PROTECTION FROM MACHINERY HAZARDS
MACHINERY GUARDS
Fixed Guards
Rigidly and permanently attached to the machine and covering the dangerous parts. Held in place by bolts, sockets headed screws or other devices requiring a hand tool to undo them.
Interlocked Guard
Device or means attached to a guard which, when the guard is moved from the safe position, stops the machine, it can be mechanical, electrical pneumatic or hydraulic, or a combination of these.
The interlocked device must be such that it cannot be manipulated when the guard is open to allow the machine to start.
If the machine takes a long time to stop, the interlock system should incorporate a time delay to prevent the guard from being opened before machine movement ceases.
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