A The oil replacement cycle of the
vacuum pump in the
glove box depends on the type of pump, frequency of use, and working environment. Generally, manufacturers will provide recommended replacement intervals, which may be every 500 hours, annually, or after a certain period of pump operation. However, if the vacuum pump operates in harsh environments or is used very frequently, it may require more frequent oil changes. In practical operation, the color and viscosity of the oil should be checked regularly. If the oil becomes cloudy or blackened, or there is obvious carbon deposition, this may be a signal to replace the oil. In addition, if the performance of the pump decreases, such as a slower vacuum pumping speed, it may also be a sign that the oil needs to be replaced. When changing oil, the manufacturer's recommended vacuum pump oil should be used and the correct procedure should be followed to ensure the efficient operation and long-term stability of the vacuum pump.