NR NR/L3/SIG/SG0190 ISSUE 2 PDF

This standard covers all mechanical lever frames installed in Signal Boxes, Shunting Frames, Gate Boxes, and Ground Frames on Network Rail infrastructure.

This procedure applies to you if you are involved with the delivery or management of preventative or corrective maintenance or testing or overhaul of mechanical lever frames. Individual role/position responsibilities for this procedure are detailed in the RACI.

Purpose

This standard specifies the requirements for maintaining, testing, and overhauling mechanical lever frames to the required Network Rail standards and periodicity.