Time Loss Reasons
A loss refers to any event that reduces an asset’s efficiency or hinders its ability to produce or assemble a product. Proper configuration of loss data enables meaningful analysis of the root causes of production losses. This, in turn, supports the development and implementation of targeted improvement initiatives aimed at increasing asset efficiency and overall performance.Three main types of losses exist:
- Time losses
- Capacity losses
- Quality losses.
Time losses can be classified as follows:
- Availability loss: Any event that causes the asset to become stationary or inactive effectively stopping manufacturing or assembling of the product. For example, a bottle cap shortage could stop a bottling machine from operating.
- Performance loss: Any reduction in the efficiency or effectiveness of an asset when it is operational, but not performing at its optimal level. For example, an incorrect machine setting causing suboptimal performance.
- Utilisation loss: When an asset is not being used to its full potential or is underutilised. This type of loss happens when assets are available, but they are not running for reasons other than unavailability (such as being idle or not scheduled for use).
Utilisation loss highlights the gap between available time and actual productive time, and it directly impacts production throughput. If utilisation is selected as the time loss reason classification, an allowed duration should be populated - this states the allowed maximum duration for this time loss reason.
A time loss reason is the cause of the asset becoming unavailable. For example, time loss reasons in the Mechanical Failure time loss type can include:
- seized bearing
- worn bushes
- oil leak.
Different time loss grouping mechanisms are used in On Key. Refer to Time Loss Categories and Time Loss Types.
Also refer to Capacity Loss Reasons and Quality Loss Reasons for more information.