Long-Term Storage - Komatsu PW130ES-6K Operation & Maintenance Manual

OPTIONS, ATTACHMENTS
METHOD FOR RELEASING PRESSURE IN CON-
TROL CIRCUIT OF MACHINES EQUIPPED WITH
ACCUMULATOR
1. Lower the work equipment to the ground. Close any attach-
ment such as the crusher.
2. Stop the engine.
3. Set the lock control lever pad safety lock completely in the
FREE position, operate the work equipment control lever and
attachment control pedal fully to the front, rear, left, and right,
to release the pressure in the control circuit.
4. Set the lock control lever pad safety lock completely in the
LOCK position, then lock the control levers and attachment
control pedal. Note that this does not completely release the
pressure, so when removing the accumulator in the control
circuit, loosen the connections slowly and do not stand in the
direction where the oil spurs out.

LONG-TERM STORAGE

If the machine is not to be used for a long time, do as follows.
Set the stop valve in the LOCK condition.
G
Install a blind plug to the valve.
G
Set the selector valve to the position for general attachments
G
such as the crusher.
If there is no breaker or general attachment installed, operating
the pedal may cause overheating.
SPECIFICATIONS
Hydraulic specifications
Oil flow
G
Clamshell rotation
60l /min
Cracking pressure of safety valve
G
When using breaker: 17200 kPa (175 kg/cm²).
Working mode
Breaker
206l /min.
MACHINES READY FOR ATTACHMENTS
247