Ergonomic Modification of Hand Thresher To Reduce Workers Posture Risk
Yovita Wanda Saputri (a*), Guntarti Tatik Mulyati (b), Mohammad Maksum (b)
a) Department of Agro-industrial Technology, Faculty of Agriculture Technology, Universitas Gadjah Mada
Jl. Flora Bulaksumur No.1, Caturtunggal, Depok, Kabupaten Sleman, Indonesia
*yovitawanda[at]gmail.com
b) Department of Agro-industrial Technology, Faculty of Agriculture Technology, Universitas Gadjah Mada
Jl. Flora Bulaksumur No.1, Caturtunggal, Depok, Kabupaten Sleman, Indonesia
Abstract
Hand thresher is a threshing tool with the largest percentage of 49% used by rice harvesters in DIY. It has more difference starts from the shape, size, material and even the completeness of the facilities that affects the posture of thresher workers when using or when the transportation process of the tools. The purpose of this study is to transporting the hand thresher who is expected to reduce the risk of rice threshing workers, facilitate of transporting process, and then evaluate modification of hand thresher with physical workload from the workers and count the value of the modification. Modification was carried out using VA method, RULA tools, NBM tools, CVL and the function of each components of the tool. Posture assessment conducted using the RULA method showed a decrease from 7 to 6 for the removal process and 6 to 5 for threshing process. From VA method, the total value of new tools is 9⋅6×105 for the value of the new hand trainer tool. Some of the components added to the modification of hand thresher are fans, sockets, sieves, opening holes, wall coverings, entry holes, thresher cylinder covers, holes for carrying bamboo, wheels, and handlebars.
Keywords: Hand thresher, Modification, Value Analysis
Topic: Agricultural Engineering