Komatsu PC130-7, Shop Manual

Page: 52 / 342

20-134
PC130-7
TESTING AND ADJUSTING
6. After finishing measurement, remove the mea-
suring instruments and return the removed parts.
Operation table of 2-stage relief solenoid valve
Operation table of swing holding brake solenoid valve
Operation table of travel speed brake solenoid valve
Operation table of PPC pressure lock solenoid valve
Operating condition Operation
One-touch power maximizing switch: ON (8.5-sec timer)
ON Tr avel signal
Swing lock switch
Other than above condition OFF
Operating condition Operation
Work equipment, swing, and travel signals Any one is turned ON
ON
Swing holding brake release switch: RELEASE (Upper) position
Other than above condition OFF
Operating condition Operation
Travel speed switch: Lo
OFF
Auto shift function operates during run at Hi
Engine speed: Below 1,500 rpm
Pump pressure: Above 30.4 MPa {310 kg/cm
2
}
Overheat prevention function operates during run
at Hi
Hydraulic oil temperature: Above 95°C
Other than above condition ON
Operating condition Operation
Safety lock lever
LOCK position OFF
FREE position ON
MEASURING SOLENOID VALVE OUTPUT PRESSURE
(1)