5-10t Internal Combustion Counterbalance Forklift Truck Operation & Maintenance Manual
2. Electrical System
2.1 Overview
Electrical system is a negative earthed single-wire circuit. It is compared to the “Nervous
System” of forklift trucks. The electrical system is mainly composed of several units as
follows (Electrical Schematic Diagram as indicated in Fig 2-1).
1) Charging System
It is composed of generator, battery, and charging indicator light, etc, to provide the forklift
trucks with power supply for power consumers, Voltage: DC24V.
2) Starting System
It is mainly comprised of preheating system, start switch, start protective circuit, and starter,
etc, and its function is to start engine.
3) Shutdown Control System
Shutdown control system mainly consists of start switch, flameout relay, and flameout stay
wire/flameout solenoid valve, etc.
4) Instrument System
It mainly includes hour meter, and oil quantity gage, as well as charging indicator light, oil
pressure indicator light, neutral position indicator light, air filter blockage warning light, and
oil-water separator indicator light, etc, as the test equipment on forklift truck.
5) Lighting and Signal Equipment
It includes various illuminations, signal lights and horn, as well as buzzer, etc.
Front Headlight: 70W
Front Combination Light (Steering/Width) 21W/8W
Rear Combination Light (Steering/Width/Reversing/Brake): 21W(Yellow) /8W(Yellow)
/10W(White) /21W(Red)
Caution Light (Optional Part): 21W
Rear Headlight (Optional Part): 70W
License Plate Light (Optional Part): 10W
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