Komatsu PC200-8M0 Shop Manual page 995

200 Engine and cooling system
Removal and installation of cylinder head assembly
1) Assemble common rail (20) and high-
pressure pipes (71) – (76) temporarily.
3
Sleeve nut and mounting bolt:
0.2 – 0.8 Nm {0.02 – 0.08 kgm}
2) Tighten high-pressure pipes (71) – (76)
according to the following procedure.
3
Sleeve nut:
35 ± 3.5 Nm {3.57 ± 0.36 kgm}
1] Head side of high-pressure pipes (71)
and (76)
2] Common rail side of high-pressure
pipes (76) and (71)
3] Head side of high-pressure pipes
(72), (73), (74) and (75)
4] Common rail side of high-pressure
pipes (72), (73), (74) and (75)
3) Tighten the sleeve nut of high-pressure
pipe (25b) temporarily.
4) Tighten high-pressure pipe (25b) in the
order of firstly pump (FSP) side, then com-
mon rail (20) side.
3
Sleeve nut:
35 ± 3.5 Nm {3.57 ± 0.36 kgm}
5) Tighten clamp (25a) of high-pressure pipe
(25b).
3
Mounting bolt:
6) Tighten common rail (20) with 4 bolts.
a Coat the 2 bolt threads on the inner
side of the engine with sealant (LG-7).
3
Mounting bolt:
7) Install bellows (22) and (23) to each high-
pressure pipe. (14 pieces)
a Set the slits of each bellows out and
down.
a The bellows are installed so that fuel
will not spout over the hot parts of the
engine and catch fire when it leaks for
some reason.
a FSP: Fuel supply pump
PC200, 200LC, 220, 220LC-8M0
24 ± 4 Nm {2.4 ± 0.4 kgm}
24 ± 4 Nm {2.4 ± 0.4 kgm}
SEN06143-00
33
50-200