Some of the most important machines in a facility are also the least documented.
Many plants rely on equipment that has been operating for decades. The mechanical systems are often still reliable and the process remains important to production. Over time, however, the documentation surrounding these machines can become incomplete. Original programmers move on, engineering records are lost, and replacement components become difficult to source.
When a failure eventually occurs, the greatest challenge is often not the repair itself. The challenge is understanding how the system was originally designed to function.
Arthco provides engineering services focused on protecting these machines before they become emergencies. The objective is to reduce the risk that a critical piece of equipment becomes difficult or impossible to recover after an unexpected failure.
Understanding the existing system
Our process begins with a structured reverse engineering effort that documents how the equipment currently operates. This work typically includes operator interviews, component analysis, review of available documentation, and evaluation of the existing PLC program.
This analysis allows the engineering team to reconstruct the system architecture and capture the operational knowledge that has developed over years of use.
Deliverables that support long term reliability
Electrical documentation
Reconstructed or newly developed schematics for legacy control systems.
Component risk identification
Evaluation of control cabinet components to identify obsolete or high risk parts.
Operational documentation
Clear description of system behavior and recovery procedures following a fault or failure.
Modernization planning
Practical options for future control upgrades or technology improvements.
Protecting knowledge before it is lost
Legacy equipment often continues to perform its role effectively, but the knowledge required to support it gradually disappears. Capturing that information and establishing a recovery plan ahead of time can prevent extended downtime when a failure occurs.
Documenting and evaluating critical equipment before it fails allows maintenance teams to respond quickly and restore production with confidence.