Doosan DL450-3 Manual da loja - Página 14

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5.
Tighten the cylinder head as shown in the illustration and
according to specification.
Cylinder head bolts can only be reused three times. Make
a mark with a center punch on the head of the bolt. If any of
the bolts already has three marks, it must be replaced.
6.
Tighten the intake manifold. Use a new gasket. Tighten the
bolts in the order 1-20 or 1-24 as illustrated. Tighten the
bolts in the same order again.
7.
Tighten the intake manifold and the exhaust manifold. Use
new gaskets.
8.
Install the cable bracket bolt in the lower rocker cover and
install the following parts:
•
Lower rocker cover.
•
Pushrods.
•
Valve bridge.
•
Rocker arm housing.
IMPORTANT
Lubricate the valve bridge and rocker arm housing
with engine oil.
Engine
Page 34
3
6
2
Figure 14
1
2
Figure 15
2
4
6
8
10
1
3 5
7 9
Figure 16
2
4 6
8 10 12 14 16 18 20 22 24
1
3 5
7 9 11 13 15 17 19 21 23
Figure 17
1
5
4
FG020253
3
4
FG020254
12 14
16 18 20
11 13
15 17
19
FG020255
FG020256
SP002541