Doosan DX60R Shop Manual page 302

Reassembly of the Valve Cover
1. Lightly grease a new valve cover gasket (6, Figure 159).
Place the gasket in the groove of the valve cover (3,
Figure 159).
2. Place the valve cover on the cylinder head.
3. Be sure new O-rings (5, Figure 159) are installed on the
valve cover nuts. Reinstall and tighten the valve cover nuts
(4, Figure 159).
4. Reinstall the fuel injector grommets (1, Figure 159).
5. Reinstall the exhaust manifold using a new gasket. Tighten
the bolts to specification.
6. Reinstall the intake manifold using a new gasket. Tighten
the bolts to specification.
7. Reconnect the fuel injector return hose and fuel injection
pump coolant hoses.
8. Reinstall the high-pressure fuel line grommets into the
valve cover.
9. Reinstall the high pressure and fuel return lines. See
"Installation of the Fuel Injectors" on page -199
10. Reinstall the coolant pump. Reassembly of Engine
Coolant Pump.
11. Reinstall the alternator. See "Installation of Alternator" on
page -251
12. Reconnect the turbocharger oil supply and drain lines.
13. Reconnect the air intake hose.
Engine
Page 122
Figure 159
SP001693