CONDUIT AS 4979639 - Caterpillar

Illustration 1 g06187886The machine Electronic Control Module (ECM) is programmed with a machine maintenance reminder. When this reminder activates, it triggers error code 874, "Maintenance Interval". If the machine is not equipped with the optional multifunction display monitor, the code number and the yellow maintenance icon will display on the gauge cluster. The factory default interval for the machine maintenance reminder is 500 hours. The reminder interval can be changed via the "Operator Tools" menu using the handheld analyzer. The reminder interval ranges from 100 hours to 500 hours.
Illustration 2 g06188213If the machine is equipped with the optional display monitor as shown in Illustration 2, then the completed maintenance can be recorded using the monitor. Use the access level 2 passcode, 33271, to navigate to "Maintenance" - "Maintenance Log Entry", and select the maintenance interval that has been completed.If the machine is not equipped with a display monitor, there are two ways to reset the reminder and clear the 874 error code after performing the required maintenance.
Illustration 3 g06187890Method 1: Press and hold the two display brightness control buttons (Illustration 3) simultaneously.Method 2: Using the handheld analyzer, navigate to "Operator Tools", select "Confirm Machine Maintenance", then select "Yes".