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Working with and around our equipment1


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Working with and around our equipment1

  1. 1. Working With andAround OurEquipmentCANADIAN CRANE RENTALSLTD.
  2. 2. The following is a basic overview of the hazards associatedwith working with and around our equipment.Canadian Crane Rentals strongly advises that their customerstrain their workers in Hoisting and Rigging practices.Canadian Crane Rentals along with the IHSA offer 2 dayHosting and Rigging Basic Training Programs.THINK SAFETY FIRST, PROVIDE YOUR WORKERSWITH JOB SPECIFIC TRAINING IT COULD SAVETHEIRS OR SOMEONE ELSE’S LIFE.
  3. 3. WHY SAFETY SHOULD BEIMPORTANT TO YOU• Accidents disable and kill• Accidents cost• Accidents can be avoided
  4. 4. Crane operation carries with it a greaterpotential for disaster than nearly anyother activity on a construction project.Crane accidents are often the most costlyconstruction accidents when measuredeither in lives or in dollars. All personnelinvolved in crane operations mustunderstand their jobs, theirresponsibilities, and their part in theoverall safety of each lift.
  5. 5. OUR MISSION STATEMENT:Canadian Crane Rentals is dedicated to providing their customers with top qualityequipment, safe, experienced, licensed hoisting engineers and the latest technologyequipment. We do this through our continuous safety trainingprograms, apprenticeship programs, annual inspections and preventative maintenanceprograms
  6. 6. Training is crucial to improvement in worksite health and safetyKnowing how to safely use worksite equipment and materials is one of the mostimportant factors in accident preventionTHINK IT CAN’T HAPPEN TO YOU,THINK AGAIN
  7. 7. 4 Killed Houston Refinery
  8. 8. killed, dozen injured NYC
  9. 9. Operator only 22yrs old died due tooverloading and inexperience, BC
  10. 10. 2 Workers Killed, 5 Injured Miami
  11. 11. In 2010, over 100 died from traumaticinjuries, and more than 57,000 workersin Ontario suffered from injuries orserious illnesses as a result ofdangerous hazards. They all lost timeat work. Some never completelyrecovered or returned to their jobs orfamilies again.
  12. 12. In 2010 alone:• 51 workers per day suffered from overexertion injuries whilelifting, pushing or pulling• 43 workers per day suffered injuries like bruises, fractures orconcussions when struck by equipment• 40 workers per day slipped, tripped or fell, resulting in injuriesranging from minor sprains multiple fractures to paralysis• 12 workers per day were exposed to harmful substances causedconditions like skin disorders or respiratory illnesses• 10 workers per day had a hand, arm leg or their entire bodycrushed by or caught in equipment• 1 worker per day suffered burns or smoke inhalation from fire orexplosionsThese are just a few examples of some of the ways Ontario workersget injured or become ill each day.
  14. 14. • Too often we read of crane and rigging accidents that cause death andextensive property damage.• The number of injuries involving cranes in the USA are estimated at 900to 1,100 per year.• In 2006, there were 72 crane-related fatal occupational injuries in theUSA.• 2008 35 states had 97 crane incidents involving 57 deaths and 127injuries• Labours, Electrician & Welders were among the more likely to be killedin crane-related incidents. Crane operators accounted for only 3fatalities.
  15. 15. SUMMARY OF CONSTRUCTIONCRANE-RELATED DEATHS &INJURIES, JANUARY TO DECEMBER2008*Involves incidents involving 88 mobile cranes, 7tower cranes, 1 gantry crane and 1 crawler craneDEATHS INJURIESCONSTRUCTIONWORKERS54 100BYSTANDERS 4 15RESUCE WORKERS -- 11TOTAL 58 126
  16. 16. Causes of Crane-Related Deaths inConstruction, 1992-20060 20 40 60 80 100 120 140 160 180Overhead power line electrocutionsStruck by crane loadCrane CollapsesStruck by crane boom/jibsFallsStruck by crane or crane partsCaught in/betweenOther causesTotal: 632 Deaths
  17. 17. SUMMARY OF ABOVE GRAPH:• Overhead power lines electrocutions 157 deaths• Struck by crane loads 132 deaths• Crane collapses 89 deaths• Struck by crane boom/jib 78 deaths• Falls 56 deaths• Struck by cranes or crane parts 47 deaths• Caught in/between 30 deaths• Other causes 43 deathsTOTAL DEATHS: 632 BETWEEN 1992-2006
  18. 18. It is imperative that all workers whoprepare, use, and work with or around hoistingand rigging equipment are well trained in bothsafety and operating procedures.MOST CRANE AND RIGGINGACCIDENTS CAN BE PREVENTED BYFIELD PERSONNEL FOLLOWINGBASIC HOISTING AND RIGGINGPRACTICES
  20. 20. The crane operator is generally responsible for thesafety of the operation as soon as the load is liftedclear of the ground. Whenever there is reasonablecause to believe that the lift may be dangerous orunsafe, the operator must refuse to proceed untilthe concern has been reported to thesupervisor, any hazard has been corrected, andsafe conditions have been confirmed.
  21. 21. Main Causes of WorkerDeaths, by Frequency• Electrocutions• Struck by craneload• Crane collapse• Struck by fallingboom/jib
  22. 22. Why Workers Died25%10%13%52%1992-2006Operating CraneOtherWorker on foot touching craneWorker on foot touching/ guidingload cablesNUMBER OF DEATHS: 157Overhead Power Line Electrocutions
  23. 23. Why Workers Died14%32%7%15%32%1992-2006Flagging/ directing/ guidingLoading/ unloadingOperating CraneOther crane-related workWorker not involved with craneNumber of deaths: 132Struck By Crane Loads
  24. 24. Why Worker Died12%9%14%15%50%1992-2006OverloadingCrane load/ boom shiftedCrane cables/ rigging/ stabilizersbrokeUneven/ unstable or icy surfaceOther/ unknown causesCrane CollapsesNumber of Collapses: 81Number of Deaths: 89
  25. 25. Why Workers Died56%22%13%9%1992-2006Dismantling boomOtherBoom/ boom cable brokeLengthening boomNumber of Deaths: 64Struck by Falling Booms/Jibs
  27. 27. HUMAN ERROR IS THE MOSTCOMMON CAUSE OF CRANEACCIDENTSIt is imperative that all workers who prepare, use, andwork with or around hoisting and rigging equipmentare well trained in both safety and operatingprocedures.
  28. 28. Top Hoisting and Rigging Hazards & Causes ofAccident• Load Weight unknown• Exceeding capacity of equipment• Defective equipment• Weather- high winds• Visibility• Powerlines #1 cause of fatalities• Improperly rigged load• Uncontrolled motion• Overloading landing area• Load not blocked when landed• Pinch Points• Poor Planning• Lack of training and instruction
  29. 29. The single most important precautions in rigging and hoisting isto determine load weight before attempting any liftDETERMINING LOAD WEIGHTSThis information can be obtained through• Shipping papers• Design plans• Catalogue data• Manufacture’s specificationsWhen the above information is not available contractors will need to calculate the loadweight.Good references for helping you determine load weights are the following:• Hoisting and Rigging Safety Manual• Rigger’s Pocket GuideBoth are available through the IHSA or our office
  30. 30. EXAMPLE: CALCULATING WEIGHTSOLID STEEL CYLINDER5 FTVolume = π r² x h= 3.14 x r x r x lengthWeight= 3.14 x r x r x L x unit weight (foundin the hoisting and rigging manual & rigger’s pocketguide)= 3.14 x 2.5’ x 2.5’ x 15’ x 490 (weightof steel)= 144, 243.75lbs
  31. 31. EXAMPLE: CALCULATING WEIGHT6” diaWall thickness3/8”Circumference= d= 3.14 x .5 ft. = 1.57ftArea= Circumference x length= 1.57 x 21= 32.97Weight= area x wall thickness x unit weight= 32.97 x 3/8” x 40lbs (weight of steel plate/ sq”)= 494.55 lbs
  32. 32. LOAD RATING CHARTSOperators are trained to NEVER exceed their cranes manufacturer’s load ratings. Thestipulations noted in these charts must always be observed.Ratings noted in these charts are based on a number of conditions such ashydraulic, mechanical, structural, and/ or stability.All our cranes are equipped with safe load indicators which are designed to alert ouroperators if the lift is exceeding the safe operating range of the crane. Our operators willrefuse to conduct a lift that exceed their rated charts.
  33. 33. DEFECTIVE EQUIPMENTDefective equipment can be extremely dangerous. Malfunctions or defects onequipment that go uncorrected for long periods of time can create enormous hazards..Routine maintenance is essentially important for the safety of everyone working withand around heavy equipment. Canadian Crane has a rigorous routine maintenanceprogram to help ensure our equipment runs effectively and efficiently on all ourcontractors job sites. All our operators are required to complete daily crane logs thatare available on-site for contractors to review. We have deficiency lists that operatorscomplete weekly and every crane is serviced bi-weekly. We also hire professionalengineers annual to certify all our cranes to ensure its structural integrity.
  34. 34. WEATHERHigh wind speeds affect both the crane and the load, reducing the ratedcapacity of the crane. Never make a full capacity lift if it’s windy.All crane manufactures specify in the load chart that chart ratings must bereduced under windy conditions, they also recommend a shut-down windvelocity. Typically safe in-service winds are anything under 30mph for mobilecranes, if the wind exceeds that it is advisable to stop operations. Although agreat deal of discretion should be used on lifts under moderate wind conditionsof 20mphIt is advisable to avoid handling loads that present large wind-catchingsurfaces. The results could be loss of control of the load and crane even thoughthe weight of the load is within the normal capacity of the crane.Use the table on the next page to understand details concerning maximumpermissible wind velocities.
  35. 35. Beauford Scale Designation MPHs K/H Inland0 Calm 0-0.2 1 No wine, smoke rises vertically1 Light Air 0.3-1.5 1 Wind direction shown by smoke but not by wine vanes2 Light Breeze 1.6-3.3 6-11 Wind felt on face; leaves rustle, ordinary vanes movedby wind3 Gentle Breeze 3.4-5.4 12-19 Leave and small twigs in motion. Wind extends a lightflag4 Moderate Breeze 5.5-7.9 20-28 Raises dust and loose paper, small branches are moved5 Fresh Breeze 8-10.7 29-38 Small tress in leaf begin to sway. Crested wavelets formon inland waters6 Strong Breeze 10.8-13.8 39-49 Large branches in motion, telegraph wire whistle,umbrellas used with difficulty7 Moderate Gale 13.9-17.1 50-61 Whole trees in motion, inconvenient to walk againstwind8 Fresh Gale 17.2-20.7 62-72 Breaks twigs off trees9 Strong Gale 13.9-17.1 75-88 Slight structural damage to buildings. Chimney potsand shingles removed.10 Whole Gale 24.5-28.4 89-108 Trees uprooted, considerable structural damage tobuildings11 Storm 28.5-32.6 103-117 Rarely experienced inland, accompanied by widespreaddamage12 Hurricane 32.7-36.9 118-133 Devastation occursWIND FACTORS
  36. 36. OTHER WEATHER FACTORS:LIGHTENING: Pay attention to the daily forecast so you know what to expectduring the day. Also pay attention to early signs of thunderstorms: high winds, darkclouds, rain, thunder or lightning. In the case of a lightening storm, the crane operatorwill immediately stop work and lower their boom. The rule of thumb is to wait 30minutes after the last audible thunder or visible flash of lightening to commenceoutdoor work activities.FACT• 85% of the lightning strike victims are children and young men (10 to 35) engagedin work & recreation.• 70% of strikes happen between June & August• 25% of lightning victims dieVISIBILITY: When the visibility of the riggers or hoist crew is impaired bysnow, fog, rain, darkness, or dust strict supervision must be exercised and ifnecessary, the lift should be suspended.COLD WEATHER: Be very careful to avoid impact (shock) loading
  37. 37.“BIG BLUE” the tallest crane in the world (almost 600 feet) fell atthe sports stadium under construction in Milwaukee of the baseballstadium Miller Park at about 5:15 P.M. The 450 ton load coupledwith 30 mile an hour winds caused the gigantic tower crane’sintegrity to be compromised.This accident is considered one of the largest crane accidents inhistory considering the loss of life, injury and cost of damage.
  38. 38. POWER LINESNearly 30% of the approximately 350 electrical-related fatalities that occur each yearin the USA involve crane and overhead power lines. It is the largest single cause offatalities associated with cranes.Here’s what contractors need to know: Look up!!! Pre-Job Plan, take care of the problem prior to the crane’s arrival toprevent delays and prevent accidents. (Shut power off, more power lines, insulate orrubberize lines) KEEP YOUR DISTANCE Use signallers (if there’s a possibility of a crane encroaching within the minimumpermitted distance assign a signalman) Use warning devices Avoid using tag lines (Unless it is necessary to prevent the load from spinning intothe min distance to a powerline) Develop a written plan and communicate it with everyone working on-site
  39. 39. POWER LINESKEEP YOUR DISTANCENormal phase-to-phase voltage rating Minimum Distance750 or more volts, but no more than 150,000 volts 3 metresOver 150,000 volts, but no more than 250,000 volts 4.5 metresMore than 250, 000 volts 6 metresBeware: The winds can blow power lines, hoist lines, or your load.This can cause them to cross the minimum distance
  40. 40. WHAT IF YOU HIT A POWER LINE Stay on the equipment- Don’t touch the equipment and the ground at the same time.Touching anything in contact with the ground can be fatal Keep others away- No one else should touch the equipment or its load Break contact- If possible while remaining inside the machine- the operator shouldtry to break contact by moving the equipment clear of the wires. Call the local utility- Get someone to call the local utility for help Report the contact- Report every incident of electrical contact to the local electricalutility they’ll check for damage that could cause the line to fail later Inspect the crane- The crane must undergo a complete inspection for possibledamage caused by electrical contact.BAIL-OUT PROCEDUREIf you have to leave the machine, jump clear. NEVER be in contact with the ground amachine at the same time. The ground is hazardous so the worker should jump withtheir feet together, maintain balance and shuffle slowly across the affected area. DONOT take large steps because it is possible for one foot to be in a higher voltagearea, the difference can kill.
  41. 41. RIGGINGAs mentioned earlier, all too often we read of crane and rigging accidents that causedeath and extensive property damage. Most crane and rigging accidents can beprevented by filed personnel following basic safe hoisting and rigging practices.Many types of cranes, hoists, and rigging devices are used for lifting and movingmaterials around projects. The mission of our safety program is to maintain a safe andhealthy environment for Canadian Crane Rentals employees, Contractors, Subcontractsand visitors. Therefore it cannot be overemphasized that only qualified and competentindividuals shall be designated to operate these devices.The rigger must be trained, experienced and competent. They must know how to• Establish weights• Judge distances, heights and clearances• Select tackle and hardware suitable to the load• Rig the load safely• Be knowledgeable with hand signals
  42. 42. RIGGING CONT’DGENERAL RIGGING SAFETY:Only select rigging equipment that is in good condition. All rigging equipment shall be inspected annually; defective equipmentis to be removed from service and destroyed to prevent inadvertent reuse. The load capacity limits shall be stamped or affixed toall rigging components.The following types of slings shall be rejected or destroyed:Nylon Slings with• Abnormal wear• Torn stitching• Broken or cut fibers• Discoloration or deteriorationWire-rope slings with• Kinking, crushing, bird-caging, or other distortions• Evidence of heat damage• Cracks, deformation, or worn end attachments• Six randomly broken wires in a single rope lay• Three broken wires in one strand of rope• Hooks opened more than 15% at the throat• Hooks twisted sideways more than 10deg. From the plane of the unbent hookAlloy steel chain slings with• Cracked, bent, or elongated links or components• Cracked hooksDo not use shackles, eye bolts, turnbuckles, or other components that are damaged or deformed.
  43. 43. RIGGING CONT’DWhen rigging a load the rigger must:• Determine the weight of the load DO NOT GUESS• Determine the proper size for slings and components• Do not use manila rope for rigging• Make sure that shackle pins and shouldered eye bolts are installed in accordance with themanufacturer’s recommendations• Make sure that ordinary (shoulderless) eye bolts are threaded in at least 1.5 times the boltdiameter• Use safety hoist rings (swivel eyes) as a preferred substitute for eye bolts whereverpossible.• Pad sharp edges to protect slings. Remember that machinery foundations or angle-ironedges may not feel sharp to the touch but could cut into rigging when under several tons ofload. Wood, tire rubber, or other pliable materials may be suitable for padding• Do not use slings, eye bolts, shackles, or hooks that have been cut, welded, or brazed• Install wire-rope clips with the base only on the live end and the U-bolt only on the deadend. Follow the manufacturer’s recommendations for the spacing for each specific wiresize.• Determine the center of gravity and balance the load before moving it.• Initially lift the load only a few inches to test the rigging and balance.
  44. 44. RIGGING CONT’DSLING CONFIGURATIONS:The single vertical hitch can be used to support a load by a single vertical part or leg of thesling. The total weight of the load is carried by a single leg; the angle of the lift is 90° andthe weight of the load can equal the maximum safe working load of the sling and fittings.The end fittings of the sling can vary, but thimbles should be used in the eyes. This slingconfiguration must not be used for lifting loose or lengthy material, or anything that will bedifficult to balance. It should only be used on items equipped with lifting eyebolts orshackles. The single vertical hitch provides absolutely no control over the load because itpermits rotation.
  45. 45. RIGGING CONT’DTwo, three or four single hitches can be used together to form a bridle hitch for hoistingan object that has the necessary lifting lugs or attachments. A bridle hitch can be used witha wide assortment of end fittings. It provides excellent load stability when the load isdistributed equally among the legs, the hook is directly over the center of gravity of theload, and the load is raised lever. To distribute the load equally, it may be necessary toadjust the leg lengths with turnbuckles. The sling angles must be carefully determined toensure that the individual legs are not overloaded.
  46. 46. RIGGING CONT’DUnless the load is flexible, it cannot be assumed that a three- or four- leg hitch will safely lift aload equal to the safe load on one leg multiplied by the number of legs. Each leg may not becarrying its share of the load; with slings having more than two legs and a rigid load, two ofthe legs may be taking most of the load while the others are only balancing it.
  47. 47. RIGGING CONT’DSINGLE BASKET HITCHA single basket hitch can be used to support a load by attaching one end of a sling to ahook, wrapping the sling around the load, and securing the other end to the hook. Itcannot be used on a load that is difficult to balance because the load can tilt and slip outof the sling. Loads having inherent stabilizing characteristics will be automaticallyequalized with each leg supporting half the load. Ensure that the load does not turn orslide along the rope during a lift, because both the load and rope will be damaged.
  48. 48. RIGGING CONT’DDOUBLE BASKET HITCHA double basket hitch consists of two single basket hitches passed under the load insuch a way that it is properly balanced. The legs of the hitches must be far enough apartto provide balance but not so far apart that excessive angles develop or the legs tend tobe pulled in toward the center. On smooth surfaces, both sides of the hitches should besnubbed against a step or change of contour to prevent the rope from slipping as the loadis applied. The angle between the load and the sling should be approximately 60° orgreater to avoid slippage.
  49. 49. RIGGING CONT’DDOUBLE-WRAP BASKET HITCHA double–wrap basket hitch is a basket hitch that is wrapped completely around theload, rather than just supporting as does the ordinary basket hitch. Like the doublebasket hitch, it can be used in pairs. The double-wrap basket hitch is excellent forhandling loose material, pipe, rod or smooth cylindrical loads because the rope orchain is in full 360° contact with the load and tends to draw it together.
  50. 50. RIGGING CONT’DSINGLE CHOKER HITCHA single choker hitch forms a noose in the rope that tightens as the load is lifted. Becauseit does not provide full 360° contact with the load, it should not be used to lift loosebundles form which material can fall or loads that are difficult to balance. The singlechocker can also be doubled up (not to be confused with the double chocker hitch) asshown, to provide twice the capacity or to turn a load.
  51. 51. RIGGING CONT’DDOUBLE CHOKER HITCHA double choker hitch consists of two single chokers attached to the load and spreadto provide load stability. Like the single choker, they do not grip the loadcompletely, but because the load is less likely to tip, they are better suited for handlingbundles, pipes, rods, etc.
  52. 52. RIGGING CONT’DDOUBLE-WRAP CHOKER HITCHA double-wrap choker hitch is one in which the rope or chain is wrappedcompletely around the load before being hooked into the vertical part of the sling.The hitch is in full contact with the load and tends to draw it tightly together. It canbe used either singly on short, easily balanced loads, or in pairs on longer loads.
  53. 53. RIGGING CONT’DSling Angles The rated capacity of a sling depends on its size, its configuration, andthe angles formed by the legs of the slings with the horizontal. A sling with two legsthat is used to lift a 1000-pound object will have a 500-pound load in each leg whenthe sling angle is 90°. The load in each leg will increase as the angle is decreased, andat 30° the load will be 1000 pounds in each leg.Sling angles should be greater than 45°.Those approaching 30°should beconsidered extremely hazardous andavoided at all costs.
  54. 54. CENTRE OF GRAVITY• The point at which the load will balance• Whole weight of the load is considered concentrated at this balance point• When suspended from a point, the load tends to move so that the center of gravelis directly below the point of support• Make sure the center of gravity is located directly below the hoisting hookWhen the centre of gravity is closer to one sling attachment point than the other, thesling legs must be of unequal length, which means that their angles and loads willalso be unequal.When a lifted load tilts and rigging is not corrected, the tension will sharply increaseon one sling leg and decrease on the other. If any load tilts more than 5 after it islifted clear of the ground it should be landed and rigged over again.
  55. 55. RIGGING CONT’DATTACHING THE LOAD• When attaching the load, you must first determine which hitch to use. A hitch is the waythe sling is configured to connect the load to the hook.• The basket hitch is the most commonly used type of hitch. To make a basket hitch, put thesling around the load and then put both ends of the sling over the hook.• To create a choker hitch, wrap the sling around the load and place one end of the slingthrough the other. Then tighten it down and secure the load.• If a regular choker hitch won’t keep the load tight enough, use a “double wrap” chokerhitch. Wrap the sling around the load twice, then loop the end through the opposite endshackle and attach it to the hook.• Vertical hitches are used on loads equipped with lifting attachments, such as eyebolts. Withthis hitch, the hoist hook is first connected to the sling and the sling is then attacheddirectly to a lifting attachment on the load.• Like slings, choosing which hitch to use is affected by the weight, size and shape of theload.• You should always use some type of sling no matter what type of job you are doing. Neverwrap the hoist rope itself around a load because the rope, hook or load could be damaged.
  56. 56. RIGGING CONT’DSLING ANGLES• When two slings are needed to balance the load, you need to pay particularly closeattention to the sling angles (the angles between the slings and the load itself).• A sling angle of 90 degrees is ideal because it puts the least stress on the load. As the slingangle decreases the force exerted on the sling increases.• For example, if you are using two slings to lift a load that weighs 2,000 pounds at slingangles of 90 degrees, each sling would have to support half of the weight (1,000).• Your supervisor can give you a chart that lists the “sling angle factor” for various slingangles. By multiplying the sling angle factor by half of the weight, you can determine whatthe weight capacity of each sling must be if you are using two slings.• If the sling angles are 60 degrees, the sling angle factor increases to 1.155. Multiply this byhalf the load’s weight of 1,000 pounds and you then know that each sling must be rated for1,115 pounds at this angle.• Sling angles of less than 45 degrees should be avoided altogether because they put anunsafe amount of stress on the slings.
  57. 57. RIGGING CONT’DLIFTING & MOVING THE LOAD• Keep in mind that cranes are only intended to lift loads straight up and down. If you lift a loaddiagonally, you could cause structural damage to the crane.• Make sure the crane is directly over the load before you lift. Verify that the load is rigged above itscenter of gravity.• Make sure the weight of the load plus all of the equipment that you are using does not exceed thecrane’s weight capacity. Check the load chart or other documentation that will tell you the crane’slimits.• As you lift, pay attention to the angle of the load. It should not exceed 10 degrees from horizontal.• The next step is to move the load. Moving the load is often easier if you use “taglines”. Taglinesare ropes that can be used to control and position a load.• Put tension on the tagline to prevent the load from spinning while the crane is in motion.• Direct the load to its designation. Maneuver the load into tight places.• Be sure to ask the crane operator to use very slow speeds when traveling with a load. This will helpyou safely guide it to its destination and help the operator to see where he is going.• Make sure the crane operator stops periodically so that you can check to see that everything is stillsecure. Watch out for sudden starts and stops that could unbalance the load.• To prevent injury, be careful not to direct a load over people or allow anyone to walk under it.
  58. 58. RIGGING CONT’DLOWERING/LANDING THE LOAD• Never leave a suspended load unattended. Always have the crane operator land theload when it gets to a stopping point or its final destination.• Make sure to help the crane operator to lower the load slowly. Direct the operatorto stop a few inches from the landing point to verify that the load is secure and thatnothing is in its path.• Then have the load lowered the rest of the way.• After the load has been landed, remove the slings from the hook and return them tothe proper storage place.• If the slings are left on the hook, they could snag on other objects when the crane ismoved.• Make sure that the operator raises the hook high enough that no one will hit his orher head.
  59. 59. TAG LINEOHSA179 (1) If a worker may be endangered by the rotation or uncontrolledmotion of a load being hoisted by a crane or similar hoisting device, one ormore guide ropes or tag lines shall be used to prevent the rotation oruncontrolled motion(2) No guide rope or tag line shall be removed from a load referred to insubsection (1) until the load is landed and there is no danger of it tipping,collapsing or rolling.
  60. 60. 50% of all mobile crane accidents are the result ofmistakes made when the crane was being set upContractors that require cranes are as responsible for itssafe operation as the operatorWorking areas need to be prepared for the crane. Ifthe working area is unsafe the operations of the cranewill be unsafe no matter how skilled or experiencedthe operator is.
  61. 61. OUTRIGGERSAs mentioned earlier, stats show that 50% of crane accidents occurbecause the mobile crane or outriggers are not set-up properly.Specific hazards that can cause or contribute to failure or collapseinclude:• Failure to extend the outriggers fully• Not extending all outriggers• Failure to get completely “off rubber”• Not accounting for poor ground conditions• Failure to level craneWhat can you as a contractor do to prevent outrigger failure?• Be sure you know or can calculate the weight of each load properly.• Check ground conditions and blocking materials frequently to makesure crane remains on firm stable ground• Provide a level spot for the crane to set up• Allow crane proper clearance to fully extend all outriggers
  62. 62. DANGER AREASSWING RADIUS–PINCH POINT CLEARANCEWhen the crane is in operation, maintain a minimum clearance of 30inches (76 centimeters) between the swing radius of the cranesuperstructure or counterweights and any stationary object. Whenthis clearance cannot be maintained, isolate pinch point hazards withbarricades or safeguards. Where possible, flag or barricade theswing radius.
  63. 63. NEVER walk or work under asuspended loadNEVER load the crane beyondthe specifications of the load ratingchart.Total load always includes the lifted itemand the rigging, crane hook, block andload line may also be considered part ofthe load.
  64. 64. THINGS TO THINK ABOUT WHEN PREPARING THE SITE FORA CRANE:• Can the machine get onto the site?• What path will the crane have to take?• Is there room for the crane to maneuver in it’s designated area?• Will an area be designated and roped off?• Has the crane’s position been identified for every lift?• Are operating areas, graded, compacted, and levelled?• Will clearance and visibility be problems where other cranes, hoists, orequipment will be operating?• Will crane operating areas be away from public traffic and access?• Have operators been warned and have provisions been made to keepcranes from working within a boom’s length of powerlines withouta) Shutting off powerb) Having powerlines insulated orc) Providing signallers to warn the operator whenapproaching limits
  65. 65. Signallers must be competent and capable of directing the crane andload to ensure safe, efficient operation. Knowledge of the handsignals for hoisting is a must, as it is for our operators.Signalling is an important part of crane operation, but is often nottreated with the respect it deserves. Signallers must be usedwhenever• The operator cannot see the load• The operator cannot see the load’s landing area• The operator cannot see the path of travel of the load or the crane• The operator is far enough away from the load to make thejudgement of distance difficult• The crane is working within a boom’s length of the approachlimits to powerlines or electrical equipment.SIGNALLING
  66. 66. The slinger/ signaller is responsible for the attaching anddetaching of loads to and from the crane load liftingattachment and ensuring that the correct accessories are usedfor that operation in accordance with the planning of theoperation.SIGNALLING2- way radios can be of valuefor almost all signallingoperationsThe Signaller must stay clear ofthe intended path of travel andshall be in full view of theoperator
  67. 67. TANDEM LIFTSLifts involving two of more cranes are complex operations requiring considerableskill and planning. As a result, multiple crane lifts (tandem lifts) must be plannedand carried out under the supervision of a competent person.The competent person, must develop and communicate a detailed lift plan whichcontains, but is not limited to, the following: Crane positioning Rigging Lift Sequence Movement of the load (the longest radius of each crane for the complete operation mustbe measured exactly) Load weight and distribution Boom lengths and angles Environmental consideration Rated capacity of each crane for the whole operation (no crane should be loaded to morethan 75% of its net capacity)Canadian Crane Rentals will use a critical lift plans for every tandem lift to help ensure safeworking procedures regarding the lift are communicated to everyone on-site.
  68. 68. CRITICAL LIFT PLANSWithout sufficient planning and supervision, crane accidents can happen. If something goes wrongon a construction site involving a crane, the consequences are likely to be disastrous. As mentionedabove, accidents involving cranes often result in severe damage to property with risk of injury orloss of life.Good planning protects cranes and the people working around them. Before making a critical lift, alift plan should be prepared by the site supervisor, rigger, and crane operator and communicated toeveryone onsite.The plan should be documented in writing and include the following information:• Description of the lift• Crane position and configuration• Lift height• Boom length and angle• Size of weight of the load• Percent of crane’s rated capacity• Personnel involved• Rigging plan• Communication method• Ground Communication• Environmental conditions• Inspection procedures• Procedures for hoisting personnelWE HAVE GENERIC CRITICAL LIFT PLANS IN EVERY CRANE
  69. 69. ELEVATED WORK PLATFORM (MANBASKET WORK)Hoisting a personnel in a manbasket should be used when there is nosafer, practical conventional means of access to an elevated work area.Contractors using manbasket must know the following:• The crane cannot be used to hoist material while the manbasket is being used tosupport a worker.• Every worker using the basket must wear a full body harness with shockabsorber and be trained in Fall Arrest• Means of communication must be determined between the workers and operator(hand signals or radios are ideal)• Emergency rescue plan drawn up and communicated in writing to all workersinvolved in the hoisting operation.• Before beginning any hoisting operation under this section, the constructor shallnotify by telephone an inspector in the office of the MOL nearest the project.• A critical lift plan must be used when using a suspended manbasket (we supplythe lift plan)***Canadian Crane Rentals calls in every manbasket job to the MOL prior to beingdispatched out.For more information on elevated work platforms see section 153 of the OHSAConstruction Regs.
  70. 70. IN ORDER TO DISPATCH THE RIGHT CRANE FOR YOUR JOB, BEPREPARED TO ANSWER THE FOLLOWING QUESTIONS: Tell us what the object is we’re lifting (dimensions are a great help!) Tell us the weight of the object (this is extremely important) Description of the job, what are we doing? Be prepared to tell us the distances (how far, how high, how close can we sit, etc.) Are there hydro wires on site? Special rigging required (chokers, spreader bars, belts?) Is a manbasket required (we don’t bring one unless a customer request it) Job location and job/rental date and time Site Supervisors Name and # (this helps us notify the site if we have an unexpectedissue arise)
  71. 71. Canadian Crane Rentals is dedicated to providing their customers with top quality, safe,licensed Hoisting Engineers and the latest, leading edge technology equipment. We do thisthrough our continuous job specific safety training programs, subcontractor safety programs,safety talks, safety groups, recognition award programs, apprenticeship programs, annualinspections and preventative maintenance programs. We offer our customers 3 generationsof knowledge, experience and skills.We have worked hard throughout the years to develop a great working rapport with ourcustomers & have built a strong reputation for being reliable, knowledgeable & safe.We are also dedicated to helping keep the employees of our customers safe. Most crane andrigging accidents can be prevented by field personnel following basic hoisting and riggingpractices.We thank you for taking the time to review our safety program for working with and aroundour equipment.
  72. 72. Each month we email our customers safety talks specific to working with ourequipment. Please let us know if you wish to be added to our monthly safetytalks email list.We also offer our customers safety policies for hoisting and rigging and workingwith and around cranes. Please let us know if we can assist you with any othersafety policies or procedures specific to working with and around our equipment.
  73. 73. THANK YOU!
  74. 74. BIBLIOGRAPHY:1. Hoisting and Rigging Safety Manual: CSAO2. Safety Manual For Operating and Maintenance Personnel: Association of EquipmentManufacturers.3. Hoisting Engineer Training Materials: Durham College4. Hoisting and Rigging Basic Safety Training Program: CSAO5. Construction Health and Safety Manual: CSAO6. Crane Accidents: WSIB: Prevent-It.ca8. U.S. Bureau of Labour Statistics: