Fault case
Model: R220LC-5
Fault Phenomenon: Arm oil tank has a pull mark, oil leakage user requirements: product quality problems, replacement of small arm oil cylinder test steps:
1. The agent finds a small axial diaphragm on the surface of the cylinder piston rod on the surface of the cylinder head seal in the cylinder head seal.
2. To exclude electric shock, etc., this fault is caused, and we ask the agent to carefully check
3. After the agent is detailed, it is considered that this fault is caused by the quality problem. It is guaranteed: if it is the electric shock reason, they are responsible for purchasing the call
4. In this case, we allocated the accessory, but asked the agent to return the old pieces quickly, and transfer the digital photo to modern company.
5. Through the analysis of the old pieces and digital photos, it was found that the electric spark caused by low voltage electric shock after turning the photo.
Troubleshooting experience:
When checking the cause of the problem, you can't only look at the surface phenomenon. You must make full use of digital photos, computers and other tools, but also to learn from the past experience.
