Komatsu ecot3 PC300LC-8 Shop Manual page 389

30 Testing and adjusting
5. Run the engine at full throttle, then turn each
solenoid valve ON or OFF by operating the
control levers and switches, and measure the
pressure.
a For conditions for turning each solenoid
valve ON or OFF, refer to the ensuing "Table
for functioning conditions" for each solenoid
valve.
a You can check operation of the solenoid
valves from the monitoring function of the
monitor panel (Special Function of Machine
Monitor).
Table for functioning conditions - PPC lock solenoid valve
Lock lever
Table for functioning conditions - Machine push up solenoid valve
Machine push-up switch
Table for functioning conditions - Swing holding brake solenoid valve
Signal of work equipment, swing and travel
PC300, 350-8
a When each output pressure shows the fol-
6. Remove the measurement tools after the
measurement, and make sure that the machine
is back to normal condition.
Functioning conditions
Operating condition
Functioning conditions
lowing values, it is judged normal.
Solenoid valve
OFF (De-energized)
ON (Energized)
When all signals are turned
OFF
When one of the signals is
turned ON
SEN02625-06
Output pressure
2
0 MPa {0 kg/cm }
2
3 MPa {30 kg/cm }
Func-
tion
Lock OFF
Released ON
Opera-
tion
ON ON
OFF OFF
Func-
tion
OFF
ON
49