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Showing posts with label Tool Box Talk. Show all posts
Showing posts with label Tool Box Talk. Show all posts

Monday, 3 August 2020

Tool Box Talk : Mobile Plant Safety


Hazard: Being struck by or run over by a vehicle; vehicles going out of control.

All employees and visitors should be aware that the greatest risk of fatal injury at the quarry is from interaction with vehicles. They must follow site rules and remain vigilant at all times for their own safety and the safety of others.



Control Measures
  1. You must not drive any vehicle on site unless trained and authorized to do so.
  2. Always drive your machine with due care and consideration for others.
  3. Drivers must carry out daily vehicle checks and report any defects or poor road conditions immediately.
  4. Never allow passengers to ride on the vehicle.
  5. Ensure that all loads are secure and evenly distributed and within the load-carrying capacity of the machine. Loose loads must be tied down.
  6. Avoid harsh acceleration and braking.
  7. Vehicle operators should ensure that flashing amber beacons, reversing lights, reversing sirens and other reversing aids such as CCTV are operational and clean.
  8. Drive at a speed where any obstructions in the road will not present a danger.
  9. Never take for granted that everyone else is on the lookout for you.
  10. Ensure you know the position of any overhead cables at the quarry and never drive with the tipper body in the raised position.
  11. Pedestrians must wear high visibility clothing.
  12. Pedestrians must ensure they stay outside of the vehicle’s operating radius and turning circle and ensure that the driver is aware that they are in the area.
  13. Pedestrians should not approach vehicles unless the driver is aware of their intentions and has signaled that it is safe to approach.


Thursday, 7 February 2019

Toolbox talk- Rigging Hardware

    

Toolbox talk- Rigging Hardware

     Explain dangers:
  • Rigging is only as strong as its weakest link. Workers’ lives depend on the strength of that link.
  • It doesn’t matter what safe working load is stamped on a hook if the hook is cracked and twisted or opening up at the throat. It can’t deliver its full rated capacity.
  • Inspection is vital in rigging and hoisting.
Identify controls:
  • Rigging hardware must have enough capacity for the job. Only load - rated hardware of forged alloy steel should be used for hoisting. Load - rated hardware is stamped with its working load limit or WLL.
  • Adequate capacity is the first thing to look for in rigging hardware. For hoisting, the design factor must be 5 to 1.
  • Once the right hardware has been chosen for a job, it has to be inspected regularly as long as it’s in service.
There are warning signs that hardware has been weakened in use and should be replaced.
  • Cracks:-  Inspect closely —some cracks are very fine.
  • Missing parts:-  Make sure that parts such as clips, and cotter pins in shackle pins are still in place.
  • Stretching:-  Check hooks, shackles, and chain links for signs of opening up, elongation, and distortion.
  • Stripped threads:-  Inspect turnbuckles, shackles, and cable clips
Demonstrate:

Using samples of hardware on site, review the following points.

Cable Clips
  • Check for wear on saddle.
  • Check that original parts are in place and in good condition.
  • Check for cracks.
  • Check for proper size of the wire rope.

Shackles
  • Check for wear and cracks on saddle and pin.
  • Check that pin is straight and properly seated.
  • Check that legs of shackle are not opening up.

Hooks
  • Check for wear, twisting, and cracks.
  • Make sure that hook is not opening up.

Turnbuckles
  • Check for cracks and bends.
  • Check rods for straightness and damage to threads. 

With your crew, inspect rigging hardware in use or stored on site. Arrange for repairs or
Replacement of any damaged or defective items.

Toolbox talk - 10 Common Rigging Safety Rules


Toolbox talk - 10 Common Rigging Safety Rules

These 10 common rigging safety rules will help you remember some of the most important safe rigging practices.
  1. Be sure to establish the weight of the load.
  2. Determine the proper type of hitch based on the type of load.
  3. Understand the relationships between angles and tension as they pertain to slings and hardware. If you don’t understand the relationships, or if you have any questions, check with your supervisor before you proceed.
  4. Make sure that you select the right sling for the job based on the type of load to be lifted.
  5. Also, select the right hardware based on the type of load and the type of sling or slings that will be used for the lift.
  6. Inspect each sling before you use it. Never use a defective sling. Take defective slings out of service immediately and follow your company’s procedure for handling defective equipment.
  7. Inspect all rigging hardware before you use it. Never use defective hardware.Take defective hardware out of service immediately and follow your company’s procedure for handling defective equipment.
  8. As you rig the load, protect slings from cuts and tears.
  9. Determine the load’s center of gravity.
  10. Pay close attention to detail at the time of the lift.

Thursday, 29 November 2018

Toolbox talk -Rigging Safety Tips 2

Toolbox talk -Rigging Safety Tips 2

Here are more safety tips for some of the common mechanical construction industry rigging applications.
  1. Never allow a synthetic sling to bunch up on a shackle.
  2. Always use the right size shackle for the job. For example, a 1 inch shackle is too small to use with a 1 ½ inch wire rope sling. However, a 2 inch shackle works safely with a 1 ½ inch wire rope sling.
  3. Never make a shackle to shackle connection.
  4. Be sure to use a safe shackle orientation. Don’t allow the inside loop of a wire rope sling to place tension on a shackle pin directly where the pin screws into the shackle or directly where the pin comes through the hole on the opposite side of the shackle. Doing so would place too much tension on the shackle ears.
  5. Never orient two slings in a shackle so that they would pull the shackle in opposite directions that are parallel to the shackle pin.
  6. Be sure not to orient a shackle/sling on a shackle pin in a manner that could result in the shackle pin becoming unscrewed during the lift.
  7. Make sure that you choose the right size sling/sling loop based on the size of the crane or derrick hook.
  8. Be sure not to “point load” crane or derrick hooks. The rated capacity of the hook decreases as the angle increases and the load moves out away from the center of the hook.

Toolbox talk-Rigging Safety Tips -1

Toolbox talk-Rigging Safety Tips -1
Here are some safety tips for some of the common mechanical construction industry rigging applications.
  1. Never tie two or more slings together.
  2. Always connect two slings with an appropriate-sized shackle.
  3. Never attach a sling directly to a lifting lug. Always use a shackle.
  4. Likewise, never run a sling through a set of lifting lugs or eye-bolts. Doing so creates too much tension on the lugs or eye-bolts.
  5. Never choke below the threads on synthetic web slings.
  6. Take wire rope slings out of service immediately if they become defective. A wire rope is defective if there are five or more broken wires in one rope lay and/or three or more broken wires in one strand of one rope lay, (a rope lay is the length along the rope where one strand makes a complete revolution around the rope).
  7. Some companies have established a policy that wire rope is defective when a single wire breaks. Check with your supervisor about your company’s policy before using wire rope slings.
  8. “Never saddle a dead horse.” When using wire rope clips be sure to attach the wire rope clips with the inside curve of the U -bolt up against the very end(dead end) of the wire, and the inside of the U-bolt clip (saddle) up against the live end of the wire.

Wednesday, 14 November 2018

Tool Box Talk : Electrical Safety : A : LIGHTNING STRIKES

Tool Box Talk : Electrical Safety : A : LIGHTNING STRIKES

A single stroke of lightning may have 125,000,000 volts of electricity. That's enough power to light a 100-watt light bulb for more than 3 months, or enough to seriously hurt or kill someone. For every five seconds you count, the lighting is one mile away, if you can see a flash and instantly hear thunder, the lightning strike is very close and you should seek shelter immediately. When you see lightning, follow these safety rules:

If you're outdoors, seek shelter from lightning! Buildings are best for shelter, but if no buildings are available, try to find protection in a cave, ditch, or a canyon. Trees are not good cover! If you're in the woods, look for an area of shorter trees and crouch down away from tree trunks.
  • Stay off or away from anything tall or high including rooftops, scaffolding, utility poles and ladders.
  • If you're traveling, stay in your vehicle and roll up the windows. Don't touch the metal parts of your vehicle.
  • Do not use metal objects outside, such as golf clubs or metal tools.
  • If your skin tingles or your hair stands on the end, a lightning strike may be about to happen. Crouch down on the balls of your feet with your feet close together. Keep your hands on your knees and lower your head. Get as low as possible without touching your hands or knees to the ground. DO NOT LIE DOWN!
When someone is struck by lightning, get emergency medical help as soon as possible. Often the person can be revived with cardiopulmonary resuscitation (CPR). There is no danger to anyone helping a person who has been struck by lightning - no electric charge remains. Start CPR immediately

Tool Box Talk: Electrical Safety : B: ELECTRICAL BURNS

Tool Box Talk: Electrical Safety : B:  ELECTRICAL BURNS
Electrical burns occur when current jumps from an electrical outlet, cord, or appliance and passes through your body. Electrical burns cause tissue damage, and are one of the most serious injuries you can receive and need to be treated immediately.


  • Burns suffered in electrical incidents can be divided into three types; electrical burns, arc burns, and thermal contact burns. AN three types of burns may be produced simultaneously.
  • High voltage contact burns can burn internal tissues while leaving only very small injuries on the outside of the skin where it enters and much larger wound where it exits. Burns suffered in electrical accidents may affect the skin, muscles, and bone.
  • High temperatures near the body produced by an electric arc or explosion cause arc or flash burns. They should also be attended to promptly.
  • Thermal contact burns occur when skin comes in contact with overheated electric equipment, or when clothing is ignited in an electrical incident.
  • If someone receives an electrical burn, seek medical attention immediately. If the victim is still in contact with the energized circuit, shut it off. Do not touch the victim. You do not want to be a victim too.
To prevent electrical burns, use safe work practices, lock out and tag all machines/ equipment/circuits during service, wear proper persona! Protective, and stay at least 10 feet away from overhead power lines