Komatsu Galeo PC138US-8 Shop Manual page 793

50 Disassembly and assembly
4. Removal of injector assembly
1) Remove holder mounting bolt (12) and
remove holder (13). [*3]
2) Remove injector assembly (14). [*4]
PC138US, USLC-8
Installation
Carry out the installation in the reverse order of
q
removal.
[*1]
a Set the boot slit facing outward and downward.
a The boot is designed with fire safety to prevent
fuel from splashing onto the hot engine if fuel
leaks.
[*2]
k
Never bend a high-pressure pipe for the
convenience sake.
k
The clamp used for fixing a high-pressure
pipe must be a genuine Komatsu part and it
must be tightened to the specified torque.
k
Be sure to install the boot to the sleeve nut
after installing the high-pressure hose.
a Before Installing a high-pressure pipe, confirm
the following points. If any abnormality was
found, replace it with new one. Otherwise,
leakage of fuel can result.
No visible striations (b) or patchy dents (c) in
q
the taper seal portion of the connection ( (a)
portion: area 2mm inside the tip).
No deformation in portion (d) (at the end of the
q
taper seal portion: 2 mm inside the tip).
3
Sleeve nut (11):
25.5 – 29.4 Nm {2.6 – 3.0 kgm}
[*3]
3
Holder mounting bolt (13):
SEN02710-00
27 – 30 Nm {2.8 – 3.1 kgm}
5