Doosan GL08K - Lubricating System Maintenance

Maintenance of Major Components - 162 -
5.2. Lubricating System
5.2.1. General descriptions and specifications
 General
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.
 Specifications
 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 cartridge
Relief valve opening pressure 10 ± 1.5 kg/cm
2
Valve opening pressure 1.8 ~ 2.3 kg/cm
2
Bypass for oil cooler
5 ± 1 kg/cm
2
Bypass for cartridge
Opening pressure Valve opening pressure 4.0 ~ 4.8 kg/cm
2
Adjusting valve for spray nozzle
Opening pressure 1.5 ~ 1.8 kg/cm
2
ED4OM046
Turbo charger
Air compressor
Crank journalRocker arm bush
Cam shaft bearing
Relief valve
Oil strainer
Oil pump
Oil cooler
Oil pan
Piston pin
Crank pin
Tappet
Valve Push rod
Oil spray nozzle
Piston
By-Pass valve
By-Pass valve
Oil filter
Relief valve
Cylinder block main gallery