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| Illustration 1 | g00899709 |
Caterpillar Monitoring System (1) Gauge cluster (2) Tachometer (3) Digital speedometer (4) Actual gear indicator | |
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| Illustration 2 | g00899710 |
Caterpillar Monitoring System (5) Action lamp (6) Alert indicators (7) Digital display window | |
In order to check the operation of the Caterpillar Monitoring System, observe the self test when the engine start switch is turned from the OFF position to the ON position.
The Caterpillar Monitoring System will perform an automatic self test at start-up whenever the engine start switch is turned to the ON position. First the Caterpillar Monitoring System calibrates gauge cluster (1) and tachometer (2). Before the beginning of the system test, gauge cluster (1) ) and tachometer (2) go from the initial value to zero. Then, the Caterpillar Monitoring System performs a test.
Note: The battery disconnect switch must be in the ON position in order to supply the operator's station with electrical power for the self test.
Alert indicators (6) flash for approximately three seconds in order to permit the operator to know that the indicators are functioning properly. Certain diagnostics are not possible with the use of LED lamps, so it is important for the operator to visually inspect alert indicators (6) during starting. If an alert indicator does not flash, find the cause immediately. Also, if an alert indicator remains ON after three seconds, find the cause immediately.
Digital display window (7) will show the following readouts for approximately three seconds:
- All indicators of units (Deg C, kPa, miles, kilometers, rpm and liters).
- "X 10".
- Symbol for the service hour meter.
- "888.8.8.8" in the six digit display area.
The self test will also activate the gauge panel to show the following:
- The gauges in gauge cluster (1) and tachometer (2) will be calibrated. The gauges will sweep to half scale and the gauges will return to zero. Then, the gauges will sweep to full scale and the gauges will return to operating values.
- Digital speedometer (3) activates every segment of the display. This will produce the following readout: "188", "MPH", and "km/h".
- Actual gear indicator (4) for the transmission activates every segment of the readout. You will see a "0" with an "X", and a "+" sign on top of the "0". There should be two of these symbols.
- Action lamp (5) illuminates.
- The action alarm will sound once.
If any of the alert indicators, action lamp, or digital readouts do not appear, or if the gauges do not sweep, the electrical system must be inspected. Perform all necessary repairs before the engine is started again.
If all the alert indicators and the action lamp come on, start the engine.
After you start the engine, observe the gauge panel and the monitoring panel. If any alert indicators or the action lamp remain on, or if the action alarm sounds, stop the engine. Inspect the electrical system and any other machine systems which were indicated. Perform all necessary repairs before the engine is started again.