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[摩托车] [转帖]摩托车电路部分故障的维修保养

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发表于 2006-12-20 18:20 | 显示全部楼层 |阅读模式
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;"><strong><font color="#0000ff" size="5">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 摩托车电路部分故障的维修保养</font></strong></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">在一般气温条件下(</span><chmetcnv wst="on" tcsc="0" numbertype="1" negative="True" hasspace="False" sourcevalue="5" unitname="℃"></chmetcnv><chmetcnv></chmetcnv><span lang="EN-US"><font face="Times New Roman">-5</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">℃</span><chmetcnv></chmetcnv><chmetcnv></chmetcnv><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">以上),摩托车发动机经</span><span lang="EN-US"><font face="Times New Roman">1~3</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">次启动而不能正常启动时,表明存在故障。其故障不外乎有两方面,即所谓油路或电路(这里不讨论由于曲轴箱、气缸漏气及压力不够、活塞环磨损及断裂等方面的原因)。油路故障容易查找,只要油路系统不堵塞、化油器工作正常、有燃油且品质符合规定,即可认为油路基本无故障。电路故障查找起来比较困难,而且发动机不能立即启动多数是电火电路故障造成的。下面介绍迅速准确查找电路故障点的步骤和方法。</span></font><font face="Times New Roman"><br/><font size="3">&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">先旋下火花塞,让火花塞的六角螺母靠近离气缸体约</span><span lang="EN-US"><font face="Times New Roman">5~</font><chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="8" unitname="毫米"></chmetcnv><chmetcnv></chmetcnv><font face="Times New Roman">8</font><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;"><span lang="EN-US">毫米</span></span><chmetcnv></chmetcnv><chmetcnv></chmetcnv><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">处,并让火花塞裙部正对着我们的视线,即我们的眼睛能看到火花塞中心电极内部的空间部分。</span></span></font><font face="Times New Roman"><br/><font size="3">&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;"><font size="3">此时启动发动机数次,可有下列四种情形:</font></span><font face="Times New Roman"><br/><font size="3">&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">.在火花塞与气缸体之间产生</span><span lang="EN-US"><font face="Times New Roman">5~8</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">毫米长的火花,并能听到放电声。同时火花塞中心电极与侧电极之间</span><span lang="EN-US"><font face="Times New Roman">0.7</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">毫米的间隙中也产生火花。此种情况说明高压点火电路是正常的。如发动机仍不能启动,则应检查点火提前角是否正确。若点火提前角正确,则说明高
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 楼主| 发表于 2006-12-20 18:21 | 显示全部楼层
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="EN-US"><font face="Times New Roman">1.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">摩托车电路的特点</span></font><font face="Times New Roman"><br/><font size="3">&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';"><font size="3">掌握摩托车电路故障的检查方法,首先要了解摩托车电路的结构特点:</font></span><font face="Times New Roman"><br/><font size="3">&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="EN-US"><font face="Times New Roman">a</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">)用电设备的各工作部分均与电源设备并联,开关则串联于二者之间。在开关的控制下,相应地各个用电设备可以互不干扰地停止或恢复工作。根据这一特点,在一般情况下,可以方便地单独检查某个用电设备是否正常工作。</span></font><font face="Times New Roman"><br/><font size="3">&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="EN-US"><font face="Times New Roman">b</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">)在用电设备与电源设备的连接中,均采取</span><span lang="EN-US"><font face="Times New Roman">“</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">单线制</span><span lang="EN-US"><font face="Times New Roman">”</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">,即并联连接的一端用导线连接(称火线),另一端则借助于摩托车的金属车体进行连接(称搭铁端或接地端)。根据电源设备(如蓄电池)搭铁端极性的不同,电气系统有正极搭铁与负极搭铁之分。</span></font><font face="Times New Roman"><br/><font size="3">&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="EN-US"><font face="Times New Roman">c</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">)低压电路中的连接导线均采用规定颜色的单色线或双色线。在直接连接的电路中通常采用相同颜色的导线,在间接连接的电路中则采用不同颜色的导线。根据这一特点,可以比较方便地查找电路连接的故障。</span></font><font face="Times New Roman"><br/><font size="3">&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="EN-US"><font face="Times New Roman">d</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">)在电路连接中广泛采用插接器,这在维护和检修时,可方便地断开或恢复连接。</span></font><font face="Times New Roman"><br/><font size="3">&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="EN-US"><font face="Times New Roman">2.</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">电气系统产生故障的原因</span></font><font face="Times New Roman"><br/><font size="3">&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="EN-US"><font face="Times New Roman">a</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">)电路断路。电路中的连接点接触不良、电流时通时断,是断路故障初始阶段的表现。</span></font><font face="Times New Roman"><br/><font size="3">&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="EN-US"><font face="Times New Roman">b</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'T
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发表于 2006-12-23 12:28 | 显示全部楼层
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