Machine of decelerate of planet of fever and leak. Planetary reducer in order to improve the efficiency, generally adopt nonferrous metal worm gear, worm, the use of the hard steel, because it is sliding friction transmission, in the process of operation, can produce high quantity of heat, make the machine of decelerate of planet of thermal expansion differences between the parts and seal clearance to the mating surface, and the oil due to the rise of temperature is thinning, easy to cause leakage. There are four main reasons, one is the material collocation is reasonable, the second is on the surface of the mesh friction surface quality, the third is the choice of lubricating oil, add the amount is correct, four is the assembly quality and use of the environment.The selection of lubricating oil and additives. General use 220 # gear oil, in machine of decelerate of planet of some of the heavier load, frequent restart, use environment poor planetary reducer, planetary reducer, when stop, gear oil is still attached to the surface of gear, form protective membrane to prevent heavy load, low speed, high torque and contact between the metal and metal when it is started. Additive also contains sealing ring regulator and leakage resistance agent, keep seal soft and elastic, effectively reduce oil leakage phenomenon.Planetary reducer should be firmly installed in a stable level or the base, the base of row should be able to rule out the oil tank and the cooling air circulation flow chang. Based on unreliable, running can cause vibration and noise, and prompted bearing and gear damage. When the connection with protrusions or transmission gear, chain wheel drive, the installation of protective device should be taken into account, the output shaft under high radial load, should choose enhanced.