Trencher operator seating positions. A simple ergonomic assessment of two styles of layout.
A comparison of two different styles of operator position in a trencher were compared using biomechanical principles and a field survey. A major postural difference between the two styles is the amount of time spent by the operators looking to the rear of their seated position. This was confirmed by a simple experiment. The style of position used in the skid steer type of trencher, facing the working tool, was found to be significantly better than the traditional fore-aft tractor style configuration.
Brennan
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RB
Occupational Health and Safety Officer, Melbourne College of Advanced Education, Victoria, Australia.