0308 – Practical training for skill contestants 2 – Common problems and solutions in turnout maintenance -3- Loose parts, failure and defects
01Causes Failure of turnout components is an important issue that causes turnout function failure and affects driving safety. Improper daily maintenance and overhaul are the main reasons for the failure of turnout components, which are as follows: 1.1 Poor daily maintenance The tamping is not thorough, resulting in dark pits and hanging plates in the turnout components, aggravating the impact and vibration of the turnout, causing the parts to loosen and fail. The main manifestations are: The bolt sleeve of the iron pad connecting the concrete sleeper fails The flat washer between the iron pad and the bolt is separated The gap between the turnout switch rail and the switch does not meet the regulations The gap between the turnout guardrail and the switch does not meet the regulations The spacing between the turnout rail sleepers does not meet the regulations The daily maintenance inspection is not meticulous, and missed inspections and repairs lead to parts failure. The main manifestati...