Doosan DX60R Shop Manual page 301

The wave washers (2, Figure 156) must be installed with the
bow facing the rocker arms (1, Figure 156).
Ensure the lubrication holes (1, Figure 157) in the rocker arm
shaft are oriented correctly with respect to the rocker arms (2,
Figure 157).
3. Lubricate the rocker arm shaft. Slide the rocker arm
supports (6, Figure 158), wave washers (7, Figure 158),
rocker arms (8, Figure 158), and fuel injector retainers (4,
Figure 158) onto the shaft.
NOTE: To properly align the rocker arm shaft with the
rocker arm shaft supports, first reinstall one of
the end rocker arm supports (6, Figure 158)
with a hole for the shaft alignment stud (5,
Figure 158). Align the hole in the rocker arm
shaft and the hole in the rocker arm support
bracket. Reinstall the alignment stud.
NOTE: Figure 158 shows components for one cylinder.
Components for all remaining cylinders are
assembled in the same order.
4. Position the rocker arm assembly on a flat surface.
Reinstall the alignment studs (5, Figure 158).
5. Place the rocker arm shaft assembly onto the cylinder head.
6. If removed, reinstall the valve adjusting screws (2, Figure
158) and lock nuts (3, Figure 158).
7. Align the push rods with their respective rocker arms.
8. Reinstall and tighten the rocker arm shaft retaining bolts to
the specified torque.
9. Tighten the rocker arm shaft alignment studs.
10. Adjust the valve clearance.
11. Reinstall the fuel injectors. See "Installation of the Fuel
Injectors" on page -199
Engine
IMPORTANT
IMPORTANT
Figure 156
Figure 157
Figure 158
SP001693
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