Optional Equipment
SY215C LC/SY225C LC Excavator OMM
7-4
Operation and Maintenance Manual — 1219
SANY
Return Flow Selector Valve
The return flow selector valve (1) can change the direction
of hydraulic oil flow. The direction of hydraulic oil flow is
determined by the attached optional equipment.
With the handle positioned up (2), oil in the return circuit will bypass the hydraulic oil cooler and the return filter,
meeting the low back-pressure requirement of most hydraulic hammers.
One-Way Hydraulic Attachment
Bidirectional Hydraulic Attachment
Use this position for breaker attachment.
Use this position for shear attachment.
Fig. 7-4
1
Fig. 7-5
2
Fig. 7-6
3
