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The Solution Rating System
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With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.
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At 1330 hours we lost control power to the line 4 build line offload elevator. Maintenance was called to the line and began troubleshooting the offload elevator looking at the data comminication wires and looking for wires that might be pinched which was causing a dead short to the main power panel. The short was causing a fuse to blow in the main control cabinet. The fuse was traced back to the main control circuit on the line, which also encompases the estop commands of the line. The troubleshooting began with a top down approach in troubleshooting and the estop cable control box at the offload elevator was inspected first. Once the estop control box cover was removed it was noted that there was a possible loose wire found. Once all the wires were inspected the fuse was replaced and the line once again began to function. Again, this time at 1510 hours we lost the control power to build line 4. The first observation was that the unload elevator was once again not functioning. Upon further investigation we once again examined the fuse block and found the same fuse blown. The Maintenance crew also found that the load elevator was not functioning so troublshooting began with the wiring in the elevator. The short was narrowed down to the -------cable which runs the entire length of the build line. It was at this time a process of getting to each "Y" joint in the cable and unattaching the cable to determine the dead shorted section. In order to get to the wireway the cable is housed in, the side safety guards had to be removed from the build line and the wireway covers had to be removed. Once the section of wire was removed containing the dead short, the Maintenance crew could then troubleshoot a much smaller group of control wires in a more centralized location. It was during this time period that a wire was found to be pinched between the side of the build line and the operator platforms. A meter was placed in the control cabinet and the wire was moved back and forth. During the movement, the meter in the control cabinet was able to detect the changed condition from a short condition to a non short condition. The wire was replaced and the line was brought back up at 1745 hours |
