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| | Practicing Oil Analysis Magazine (Site not responding. Last check: 2007-10-29) |
 | | At the same time, the mine’s reliability team successfully extended the average oil drain intervals on the differentials and final drives from 2,000 hours to 6,000 hours and set a goal of 10,000 hours. |
 | | In addition to the reduction in rebuild costs and increase in oil drain intervals, the mine is enjoying a much longer duration between differential and final drive rebuilds; from an average of 8,000 hours in 2001 to an average of 16,000 hours today, with several rebuilds extending beyond 17,000 hours. |
 | | While the right rear final drive plugs did have some wear debris on them at the same inspection intervals (Figures 4-2, 4-4 and 4-6), the debris consisted of fines with a few small flakes and no chunks. |
| www.practicingoilanalysis.com /article_detail.asp?articleid=522 (2360 words) |
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