Komatsu PC200-8M0 Shop Manual page 997

200 Engine and cooling system
Removal and installation of cylinder head assembly
[*14]
3
Lubrication inlet hose tightening sleeve nut:
a When tightening the hose mounting nut,
secure the connector with a spanner since
the connector tightening torque is small.
3
Connector on turbocharger side
(if loosened):
9.8 – 12.7 Nm {1.0 – 1.3 kgm}
3
Lubrication outlet hose mounting bolt:
[*15], [*16]
a Tighten the bolts in the order shown below.
3
Exhaust manifold mounting bolt:
First time: in the order of [1] – [12]
Tighten to a torque of
Second time: in the order of [1] – [12]
Tighten to a torque of
Third time: in the order of [1] – [4]
Tighten to a torque of
[*17]
3
Fan mounting bolt:
[*18]
a Refer to the "Checking and adjusting of air
conditioner compressor belt tension" section in
the Testing and adjusting chapter of this man-
ual.
[*19]
a Install fan belt (38) as follows.
Insert a wrench to the portion (A) (width
q
across flats T 12.7 mm) of the tensioner
assembly (38a), and rotate it to the oppo-
site to the winding-up direction (R), then
install fan belt (38).
k
Make sure that the wrench is secured
at the portion (A) before rotating it.
(The spring of the tensioner assembly
PC200, 200LC, 220, 220LC-8M0
35 ± 5 Nm {3.5 ± 0.5 kgm}
12 ± 2 Nm {1.2 ± 0.2 kgm}
24 ± 4 Nm {2.4 ± 0.4 kgm}.
53 ± 6 Nm {5.4 ± 0.6 kgm}.
53 ± 6 Nm {5.4 ± 0.6 kgm}.
43 ± 6 Nm {4.4 ± 0.6 kgm}
(38a) is strong. If the wrench is loosely
inserted, the wrench may accidentally
come off while being rotated and it is
extremely dangerous.)
k
After installing the fan belt (38), return
the tensioner assembly (38a) slowly
with care.
k
Be careful not to get your fingers
caught between the pulley and fan belt
(38) during work.
[*20]
k
Install each high-pressure pipe and wiring
harness at least 10 mm apart from each
other.
q Refilling engine coolant
Refill coolant through the coolant filler port up
to the specified level. Start the engine and cir-
culate the coolant, and then check the coolant
level.
5
Coolant: 20.3 l (PC200/200LC-8M0)
19.9 l (PC220/220LC-8M0)
SEN06143-00
35
50-200