Downtime
Due to dynamic loads, bolted joints have a tendency to loosen. Downtime is significantly reduced because MJTs are able to easily achieve the large clamping forces required to prevent bolted components from vibrating loose. Therefore, less time is spent tightening joints repeatedly and fixing problems caused by loose joints. MJTs also reduce the likelihood the bolted joint will fail, which reduces downtime caused by needing to replace damaged components.
Read more about this topic: Multi-jackbolt Tensioner