Rigging Safety

Originally published 11/04/2015

Failure to properly secure static loads for transport causes injury to people and damage to property. When securing a load against unwanted movement during hauling, employees should use the same rigging techniques for tie-down as for lifting. The consequences of rigging failure during transport can be just as disastrous as dropping a load during a high crane lift.

The quality of the rigging equipment is important. Rigging materials such as chains, straps, hooks, eye bolts and clamps are not required to meet the same standards as similar gear used for lifting. However, when using come-alongs, strap winches and other tightening devices, the strain on rigging materials can begin to approximate lift strain. When the strain on equipment caused by tightening is combined with the strain of a truck when turning quickly, climbing a steep grade or making sudden stops, the strain on equipment can equal that of lifting, and cause rigging to fail.

Most chains used for hold-in-place rigging are grade 70. While these chains are very strong, they do not meet OSHA standards and are not safe for overhead lifting. Chains that are rated for lifting are typically SGG grade 100 chains. It stands to reason that a 70-grade chain is more susceptible to wear and tear than a heavier grade chain.

To ensure safety, inspect all tie-down equipment before use as follows:

  • Test chain links for stretch and breakage.
  • Inspect hooks for deflection at the throat and twist.
  • Inspect eye bolts and other terminating attachment points for wear and deflection.
  • Test tie-down points on the truck or load surface for wear and damage.

The same procedure should be used for straps and other tie-down equipment. If the equipment shows extreme wear, don’t use it.

Additional tips for load management include:

  • Place lighter items at the bottom of the load so that heavier items can help hold them down.
  • Block items against each other, or bundle them together, to minimize shifting and movement.
  • Lay tall items flat in the truck bed or trailer, when possible.
  • Block the wheels of equipment to prevent rolling. Wrap straps around and through wheeled equipment to further secure it.
  • Cover items with a solid, waterproof tarp to prevent damage from rain and airborne debris.
  • Tag all load corners with red flags if the load extends four feet beyond the bed of the truck or trailer.

Well-secured loads provide safety for your employees as well as the motoring public.

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Pinch, Shear, Wrap and Crush Points

Originally published 10/18/2016

Heavy construction equipment uses a lot of power. Even with all the safeguards that manufacturers install, without proper precautions you could find yourself suddenly caught in a pinch, shear, wrap or crush point and be fighting for your life. You could be cut, crushed, pulled in or struck by an object when working around construction equipment.

Pinch Points – A pinch point is any point where it is possible for a person (or part of a person’s body) to be caught between moving parts of a machine, or between the moving and stationary parts of a machine. Belt drives and chain drives are good examples.

Shear Points – The edges of two objects moving close enough together to cut relatively soft material create shear points. Hedge trimmers, grain augers and rotary mower blades are examples of tools that have shear points.

Wrap Points – Wrap points are found on rotating shafts or rods and can catch a sleeve, cuff or pant leg. You can quickly be pulled into a piece of equipment if you are caught in a wrap point. Motor shafts and axles are good examples of wrap points.

Safety precautions for pinch, shear or wrap points include:

  • Examine the equipment, looking for areas where pinch, shear or wrap points occur and avoid them.
  • Wear close-fitting clothing and remove jewelry.
  • Be aware that fatigue, carelessness and haste contribute to entanglement incidents.
  • Do not reach over, around or work on rotating parts.
  • Before working on equipment, turn it off. Make sure any moving parts have completely stopped. Lock it out and tag it.
  • Replace any shields that have been removed for maintenance.
  • Maintain manufacturer-installed warning labels and place highly-visible warnings on parts and equipment to identify pinch, shear or wrap points not previously labeled.

Crush Points – Crush points exist when two objects move toward each other, or one object moves toward a stationary object. Crush points can exist when connecting trailer hitches or backing up trucks to dump a load. Safety precautions for crush points include:

  • Identify machines that may have crush points.
  • Don’t allow anyone to stand or place any body parts in the space between two objects that form a crush point.
  • When hitching an implement, wait until the tractor has completely stopped before approaching the hitch point.
  • If possible, hitch a tractor and implement by backing the tractor into position without having a person positioned between the tractor and the implement.
  • As a backup in case of mechanical failure such as a jack slipping or an overhead support breaking, use blocks to secure any equipment before working under it.
  • Block the wheels of a piece of equipment to prevent it from rolling.

Look around. If you see potential pinch, shear, wrap or crush points on your jobsite, discuss them. Develop ways to prevent injuries that could be caused by these common jobsite hazards.

Download the recording form here.

Care and Maintenance of Safety Vests

Originally published Sept. 13, 2016

Safety vests are designed to make workers visible to traffic and machine operators under any conditions. Vests must meet ANSI’s performance class 2 or 3 requirements. You must wear it if you are:

  • Part of a highway construction or maintenance crew (this includes flaggers);
  • An inspector;
  • Engineering personnel;
  • Part of a survey crew or utility crew; or
  • A responder.

If maintained properly, a vest that is worn on a daily basis has a service life expectancy of approximately six months. A vest not worn daily could be functional up to three years. Do not neglect washing your vest. Dirt can diminish the intensity of the florescent color. You want the color to be as visible as possible.

One manufacturer suggests machine laundering with like colors, in cold water, on the delicate cycle using a mild detergent. Do not use bleach or fabric softener. If possible, wash the garment inside out. Following these instructions will help protect the reflective tape.

Line drying your vest will also extend the life of the reflective tape. If you choose to machine dry, remove the vest from the dyer immediately. Do not let it sit with other hot clothes next to the dryer’s drum. This could also damage the reflective tape.

Your safety vest should be replaced when it becomes faded, torn, dirty, soiled, worn or defaced, or if it is not visible at 1,000 feet day or night. Factors that may cause your vest to wear out more quickly, depending on the amount of use, include:

  • Higher elevations due to increased ultra-violet rays;
  • Hot climates;
  • The types of work you are doing (some jobs are more dirty or strenuous and could be more likely to lead to soiling or tears); and
  • Care and maintenance of your vest.

When it’s time to replace your safety vest, notify your safety compliance officer or supervisor and request a replacement.

The proper care and maintenance of your vest will ensure that you are seen and help you stay safe while on the job. Launder your vest according to the manufacturer’s instructions, and replace it as soon as it is no longer appropriately visible. Your life may depend on it.

Download the recording form here.

Hazardous Energy Control (Lockout/Tagout)

Originally published Aug. 19, 2015

Effective lockout/tagout programs protect employees from serious or fatal injuries that could occur during an unexpected release of energy while servicing machinery or equipment.

Stored energy from many systems (electrical, mechanical, pneumatic, chemical, nuclear, thermal and gravitational) can cause injury.

Let’s discuss what happened when a rock crusher malfunctioned on a worksite, allowing large pieces to pass through the conveyor. A worker stopped the conveyor, climbed onto the catwalk and began pushing the large pieces off the conveyor belt. Another large piece of concrete rolled down the conveyor as the worker reached to remove the first piece, crushing his hand. Other workers reported the conveyor belt back traveled, possibly causing large chunks of debris to dislodge and roll.

This example demonstrates two different forms of energy – gravity and mechanical. Falling or rolling objects and unexpected machine movement can crush or trap you. Machine movement can even pull you into the workings of the machine. The worker in our example should have stopped and locked the machine before dislodging the concrete.

Workers should learn appropriate lockout/tagout procedures and follow them.

  • Look around you. Make sure you understand the different kinds of energy that could harm you. Think about the obvious things, like gravity.
  • Turn off controls.
  • Disconnect machines from their power source.
  • Tell others what you are doing.
  • Dissipate (bleed or neutralize) residual energy.
  • Clear work areas, and warn others before you restart the equipment.

Thousands of injuries occur every year because workers didn’t follow the appropriate lockout/tagout procedures. Don’t be one of the statistics.

Listening Can Save a Life

Originally published on Aug. 16, 2016

Listening is key to building a strong safety culture. It’s as important as your hard hat, gloves, vests, boots, glasses and tools.

Listening to each other

Pay close attention during toolbox talks, foremen meetings, pre-task planning sessions and orientations. Ask questions. Don’t leave the meeting until:

  • You fully understand what is expected of you,
  • You know the possible hazards on the job you will be doing, and
  • You know how to overcome those hazards.

Pay attention to what others will be doing as well. Your safety, and the safety of others, could depend on knowing what will be going on around you.

Listening to the sounds of equipment

Construction sites are filled with various sounds and noises. Be alert to those sounds. Don’t become so accustomed to hearing them or so distracted that you tune them out. Your individual safety could easily depend on your ability to hear approaching danger. Listen for horns, back up signals, spotters, vehicles or warnings from co-workers.

Also keep in mind that, in most cases, a tool or a piece of equipment will signal its pending breakdown by a change in the normal operating sound. Workers on the site should condition themselves to pick up these advance warning signals and fix or replace the tool or piece of equipment before the total breakdown to prevent a possible safety hazard.

Follow these tips to help you listen better and stay alert on the job:

  • Get plenty of rest.
  • Don’t concentrate so hard on the task at hand that you block out the sounds and activity around you.
  • Eat balanced, healthy meals. Overeating or eating the wrong foods can cause you to become drowsy.
  • Do not use alcohol or drugs. Even some prescription drugs can have an effect on your ability to concentrate. If you must take prescription drugs, let your supervisor know. There may be projects that you cannot safely do while taking your prescription.
  • Be sure your work area is well ventilated.
  • Avoid playing radios so loud that you can’t hear what’s going on around you. Using earbuds with individual radios and other electronic devices can prevent you from hearing what’s going on around you.

Download the recording form here.

Jobsite Backing Safety

Originally published Aug. 9, 2016

Every time a machine is put into reverse on a construction site, there is a potential for a dangerous accident. This could result in damage to property, injury to workers or death. Accidents caused by backing vehicles or equipment are preventable if everyone is trained properly.

Here are some tips that could help prevent a backing accident.

  • Provide barricades and warning signs to identify where workers may and may not travel on the site where heavy equipment is in operation, or in congested areas.
  • Plan ahead and avoid backing up whenever possible. You can do this by providing turn-arounds and laying out traffic patterns to eliminate congestion and the need for backing up.
  • If you must back up, use a spotter and agree ahead of time on a stop signal. Spotters should:
    • Wear the appropriate personal protective equipment such as a high visibility vest and hard hat.
    • Walk the area where the backing will occur.
    • Check for hazards and clear the area of people and other equipment.
    • Check overhead clearance limits.
    • Know and use appropriate hand signals. Don’t rely on voice signals alone because work zone noises can make hearing difficult – if not impossible – especially from inside a vehicle.
    • Establish and maintain eye contact with the driver.
    • Stop the driver if you observe hazards or if you’re uncertain about direction.
  • Know your blind spots, and check them before backing up.
  • Know your equipment, and make sure your back-up alarm is working.
  • Even if the back-up alarm is working, blow your horn before you move your vehicle or equipment.
  • Use your mirrors.
  • Never be in a hurry when backing. Take your time.
  • Watch your spotter. If you lose eye contact with your spotter, stop your vehicle.

Pedestrians on a work site should stay alert near heavy equipment.

  • Never walk or stand behind a vehicle or piece of equipment.
  • Never assume a driver can see you.
  • Never try to outrun a vehicle or piece of equipment.

Remember, safety is everyone’s responsibility. Slow down, and follow these simple guidelines to help prevent damage to people or property. If there’s an accident, follow emergency procedures. If there is a “near miss,” report it to your supervisor immediately, so management can investigate and come up with corrective action to prevent similar incidents.

Drivers, spotters and pedestrians are all responsible preventing accidents. Be sure to do your part.

Download the recording form here.