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汽車點火系低壓電路故障檢修方法解析

來源:http://www.melbimprov.com發布時間:2021-02-11 16:51:54

1、按喇叭響,開前照燈也亮。有螺絲刀或導線在點火線圈“-”接線柱上試火,如無火,則為點火線圈低壓接柱至電流表之間斷路。按點火線圈“開關”->點火線圈“開關-電源”接線柱->點火開關->電流表的順序試火,根據有火與無火來診斷斷路故障所在部位。
    1.Soundthehornandturnontheheadlamp.Ifthereisascrewdriverorawireonthe"-terminaloftheignitioncoilforfiretest,ifthereisnofire,itisanopencircuitbetweenthelowvoltageterminaloftheignitioncoilandtheammeter.Testthefireaccordingtothesequenceofignitioncoil"switch"->ignitioncoil"switchpowersupply"terminal"->ignitionswitch"->ammeter,anddiagnosethepositionofopencircuitfaultaccordingtowhetherthereisfireornot.
    若是接線柱與導線連接不牢或接觸不良,應清潔接線柱,緊固固定螺母;若是某段導線斷路,就更換該段導線,所更換的導線應與原導線規格相同。
    Iftheconnectionbetweentheterminalandthewireisnotfirmorthecontactispoor,theterminalshouldbecleanedandthefixednutshouldbetightened;ifasectionofwireisopencircuit,thesectionofwireshouldbereplaced,andthereplacedwireshouldbethesameastheoriginalwirespecification.
    濟南奔馳汽車維修哪家好
    2、按喇叭不響,開前照燈不亮。用導線在起動機接線柱試火,如有火,則故障為起動機接線柱至電流表之間線路斷路;如無火,則故障是蓄電池電量不足或其線路故障。蓄電池電量不足,應充電;線路斷路,應重新接通。   2.Thehorndoesn'tsoundandtheheadlampdoesn'twork.Usewiretotestfireonstarterterminal.Ifthereisfire,thefaultisopencircuitbetweenstarterterminalandammeter.Ifthereisnofire,thefaultisinsufficientbatteryoritslinefault.Ifthebatteryisinsufficient,itshouldbecharged;ifthecircuitisopen,itshouldbereconnected.
    3、用螺絲刀在點火線圈“-”接線柱上試火,如有火,再在分電器活動觸點臂與底板間試火。如果有火,則為觸點故障(如觸點燒蝕、太臟、不能閉合等),可用“白金砂條”修磨觸點和調整觸點間隙等方法來排除故障。如無火,轉入下一步。
    3.Useascrewdrivertotestthefireonthe"-"terminaloftheignitioncoil.Ifthereisafire,thentestthefirebetweenthemovablecontactarmofthedistributorandthebaseplate.Ifthereisfire,itiscontactfailure(suchascontactablation,toodirty,unabletoclose,etc.),whichcanbeeliminatedby"platinumsandbar"grindingcontactandadjustingcontactclearance.Ifthereisnofire,gotothenextstep.
    4、在分電器絕緣接柱與分電器殼處試火,如無火,則為分電器絕緣接柱至點火線圈“-”接柱間的導線斷路故障;如果有火,則為絕緣支架至絕緣接柱間導線斷路故障。若系接線柱與導線接觸不良而斷電,應清潔和緊固接接線柱與導線頭;若是某段導線斷路,用相同規格導線更換該段導線即可。
    4.Ifthereisnofire,itistheopencircuitfaultofthewirebetweentheinsulatedconnectionpostofthedistributorandthe"-"connectionpostoftheignitioncoil;ifthereisfire,itistheopencircuitfaultofthewirebetweentheinsulatedsupportandtheinsulatedconnectionpost.Ifthepoweriscutoffduetopoorcontactbetweentheterminalandtheconductor,theterminalandtheconductorheadshallbecleanedandfastened;ifacertainsectionofconductorisopen,theconductorofthesamespecificationcanbereplaced.

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