SANY LATIN AMERICA
8-102
SY195/205/215/225C9 Crawler Hydraulic Excavator
Disassembly and Assembly
Shop Manual - June 2013
4. Assembling the piston rod assembly
1) Fix the piston rod (1).
2) Install the cylinder (2) on the piston rod.
NOTE: Make sure that the dust ring lip
or the U-ring lip is not stopped by the
shoulder of any part. Install the cylinder
head and the piston rod with the tools.
3) If the bottom side of cylinder contains
a buffer (not for bucket cylinder), install
the buffer bearing and the buffer seal in
the following order.
4) Let the notched side of the buffer seal
(10) face the piston while installing the
buffer seal (10) in the groove.
5) Install the buffer sleeve (8) according to
the indication in the illustration on the
right.
6) Install the stopper ring in the groove.
Install the elastic ring after the buffer
sleeve (8) is pushed to the bottom. A
rubber hammer should be used for the
tapping job in order to avoid damaging
the piston rod and the buffer bearing.
7) If the head side of cylinder contains a
buffer, install the buffer sleeve (6) and
the buffer seal (23) according to the fol-
lowing order.
8) The piston nut must be installed after
installation of the buffer bearing.
9) The buffer seal (23) must be installed in
the groove, with its notches facing the
piston.
2
1
ZX215-1006180
Assembly tool
9
10
8
11
ZX215-1006181
Gap facing thread direction
Thread
Piston rod
One gap
(2 pcs)
Head end buffer
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