CFM56 - 5 b engine lubricating oil filter component installation and maintenance

CFM56 - 5 b engine lubricating oil filter component installation and maintenance tips - 2019 10 - 30 Cui Xueling Chen yong Maintenance technical support) Phenomenon and history in the installation of the engine lubrication oil filter components, need to operate strictly according to AMM procedures, otherwise may cause the leakage of engine lubricating oil in use process, resulting in serious consequences. Principle 1, lubricating oil filter filter components ( PN: QA06647ISS4 or CA00077A, see below picture 20) Under the surface of a cylindrical pin, is fixed filter, prevent its rotation. 2, the filter lid ( PN:337- 078 - 904 - 0, see picture below 40) Internal overlapping in the shape of a reinforced rib. 3, filter cup bottom drain plug ( PN:337- 079 - 904 - 0, see picture below 60) And oil filter cartridge by threaded connection together. If at the time of assembly, the filter on the top of pin to filter on the lid of the strengthening rib axis, in the process of tighten the filter lid will pin the top bad, thus makes the pin height shorter, pin can't block by rib, oil filter cartridge will turn, is likely to drive below the filter bowl drain plug together turn loose, can cause oil leakage. Troubleshooting tips when installing a filter element, AMM TASK - 79 21 - 10 - 920 - IN 002, Remove and Discard Supply Filter for THE relative position OF THE oil Filter element and Filter lid have a special WARNING and WARNING to remind: WARNING: MAKE SURE THAT THE Filter PIN IS CORRECTLY LOCATED BETWEEN TWO INNER RIBS OF THE COVER, and NOT IN THE AXIS OF TAPPED HOLES OF THE COVER. 不正确的安装可能会导致发动机操作期间重要的石油泄漏可能IFSD和引擎故障。 Warning: oil filter pin is located inside the filter lid when confirm the installation position between two reinforced rib, rib can not discharge hole pressure in the filter lid axis. Incorrect installation may lead to engine serious leakage of lubricating oil in use process, cause air parking and engine failure. 警告:不要打开盖子防止损坏过滤器。 Warning: do not rotate filter lid to prevent the damage of the oil filter. Conclusion the cause of the problem ( MCC） Need to strengthen AMM TASK - 79 21 - 10 - 920 - 002, Remove and Discard the Filter's manual named 'Supply' understanding and construction of the training. Failure parts: PN: QA06647ISS4 or CA00077A