Komatsu PC210-8 Shop Manual page 1090

UEN00663-02
Upper and lower control valve cover
q
2
Mating face of upper and lower control valve
cover block (SE):
SEALEND 242 or equivalent
Tighten the mounting bolts for the upper and
q
lower control valve cover in order of fig-
o o o
ure.(A D C B)
3
Mounting bolt for upper and lower control
covers:
156.9 – 176.5 Nm {16 – 18 kgm}
Pump merge-divider valve
q
2
Mating faces of merge-divider valve (SE2):
SEALEND 242 or equivalent
Tighten the mounting bolts for the merge-
q
divider valve in the same sequence as that for
the control valve cover mounting bolts.
3
Merge-divider valve mounting bolt:
156.9 – 176.5 Nm {16 – 18 kgm}
Tighten back pressure valve, boom lock valve,
q
arm quick return valve, arm check valve and
mounting bolts in the same order as that for
the control valve cover.
3
Back pressure valve, boom lock valve, arm
quick return valve, arm check valve mount-
ing bolt:
After assembling, put a stopper (CAP) so that
q
not to flow into oil and detergent liquid from
ø12 hole.
Pressure compensation valve
q
a Install each pressure compensation valve,
paying attention to the counter mark that
was put when removing it. Especially, do
not install BKC1 and BKC2 adversely.
Main relief valve assembly After assembling
q
the main relief valve assembly in the control
valve, refer to the section of Inspection and
Adjustment of Hydraulic Oil Pressure in
Hydraulic Circuit for Work Equipment, Swing
and Travel in the chapter, Testing and adjust-
ing, in this manual.
16
58.8 – 73.6 Nm {6 – 7 kgm}
50 Disassembly and assembly
PC210, 230, 240-8