SDLG LG6210E, Maintenance Manual

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Maintenance Manual
──LG6210E
Hydraulic Excavator
651
Table 110 Actuator drops for a while in the beginning of operation.
8 Hydraulic diagram
If you try to lift mining equipment, it will fall slightly before rising.
After turning off the motor, it is easy to check.
Repair or replace the load check valve.
After turning off the motor, this phenomenon is still there?
Output pressure of remote control valve is not adjusted correctly.
Repair or replace the remote control valve.
Replace the throttle valve with the throttle valve of a normal actuator ,
the problem goes away?
Replace throttle release valve.
Whether the spool of control valve is damaged, such as spring is broken or bolts are loose.
Repair or replace the control valve.
Repair or replace cylinder.