Missing components
A missing component is diagnosed when the inspector detects that there is a part, part, element, or component that performs a function and is not in position.
Causes
The most common causes of missing components are:
- Bad assembly or removal of the component.
- Improper disassembly.
- Looseness due to vibration or impact.
- Detachment by impact.
- Lack of proper fit.
- Material wear.
- Corrosion.
Cases
Through visual inspections the most common cases of missing components that are diagnosed are:
- Bolts and nuts of covers, unions, couplings, and flanges.
- Covers, protections, guards, or covers of rotating elements (pulleys, couplings, and chains).
- Safety signs.
- Electric Connectors.
- Sensors or sensor cable.
- Insulating material or its coating.
Diagnosis
The detection of missing components in visual inspections is by direct observation or by verification with documentary or photographic records.