Fortunately, the main illumination has become moderate after the exaggerated overuse of the rated generutor and the cars are accelerating with less tolerance and deliberate vibration.

By analysing varied factor and action force of the coke-handspike, this paper pointed the main factor and put forward opinion of reducing the level tolerance in order to reduce vibration.

Then peak index, kurtosis index, impulsion index and tolerance index of the vibration signal are calculated. These parameters represent the characteristic of failures.