120H, 12H, 135H, 140H, 143H, 160H and 163H Motor Graders Caterpillar


Location of Components (Electrical System)

Usage:

120H 124



Illustration 1g01857075

(1) Transmission Control

(2) Key Start Switch

(3) Temperature Control

(4) Battery Disconnect Switch

(5) Alternator

(6) Starting motor

(7) Batteries

(8) Data Link

(9) Monitoring System

Transmission Control




Illustration 2g00926471

The transmission control is located beside the operator's seat.

Key Start Switch




Illustration 3g00921001

The key start switch is located on the operator's console.

Temperature Control




Illustration 4g00920990

The temperature control is located on the operator console.

Battery Disconnect Switch




Illustration 5g00920827

Open the access cover on the right side of the machine. The battery disconnect switch is located in the engine compartment.

Alternator




Illustration 6g00921145

The alternator is part of the engine assembly.

Starting Motor




Illustration 7g00921950

The starting motor is located on the rear of the engine.

Batteries




Illustration 8g00920816

The batteries are located in the rear of the engine compartment on the right side of the machine.

Data Link




Illustration 9g00926475

The data link connector is located to the right of the driver's seat.

Monitoring System




Illustration 10g00926473

The machine monitor is located in the cab.

Alert Indicators

The indicators are located on the machine monitor. Refer to the other sections of this manual for details on the monitor. As an automatic lamp test, all of the alert indicators will light when the engine start switch key is turned to the ON position. The lamps should stay on for three to five seconds. The action alarm should also sound. If all of the alert indicators do not come on or if the action alarm does not sound, investigate the cause.

Note: The alert indicators are part of the monitoring system.

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