Doosan DP158LDF - Page 69

5. About the engine
102
3) Attach the vavle(B).
4) Attach the valve spring(E).
5) Compress the valve with the valve spring press
(EF.120-262).
6) Attach the valve cotters(F).
23. Attach the cylinder head assembly.
DV2213077A
1) Attach the gasket assembly.
2) Attach the cylinder head assembly(B).
3) Tighten 6 cylinder head fixing bolts(A) at a tighteni
ng
t
orque 8kgf·m + 15kgf·m + 90° + 90° by using t
he
a
ngle method.
4) Attach 12 cylinder head assembly as the same proce-
dure.
24. Attach the push rods.
DV2213076A
1) Attach 24 push rods(A).
25. Attach the rocker arm assembly.
DV2213075A
1) Attach the rocker arm assembly(B).
2) Tighten the fixing bolts(A).
3) Attach 12 rocker arms as the same procedure.
26. Attach the injectors.
DV2213073A
CAUTION
Be careful to use the right valve without confusing
the intake valve with the exhaust valve. The intake
valve is the mark “ I ” engraved on the head and
the exhaust valve is the mark “ E ” engraved on the
head.
CAUTION
Be carful the valve direction. The yellow mark on the
valve is upward.
CAUTION
Check if the valve cotters have been positioned
correctly with the plastic hammer after completing
attaching them.
B
A
A
A
B
A
B