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Module One Basic knowledge of the fitter 1 Task One Safe awareness of the fitter 1 Task Two Basic theoretical knowledge 4 Task Three Common equipment and measuring tools for the fitter 17 Task Four Cognition of dimensional tolerance 26 Task Five Processing skills of simple parts 28 Questions for review 34 Module Two Parts processing operation 35 Task One Marking 35 Task Two Sawing 43 Task Three Filing 52 Task Four Hole machining 63 Task Five Thread machining 78 Questions for review 87 Module Three Simple mechanical assembly 88 Task One Assembly of fixed connection 88 Task Two Assembly of belt drive mechanism 100 Task Three Assembly of chain drive mechanism 104 Task Four Assembly of gear drive mechanism 108 Task Five Assembly of bearing 114 Questions for review 125 Module Four Testing and debugging of mechanical equipment 126 Task One Testing of assembly quality 126 Task Two Equipment installation and debugging 130 Questions for review 133 Model test of fitter elementary theory 134 Model test of fitter elementary theory (1) 134 Model test of fitter elementary theory (2) 137 Model test of fitter elementary theory (3) 140 Model test of fitter elementary practical operation 143 Model test of fitter elementary practical operation (1) 143 Model test of fitter elementary practical operation (2) 146 Model test of fitter elementary practical operation (3) 149 References 152