Machine Guarding Safety July 2012

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Category: Education
     
 

Presentation Description

Machine Guarding & Machine shops according OSHA

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Presentation Transcript

Slide 1: 

MySafetyTrainingonline.com Presents Machine Guarding Safety

What You Will Learn : 

What You Will Learn

Slide 3: 

Crushed hands and arms, severed fingers, blindness -- the list of possible machinery-related injuries is as long as it is horrifying. There seem to be as many hazards created by moving machine parts as there are types of machines. Safeguards are essential for protecting workers from needless and preventable injuries. Intro to Machine Guarding Safety Let’s Get this Puppy Rolling – Literally & Figuratively

Slide 4: 

A good rule to remember is: Any machine part, function, or process which may cause injury must be safeguarded. Where the operation of a machine or contact with it can injure the operator or others in the vicinity, the hazards must be either eliminated or controlled. Introduction to Machine Guarding Safety

Slide 5: 

This presentation overviews the various hazards of mechanical motion and actions and presents some techniques for protecting workers from these hazards. The hazards created by different kinds of motions and the requirements for effective safeguards, as well as a brief discussion of training guidelines. Intro to Machine Guarding Safety

Machine Guarding Safety – Basic Principles : 

Machine Guarding Safety – Basic Principles

Slide 7: 

If it moves, it merits your attention – when it comes to Machine Guarding! Machine Guarding Principles - continued

Machine Guarding Principles : 

Machine Guarding Principles

Slide 9: 

Although some OSHA standards provide certain machine guarding requirements, Subpart O Machine Guarding standard provides general guarding requirements - In addition to specific requirements for woodworking machinery, abrasive wheel machinery, mechanical power presses, and power transmission devices. Machine Guarding Principles - Continued

Machine Guarding Principles : 

Machine Guarding Principles

Machine Guarding Safety - Basic Principles : 

Machine Guarding Safety - Basic Principles Dangerous moving parts in three basic areas require safeguarding:

Machine Guarding Safety - Principles : 

Machine Guarding Safety - Principles

Slide 13: 

Part 2. Hazards of Mechanical Machinery Discussion

Hazardous Mechanical Motions & Actions : 

Hazardous Mechanical Motions & Actions

Machine Guarding – Hazardous Machine Motions : 

Machine Guarding – Hazardous Machine Motions Flywheels Shafts Pulleys Gears Sprockets Couplings Fans Clutches

Hazardous Mechanical Motions & Actions : 

Hazardous Mechanical Motions & Actions

Machine Guarding Safety – Hazardous Motions – Reciprocating Motion : 

Machine Guarding Safety – Hazardous Motions – Reciprocating Motion

Machine Guarding Safety – Transverse Motion : 

Machine Guarding Safety – Transverse Motion

Machine Guarding – Transverse Motion : 

Machine Guarding – Transverse Motion Actions: 1. Cutting 2. Shearing 3. Bending 4. Punching Cutting punching

Slide 20: 

Part III. Methods of Controlling the Machine Hazard

Machine Guarding Hazard Control Introduction : 

Machine Guarding Hazard Control Introduction

Machine Guarding Safety – Controlling the Hazards : 

Machine Guarding Safety – Controlling the Hazards Guards Devices

Machine Guarding Safety – Controlling the Hazards : 

Machine Guarding Safety – Controlling the Hazards Auto/semi-auto feeding/ejection; Robotics

Machine Guarding Safety – Controlling the Hazards : 

Machine Guarding Safety – Controlling the Hazards

Slide 25: 

Part IV. Effective Guarding of Machine Moving Parts

Machine Guarding – Effective Guarding Methods : 

Machine Guarding – Effective Guarding Methods

Machine Guarding Safety – Erecting Effective Guards : 

Machine Guarding Safety – Erecting Effective Guards Non-Effective guards

Slide 28: 

The Last Criteria for Erecting Effective Machine Guarding are: Affixed to the machine where possible and remains secure Conforms with other appropriate standards ANSI, manufacturer specifications, etc. Erecting Effective Machine Guards - Continued

Machine Guarding Safety – Machine Guard Types : 

Machine Guarding Safety – Machine Guard Types

Machine Guarding Safety – Effective Guards : 

Machine Guarding Safety – Effective Guards

Machine Guarding Safety – Interlocking Guards : 

Machine Guarding Safety – Interlocking Guards Careful - Interlocked guards can be bypassed - this electric interlock on a trash compactor was taped down

Machine Guarding Safety – Adjustable Guards : 

Machine Guarding Safety – Adjustable Guards

Machine Guarding – Self Adjusting Guards : 

Machine Guarding – Self Adjusting Guards

Machine Guarding – Devices to Control Hazard : 

Machine Guarding – Devices to Control Hazard

Machine Guarding – Devices to Control Hazard : 

Machine Guarding – Devices to Control Hazard

Machine Guarding –Presence-Sensing Devices : 

Machine Guarding –Presence-Sensing Devices

Machine Guarding – Electromechanical Guards : 

Machine Guarding – Electromechanical Guards

Machine Guarding – Pullback Devices : 

Machine Guarding – Pullback Devices

Machine Guarding – Restraint Devices : 

Machine Guarding – Restraint Devices

Machine Guarding - Safety Trip Controls : 

Machine Guarding - Safety Trip Controls Safety tripwire cables may also be located around the perimeter or near the danger area.

Machine Guarding – Two Hand Controls : 

Machine Guarding – Two Hand Controls

Machine Guarding – Two Hand Trips Controls : 

Machine Guarding – Two Hand Trips Controls

Machine Guarding – Two hand Control Devices : 

Machine Guarding – Two hand Control Devices

Machine Guarding – Using a Protective Gate : 

Machine Guarding – Using a Protective Gate Two types: Type A - remains closed during entire cycle Type B - remains closed during down-stroke only

Controlling the Hazard through Location & Distance : 

Controlling the Hazard through Location & Distance

Controlling Machine Hazards through Location & Distance : 

Controlling Machine Hazards through Location & Distance Factors to consider when guarding by location/distance: Can it still be accessed, even with great effort? Can pieces/parts break and fall onto someone/something? Are sparks or other flying debris being produced from the equipment? OSHA still has the “7 foot rule” for fan blades and power transmission devices

Machine Guarding - Feeding & Ejection : 

Machine Guarding - Feeding & Ejection

Machine Guarding - Feeding & Ejection : 

Machine Guarding - Feeding & Ejection

Machine Guarding – Robots : 

Machine Guarding – Robots

Machine Guarding – Robots - continued : 

Machine Guarding – Robots - continued

Machine Guarding - Miscellaneous Aids : 

Machine Guarding - Miscellaneous Aids

Machine Guarding – Miscellaneous Aids : 

Machine Guarding – Miscellaneous Aids For example, plexiglass shields on abrasive wheel grinders do not substitute the requirement for eye/face protection or a tongue guard if distance from safety guard & top periphery of stone exceeds 1/4 in. Plus, they can get in the way and are often broken or dirty - creating a hazard in themselves!

Slide 53: 

Part V. Machine Guarding Safety Training Requirements

Slide 54: 

Training Requirements Include: Discussion of hazardous exposures and control measures Hazardous motions Hazardous actions Potential of flying/ejected material Machine Guarding Safety Training Requirements

Slide 55: 

Don’t Forget about these: Fire/combustion potential Appropriate personal protective equipment and clothing Health hazards Air quality Noise & vibration Metal-working fluids

Slide 56: 

Lets not forget these safety training items: Equipment-specific training (hands-on) Proper operation of safeguards Limitations of safeguards Maintenance & care, Machine Guarding Safety – Safety Training Requirements

Slide 57: 

Included in those safety training requirement are these items as well: Inspection Adjustment/placement Clarification of manufacturer requirements Instruction on when safeguard is discovered damaged, missing, etc. Machine Guarding Safety – Training Requirements

Slide 58: 

Retraining? Training, and relevant retraining, must be provided for new operators and maintenance/setup employees. Also, retrain affected employees when new or altered safeguards are used, when the employee(s) is assigned to a new machine or operation, and whenever worker deficiencies are discovered. Machine Guarding Safety – Safety Training Requirements - Retraining

Machine Guarding Safety Summary : 

Machine Guarding Safety Summary