SANY LATIN AMERICA
4-109
SY195/205/215/225C9 Crawler Hydraulic Excavator
Structure and Function
Shop Manual - June 2013
4.6.8 Pilot valve
4.6.8.1 Work equipment and swing pilot valve
ZX215-1002113
1
2
3
4
P
P
P4
A
P1
A
P3
P2
T
64~73.5Nm
19~22Nm
P:
From pilot pump relief valve
P1:
L.H. Pilot valve: Arm OUT
R.H. Pilot valve: Boom DOWN
P2:
L.H. Pilot valve: Arm IN
R.H. Pilot valve: Boom UP
P3:
L.H. Pilot valve: Swing LEFT
R.H Pilot valve: Bucket DIG
P4:
L.H. Pilot valve: Swing RIGHT
R.H. Pilot valve: Bucket DUMP
T: To
tank
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