SANY LATIN AMERICA
6-29
SY195/205/215/225C9 Crawler Hydraulic Excavator
Testing and Adjusting
Shop Manual - June 2013
3) Check the pressure again after adjust-
ment. Measure the pressure according
to the procedure described above.
●
Connect the pilot hose before measur-
ing the pressure.
●
Adjustment of the high pressure setting
side will affect the low pressure setting
side. The low pressure setting side is,
therefore, to be adjusted too.
2. Adjustment of swing relief pressure
NOTE: If the swing relief pressure is ab-
normal, adjust the swing motor relief valve
(6) as per the following.
6
7
8
ZXT225-1104003
ZX215-1004030
7
8
1) Loosen the locknut (7). Turn the adjust-
ment screw (8) to adjust the pressure.
Pressure rises as the screw turns right.
Pressure drops as the screw turns left.
Each turn of the screw equals about:
6.71 MPa { 68.4 kgf/cm²}
Locknut:
78-103 N·m{8.0-10.5 kgf·m}
2) Check the pressure again after adjust-
ment. Measure the pressure according
to the procedure described above.
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