Komatsu PC500LC-10R Shop Manual page 497

30 TESTING AND ADJUSTING
4.
Remove the connector of PPC circuit to be checked, and
remove the pressure sensor.
REMARK
See "PPC circuit relational table" for combinations of PPC
circuit, connector, and pressure sensor.
PPC circuit relational table
Name of PPC circuit
Bucket CURL
Bucket DUMP
Left travel (FORWARD)
Left travel (REVERSE)
Boom LOWER
Boom RAISE
Swing RIGHT
Swing LEFT
Right travel (FORWARD)
Right travel (REVERSE)
Arm OUT
Arm IN
5.
Install the joint C, install the nipple A2 of the hydraulic test-
er A, and then connect them to gauge A1.
REMARK
Gauge in the digital hydraulic tester B can also be used in-
stead of the gauge A1.
6.
Turn the battery disconnect switch to ON position.
7.
Start the engine.
8.
Select and display "Pre-defined Monitoring" (01/11) by re-
ferring to "SET AND OPERATE MACHINE MONITOR".
9.
Adjust the hydraulic oil temperature so that it is within the specified range.
10. Set the working mode to P ("Power Mode").
11. Turn the fuel control dial to MAX (High idle) position.
PC500LC-10R
TEST PPC VALVE OUTLET PRESSURE
Pressure sensor
1
5
9
10
2
6
3
7
11
12
8
4
Pressure sensor connector
P01
P05
P09
P10
P02
P06
P07
P03
P11
P12
P08
P04
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