Before work, check the appearance, check whether the outside of the machine is cracked, deformed or damaged, check whether the bolts and nuts of each connection part are loose. At the same time, check the level of fuel, oil, coolant and hydraulic oil to ensure that they are in the normal range. Also look at the blade of the bulldozer to ensure that it is securely connected and the cutting edge is not excessively worn.

During the work, pay attention to observe the instrument and indicator light, monitor the oil temperature, water temperature, oil pressure and other indicators through the instrument panel, observe the indicator light to find the fault signal in time. And pay attention to the working state of the machine, listen to the engine and transmission system whether there is abnormal noise, feel the operation of the machine is smooth.

After the end of the work, to clean up the bulldozer, brush and other tools to remove the fuselage of dirt, dust and other debris, focus on cleaning the radiator and the engine surface to avoid overheating. Also check the wear of easily worn parts, such as tracks, blades, etc., to find problems in time for replacement or repair.