SEBU7901-01 27 Operation Section Features and Controls Start Switch (9) The start switch has three positions: OFF, RUN, and START. When the start switch is turned clockwise to the RUN position, the lamps will flash for five seconds during the system test. The lamps will then shut off. In the RUN position, the ECM and electronic systems are powered up. Caterpillar Messenger Display Idle Speed Switch (10) When the switch is in the up position, the engine speed increases to HIGH IDLE. When the switch is in the down position, the engine speed decreases to LOW IDLE. Maintenance Lamp (11) The ECM records data that is related to equipment maintenance.
The ECM will activate the maintenance indicator lamp when scheduled maintenance is due. The maintenance indicator lamp can be reset by actuating the maintenance clear switch. The maintenance interval may be based on operating hours or fuel consumption. The ECM provides information that pertains to maintenance intervals and the last maintenance that was performed. g01063102 Illustration 21 Digital display area (15) The Messenger system shows information on the digital display area. Previous button (16) Use the previous button to return to information that was previously shown on the digital display area.
Maintenance Clear Switch (12) The maintenance clear switch is required to reset the maintenance lamp after maintenance on the engine is performed. “Scroll up/scroll left button” (17) This button is used to scroll up through information that is shown on the display area. The button can also be used to scroll to the left through information that is shown on the display area. Shutdown Switch (13) Use the engine shutdown switch in order to stop the engine. Push the shutdown switch in order to put the switch in the OFF position. This will stop the engine. After the engine stops, turn the knob clockwise. This will reset the engine shutdown switch to the ON position.
“Scroll down/scroll right button” (18) This button is used to scroll down through information that is shown on the display area. The button can also be used to scroll to the right through information that is shown on the display area. OK button (19) This button may be used in order to confirm the selections that were selected with the“scroll up/scroll left” buttonand with the “scroll down/scroll right” button. Service Tool Connector (14) For more information regarding the use of Caterpillar Electronic Technician (ET) and the PC requirements for Cat ET, refer to the documentation that accompanies your Cat ET software.
Performance Monitor Screen The following options are available through the performance monitor screen: Engine Speed When you scroll to this option, the performance monitor screen will show the engine RPM. Engine Coolant Temperature When you scroll to this option, the performance monitor screen will show the engine coolant temperature in degrees fahrenheit or in degrees celsius. Fuel Level When you scroll to this option, the performance monitor screen will show the amount of fuel that remains in the fuel tank as a percentage of a full tank.