AUTOMATIC GREASING SYSTEM FOR CONSTRUCTION MACHINES AND ABNORMALITY DETECTING METHOD THEREFOR

摘要

An automatic greasing system for a pin-connected part and a bearing for a swingable shaft of a work machine of a construction machine, especially, a hydraulic excavating machine, having many parts to be greased at short grease supply intervals. When an operation time of the part to be greased, such as a pin-connected portion and a bearing for a swingable shaft of the work machine, or a total of the operation time and short non-operation time regarded as an operation time reaches a predetermined greasing interval time, greasing is automatically carried out and automatically stopped upon completion thereof. This enables the labor saving in greasing which otherwise takes an operator a great number of manhours, and also prevents the outflow of excessive grease from each part of the machine to be greased from soiling the surroundings of an excavating machine.