Traktor tangan tembesi merupakan alat bantu dibidang pertanian yang digunakan untuk menggemburkan tanah yang digerakan oleh motor bakar gasoline dengan daya motor penggerak 6,5 Hp. Dari hasil pengujian desain rev_00 ditemukan adanya masalah, yaitu traktor sulit bergerak dan saat pisau berputar kemudian diberi beban pisau berhenti berputar. Penelitian ini bertujuan memperbaiki desain traktor tangan “Tembesi” yang di fokuskan untuk menurunkan jumlah putaran pisau guna meningkatkan nilai momen dan perbaikan pada bagian roda traktor.Dari hasil modifikasi desain, jumlah putaran pisau dimodifikasi dari 1333 rpm menjadi 450 rpm. Dari nilai momen rencana sebesar 6.925 kg.mm, gaya yang dihasilkan oleh pisau traktor tangan tembesi sebesar 378,786 Newton. Modifikasi roda dilakukan dengan menggunakan roda ban karet berdiameter 12 inchi (304,8 mm).
"Tembesi" hand tractor is a tool in the field of agriculture that is used to loosen the soil that is driven by gasoline fuel motor with a driving motor power of 6.5 Hp. From the results of the previous design testing (Rev_00) found a problem, where the tractor is difficult to move and when the rotating blade is then given a load the blade stops rotating. This study aims to improve the design of the "Tembesi" hand tractor which is focused on reducing the number of blade turns to increase the moment value and repair the part of the tractor wheel.From the design modification results, the blade rotation speed is modified from 1333 rpm to 450 rpm. From the plan moment value 6,925 kg.mm, the force produced by the "Tembesi" hand tractor blade is 387,79 Newton. Wheel modification is carried out using a 12-inch diameter (304.8 mm) rubber tire wheel.
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