E 15ca428 appears in the alarm of Komatsu 240 Bar 8 excavator.

1, too much carbon deposit in the intake system and intake valve roots, resulting in too lean mixture concentration during cold start. ?

Solution: Clean the air intake system. ?

2. The throttle is dirty and the air intake is insufficient. ?

Solution: clean the throttle. ?

3. The speed of the starter can't meet the requirements. ?

Solution: increase the speed of starter.

Extended data:

Basic common sense

1. Excavators are fixed assets with large economic investment. In order to improve its service life and obtain greater economic benefits, the equipment must be staffed, scheduled and fixed, and the responsibilities must be clearly defined. When the post must be transferred, the equipment shall be disclosed.

2. After the excavator enters the construction site, the driver should first observe the geological conditions and surrounding environment of the working face, and there should be no obstacles within the rotating radius of the excavator to avoid scratching or damaging the vehicle.

3. After the machine is started, no one is allowed to stand on the bucket, shovel arm and crawler to ensure safe production.

4. When the excavator is working, it is forbidden for anyone to stay or walk within the radius of gyration or under the bucket. Non-drivers are not allowed to touch and touch the cab, and they are not allowed to bring training drivers to avoid damaging electrical equipment.