The V5W lubricator is a compact, motor-driven gear pump. Controlled output is adjustable to meet medium and large machinery needs. The fully automatic lubricator is preset for best operation. Discharge volume may be adjusted by turning the bypass valve counter-clockwise to reduce the pressure and thus reduce the amount of oil, or by turning the valve clockwise to increase pressure and oil flow. For use with Single Line Resistance (SLR) systems only.