
Industry Company(Nanhai brand),Jinan Oil Refining Plant and etc.
2 Air flow in the air filter of YSD490ZL turbocharger diesel engine shall be
no less than 250m3/h, and the mounted place shall be more then 500mm away
from exhaust pipe and turbocharger. Change filter core regularly as
requirement of the technical maintenance to ensure ventilation. Inner diameter
of the inlet pipe shall be no less then 54mm.Keep its inner wall smooth and
clean. Air leakage is not allowed at any connection of the pipe system. The
flexible duct for connection adopts rubber pipe with steel inside. Meanwhile set
a net to prevent aspirating large dust, otherwise the dust will block the duck,
which may cause insufficient air supply, low power, smoking and oil leakage in
the compressor of the turbocharger. Turning angle of the pipe shall exceed 90
degrees, and no more than two turnings shall be provided. Radius of turning
shall be 3 time as diameter of the pipe, which shall be shortened as much as
possible.
3 Inner diameter of the exhaust pipe shall no less than 48mm. Turning
angle of connection pipe shall exceed 90 degrees, and no more than two
turning shall be provided. Radius of turning shall be 3 times as diameter of the
pipe, which shall be shortened as much as possible. Muffler not only meeting