To check whether the connection is strong everywhere, set with bolts and nuts that are tightened, add enough lubricating oil in the distribution cabinet, carefully power on and then test drive, first conduct a detailed investigation and investigation, whether there is vibration, noise, oil window oil Whether the activities of each part are harmonious, the normal rear hand is equipped with a settling mold. When setting up with a settling mold, there is a need to block the power supply and use skills to move and transport the motor belt or large gear.