SANY LATIN AMERICA
4-28
SY195/205/215/225C9 Crawler Hydraulic Excavator
Structure and Function
Shop Manual - June 2013
a1: F. pump main pressure detection port
a2: R. pump main pressure detection port
a3: F. pump regulator pressure detection port
a4: Adjustor control pressure detection port
a5: Pilot gear pump output pressure detection port
PH1: F. pump pressure sensor assembly port
PH2: R. pump pressure sensor assembly port
A1: F. pump delivery port
A2: R. pump delivery port
A3: Pilot gear pump delivery port
Psv1: F. pump regulator control port
Psv2: R. pump regulator control port
Dr1: F. pump drain plug
Dr2: R. pump drain plug
Dr3: Air bleeder
Dr4: Drain plug
B1: Pump suction port
B3: Pilot gear pump oil suction port
1) Front
pump
2) Rear
pump
3) Pilot gear pump
4) Front pump regulator
5) Rear pump regulator
Outline
●
This pump consists of 2 variable capacity swash plate plunger pumps, 2 regulators, and 1 pi-
lot gear pump.
NOTE: For the location of the hydraulic pump on the machine, see “Hydraulic equipment layout”
on page 4-24.
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