Abstract: A method and apparatus for controlling the amount of lubricant dispensed in a railway lubricating system wherein a test cycle is effected during which lubricant is dispensed in a test amount to detect the influence of lubricant viscosity on the system, and wherein further dispensing cycles are effected to sequentially dispense an accurate and desired amount of lubricant in conformity with the detected influence of lubricant viscosity.

Abstract: A railway track lubricating apparatus which includes a multiplicity of applicators positioned next to a rail to be lubricated, a lubricant-containing supply tank, a lubricant pump having a gear drive element and a gear pump element located in the supply tank, a lubricant delivery system connected between the gear pump element and the various applicators, an actuator element in the form of a piston pump located on the side of the rail, and a hydraulic fluid recirculation system connected between the actuator element and the gear drive element, the recirculation system including a storage receptacle located inside the supply tank.