Doosan G20P-5, Руководство по обслуживанию

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G424F(FE) Service Manual Chapter 3. Engine Mechanical System 42
Removal
Remove or Disconnect
1.
Relieve of fuel line pressure:
• Fuel-off solenoid valve disconnect.
• Run the engine and leave it running until
stopping by lack of fuel.
• Run the engine for about 5 seconds so as to fully
depressurize the fuel system.
• Fuel pump electric connection, from the tank
upper area
• Run the engine and let it idle until it stops by lack
of fuel.
• Start the engine for about 5 seconds, so as to
obtain full pressure relief in the fuel system.
2.
Disconnect the wiring harness from electronic
components.
3.
Battery negative cable.
4.
Drain the coolant, releasing the radiator lower
hose.
5.
Disconnect the fitting of gasoline fuel hose from
the fuel tank. (G424FE DF)
6.
Disconnect the fuel hose and balance line, air
hose.
7.
Disconnect carburetor assembly by using 5mm
hex-bit socket wrench handle.
8.
Disconnect the PCV hose by using a screw driver.
9.
Remove bracket attaching bolts by using 17mm
spanner.
10.
If necessary, remove the fuel rain from intake
manifold by using 12mm socket wrench and
extension.
11.
If necessary, remove TMAP sensor attaching
screws by using E-8 socket wrench with
extension.
12.
Remove all hose clamps and hose by using
screw driver.
13.
Remove coolant pipe attaching bolts by using
13mm spanner and 10mm socket wrench.
14.
Remove manifold attaching bolts from the head
by using 13mm wrench.
15.
Remove the intake manifold.
Clean
• Gasket residues from the intake manifold and
cylinder head, taking care not to scratch the
gasket mating surfaces.