JAC HFC4DA1-2C - Page 177

Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
178
Fault Tree:
关闭点火开关并检查喷油器接插件
接插件问题 做必要的修理
曲轴位置传感器间隙问题？
N
Y
检查曲轴位置传感器间隙
检查减震皮带轮与传感器
Y
重新调整曲轴减震皮带轮安装，
还不行，更换减震皮带轮并进行
齿讯学习
皮带轮与传感器是否干涉
调整曲轴位置传感器间隙
（0.6~0.7mm）
N
Y
检查曲轴位置传感器
N
曲轴位置传感器问题
Y
更换曲轴位置传感器
联系技术支持
N
Get the Technical Support.
Repair accordingly.
Connector fault
Turn off ignition switch and check fuel injector connectors.
Check crankshaft position sensor clearance.
Are faults in crankshaft position sensor clearance?
Check damping belt pulley and sensor.
Check belt pulley and sensor for interference.
Check crankshaft position sensor.
Faults are in crankshaft position sensor.
Adjust clearance of crankshaft position sensor
(0.6mm~0.7mm)
Readjust installation of crankshaft damping bel
t
pulley. If faults occur again, replace damping
belt pulley and carry out gear message learning
Replace crankshaft position sensor.