776D, 777D and 777D HAA Off-Highway Truck/Tractors Air System and Brakes Caterpillar


Parking Brake Valve (Reset) - Test

Usage:

776D AFS

  • 确保发动机已关闭。


    图 1g00887437
    777D 系列非公路用卡车的停车制动器位置


    图 2g06096604
    777E 系列非公路用卡车上的"停车制动器"集成在换档杆上

  • "停车制动器"指示灯 (1)。


    图 3g00719272
    777D 系列非公路用卡车的"气罐"排放口位置


    图 4g06096631
    777E 系列非公路用卡车上"辅助气罐"排放口的位置

  • "辅助气罐"的排放阀 (2)。 排放阀 (2) 位于驾驶室右侧。

  • 打开排放阀 (2) 以允许排放空气。


    图 5g00887436
    777D 系列非公路用卡车上的"停车制动器复位阀"位置


    图 6g06096542
    777E 系列非公路用卡车上的"停车制动器复位阀"位置

  • 观察"停车制动器复位阀" (3)。

  • 当空气压力降到 414 kPa (60 psi) 以下时,"停车制动器复位阀" (3) 上的旋钮应弹出。

  • 如果"停车制动器复位阀" (3) 没有弹出,不要起动或运行卡车。

  • 进行必要的修理,再重新进行测试。
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