注塑机安全标语翻译求助

第一个：caution
steep drop
第二个：warning
keep hands clear
第三个：caution
crushing point
Do not operate machine without cover inplace.
Do not reach inner side of cover when operating machine.
第四个：Danger
Always be sure to turn off the power supply before placing your body between the mold platens.
Place all selector switches nuertal position
第五个：SAFETY INSTRUCTIONS
1、Stand clear of screw drawing out area when dis-assembling nozzle or drawing out screw.
2、Retract screw to relieve excess pressure, then air-cool screw cylinder before overhaul.
3、Wear face, hand and arm protectors when inspecting and cleaning nozzle, hopper and vent port.
4、Moulded products may remain hot, wear hand protectors to avoid burn.
第五个：Warning
Do not operate with hopper removed or put hands or feet into opening.
不知道上面这些标语怎么翻译才比较准确，请各位英语爱好者帮忙译一下。TKS.