PC800, 850-8 63
10 Structure, function and maintenance standard SEN00386-03
Sensors
• The signals from the sensors are input directly to
the engine controller and the pump controller
monitor.
The contact type sensors are always connected
at one end to the chassis GND.
Coolant level sensor
Name of sensor Type of sensor When normal When abnormal Input controller
Coolant level Contact type ON (closed) OFF (open) Monitor
Engine oil level Contact type ON (closed) OFF (open) Monitor
Engine oil pressure Analog — — Engine controller
Coolant temperature Resistance type — — Engine controller
Fuel level Resistance type — — Monitor
Air cleaner clogging Contact type ON (open) OFF (closed) Monitor
Hydraulic oil temperature Contact type — — Monitor
Main pump oil pressure Analog — — Pump controller
1. Sub-tank
2. Float
3. Sensor
4. Connector
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