GEAR (28 TEETH) 1S9962 - Caterpillar

Table 1
OPERATION    
Warning Category    Warning Indications (1)    Required Operator Action    Possible Result (4)    
Alert Indicator Flashes (2) Action Lamp Flashes    Action Alarm Sounds    
1     X             No immediate action required. The system needs attention soon.     No harmful or damaging effects.    
2     X     X         Change machine operation or perform maintenance to the system.     Severe damage to components.    
3     X     X     X (3)     Immediately perform a safe engine shutdown.     Operator injury or severe damage to components.    
( 1 ) The warning indications which are active, are marked with an "X".
( 4 ) Possible result if no operator action is taken.
( 2 ) At a 10 Hz rate.
( 3 ) Pulsating alarm.The Caterpillar Monitoring and Display System (Instrument Cluster) informs the operator of an immediate problem with a machine system or an impending problem with a machine system. Warning operation begins when the main display module receives a problem signal. The problem signal reflects an abnormal condition of the machine. Warning operation also begins when the main display module detects a problem with the control system. Switches, sensors, and other electronic control modules on the machine provide signals to the main display module. The problem signals are the following conditions:Open switch - When a condition exceeds the trip point of the switch, the switch opens.Sensor signal exceeds the limits - The Main Display module determines the limits.Abnormal condition that is detected by another electronic control module - The abnormal condition is then communicated over the Cat Data Link to the Main Display module.The Main Display module analyzes the problem signals in order to notify the operator of a warning. Then, the display components of the Main Display module activate the appropriate warning indication on the Instrument Cluster. The following warning indications will notify the operator:
The alert indicator Flashes approximately nine times per second.
The action lamp Flashes for one second and the action lamp is OFF for two seconds.
The action alarm Sounds for one second and the action alarm is OFF for two seconds. Note: In order to activate warning indications, more than one input is required. The main display module decides when the warning indications are activated.Problems from the machine system are classified into three warning categories. The categories are based on the severity of the problem. The categories also dictate the required response of the operator. Warning Category 1 represents the least severe problem and warning Category 3 represents the most severe problem. The warning categories are identified for the operator according to the combination of warning indications that are active. See the Table 1 for Warning Operation. Note: See the Operation and Maintenance Manual for complete information on the Warning Operation.