Doosan DB33A - Lubricating System; Oil Pump Service

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3. Lubricating System
3.1. General Description
3.2. Oil Pump
Disassembly
Injection
pump
O/P : Opening pressure
<Disassembly steps>
1. Strainer
2. Suction pipe
3. Cover and dowel
4. Drive gear
5. Drive shaft and gear
6. Driven gear shaft
4
6
3
2
5
1
Full flow filter
By-pass
valve
O/P 1kg/cm
2
Paper
filter
O/P 8kg/cm
2
Oil relief
valve
Oil pump
Oil pan
Oil strainer
By-pass
valve
Oil
cooler
O/P 2kg/cm
2
O/P warning
lamp
Oil filter
warning lamp
Oil press S/W
Start
S/W
Battery
Cylinder body main oil gallery
Oil
relief
valve
Con.
rod
brgs.
Crank
shaft
brgs.
Cam
shaft
brgs.
Timing
idle
gear
Cyl.
head
valve
system