Here are some sample legends for Warning Signs.

Keep Guards In Place
This Machine Is Automatically Controlled
Noise Area Use Proper Ear Protection
This Unit May Start Automatically At Any Time
Machine Down For Maintenance Do Not Operate
Use Static Grounding Devises
Do Not Touch Switch When Locked Out
Electrical Panel
Low Overhead Clearance
High Voltage Electrical Equipment
Do Not Enter When Machinery Is In Motion
Only Authorized Personnel May Repair This Equipment
Lock Out Switches Before Working On Equipment
Electrical Hazard
Men Working Above
Chemical Storage Area
Hot
Chock Wheels Before Loading And Unloading

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