LG6250E DEUTZ engine can not automatically turn off the paper

A Shandong Lingong crawler excavator LG6250E (standard BF6M1013 DEUTZ engine), the machine in the ignition switch to zero when the engine cannot automatic flameout.

[analysis of reasons]:

1 power supply, flameout solenoid valve is not completely cut off or ignition switch card;

2, flameout solenoid valve damage or strip deformation;

3, single pump or issuing engine governor rack card lag deformation.

Troubleshooting method]:

1, check the startup circuit, the power is normal and ignition switch card hysteresis phenomenon;

2, after the field test machine, the engine does not drop speed phenomenon, and manually flameout normal, which proves that each cylinder monomer pump no stuck phenomenon;

3, the engine flameout solenoid valve and remove the electricity checking, the movement and the new valve shifting angle is not the same, and in the case of electricity action instead, replace the new flameout solenoid valve and electricity use, is still unable to automatically turn off the engine;

4, pull the engine stop pull plate, feel rack elasticity is not enough, which is determined as engine governor rack hairpin or deformation

5, the replacement of the engine fault disappear governor rack associated components,.