Komatsu — Central Warning Lamp

OPERATION Types of Warnings If an abnormality occurs on the machine or if any switch or lever is operated accidently, the monitor display and buzzer give a warning to inform the operator. The types of warnings are explained in the following paragraphs. These warnings are divided into different danger levels. Remark For details of action codes E03 to E01, see “Action Code Display” on page 2-10. Emergency Stop This warning is given if there is a serious failure that affects the normal operation of the machine or if the setting is incorrect. The central warning lamp on the monitor and the caution lamp for the location of the abnormality illuminate.

At the same time, the alarm buzzer sounds and action code E03 is displayed on character display (1). Caution This warning is given if the coolant or oil overheats. The central warning lamp on the monitor and the individual caution lamps illuminate. At the same time, the alarm buzzer sounds and action code E02 is displayed on character display (1). Mistaken Operation This warning is given if any switch or lever is operated by mistake. The central warning lamp on the monitor illuminates and the alarm buzzer sounds at the same time.

Inspection and Maintenance This warning is given if it is necessary to carry out inspection and maintenance of wear parts, or if it is necessary to check the oil or coolant level. The individual caution lamp on the monitor illuminates. At the same time, action code E01 is displayed on character display (1). In the case of this warning, the central warning lamp does not illuminate and the alarm buzzer does not sound. Central Warning Lamp The central warning lamp (1) illuminates if there is any emergency stop item or caution item, or if mistaken operation of any switch or lever occurs. At the same time, the alarm buzzer sounds.

Check the content of the display and carry out the specified action for that item. 2-8 WA430-6