Denison vane pump in addition to the points of management to prevent dry and overload, prevent inhaled air and suction vacuum degree, also note: pump to change, is also changing the inhale row direction of steering vane pump has a regulation, not allowed to reverse.Because the rotor blades have a tilt, the blades have chamfering, blade bottoms and oil drain cavities, the throttle groove and suction and drain on the oil plate are designed according to the established steering.Small pump to 0.015 ~ 0.03 mm medium pump - 0.02 ~ 0.045 mm temperature and viscosity of the oil should not be commonly more than 55 ℃, the viscosity requirements between 17 ~ 37 was/s.The viscosity is too large for oil absorption;The viscosity is too small to leak serious.Reversible vane pumps must be specially designed.Vane pump assembly and oil pan with the stator with dowel locating correctly, vane and rotor, oil distribution plate are not allowed to put wrong, the stator inner surface suction area part of the most easy to wear and tear, can install the flip when necessary, to make the original suction area into the discharge area and continue to use.