SANY LATIN AMERICA
4-181
SY195/205/215/225C9 Crawler Hydraulic Excavator
Structure and Function
Shop Manual - June 2013
Function
●
Control the pump swash plate angle ac-
cording to the operation of bucket control
lever.
Operation
●
When the bucket control lever is operated,
the controller collects the signal from the
bucket DUMP pressure sensor and bucket
CURL pressure sensor, and controls the
bucket con
fl
uence proportional valve.
4.9.5.1 Bucket fl ow control
ZX215-1002201
Max
Min
Swash plate angle
Bucket control lever
PPC pressure
ZX215-1002202
750mA
300mA
Bucket confluence
proportional
valve current
Bucket control lever
PPC pressure
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