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Guards

Prevent Access

If Infeasible

Devices

Control Access

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Requirements of Safeguards Prevent contact Secure Protect from falling objects Create no new hazards Create no interference Allow safe lubrication

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Where Mechanical Hazards Occur Point of operation Power transmission apparatus Other moving parts

– Nip points– Pinch points– Shear points– Rotating parts– Flying parts

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Training

Description and identification of hazards

How they provide protection How to use safe guards When to remove Protocol when safeguards are

missing

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Methods of Guarding

Guards Devices Location/distance Feed mechanisms Miscellaneous aids

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Guards

Barrier to prevent access to danger

Fixed guards Interlocks Adjustable Self-adjusting

Stock Exit

Stock enteringdanger zone

Transparent insertin front panel

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Fixed Frame Panel

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Box Barrier Guard without Inserts

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Adjustable Panels

Rigid - Adjustable Fixed - Adjustable

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Two and Four Panel Barrier Guard

Not considered a safeguard. Are used with safeguarding devices such as two-hand trips, presence sensing devices, pullback, or restraints. Designed to protect sides of the point of operation while the front is open for feeding and removing of pieceparts.

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Three and Five Panel Barrier Guard

Are designed to meet point-of-operation requirements. Rear of machine mustalso be guarded when applying front and side guards.

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Interlock Safety Switches

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Devices

Presence-Sensing Radiofrequency Electromechanical sensing

device Pullbacks Restraints Safety Trip Controls Two-Hand Controls Two-Hand Trip Gates

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Presence Sensing Device

Transmitters Receivers

Control Box

Interconnecting Cables

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Arm-Type Device

Arms

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Arm-Type Pullback

Pullbacks

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Overhead-Type Pullback

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Restraint Device - Arm-Type

Restraint

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Two-Person Overhead Sliding Restraint

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Light Curtainson Floor Stands

Two Operator Stations

Barriers

Control Box

Control Package with Light CurtainInterface or Two-Hand Control

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Press brake with two-hand control sequence

Two-hand Controls

Emergency Stop

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Gate Guards - Type “A” and“B”

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Location/Distance

Hazard analysis Hazards not accessible Walls Fences Height Stock dimension Operators station

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Press Safety Distances

Distance of Opening from Pointof Operation Hazard (inches)

Maximum width of opening (inches)

1/2 to 1-1/2 1-1/2 to 2-1/2 2-1/2 to 3-1/2 3-1/2 to 5-1/2 5-1/2 to 6-1/2 6-1/2 to 7-1/2 7-1/2 to 12-1/212-/12 to 15-1/215-1/2 to 17-1/217-1/2 to 31-1/2

1/4 3/8 1/2 5/8 3/4 7/81-1/41-1/21-7/82-1/8

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Press Safety Distances (cont’d)

Once a safe distance is calculated, note the following to right of press.– Date of measurement– Stopping time– Safe distance calculation– Added distance to allow for normal

deterioration– Forward most point of operation– Fixed location of safety device/guard

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Feeding & Injection

Automatic feeding Semi-automatic feed Automatic injection Semi-automatic

injection Robots

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Robot Safeguarding

StationControl Machine Guard Light

CurtainReceiver

MirrorLight Curtain Transmitter

Guard

PartsChute

SafetyMat

Robot

Parts Bin

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Miscellaneous Aids

Awareness barriers

Shields

Holding tools

Push stick or block

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OPERATORSAFETY PRECAUTIONS

Handout for Anyone Operating This Machine

Before You Operate This Machine You MustRead and Understand These Safety Precaution

DANGER

NEVERPlace Your Handsor Any Part of Your Body in ThisMachine

See Reverse Side for Other Safety Precautions.

Signs for Machinery

!

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PELIGROARIETE HIDRAULICO Y TROQUEL CIERREN

RESULTARA EN LA PERDIDADE DEDOS O DE MEMBROSSI ESTAN METIDO EN LA MAQUINA

NUNCA

USW UN PEDAL DE PIE PARAOPERAR ESTA MAQUINA AMENOS QUE SE PROVEE YMANTIENE UN PROTECTOR DESEGURIDA PARA EVITAR QUELAS MANOS U OTRAS PARTESDEL CUERPO ENTREN EN LAMAQUINA.

Signs For Machinery

!

NO SE DEBE QUITAR O TAPAR ESTE LETRERO. VEA L REVES PARA MAS INSTRUCCIONES.

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Free-Standing shield used around machines to protect people from flying objects

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Shield on milling machine

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Sliding Lathe Shield

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