SANY SY500H, Operation And Maintenance Manual

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OPTIONAL EQUIPMENT
7-3 SY500H Excavator OMM
Equipment Control Valves
A variety of optional one-way and two-way flow
equipment is available for use on this machine. A
hydraulic breaker is an example of one-way flow
equipment, and a shear is an example of two-way flow
equipment.
The equipment control valves are two stop valves and a
return flow selector valve. The two stop valves are
mounted on the machine arm, and the return flow
selector valve is near the base of the boom, in the center
of the machine.
NOTE: Consult a SANY dealer for hydraulic flow and
pressure adjustment needed for the attached
equipment.
Stop Valves
0004953
Figure 7-1
The stop valves (1) control the flow of the hydraulic oil to
optional equipment when mounted to the arm.
NOTE: A stop valve is mounted on each side of the arm.
The right side is shown.
0004809
Figure 7-2
• In the open position (2), the line in the stop valve is in
line with the oil flow. This allows the hydraulic oil to flow
to the equipment.
0004808
Figure 7-3
NOTE: Turn the stop valve to the closed position when
installing or removing optional equipment.
• In the closed position (3), the line on the stop valve is
perpendicular to the oil flow. This prevents hydraulic oil
from flowing past the stop valve.
1
2
3