SANY LATIN AMERICA
4-30
SY195/205/215/225C9 Crawler Hydraulic Excavator
Structure and Function
Shop Manual - June 2013
Function
●
The torque of the engine is transmitted
to the pump shaft (1), and drives cylinder
block (7) to rotate. At the same time, nine
plungers (6) slide along the thrust plate (8).
Plunger (6) moves back and forth inside
cylinder block (7) and pressurized oil is
sucked and discharged alternatively.
●
It is possible to change the discharge
amount by changing the swash plate an-
gle.
ZX215-1002020
18
1
5
A
4
18
17
6
B
13
7
8
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