1. Proper amount of lubricating oil is injected into the differential drive, and it is strictly prohibited to leak and add more, otherwise it will cause gear damage or oil leakage;
2. The refueling hole of the differential drive should be replaced with a normal exhaust bolt, and the exhaust should not be lost; otherwise, sealing failure will be caused by oil leakage, debris entering, oil splashing, and damage to the acceleration gear;
3. The case shall be cleaned once and the lubricating oil shall be changed when the new differential drive is in operation for three months or 500 km.
4. When there is abnormal sound in the differential drive during operation, first check the lubricating oil quantity and go to the designated maintenance point to find out the reason and replace the gear.
