Testing And Adjusting Work Equipment, Swing, And Travel Circuit Oil Pressures - Komatsu Galeo PC800-8 Shop Manual

SEN00788-02
Testing and adjusting work
equipment, swing, and travel
circuit oil pressures
a Testing and adjusting instruments for work
equipment, swing, and travel circuit oil pres-
sures
Symbol Part Number
799-101-5002
K
790-261-1204
Measurement
a Measure the work equipment, swing and travel
circuit oil pressures under the following condi-
tions:
• Hydraulic oil temperature: 45 – 55°C
a The work equipment, swing, and travel circuit oil
pressures can be checked in the monitoring
function of the machine monitor, too. (For the
operating method, see "Special functions of
machine monitor".)
• Monitoring code: 01100 F pump pressure
• The pump oil pressure is displayed in 0.1
MPa {kg/cm , PSI).
2
4
Part Name
Hydraulic tester
Digital hydraulic tester
01101 R pump pressure
1. Preparation work
k Lower the work equipment to the ground
and stop the engine. Operate the control le-
vers several times to release the residual
pressure in the piping, and then loosen the
oil filler cap of the hydraulic tank slowly to
release the internal pressure of the hydrau-
lic tank.
1) Open the pump compartment cover.
2) Connect oil pressure gauges [1] of hydraulic
tester K to quick couplers (1) – (2) installed
to the outlet of each pump of the circuit to be
measured.
a (1): Front pump side, (2): Rear pump side
a The relief pressure of the boom LOWER
circuit can be measured only in the front
pump circuit.
a The relief pressure of the bucket DUMP
circuit can be measured only in the rear
pump circuit.
a The relief pressure of the swing circuit
can be measured only in the front pump
circuit.
a Use the oil pressure gauges of 60 MPa
{600 kg/cm
30 Testing and adjusting
}.
2
PC800, 850-8