machine guarding etool _ general requirements
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General Requirements
Crushed hands and arms, severed fingers and limbs, lacerations and abrasions -the list of possible machinery-related injuries is long and horrifying. Many hazards arecreated by moving machine parts. Safeguards are essential for protecting workers frompreventable injuries.
The following standards have been established to ensure the safety of machine operatorsand other employees in the area:
Machine GuardingPoint of Operation GuardingAdditional GuardingBarrels, Containers, and DrumsExposure of BladesAnchoring Fixed MachineryEye and Face ProtectionLockout/Tagout
For a printable sample employer self-inspection checklist for safeguards and other hazards, please see Appendix G.
Machine Guarding
The purpose of machine guarding is to protect the machine operator and otheremployees in the work area from hazards created by ingoing nip points, rotating parts,flying chips and sparks. Some examples of this are barrier guards, light curtains, two-
hand operating devices etc. [29 CFR 1910.212(a)(1)]
General Requirements: [29 CFR 1910.212(a)(2)]
Guards must not create potential hazards and must be attached to the machinewhere possible. If guards cannot be attached to the machine, attach elsewhere.
Point of Operation Guarding
The point of operation is the area on a machinewhere work is performed. [29 CFR 1910.212(a)(3)(i)]
Machines that expose an employee to injurymust be guarded. The guarding device must:
Be in conformity with any appropriatestandards. [29 CFR 1910.212(a)(3)(ii)]
If specific standards are not available, themachine construction should prevent theoperator from having any part of his/herbody in the danger zone during theoperating cycle. [29 CFR 1910.212(a)(3)(ii)]
Press Brake Operation
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Special handtools used for placing and removing material from point of operation areas must allow easyhandling of the material without the operator placing a hand in the danger zone. Such tools must not replaceguards required by this section. [29 CFR 1910.212(a)(3)(iii)]
Additional Guarding
The following is a list of machines that usuallyrequire point of operation guarding:
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require point of operation guarding: [29 CFR 1910.212(a)(3)(iv)]
Guillotine cutters (a)
Shears (b)
Alligator shears (c)
Power presses (d)
Milling machines (e)
Power saws (f)
Jointers (g)
Portable power tools (h)
Forming rolls and calenders (i)
Press brake cycle
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Barrels, Containers, and Drums
Revolving barrels, containers, and drums must be guarded by an enclosure interlocked with the drive mechanism,so the barrel, gun, or container cannot revolve unless the guard enclosure is in place. [29 CFR 1910.212(a)(4)]
Exposure of Blades
When the periphery of the blades of a fan is less thanseven (7) feet above the floor or working level, theblades must be guarded. The guard must not haveopenings larger than one-half (½) inch. [29 CFR1910.212(a)(5)]
Running Fan
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Anchoring Fixed Machinery
A machine designed for a fixed location must be securelyanchored to prevent walking or moving. [29 CFR1910.212(b)]
Anchored Machine
Eye and Face Protection
Eye and face protection must be provided to eachemployee when exposed to eye or face hazards fromflying particles. [29 CFR 1910.133(a)]
For more information, please refer to:
Eye and Face Protection. OSHA eTool.Eye and Face Protection. OSHA Safety and HealthTopics Page.
Safety Goggles
Lockout/Tagout
The employer must establish an energy control program consisting of energy control procedures, employeetraining, and periodic inspections to ensure that before any employee performs any servicing or maintenance on amachine or equipment, the machine or equipment is isolated from the energy source and rendered inoperative. [29CFR 1910.147(c)(1)]
For more information, refer to:
Lockout/Tagout Interactive Training Program. OSHA eTool.Lockout/Tagout. OSHA Safety and Health Topics Page.
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