Komatsu 830E-AC Shop Manual page 326

SENSORS
Temperature Sensors
Temperature sensors (Figure 11-9) monitor the
ambient air temperature and the hydraulic oil temper-
ature. An ambient air temperature sensor is located
on the left side of the air blower inlet duct for the trac-
tion alternator. The hydraulic oil temperature sensors
are located at each wheel to measure the oil temper-
ature as it leaves each brake assembly.
FIGURE 11-9. TEMPERATURE SENSOR
D11-18
Pressure Sensors
Four pressure sensors (Figure 11-10) have been
added to the truck to monitor various hydraulic cir-
cuits. The four circuits are:
• both inlets to the hoist valve
• steering supply circuit
• front brake apply circuit
The hoist pressure sensors are both located right at
the inlet of the hoist valve. The front brake apply
pressure sensor is located in the brake circuit junc-
tion block in the hydraulic cabinet behind the cab.
The steering pressure sensor is located on the bleed-
down manifold in the port labeled "TP2".
FIGURE 11-10. PRESSURE SENSOR
1. Pin 1, Input (Brown)
2. Pin 2, Signal (Red)
VHMS COMPONENTS
3. Sensor
D11005