Machine Guarding Safety Training
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1. Moving machine parts can cause injuries such as:
Moving machine parts have the potential to cause severe workplace injuries, such as crushed fingers or hands, amputations, burns, blindness, or can even prove to be fatal. The proper safeguarding is essential for protecting workers from these otherwise preventable injuries.
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2. The purpose of a machine guard is to:
Machine guarding provides a means to protect humans from injury while working nearby or while operating equipment. It is often the first line of defense to protect operators from injury while working on or around industrial machinery during normal operations.
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3. Safety shields protect against:
Safety shields protect the operator from moving parts, flying debris, sparks, and other potential safety hazards.
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4. Machine danger points are:
Physical hazards associated with the operation of mechanical equipment and machinery that users must be protected from include pinch points, wrap points, shear points, crush points, pull-in points, and the potential for objects to be thrown from the equipment.
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5. As long as you make other provisions, it is not necessary to shut down a machine with missing or damaged guards.
Never use a machine without proper, working safeguards. If you notice missing or damaged guards, shut down machine immediately.
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6. Machine operators can add to their safety by:
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7. Poor machine guarding:
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8. A machine needs to be locked out when:
Any time a safeguard must be removed, and the machine service, the lockout procedure must be adhered to. The maintenance and repair crew must never fail to replace the guards before the job is considered finished and the machine released from lockout.
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9. If a machine operation throws off chips or sparks:
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10. Safety trip controls:
Safety trip controls commonly include pressure-sensitive body bars, when deactivate a machine whenever pressure is applied to the bar. This function stops the machine before an operator’s body can reach hazard areas, should that operator trip, lose balance, or otherwise be drawn into the machine.
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11. Operators should adjust any adjustable guards:
Adjustable guards, like fixed guards, are permanent, but they can be adjusted to allow the machine to handle different sizes of material. They must be manually adjusted and locked into place when the machine is set-up for the job. If improperly adjusted or locked, adjustable guards can fail to prevent contact with moving parts, causing serious or even fatal injury.
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12. A point of operation is:
The point of operation is where work is performed on the material, such as shaping, cutting, boring, drilling, etc.
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13. Electrical interlocks are often used in place of machine guarding to protect employees.
When you need to improve your machine safeguarding, interlock devices are used. The extra protection helps prevent operators from making unsafe or inappropriate maneuvers.
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14. You should re-check the position of adjustable guarding when the size or shape of the working material changes.
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15. Long hiar, loose clothing and jewelry may be worn around moving machinery as long as you keep these items away from the point of operation.
Hair longer than four inches, jewelry, and loose clothing can be drawn into machine parts such as suction devices, blowers, chains, belts and rotating devices. It can even be drawn into machines guarded with mesh. Therefore, hair must be securely fastened with a bandanna, hair net, soft cap or the like. Jewelry and loose clothing should not be worn.
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16. Damaged guards:
You should always report missing, damaged or inoperative guards. It is not safe to operate machinery without properly working guards. If a guard is damaged or becomes inoperative while you are working, shut the machine down, and have the guard inspected by a qualified person. The guard may need to be repaired or replaced before work can safely proceed. If unexpected machine start-up could cause injury, use the lockout/tagout program.
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17. Two major areas where mechanical hazards occur are Point of Operation and In-Running Nip Points.
Dangerous moving parts in three basic areas require safeguarding
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18. Machine operators can add to their safety by:
Before working on a machine, do the following tasks:
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19. Fixed guards:
Fixed guards are permanently attached to the machine or tool, don’t have any moving parts, and can’t be moved while the machine is in use. They’re most often used to enclose the point of operation, or other hazards that the operator doesn’t need to interact with, like fan blades or flywheels.
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20. Routine adjustments or lubrication that can be done without removing or bypassing a guard may be done without taking any extra precautions.
Routine adjustments or lubrication that can be done without removing or bypassing a guard may be done without taking any extra precautions. Ask your supervisor about extra precautions that need to be taken if routine or repeated adjustment, tool changes or other minor work requires that a guard be removed or bypassed.
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21. Interlocked guards:
Interlocking guards, also known as barrier guards, automatically shut off or disengage the power source when the guard is open or removed. These are particularly useful in situations where operators need to be able to open the guard or access the guarded parts of the machine, such as when clearing jams. These guards allow safe access to interior parts of the machine without requiring a total disassembly.
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22. Machine guards are used to:
The fundamental purpose of machine guarding is to reduce the risk of injury to the machine's operator or workers.
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23. Adjustable guards provide a barrier which may be adjusted to facilitate a variety of production operations.
Some advantages that adjustable guards provide that fixed and interlocked guards don’t, is that it provides a barrier that may be adjusted to facilitate a variety of production operations. The guard can be created for many specific functions and can be adjusted based upon the size of the stock.
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24. A major cause of machine accidents are:
The most common causes of Machine Guarding incidents are:
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25. Any machine part, function or process which may cause injury must be safeguarded.
Machine guards are your first line of defense against injuries caused by machine operation. Each machine must have adequate safeguards to protect operators and other employees in the immediate work area from hazards created by ingoing nip points, rotating parts, sparks and flying debris.
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26. Did you watch the YouTube video titled "Machine Guarding" prior to taking this quiz?
You must view the YouTube video titled "Machine Guarding" prior to receiving your certification (even if you received a passing score on this quiz).
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