Ask the mechanic how to change steering gear booster oil for Dongfeng Jiayun truck.

1. Open the directional oil cover. Jack up the vehicle, remove the directional oil pipe and drain the oil.

2. Get on the bus and turn the steering wheel left and right. Please note that the vehicle has not started. After draining oil, install directional tubing.

3. Fill directional oil to the standard scale. Get on the bus and start, turn the steering wheel left and right. Check whether the oil quantity has changed, just cover it.