Optional Equipment
Safety, Operation and Maintenance Manual - Aug 2012
8-6
SY115C9/135C/155H Crawler Hydraulic Excavator
8.2 Hydraulic Control Elements and Oil Circuit
8.2.1 Location of the components
(1) Stop valve
(2) Selector valve
(3) Control pedal
Fig. 8-1
8.2.1.1 Stop valve
Stop valve stops hydraulic oil
fl
ow.
(a) Unlocked position allows flow of the hy-
draulic oil.
(b) Locked position stops
fl
ow of the hydraulic
oil.
Switch the valve to locked position when re-
moving or installing an optional equipment.
Fig. 8-2
2
3
1
CZ135B-1105001
1
a
b
CZ135B-1105002