ENGINE AR-PRIMARY 1779748 - Caterpillar

Tractor Monitoring System
Illustration 1 g00751128
Caterpillar Monitoring System (Tractor) The quad gauge module and the speedometer/tachometer module are optional components.
Illustration 2 g00758915
Caterpillar Monitoring System Display (1) Indicator for the Scraper Caterpillar Monitoring System ( 627G/ 637G only) (2) Indicator for the Tractor Caterpillar Monitoring System ( 627G/ 637G only) (3) Quad gauge module (4) Tractor Caterpillar Monitoring System (5) Alert indicators (Tractor) (6) Speedometer/Tachometer module (7) Gauges (8) Display area (9) Action lamp (10) Tachometer (11) Speed readout (12) Transmission gear readout (13) Switch (mode select) of the Caterpillar Monitoring System (14) Switch (Tractor/Scraper Select) for Caterpillar Monitoring System ( 627G/ 637G only) (15) Action lamp (16) Scraper Caterpillar Monitoring System (17) Switch (mode select) for the Scraper Caterpillar Monitoring System (18) Alert indicators (Scraper)The Caterpillar Monitoring System in the tractor cab is an electronic monitoring system that continuously watches machine systems. The system is a flexible modular monitoring system that includes the following devices: a main display module, various switches and sensors, an action lamp and an action alarm. The system also includes a speedometer/tachometer module and a quad gauge module.The main display module is the brain of the tractor monitoring system. This module receives information from the switches, sensors and other electronic controls on the machine via the CAT data link. The main display module processes all of the information. The module then activates various outputs. The outputs could be in the display area of the main display module, the quad gauge module, the speedometer/tachometer module, the action lamp, or the action alarm. The display components show the condition of the machine systems. The operator or the service person can also obtain system diagnostic information.When power is applied, the machine serial number is used in order to determine the type of machine that is being operated. The module will perform only the intended functions for the machine. The main display module is required for the monitoring system to operate. Tractor Mode / Scraper Mode ( 627G or 637G ONLY) On a machine with a rear engine ( 627G or 637G) the main module can also show the current state of the rear Caterpillar Monitoring System. When the tractor Caterpillar Monitoring System is in tractor mode the tractor mode lamp will be illuminated. In the tractor mode the alert indicators, speedometer/tachometer module, quad gauge module, action alarm and action lamp show information for the tractor portion of the Wheeled Tractor-Scraper. When the tractor Caterpillar Monitoring System is in scraper mode, the scraper mode lamp will be illuminated. In scraper mode the alter indicators, speedometer/tachometer module, quad gauge module, action alarm and action lamp, show information for the scraper portion of the Wheeled Tractor-Scraper.Main Display Module
The ten alert indicators (5) show abnormal conditions in the machine.
A six digit display area (8) is provided. The display area contains seven unit indicators and a service indicator. The display can show operator mode information such as engine RPM and service hour meter or service information (such as the current units being