ATA29章-飞机液压系统-液压油滤和EDP更换指南
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman">ATA29</FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt"><SPAN lang=EN-US style="mso-fareast-font-family: 'Times New Roman'"><SPAN style="mso-list: Ignore"><FONT face="Times New Roman">1.<SPAN style="FONT: 7pt 'Times New Roman'"> </SPAN></FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">液压油滤的检查更换：</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman">1.1</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">液压系统油滤分高压油滤和低压油滤，外观上很直观的是高压的一般是较小的油滤安装壳体，低压回油滤一般是较大的。</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman">1.2</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">每个油滤安装壳体上都有压差指示器，如果红色指示销弹出，说明油滤较脏，液压油内有磨损的金属屑或者异物，从而使液压油从压差指示器旁通使指示销弹出。这时候就要更换油滤，需要时还要提取液压油样进行化验。</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman">1.3</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有一次某架飞机绿系统故障，</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">EDP</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">无输出压力，检查</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">EDP</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的壳体回油滤指示销弹出，取出油滤发现大量金属屑，拆下</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">EDP</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">发现与附件齿轮箱相连的轴已打断。这是一个比较典型的通过油滤检查进一步排故的例子。</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman">2.EDP</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">更换：</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman">2.1EDP</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">通过与</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">N2</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">轴连接获得动力建立液压源；</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman">2.2</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">更换</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">EDP</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">出过几次问题，主要是泵本体上的几根大油管安装时损坏螺纹。有一次，某</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">319</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">飞机更换</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">EDP</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，安装回油大软管时软管端接头内螺纹由于工作者没有手带好就用工具造成损坏，因此只有更换该回油软管，该软管的上端是连接一根刚性的不锈钢管，拆这根软管时由于挠性较大，可能没有将上端管接头固定好就直接用扳手拧下端的六角接头，又导致了与软管相连的上部刚性管螺纹咬坏！无奈只有连同上端刚性管一起更换，重庆无件，成都基地送件，造成航班延误和航材损耗。</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman">2.3</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">另一个关键点是将</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">EDP</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">固定在附件齿轮箱上的四根长螺栓的安装，由于周围附件较多，安装上部两根螺栓时用手难以带上螺纹，而禁止用棘轮扳手、加长杆和套筒直接拧，这时有个小经验就是用手持加长杆一端，另一端安上套筒去带螺栓，用手的力量去带上几圈螺纹，带顺后再用棘轮扳手去拧到位。这样就可以避免粗暴施工可能导致的螺纹和内螺纹咬坏。</SPAN></P>
回复 1# 航空 的帖子
辛苦辛苦，学习学习
页:
[1]