MAINTENANCE MANUAL OF ENGINE
119
3. Lubricating System
During operation of the engine, the lubricating sys-
tem is functioned to continuously deliver abundant
clean lubricating oil to friction surfaces of all driv-
ing parts, form an oil film between the friction sur-
faces to realize fluid friction, decrease friction re-
sistance, reduce power consumption and lighten
wear, improving engine operating reliability and
durability.
Lubrication manner:
Pressurization, splash lubrication
The lubricating system is composed of:
Oil pump
Oil filter
Oil cooler
Oil sump
Suction filter
Lubricating oil pipeline
A-Gear train
B-Idler shaft
C-Oil pump
D-Engine oil suction filter
E-Oil sump
F-Oil filter
Function of lubricating oil:
Lubrication---Reduce wear between parts by use of
the oil film
Sealing---Prevent gas leakage by use of the oil film
Cooling---Absorb heat
Clean and Rust cleaning---Remove the metal filings,
inclusions and acidic substances.
Vibration damping---Damp the vibration by use of
the oil film
A
B
C
F
E
D
Summary of Contents for KM/4L22
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