C4.4 (Mech) Industrial Engine Caterpillar


Glow Plugs - Test

Usage:

C4.4 2L2

预热塞导通性检查

下述测试用于检查预热塞的导通性。

  1. 断开电源和母线。

  1. 使用适当的数字万用表检查导通性(电阻)。打开数字万用表的声音信号。

  1. 将一支表笔放在预热塞接头上,另一支表笔放在适当的接地上。数字万用表应发出声响。如果不导通,则需更换预热塞。

  1. 检查所有预热塞的导通性。

检查预热塞的工作情况

下述测试用于检查预热塞的工作情况。

  1. 断开电源和母线。

  1. 只连接一个预热塞的电源。

  1. 将适当的电流表放在电源线上。

  1. 将适当的数字万用表接至预热塞端子上及适当的接地上。

  1. 将开关转到接通 (ON)位置,启用预热塞。

    Table 1
    12 伏系统    
    Amp 接头     时间 (s)    
    30     初始    
    21     4    
    14     8    
    10     20    
    9     60    

    Table 2
    24 伏系统    
    Amp 接头     时间 (s)    
    12     初始    
    8.5     8    
    7     20    
    6     60    

  1. 检查所有预热塞的读数。

  1. 如果万用表上没有读数,检查电气连接情况。如果万用表上的读数偏低,更换预热塞。如果仍没有读数,更换预热塞。

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