Maintenance of Major Components
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5.3. Lubricating System
5.3.1. General descriptions and main data
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General descriptions
All the engine oil pumped up from the oil pan by the gear type oil pump is filtrated through the oil
cooler and oil filter, and this filtrated oil is forced through the main oil gallery in the cylinder block from
where it is distributed to lubricate the various sliding parts, and fuel injection pump in order to ensure
normal engine performance.
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Specifications
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Diagram of lubricating system
Item Specifications Item Specifications
Lubricating system Forced pressure
circulation
Oil filter type Full flow
Oil pump type Gear type Bypass for filter element
Relief valve opening pressure 8.5 ~ 10 kg/cm
2
Valve opening pressure 2.1
±
0.3 kg/cm
2
Adjusting valve for spray nozzle Bypass for entire oil filter
Opening pressure 1.6
∼
1.9 kg/cm
2
Valve opening pressure 4.5
±
0.2 kg/cm
2
EC8OM006
By-pass valve
2.1 0.3 bar
Regulator Valve
2.1 0.3 bar
Relief valve
8.5 ~ 10 bar
Oil Strainer
Oil Pump
Oil Cooler
Oil Spray Nozzle
Piston
Tappet
Valve Push Rod
Crank Pin
Cam Shaft Bush
Injection Pump
Air Compressor
P.T.O
Turbo Charger
Piston Pin
Oil Pan
Rock Arm Bush
Crank Journal
Cylinder Block Main Gallery
Oil Filter
1.6 ~ 1.9 bar
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