If the vacuum pump of the EIS machine fails, who can replace the pump?

Replacing the vacuum pump of the Emission Inspection System (EIS) machine is a task that requires specific knowledge and training related to the emissions testing equipment. A certified smog check inspector is trained to understand the functions and maintenance of the testing equipment, including the EIS machine and its components, such as the vacuum pump. This certification denotes a level of expertise that ensures they can not only perform such a replacement safely but also ensure that the machine operates correctly after the change.

It's important to ensure that the replacement is done according to the manufacturer's specifications and that the system remains compliant with regulatory standards. Only individuals with the proper training and certification are generally permitted to make these repairs, as they are knowledgeable about the necessary safety protocols and operational requirements associated with emissions testing.