Doosan DL300-3 Betriebshandbuch - Seite 12
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Cylinder Head
Removal
1.
If the engine has EGR:
Remove water-cooled EGR cooler as instructed in the
work description for Removing the water-cooled EGR
cooler.
Remove brackets for the water-cooled EGR cooler.
2.
Remove bolts for the exhaust manifold on the relevant
cylinder and slacken the bolts on the adjacent cylinders so
the relevant part of the exhaust manifold comes loose.
3.
Remove cooling system bleeder hose, separate the quick
release coupling at the front lifting eye.
4.
Remove cable duct from the intake.
5.
Remove cable ties for the cable harness from the engine
control unit.
IMPORTANT
The fuel system components are extremely sensitive
to dirt. Clean thoroughly before dismantling and plug
all connections with lint-free rags and tape.
6.
Depressurize the fuel system and detach the fuel pipe
running between the accumulator and fuel manifold.
7.
Detach the fuel manifold and remove bolts on the relevant
cylinder.
8.
Detach the intake manifold and remove bolts on the
relevant cylinder.
IMPORTANT
All parts in the fuel injection system and valve
mechanism must be marked.
Everything must be reinstalled in the same position.
9.
Remove injectors as instructed in the work description for
Removing the injectors.
Also remove high-pressure pipes and connection on the
cylinder head at the back viewed from the coolant pump.
Engine
Page 32
7
Figure 11
9
8
FG020250
SP002541