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Doosan DA40 - Page 266

Doosan DA40
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Engine
SHOP MANUAL
Ch 1 page 221
Tightening torques
Cylinder head bolts 68 Nm
High pressure pump, banjo unions 55 Nm
High pressure pipe 38 Nm
Bracket for high pressure pipe 22 Nm
1
2
3 Clean around the fuel system.
4 Depressurise the fuel system. Use SDP3 to minimise
the pressure. Place a rag over the high-pressure pipe
nut (1). Then undo the nut carefully.
5 Undo the cable connection.
6 Remove the high-pressure pipe (2) and fit clean
plugs in the fuel connections.
7 Undo the banjo unions on the high pressure pump.
8 Remove the fuel return pipe (3) and plug the fuel manifold. Detach the pipes (4 and 5) from the cylinder head.
9 Undo the cylinder head bolts alternately. Remove the cylinder head and gasket.
10 Remove the protection plugs on the new cylinder head. Fit new springs, a new gasket and new bolts.
The high pressure pipe must not be reused.
NOTE
Figure 389

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