WELCOMEWELCOME

PORTABLE HANDHELD GRINDER PORTABLE HANDHELD GRINDER AUTHORISATION TRAININGAUTHORISATION TRAINING

INTRODUCTIONINTRODUCTION

Purpose

• To instruct personnel on the use and care of portable hand held grinders at Dungeness B

Objectives

• To ensure candidates competence in the inspection, use and care of portable hand held grinders

Format

• Slide show

•Practical observation (Optional)

All guards, equipment handles All guards, equipment handles and triggers guardsand triggers guards

On power tools On power tools

““Must not be removed or defeated”Must not be removed or defeated”

PUWERPUWER

DNB/LSI/014/S021 DNB/LSI/014/S021 Hot WorkHot Work

WHY ARE WE HERE?WHY ARE WE HERE?

Recent EventsRecent Events

Grinders

• Side handle must be fitted.• Kevlar sleeves must be worn - Stores code A862500• Deadman’s handle (No lock on option) • Unplug it before you change discs.• Put it down - Before repositioning yourself, wait until the disc has stopped, then place the grinder in safe position.• All guards fitted and adjusted .

The Rules

All rotating equipment and tools represent a hazard. Be aware of the risks of entanglement, abrasion, flying objects, noise and vibration and ensure the hazards are appropriately controlled.

• Health and Safety at Work etc. Act 1974Health and Safety at Work etc. Act 1974

• Management of Health of Safety at Work Regulations 1999Management of Health of Safety at Work Regulations 1999

• Provision and Use of Work Equipment Regulations1998Provision and Use of Work Equipment Regulations1998

• Noise at Work Regulations 1989Noise at Work Regulations 1989

• Personal Protective Equipment Regulations1992 Personal Protective Equipment Regulations1992

RELEVANT RELEVANT LEGISLATIONLEGISLATION

Provision and Use of Work Provision and Use of Work Equipment (PUWER)Equipment (PUWER)

Regulation 9 Training

• Every employer shall ensure that all persons who use

work equipment have received adequate training for the

purposes of Health & Safety, including training in the methods

which may be adopted when using the work equipment, any

risks which may entail and precautions taken.

Note - This is not trade training persons on this session MUST be deemed as competent by their employers

• AS ABOVE – for employees who supervise or manage the trade skill MUST confirm their competency as part of the setting to work process

•Young persons MUST be subject to a special RA before allowed to use a portable grinder

Section 7.

“It shall be the duty of every employee while at work to take reasonable care for the health and safety of himself and other persons who may be affected by his acts or omissions at work; and to co-operate with his employer in order to enable statutory health and safety requirements to be complied with

HASAWA 1974HASAWA 1974

TYPES OF WORK EQUIPMENT TYPES OF WORK EQUIPMENT USING ABRASIVE WHEELS?USING ABRASIVE WHEELS?

• Coming into contact with moving parts of the Coming into contact with moving parts of the equipment (including abrasive materials).equipment (including abrasive materials).

• Wheel/Disc bursting and material being ejected.Wheel/Disc bursting and material being ejected.• Abrasive and small particles coming into contact with Abrasive and small particles coming into contact with

eyes.eyes.• Noise from equipment.Noise from equipment.• Vibration from equipment.Vibration from equipment.• Kickback where the grinder is thrust away from the Kickback where the grinder is thrust away from the

work piece. work piece. • Inhalation of fumes and dusts from materials being Inhalation of fumes and dusts from materials being

worked on.worked on.• Entanglement with loose items drawing grinder to the Entanglement with loose items drawing grinder to the

operatoroperator• Electrocution (PAT TESTING )Electrocution (PAT TESTING )

HAZARDSHAZARDS

ACCIDENTSACCIDENTSContact Injuries 60%:Touching wheel, burns, cuts, gashes, possible

Amputations, inadvertent, behavioural.

These can be prevented by training in the correct use.

Eye Injuries 30%:Caused by lack of eye protection –

Must be impact 1grade Goggles or Full face visor Grade 1B

These injuries can be prevented by wearing the correct PPE and deploying the guard/deflector as trained

Burst Wheels 10%:Various Causes, Manufacturing defect ,incorrect use, behavioural,

incorrect disc for application of work .

RIGHT TOOL FOR THE TASKRIGHT TOOL FOR THE TASK

• Is use of a portable angle grinder/cutter the right option for task.

Has the grinder the following designed safety features?:

• Soft start option (wherever possible)

• Deadman’s handle (incorporating auto disconnect lock on facility). Deadman’s handle is mandatory (If it comes with a lock on switch this must never be engaged by the user).

• Left and right hand operation as standard.

If the answer is no to any of the above, consult Industrial Safety before proceeding

RIGHT TOOL FOR THE TASKRIGHT TOOL FOR THE TASK

• Is the size of the unit correct for the task consider weight, ergonomic design, task position, extent of work, work periods, rest periods, restricted working space?

• Is the guard in place and set to correct position in good condition and secure?

HOT WORKHOT WORK

Grinding /cutting is classed as hot work and will require a Grinding /cutting is classed as hot work and will require a hot work certificate hot work certificate

in accordance with BEG/SPEC/SHE/CSI/042 Hot Workin accordance with BEG/SPEC/SHE/CSI/042 Hot Work

• Guarding is provided to contain fragments of the wheel that Guarding is provided to contain fragments of the wheel that might fly off if it did burst so preventing injury to the user and might fly off if it did burst so preventing injury to the user and others in the workplaceothers in the workplace

• The guards secondary use is deflection of the debris and sparks The guards secondary use is deflection of the debris and sparks away from the operator away from the operator

• Operators suitably trained in the correct handling and mounting Operators suitably trained in the correct handling and mounting of abrasive wheels (This is for portable grinders only)of abrasive wheels (This is for portable grinders only)

• Correct mounting will reduce the risk of bursting.Correct mounting will reduce the risk of bursting.

Control MeasuresControl Measures

Guard Fitted Guard Fitted

PERSONAL PROTECTIVE EQUIPMENTPERSONAL PROTECTIVE EQUIPMENTMandatory PPE requirement

Kevlar Sleeves

Wide vision goggles, Offer eye protection and also prevent dust and debris entering users eyes or/and Full face visor as an alternative offers full face protection but is not

sealed against dust and debris

impact rated to BS grade 1 or EN grade B

Consideration should be given full face fitted respiratory units or indirect vented goggles to prevent dust ingress

Heavy duty gloves (Riggers leather) as a compromise is required that allows user to hold and maneuver the grinder during use

Rated for mechanical protection

EN 388

Abrasion rated 3 or greater

Cut rated 4 or greater

Tear 2 or greater

Puncture 1 or greater

PERSONAL PROTECTIVE PERSONAL PROTECTIVE EQUIPMENTEQUIPMENT

• A Kevlar fibre knitted sleeve with or without the cowhide split leather reinforcement on each arm

• Hearing defenders due to high noise levels

• Fire retardent workwear close fitting, no loose cords that may become entangled and draw the angle grinder/cutter into the user

•Long hair/jewellery - tied back/made secure

Task risk assessment may require further protection:-

• Hood to protect against particles been ejected or bounced back in restricted spaces

•Respirator when the material or coatings may be harmful to the operator

• Leather apron/jacket may offer protect to lower body and chest area (although may not be practical)

Grinders and use on Non ferous items

• Abrasive (grinding wheel) composition may be compromised by the heat generated by a "clogged" wheel. The heat is usually carried away from the wheel in the metal it removes, but a clogged wheel becomes a heat generator and the metal adhered to the wheel seals the heat in, therefore you could see a

wheel explosion when the material is in contact with the wheel. • Examples of material that will clog discs• Copper • Brass • Aluminium

• Paint coatings • Always select the right disc for the material to

be worked on if in doubt refer to manufacturer

PERSONAL PROTECTIVE EQUIPMENTPERSONAL PROTECTIVE EQUIPMENT

Heavy duty rigger gloves Heavy duty rigger gloves are suitable the gloves must are suitable the gloves must

be flexible so as not to be flexible so as not to compromise the feel of the compromise the feel of the

user user

PERSONAL PROTECTIVE EQUIPMENTPERSONAL PROTECTIVE EQUIPMENT

The disposable dust mask will only give non The disposable dust mask will only give non hazardous dust protection hazardous dust protection

(Use a Non disposable with correct filter (Use a Non disposable with correct filter attached for hazardous material) attached for hazardous material)

PERSONAL PROTECTIVE EQUIPMENTPERSONAL PROTECTIVE EQUIPMENT

Heavy duty glovesHeavy duty gloves

Kevlar & Leather sleevesKevlar & Leather sleevesWorn when using grinders Worn when using grinders

may be worn over or may be worn over or

under overall sleevesunder overall sleeves

PERSONAL PROTECTIVE EQUIPMENTPERSONAL PROTECTIVE EQUIPMENT

3M9925 / 88353M9925 / 8835 Impact grade 1B gogglesImpact grade 1B goggles

• All moving parts of work equipment must be suitably guarded. All moving parts of work equipment must be suitably guarded. • If adjustable guards are fitted they must always be adjusted prior to use and never removed.If adjustable guards are fitted they must always be adjusted prior to use and never removed.

• Check guard for cracks wear or other damage.Check guard for cracks wear or other damage.

• Clean inside of guard before installing new wheel. Clean inside of guard before installing new wheel.

• Confirm the guard has been adjusted and locked.Confirm the guard has been adjusted and locked.

GUARDSGUARDS

Automatic Blade Guard - Portable Cut-Off SawAutomatic Blade Guard - Portable Cut-Off Saw

GUARDSGUARDS

Not covered under Not covered under the requirements the requirements

GUARDSGUARDS

Guard Fitted Guard Fitted

No Guard can be fitted to this type of No Guard can be fitted to this type of tool therefore totally reliant on safe tool therefore totally reliant on safe method of operation and PPE worn.method of operation and PPE worn.

Not covered under these Not covered under these requirements requirements

GUARDSGUARDS

Task: Cut reinforcing bars from box-out in Task: Cut reinforcing bars from box-out in concrete wall.concrete wall.

Work Equipment: 4” Angle grinder fitted with Work Equipment: 4” Angle grinder fitted with steel cutting disc.steel cutting disc.

Personnel: Experienced General Labourer Personnel: Experienced General Labourer trained in abrasive wheels.trained in abrasive wheels.

The operative requested a new pair of gloves The operative requested a new pair of gloves from the stores but the expected delivery hadn’t from the stores but the expected delivery hadn’t arrived yet. arrived yet.

The operative went to stores to collect an angle The operative went to stores to collect an angle grinder, the only one available had its guard grinder, the only one available had its guard removed he took it anyway. removed he took it anyway.

Unknown persons previously using the tool Unknown persons previously using the tool removed an angle grinder guard. removed an angle grinder guard.

Instead of continuing to use the gloves he Instead of continuing to use the gloves he already has the operative doesn’t wear already has the operative doesn’t wear gloves whilst carrying out the task.gloves whilst carrying out the task.

Accident happens, and operative received Accident happens, and operative received injuries which resulted in him losing sections of injuries which resulted in him losing sections of his fingers and becoming disabled for the his fingers and becoming disabled for the remainder of his life. remainder of his life.

GUARDS – CONSEQUENCES OF NOT GUARDS – CONSEQUENCES OF NOT USING!!!!USING!!!!

REMEMBER USER INSPECTIONSREMEMBER USER INSPECTIONS

Portable Hand Held Grinders

• Inspect grinder housing to ensure no cracking/breakage• Ensure that the cable is free from cracking/burning/broken sheath and that the plug is in good condition• Must be 110 volts & Pat Tested • Discs inspected and in good condition (correct disc speed for grinder •Second Handle fitted •No exposed wires or lacerations on the cable

Practical TestPractical Test

• The operators training history MUST be confirmed as having covered the use

of portable angle grinders/cutters

•This session is an assessment not a training course.

Competent assessor (List of requirement below)

• A selection of discs size/cutting/grinding /material specific/

• All specified mandatory PPE

• Grinder (Approved version)

Practical TestPractical Test•Under observation

•If a group session ask each person to do separate checks and others to comment

•Request operator to complete grinder inspection for obvious defects

•Once inspections are completed ask operator to don required PPE

•Request operator to adjust the guard on the grinder (Not plugged in)

•Request operator to change the disc on the grinder

•Request operator to place grinder down as per the design (On its back disc upwards)

•Discuss as group or an individual the session and any learning from it

•Ask for any further points missed from the session that would improve it

•

SUMMARYSUMMARY

• Abrasive wheels use is covered by the Provision and Use of Work Equipment Regulations 1998• You must be trained and deemed competent.• • This training is not abrasive wheel training.• You must wear the correct PPE• Do not defeat safety devices (guards, side handle etc)• If you are unsure, STOP and ask.

THANK YOUTHANK YOUANY QUESTIONS?ANY QUESTIONS?