Komatsu 114E-3 Series Shop Manual page 126

SEN00455-01
10. Install gasket D4 to the tip of adapter D3 and
connect it to the injector mount.
11. Fix adapter D3 with the injector holder.
3
Holder mounting bolt
1st time: 10 ± 2.0 Nm {1.0 ± 0.2 kgm}
2nd time: 41 ± 4 Nm {4.1 ± 0.4 kgm}
12. Connect gauge assembly D2 to adaptor D3.
a Apply a little amount of engine oil to the
connecting parts of the adapter and gauge
so that air will not leak easily.
13. Install rocker arm assembly.
3
Rocker arm assembly mounting bolt:
64.7 ± 4.9 Nm {6.6 ± 0.5 kgm}
14. Adjust valve clearance.
a See "Adjusting valve clearance".
8
15. Connect INSITE (troubleshooting kit) to the
engine and set the engine in the no-injection
cranking mode.
a When testing while the engine is mounted
on the machine, set the engine in the no-
injection cranking mode with the monitor
panel.
k
If the engine is not set in the no-injec-
tion cranking mode, it will start during
testing and will be dangerous. Accord-
ingly, be sure to set the engine in this
mode.
16. Rotate the engine with the starting motor and
measure the compression pressure.
a Read the pressure gauge pointer when it
is stabilized.
17. After finishing testing, remove the testing tools
and return the removed parts.
a Install the injector and fuel high-pressure
tube according to the following procedure.
1) Mate protrusion (a) of the injector with
notch (b) of the holder, and set the injector
to the cylinder head.
a Set the injector with the above mating
position toward the fuel inlet connec-
tor insertion side.
2) Coat the O-ring of injector (14) and the
mounting hole on the head with engine oil
(EO15W-40).
3) Assemble holder (13) on injector (14) then
insert the assembly into the cylinder head
with the fuel inlet hole of injector (14) on
the intake manifold side.
4) Tighten bolt (12) by three or four threads
with hands.
5) Coat the O-ring of inlet connector (11) and
the mounting hole on the head with engine
oil (EO15W-40).
6) Install inlet connector (11) temporarily with
retainer (10).
3
Retainer:
30 Testing and adjusting
15 ± 5.0 Nm {1.5 ± 0.5 kgm}
114E-3 Series