Komatsu ecot3 PC300LC-8 Shop Manual page 390

SEN02625-06
Table for functioning conditions - Travel junction solenoid valve
When the travel steering signal is ON
When the travel steering signal is
OFF
Table for functioning conditions - Travel speed shifting solenoid valve
When the overheat 2nd setting is ON
When the fuel dial is at 1,200 rpm or lower
When the travel speed switch is at Lo
When the travel speed switch is
at Mi or Hi
Any other condition than above
Table for functioning conditions - 2-stage relief solenoid valve
Overheat 1st setting is ON
All of work equipment, swing, and travel signals are OFF
Swing lock switch is ON
Travel signal is ON
L mode is selected
Boom LOWER signal is ON
P or E mode is selected
Other than above conditions
50
Functioning conditions
When travel steering
independently oper-
ated
Any other condition than above
Functioning conditions
When signal of the travel is OFF
When signal of the
travel is ON
Operating condition
Left knob switch is ON
When F or R pump pressure is 34.3 MPa {350
kg/cm
When F or R pump pressure is 32.3 MPa {330
2
kg/cm }
When F or R pump pressure is 18.6 MPa {190
2
kg/cm }
Signals other than swing independent signal are
ON
Swing independent signal is ON
30 Testing and adjusting
2
}
PC300, 350-8
Func-
tion
ON
OFF
Func-
tion
OFF
ON
Opera-
tion
OFF
ON
OFF