safe management.pptx

8/13/2019 SAFE MANAGEMENT.pptx

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SAFE MANAGEMENT

FOR MECHANICALENGINEERING


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INTRODUCTION

This slide is prepared for the workers for

a better understanding of the hazards

associated with the machines used in

the industry. Hence, control measuresand risk levels can be assessed for

effective control of the hazards.

The hazards identified in thepresentation may be applicable to other

industries.


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INCIDENT HISTORY

Lack of protection (e.g. equipment

safeguards);

Not following procedures; Lack of training;

Lack of maintenance;

Horseplay; and

Others


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INCIDENT HISTORY

These incidents can cause:

Damage to the body, e.g. cuts, crushing

of limb, etc Injuries by energies released from the

machine, e.g. electrical shock, burn, etc

Fatalities


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Machine Hazards

When identifying the hazards related with machines, weshall consider:

type of machines

layout of machines

driven method, e.g. electricity, air, etc

operating parameters, e.g. speed, pressure, temperature,

size of cut, mobility, etc.

materials to be processed or handled and method of feed


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Machine Hazards

Loose Clothing

Unguarded Rotating Parts of Machine


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Machine Hazards

Unguarded Rotating Parts of Machine


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Machine Safety

Risk assessment for machine operation

Steps for risk assessment:

Step 1: Identify the hazards

Step 2: Identify the existing controls

Step 3: Assess the risk level based on the matrix

Step 4: Identify the need for additional control measures

Step 5: Assign the responsible persons


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Machine Safety

Step 1: Identify the hazards

Breakdown the activities

Identify the hazards and Consequence of each activity (Section 3)


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Machine Safety

Step 2: Identify the existing controls


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Machine Safety

Step 3: Assess the risk based on the matrix

Risk Level = LikelihoodSeverity


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Machine Safety

Severity Definition by MOM

Likelihood Definition by MOM


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Machine Safety

MOM Risk Assessment Matrix:


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Machine Safety

Step 4: Identify the need for additional control

What is the risk level with the consideration of existing controls?

High risk must be reduced to at least medium risk before

startup of work

Whether the risk level can be further reduced to As Low As

Reasonably Practical (ALARP)?


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Machine Safety

Step 5: Assign the responsible person

Responsible person shall be assigned for each

identified activity

Time frame for the activity can also be decided

Responsible person shall ensure the effective

closure of the activity


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Machine Safety

HIERARCHY OF HAZARDS CONTROL


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Machine Safety

Control Measures

Types of hazards control measures

Machine guarding

Using devices, e.g. sensor, gates, etc

Distance

Use of automatic or semi-automatic fed and ejection/robots

Use of feeding tools

Training, Procedures (LOTO), etc

PPE


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Machine Safety

Types of machine guarding

Fixed guard

Interlocked guard

Adjustable guard

Self-adjusting guard


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Machine Safety

Machine Guard

Fixed Guard of Machine


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Machine Safety

Machine Guard

Interlockedguard on

revolvingdrum

Interlocked Guard of Machine


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Machine Safety

Machine Guard

Circular tablesaw self-

adjusting guard

Self-adjusting

Guard


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Machine Safety

DevicesTwo-hand Control

Two-hand Control


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Machine Safety

Devices

Restraint Device


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Machine Safety

Holding Tools


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Machine Safety

Emergency Switch

Emergency switch is provided when emergency stoppingof machine is necessary, and hence, the switch shall:

Be easily accessible to the operator; and

Be designed for unexpected activation

When necessary, buddy system shall be considered.


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Machine Safety

Emergency Switch

Emergency Switches for Different Uses


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Machine Safety

Power Trucks

While using power trucks for material transportation, the

following could be applied:

Do not block the vision

No passengers allowed

Wrap the load from falling

Limit the speed

Consider door access control to minimize the impact to

pedestrians


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Machine Safety

Lockout/Tagout Procedure

LOTO is used to control theunexpected release of energy:

Electricity

Steam

Gas

Physical Lockout/Tagout


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Machine Safety

Lockout/Tagout Devices

Physical Lockout/Tagout
http://en.wikipedia.org/wiki/Image:Lockout.jpg


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Machine Safety

Lockout/Tagout (LOTO) Procedure

What must be included in the LOTO Procedure?

A statement on how to use the procedures;Steps to shut down, isolate, block, and securemachines;

Steps designating the safe placement, removal, andtransfer of LOTO devices and identifying who has

responsibility for the LOTO devices; and

Requirements to determine and verify theeffectiveness of lockout devices, tagout devices, andother energy-control measures.


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Machine Safety

Lockout/Tagout (LOTO) ProcedureWhat must workers do before maintenance activities?

1.Prepare for shutdown;

2.Shut down the machine;

3.Disconnect or isolate the machine from the energysource(s);

4.Apply the lockout or tagout device(s) to the energy-isolatingdevice(s);

5.Release, restrain, or render safe all potential hazardousstored or residual energy. Regularly inspect to avoid re-accumulation of energy if necessary.

6.Verify the isolation and de-energization of the machine.


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Machine Safety


What must workers do before removing LOTO device andreenergize the machine?

Step 1: Inspect machines or their components to assurethat they are operationally intact and that nonessentialitems are removed from the area; and

Step 2: Check to assure that everyone is positionedsafely and away from machines.


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Machine Safety


What are the limitations for tagout devices?

A tagout device is a prominent warning of thehazards;

Tags do not provide the physical restraint of a lock;

Tags may evoke a false sense of security;

Therefore, lockout devices is considered more secureand more effective than tagout devices in protectingemployees from hazardous energy.


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Machine Safety

Training

Before using any machine, you should:

Be trained by qualified person/agent

Clarify any doubt on machine usage

Have the correct certificate, if required by law

Inspect the machine for good condition (or inspected

by qualified persons)Do not operate machine unless authorized


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Machine Safety

PPE

Before using any machine, you should ensure that:

Proper PPE is used to conduct the work

The PPE is in good condition

Proper training has been given on how to

use PPE


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Machine Safety

Ergonomics

Some basic tips to improve ergonomics:

Use equipment to aid material handling

Use correct material handling position

Maintain comfortable position when working

Do the work with proper tools


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Machine Safety

Ergonomics

Use Tools with Better Grip


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Machine Safety

Ergonomics

Select the Correct Tool for the Job


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Machine Safety

Ergonomics

Adopt the Correct Posture


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Machine Safety

Safe Practices

The following practices shall be observed at all times:

Always use the safety devices correctively;

Do not wear loose clothing/ties when operatingmachines with rotating parts;

Tie up or cover up long hair;

Use devices to remove trapped materials frommachine;

Switch off the machine before retrieving droppedmaterial(s) from inside the machine.


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END!!!!!!!!!!

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