Inspect the support structure and control box seals for moisture ingress. Safety Protocols
The maintenance manual outlines specific care requirements to achieve a service life of over or 10,000 mechanical operations : LTB 72.5-170D1/B Circuit-Breaker Manual | PDF - Scribd ltb 72.5-170d1 b manual
This report contains technical data whose export and disclosure is restricted by the International Traffic in Arms Regulations (ITAR) or the Export Administration Regulations (EAR). Dissemination is limited to U.S. Government agencies and their contractors and to qualified U.S. citizens for evaluation purposes only. Any other dissemination or disclosure requires prior approval from the releasing authority. Inspect the support structure and control box seals
When maintained according to the manual (periodic gas density checks and mechanism lubrication), these breakers often exceed a 30-year service life. ltb 72.5-170d1 b manual