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| Illustration 1 | g00296905 |
Caterpillar Monitoring System Display Components (1) Quad gauge module. (2) Speedometer/tachometer module. (3) Main display module. (4) Alert indicators. (5) Gauges. (6) Tachometer. (7) Ground speed readout. (8) Transmission gear readout. (9) Display area. | |
Normal mode is used during normal machine operation. When you are in normal mode, the Caterpillar Monitoring System performs the following operations.
- A monitoring system that is operating properly will perform a self test whenever the key switch is turned to the ON position. The outputs also operate for a brief instant. See Testing and Adjusting, "System Self Test ".
- The main display module continuously watches machine systems. If the gauges are available, the gauges in the quad gauge module show a value in a normal range. Ground speed readout (7) is shown as a numeric value and the transmission gear readout (8) on the module shows numeric values. The value for a condition may also be shown in the display area.
- The main display can show a problem with the machine. The main display module continuously monitors machine systems. When an abnormal condition (problem) exists, the corresponding alert indicator (4) FLASHES. As the severity of the problem increases, the action lamp FLASHES and the action alarm SOUNDS. See System Operation, "Warning Operation".
Note: The main display module may notify the operator when a diagnostic code exists in other electronic systems. This is done in different ways. The following example is of a diagnostic code that occurs in the engine electronic system. The service code indicator will show "SERV CODE" and the alert indicator for "check engine" FLASHES. See the Operation And Maintenance Manual for the machine that is being serviced for more specific information on the machine.
Operator Modes
| D250E Series II, D300E Series II, D350E Series II, And D400E Series II | |
|---|---|
| Operator Modes | |
| Operator Mode | Mode Number |
| Service Meter | 0 |
| Odometer | 1 |
| Tachometer | 2 |
| Diagnostic Scrolling | 3 |
The six digit display area (9) is used to show various conditions of the machine system to the operator (Operator Modes). Operator modes that are available to the operator are dependent to the monitoring system that is installed on the machine. The table above lists the operator modes by the machine.
The default condition is shown on the six digit display area when the main display module enters normal mode. This condition is normally the service meter. See System Operation, "Service Meter Mode" for more information.
The six digit display area scrolls through the available operator modes when the operator switch input is grounded. Opening the switch input will stop the scrolling on the currently shown mode. Mode numbers are not displayed when operator modes are scrolling.
See the topic with the corresponding name on the following pages for a more detailed explanation of each mode.
Optional Machine Conditions
The display area may be used to show other information on the condition of the machine. For example, the display area may be used as a gear readout when the speedometer/tachometer module is not used. The following situation occurs in order to function as a gear readout. The six digit display area changes from the default condition to the gear readout when the parking brake is DISENGAGED. The symbol for the service meter turns OFF and the information on the transmission gear is shown on the six digit display area.
The display area may also be used when ether is being injected with a flashing "E". A flashing "P" in the display area may be used when the engine is being prelubed. The following display modes are also available: the load count, the engine oil pressure and the charge pressure. See the table for the Monitoring System Mode on the Electrical System Schematic in order to determine the mode number for the corresponding machine.