Komatsu PC200-8M0, Shop Manual

Page: 990 / 1254

SEN06143-00
50-200
28
PC200, 200LC, 220, 220LC-8M0
200 Engine and cooling system
Removal and installation of cylinder head assembly
4) Tighten the cylinder head mounting bolts
in the order from [1] to [26] according to
the following procedure.
2 Apply engine oil (EO15W-40) to the
threaded portion and seat surface
of each cylinder head mounting
bolt.
1] Tighten bolt to 90 ± 3 Nm {9.2 ± 0.3
kgm} .
2] Confirm that the bolt is tightened to
the torque of
90 ± 3 Nm {9.2 ± 0.3
kgm} .
3] Using tool A6 and retighten the bolts
by 90 ± 5 degrees.
a
When angle tightening tool A6 is not
used
4] After above steps 1] to 2] are finished,
put a paint mark across cylinder head
and mounting bolts.
5] Retighten the bolts by 90 ± 5 degrees.
2. Install push rods (61).
3. Fuel injector assembly
a
When replacing the fuel injector assembly
with a new one, be sure to replace the
inlet connector with a new one as well.
a
Check that the fuel injector sleeve is free
of flaw and dirt.
1) Fit O-ring (58a) and gasket (58b) to fuel
injector (58).
2) Apply engine oil (EO15W-40) to the O-ring
of fuel injector (58) and the mounting hole
on the head.
3) Install holder (58c), while setting its con-
cave part (C) to convex part (A) of fuel
injector (58).