The product comes with two large bottles of oil. When refilling, add approximately one and a half bottles until the oil level reaches the midpoint on the sight glass. Please use vacuum pump lubricating oil with a viscosity grade of 68 or 100.
Typically, the oil should be changed approximately every three months. If used frequently, monitor the oil level and top up if it falls below the midpoint. Should the oil become visibly contaminated, replace it immediately.
By vevor
