Before you received goods and checking the spare parts condition if all are good.
1단계: 먼저 상부 및 하부 금속판에 플라스틱 기어 스트립을 설치합니다, 그리고 버튼을 손으로 누릅니다..
2단계: Then fix the two square pillars with screws (washers are required under each screw)
Step3: Then install the fixed side plate, and fix it with screws and washers on both sides (note: the metal of the fixed side plate should be aligned with one side of the plastic gear strip)
Step4: Install the active side plate and after that fixed another two square pillars with screws.(washers are required under each screw)
Step5: Use both hands to push the movable side plate upwards until the two PINS catch the upper and lower metal plates
Step6: Finally, install the metal gear lever