Outline - Hitachi ZW180 Technical Manual

OUTLINE

The electrical circuit is broadly divided into the main
circuit, lamplight circuit and control circuit
•
Main Circuit
Circuit for engine start/stop, circuit for battery
charging and circuit for accessories
•
Lamplight Circuit
Circuit for traveling (composed of head lights, turn
signals, brake lights and horn)
•
Control Circuit (Refer to the SYSTEM/Control
System group.)
Control circuit for engine, pumps, transmission and
valves [composed of actuators as solenoid valves,
MC (main controller), ECM (engine control module),
ICF (information controller), monitor unit, switches,
sensors and pressure switches]
In this group, functions and compositions of the main
circuit and lamplight circuit are explained.
SYSTEM / Electrical System
T2-4-1