How to check the whole machine before running

Before use, check the following parts: whether the gear oil in the reducer is sufficient, whether the motor belt is tight, whether the fastening bolts of each part of the extrusion molding machine are fastened, whether there is collision between each part, pull the belt pulley by hand to make the connecting rod reciprocate once, no abnormal phenomenon, the electrical power supply is not less than 380V, the single wire diameter of the power supply is not less than 4 square millimeters, whether the line switch works normally, and whether the oil nozzle is fully filled. All completed can be used!