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NHP Safety of Machinery - Hazard/Task Analysis & Risk Assessment - AS4024.1:2014


With this checklist, you can review your site documentation, assess risk and hazards, and evaluate machine operational safety, limits, and guarding all according to NHP and AS4024.1:2014 standards. With the help of this risk assessment, you can provide advice to third parties on how to improve the overall safety of their plant, equipment, and machinery.

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NHP Safety of Machinery - Hazard/Task Analysis & Risk Assessment - AS4024.1:2014

Audit

Document Revisions

Document Revisons
Revised By?
Date of Revision
Signature of Document Editor

Site Documentation viewed

Electrical Drawings
Hydraulic Circuits
Pneumatic Circuits
Mechanical Layouts
Operating manuals
Maintenance Manuals
Safety Instructions
Material Safety Data Sheets

Site or Plant Contacts

Personnel Interviewed About Machinery
Name
Position

Purpose of this Assessment

Purpose of this assessment is to provide the recipient company with advice and guidance relating to the safety of the plant, equipment or machinery being assessed. All relevant Australian and European standards applicable will be used to assess each hazard.

Motivation of Company requesting this assessment

(check name not set)

Service Provided

The risk assessment model being used is a widely acceptable form of examination for plant, equipment or machinery and work practices. The approach is a standardized set of approaches governing hazard identification, evaluating that risk posed to personnel. The assessment will give the reader an informed view on how likely a hazard would be to occur and what could be done to mitigate against the hazard occurring in the future.

Phases of machine operation being assessed

Transport
Cleaning
Maintenance / Repair
De-commisioning
Operation
Disposal
Installation
Assembly / Installation

Basic Machine Limits

Manufacturer / OEM
Machine Importer or supplier
Machine Name
Machine Serial Number
Are operators trained to use equipment?
Who is responsible for maintenance & repair?
Who is responsible for cleaning and clearing of jams etc?
Are maintenance staff trained on equipment?
What is the normal maintenance interval?
Is machine being used in it's intended environment?
Basic Description of Control System
What is the control voltage?
What is the main power supply voltage?
Does the machine have Hydraulic Controls
What is the Hydraulic Pressure in Bar?
Does the machine have Pneumatics controls?
What is the Compressed Air Pressure in Bar?

Details relating to hazard and tasks

Description of all Hazards
Photograph of Hazard
Area of Machine associated with hazard?
Task or operation?
Types of Hazards associated with the task?
Hazard Description

Hazard Rating Number - multiply DPH x FE x LO x NP to get HRN - the number determines the Risk Level.

DPH - Degree of Possible Harm
FE - Frequency of Exposure
LO - Likelihood of Occurance
NP - Number of Persons affected / in hazardous area
HRN - Hazard Rating Number ( LO x FE x DPH x NP = HRN)

Residual Risk Reduction

Residual Risk Reduction Measures
DPH - Degree of Possible Harm after Risk Reduction
FE - Frequency of Exposure after Risk Reduction
LO - Likelihood of Occurrence after Risk Reduction
NP - Number of Persons affected / in hazardous area
HRN - Hazard Rating Number ( LO x FE x DPH = HRN) after Risk Reduction

Category of Control required (AS4024.1501:2014) if Guarding solution requires SRP/CS and not just a mechanical guarding.

Severity of Hazard
AS4024.1-2014 Category B+1 Category B - Well Tried Principles - components - designed and constructed to withstand expected influences. Be correctly protected and dimensioned. Category 1 - Well Tried Safety Components and principles - widely used with successful components, made and verified for use in safety circuits.
Frequency of Hazardous Event
Possibility of Avoiding the Hazard(s)
AS4024.1-2014 Category 1 (with over-dimensioning and Fault exclusion) or Category 2 Category B - Well Tried Principles - components - designed and constructed to withstand expected influences. Be correctly protected and dimensioned. Category 1 - Well Tried Safety Components and principles - widely used with successful components, made and verified for use in safety circuits. OR Category 2 - Category B shall apply + safety functions shall be checked by the machine control system at suitable intervals. If manual checks are performed then this should be documented. Check shall generate a fault indication if a fault is detected
AS4024.1-2014 Category 2 (with over-dimensioning and Fault exclusion) or Category 3 Category B - Well Tried Principles - components - designed and constructed to withstand expected influences. Be correctly protected and dimensioned. Category 2 - Category B shall apply + safety functions shall be checked by the machine control system at suitable intervals. If manual checks are performed then this should be documented. Check shall generate a fault indication if a fault is detected OR Category 3 - Category B shall apply + shall be designed so that a single fault in any part of the SRP/CS does not lead to a loss of safety function. Wherever reasonably practicable, the single fault shall be detected at or before the next demand upon the safety function.
Possibility of Avoiding the Hazard(s)
AS4024.1-2014 Category 3 Category B - Well Tried Principles - components - designed and constructed to withstand expected influences. Be correctly protected and dimensioned. Category 3 - Category B shall apply + shall be designed so that a single fault in any part of the SRP/CS does not lead to a loss of safety function. Wherever reasonably practicable, the single fault shall be detected at or before the next demand upon the safety function.
AS4024.1-2014 Category 4 Category B - Well Tried Principles - components - designed and constructed to withstand expected influences. Be correctly protected and dimensioned. Category 4 - Category B shall apply + a single fault in SRP/CS does not lead to loss of safety function and the single fault is detected at or before the next demand of the safety functions i.e. immediately or at the end of the machine operating cycle. If detection is not possible then an accumulation of faults shall not lead to a loss of safety function.
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