電動平車正常行駛時換檔困難

　　電動平車正常行駛時換檔困難

　　一、離合(he)器踏板已將制動器開關閥頂開，而起步(bu)擋(dang)仍然難(nan)

　　這種情況則(ze)說明(ming)離合器制(zhi)(zhi)(zhi)動(dong)(dong)系(xi)統有故(gu)障(zhang)，此時應首先檢(jian)查制(zhi)(zhi)(zhi)動(dong)(dong)氣(qi)(qi)路，將制(zhi)(zhi)(zhi)動(dong)(dong)閥至富勒變速箱左(zuo)側下方接頭松開(kai)，踏下離合器踏板到頂(ding)開(kai)離合器制(zhi)(zhi)(zhi)動(dong)(dong)閥的(de)位置(zhi)，觀察氣(qi)(qi)管接頭。如(ru)(ru)掃氣(qi)(qi)不暢，說明(ming)制(zhi)(zhi)(zhi)動(dong)(dong)器開(kai)關(guan)閥故(gu)障(zhang)應予拆(chai)檢(jian)或(huo)更(geng)換(huan)(huan);如(ru)(ru)果(guo)排氣(qi)(qi)通(tong)暢，需(xu)(xu)拆(chai)檢(jian)離合器制(zhi)(zhi)(zhi)動(dong)(dong)氣(qi)(qi)缸，觀察制(zhi)(zhi)(zhi)動(dong)(dong)氣(qi)(qi)缸密封圈是(shi)否(fou)磨損漏氣(qi)(qi)、活(huo)塞是(shi)否(fou)移動(dong)(dong)自(zi)如(ru)(ru)沒(mei)有發卡的(de)現象(xiang);如(ru)(ru)果(guo)漏氣(qi)(qi)則(ze)需(xu)(xu)更(geng)換(huan)(huan)“O”型圈。檢(jian)查活(huo)塞制(zhi)(zhi)(zhi)動(dong)(dong)圓弧凹面是(shi)否(fou)磨損嚴重(zhong)，如(ru)(ru)果(guo)磨損嚴重(zhong)需(xu)(xu)更(geng)換(huan)(huan)制(zhi)(zhi)(zhi)動(dong)(dong)缸活(huo)塞。

　　二、正常行駛時換檔(dang)困難

　　這種情況(kuang)應首先檢查是(shi)否是(shi)遠距離操(cao)(cao)縱換擋(dang)桿系的(de)(de)故障。如果(guo)換擋(dang)桿系調(diao)整(zheng)(zheng)不當或是(shi)連接頭漏氣都(dou)會產生增大換擋(dang)阻力(li)和換擋(dang)困難的(de)(de)故障。特(te)別是(shi)某些擋(dang)位掛擋(dang)困難，可調(diao)整(zheng)(zheng)變速箱(xiang)上換擋(dang)拐臂支承調(diao)整(zheng)(zheng)螺桿，以(yi)使操(cao)(cao)縱桿系處于合適的(de)(de)位置。

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