Caterpillar cat dp50k forklift lift trucks chassis and mast service repair manual sn:t28b 50001 and

Page 33

ELECTRICAL SYSTEM

Chassis Electrical Devices Gasoline- and LP-Gas-engine models Travel speed select switch View A ECU (Electronic control unit)

Power source

Solenoid valve

Fuse box Pressure switch Horn

Fusible link

Travel speed sensor (pulse generator)

To front combination lamps

To rear combination lamps

Spare terminal

Ground on body

Backup buzzer

Spare terminal

Ground on body To console box

A

ECU power source

To rear combination lamps

To front combination lamps

T/C oil thermounit

Brake fluid level sensor

Fuel tank unit Stop lamp switch

The electrical system is divided into engine electrical system and chassis electrical system. Following are the components involved in the chassis electrical system: (1) Wire and fuses (2) Lighting system: Head lamps, working lamp and backup lamps (3) Signaling system: Turn signals, clearance lamps, tail/stop lamps, license plate lamp and horn (4) Instruments The circuit is a one-wire negative-ground system.

3-3

Starter relay 207548


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