Komatsu PC500LC-10R Shop Manual page 439

30 TESTING AND ADJUSTING
Remove the testing tools and restore the machine after the test
is finished.
Install the injector, injector wiring harness, and fuel high-pres-
sure tube according to the following procedure.
1.
Install the O-rings (8), (9), and gasket (10) to injector (5).
2.
Fit the holder (11) to injector (5) to temporarily assemble
them as a unit to the cylinder head.
3.
Fit spherical washer (13) to mounting bolt (12) and tighten
2
them to the cylinder head.
Spherical part of washer:
Engine oil (SAE30DH)
3
Mounting bolt:
58.8 to 73.5 Nm {6.0 to 7.5 kgm}
4.
Insert the harness (14) into the rocker arm housing, and fix it with the mounting bolt (15).
5.
Insert the wiring harness (14) into holder (16).
6.
3 Alternately tighten 2 nuts at the end of wiring harness (14) to injector (5).
Nut:
2.0 to 2.4 Nm {0.2 to 0.24 kgm}
7.
3 Tighten the tube (17) to injector (5).
Sleeve nut:
39.2 to 49.0 Nm {4 to 5 kgm}
8.
Tighten the clamping bolt of the fuel piping. 3
Clamp bolt:
11.8 to 14.7 Nm {1.2 to 1.5 kgm}
3
Rocker arm assembly mounting bolt:
58.8 to 73.5 Nm {6.0 to 7.5 kgm}
9.
Adjust the valve clearance by referring to the "TEST AND ADJUST VALVE CLEARANCE". 3
Cylinder head cover mounting bolt:
9.8±1 Nm {1.0±0.1 kgm}
PC500LC-10R
TEST COMPRESSION PRESSURE
30-33