Transcription of Chapter 9 Electrical System Maintenance - Maintenance ...
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Chapter 9 Electrical System Maintenance - Maintenance ...
Chapter 9 Electrical System Maintenance9-1 GeneralAll Electrical systems require regularly scheduled Maintenance in addition to non-scheduled Maintenance caused by unpredictable events such as storms, accidents, and equipment failure. The intent of periodic Maintenance is to keep the System operating correctly and effectively for the longest possible service lifetime. All Maintenance activities shall be documented in the Signal Maintenance Management System (SIMMS) for all equipment tracked in Maintenance activities are common to all systems, regardless of type. These activities should always be performed on the cycle applicable for the System . These activities are defined as follows:9-2 Wiring and Connection Maintenance Clean conductors, terminals, and connectors of all corrosion. Tighten terminals and connectors including breaker, transformer, and contactor connectors. Check the equipment grounding System , including conduit end bushing connections, bonds, equipment grounding conductors, enclosure grounding connections, and pole grounding connections.
• Clean gate surface. • Tighten all mechanical connections. • Lubricate shear pins, bull gear, and shaft. • Check transmission level. • Check collars. • Check brake. • Check heater. • Remove flash guards and inspect. Chapter 9 Electrical System Maintenance Page 9-2 WSDOT Maintenance Manual M 51-01.11 September 2020
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