The Caterpillar Monitoring System continuously monitors the numerous machine systems. The alert indicators show any abnormal condition of the machine.
 | |
| Illustration 1 | g00540594 |
Caterpillar Monitoring System (1) Parking brake indicator. (2) Low oil pressure indicator for the brake system. (3) Action light. | |
Warning Categories
The Caterpillar Monitoring System provides three warning categories for the operator. Each warning category is a different level of severity and each warning category requires different actions by the operator.
Warning Category 1
A Warning Category 1 requires only operator awareness. When a Warning Category 1 occurs, the monitoring system causes an alert indicator to turn on.
For the brake system, a Warning Category 1 occurs when the parking brake is in the ENGAGED position. This causes parking brake indicator (1) to flash when you start the engine. The alert indicator will turn off when the parking brake is moved to the DISENGAGED position.
Warning Category 2
A Warning Category 2 needs operator response. When a Warning Category 2 occurs, the monitoring system causes one or more indicators to turn on. A Warning Category 2 also causes action light (3) to turn on.
For the brake system, a Warning Category 2 occurs when the hydraulic oil temperature reaches an excessive level in the hydraulic system. A change in the machine operation is required in order to reduce the excessive temperature.
Note: If the alert indicator and the action lamp continue to flash, DO NOT operate the machine until the cause of the problem has been fixed.
Warning Category 3
A Warning Category 3 requires immediate shutdown of machine systems. When a Warning Category 3 occurs, the monitoring system causes one or more alert indicators to turn on. The monitoring system also causes action light (3) to flash. The action alarm also sounds.
For the brake system, a Warning Category 3 occurs when there is a loss of brake oil pressure in the system. This causes low oil pressure indicator (2) for the brake system to turn on. A Warning Category 3 also occurs if the machine is in operation and the parking brake becomes engaged.
When a Warning Category 3 occurs during machine operation, stop the machine immediately and engage the parking brake. Stop the engine. Investigate the cause of the warning before returning the machine to service.
Note: DO NOT operate the machine until the cause of the warning has been corrected.
Reference: For additional information on the Caterpillar Monitoring System, refer to Operation and Maintenance Manual, "Caterpillar Monitoring System" for the machine that is being serviced.