7. Main Parts Maintenance
7.1. Lubricating System
Lubricating oil pumped by the gear oil pump in the oil pan is filtrated in the oil filter through oil
cooler.
This filtrated oil passed on the main oil gallery of the cylinder block where is distributed to
lubricate the various sliding parts, fuel injection pump, and turbo-charger etc also in order to
ensure normal engine performance.
7.1.1. Specifications
7.1.2. Oil pump
•
Disassembly
(1) Disassembly of oil pump drive gear
a) Unscrew the screw and
disassemble the oil relief valve.
b) Unfold the washer for the oil
pump drive gear fixing nut and
remove the nut.
c) Disassemble the drive gear.
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Item Specifications
Lubricating system Forced pressure circulation
Oil pump type Gear type
Relief valve opening pressure 10
±
1.5 kg/cm
2
Bypass for oil cooler Opening pressure 5+1 kg/cm
2
Adjusting valve for spray nozzle Opening pressure 1.5 ~ 1.8 kg/cm
2
Oil filter type Full flow
Bypass for filter element Cartridge Type
Valve opening pressure 1.8 ~ 2.3 kg/cm
2
Bypass for entire oil filter Valve opening pressure 4.0 ~ 4.8 kg/cm
2
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