How to deal with the strange noise in the gear drive of mining battery locomotive

Mining battery motor car gear transmission noise, may be caused by the following reasons:
1. the gear cover fixing bolt is loose, vibration out sound, in serious cases the bolt is lost and the gear cover falls down.
2. The gear cover is skewed and the gear or wheel pair is rubbing.
3. The gears are worn out beyond the limit or have teeth.
4. The traction motor and the sliding bearing of the wheel pair are worn out beyond the limit, so that the gear teeth do not fit well.
For the above problems, it is necessary to deal with them accordingly. For example, check the tightening of the fixed bolts of the gear cover, and tighten them in time; check whether the gear cover is skewed, and adjust it in time; check the wear of the gears, and replace or repair them; check the wear of the sliding bearings of the traction motor and the wheel pair, and replace or repair them.
These are the causes and treatment methods for the gear transmission problem of mining battery motor car.