balfour beatty construction construction...
TRANSCRIPT
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Balfour Beatty ConstructionBalfour Beatty Construction
CONSTRUCTION EQUIPMENTCONSTRUCTION EQUIPMENT
SUSPENSION SUSPENSION HOISTINGHOISTINGHOISTINGHOISTING
& RIGGING& RIGGING
SUSPENSION HOISTINGSUSPENSION HOISTING& RIGGING& RIGGING
The Qualified & Certified (Forklift) OperatoThe Qualified & Certified (Forklift) Operatorr(Employer Certification)(Employer Certification)
1910 178 Powered Industrial Trucks1910 178 Powered Industrial Trucks1910.178 Powered Industrial Trucks1910.178 Powered Industrial Trucks(i) Operator Training(i) Operator Training
(3) Training program content(3) Training program content
1 1 -- General OperationGeneral Operation2 2 -- Machine Specific OperationMachine Specific Operation3 3 -- Site ConditionsSite Conditions4 4 -- Proficiency DemonstrationProficiency Demonstration55 R i i ( i di d)R i i ( i di d)5 5 -- Retraining (as indicated)Retraining (as indicated)
(6) Certification. The employer shall certify that each operator has been trained and (6) Certification. The employer shall certify that each operator has been trained and evaluated as required by this paragraph (l). The certification shall include the name of the evaluated as required by this paragraph (l). The certification shall include the name of the operator, the date of the training, the date of the evaluation, and the identity of the operator, the date of the training, the date of the evaluation, and the identity of the person(s) performing the training or evaluation.person(s) performing the training or evaluation.
NoteNote: Machine and Operator must be Licensed in DC: Machine and Operator must be Licensed in DC
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Trained / Certified Operator?
Apparently Skilled Operators, but following Safe Operating Procedures??
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Tandem Forklift pic??
Suspension HoistingSuspension HoistingAdvantages Advantages (to forklift suspension(to forklift suspension--hoisting in lieu of cranehoisting in lieu of crane--hoisting)hoisting)
2 fer 1 2 fer 1 –– Can lift from below i.e. “fork lift” Can lift from below i.e. “fork lift” andandfrom above i.e. “suspension hoist.”from above i.e. “suspension hoist.”
Can maneuver in tight locations and on rough Can maneuver in tight locations and on rough terrain.terrain.
Eliminates need for additional hoisting equipment Eliminates need for additional hoisting equipment such as small Rough Terrain (RT) or Carrysuch as small Rough Terrain (RT) or Carry--Deck Deck type cranes.type cranes.
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CarryCarry--Deck CraneDeck Crane
Suspension HoistingSuspension HoistingDisadvantagesDisadvantagesgg
Must carry forks much higher to have load suspended Must carry forks much higher to have load suspended below forks versus load being forkbelow forks versus load being fork--lifted from beneath. lifted from beneath.
Deceptively changes perceived Center of Gravity. Deceptively changes perceived Center of Gravity. Operators tend to forget this and not think as if load is on Operators tend to forget this and not think as if load is on forks even though often suspended far below.forks even though often suspended far below.o s eve t oug o te suspe ded a be ow.o s eve t oug o te suspe ded a be ow.
Overturning of Forklift while suspension hoisting/carrying Overturning of Forklift while suspension hoisting/carrying a load is not unusual.a load is not unusual.
Load radius is increased with lifting boom.Load radius is increased with lifting boom.
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Load -Side to Side
Stability?
Swing /SwayOf Load?
Device -Increased
CenterOf
Gravity?
yRadius / Weight?
••Center of Gravity Center of Gravity –– Must consider as though load is on forks. Must consider as though load is on forks. ••“Load Sway” creates potential for side loading and increased radius.“Load Sway” creates potential for side loading and increased radius.••Lower load by lowering boom can significantly increase radius.Lower load by lowering boom can significantly increase radius.••ForkFork--mounted lifting beams increase radius and load weight, and must mounted lifting beams increase radius and load weight, and must
be factored into load weight and capacity calculations.be factored into load weight and capacity calculations.
Operator of this forklift attempted to “jump free”…Operator of this forklift attempted to “jump free”…
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… and was nearly crushed by the overhead/rollover protection structure.… and was nearly crushed by the overhead/rollover protection structure.
OperatorOperator jumped - fell here. fell here. (Not wearing seat(Not wearing seat--belt) belt)
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Disadvantages continued.Disadvantages continued.Load tends to swing even on level groundLoad tends to swing even on level ground
Suspension HoistingSuspension Hoisting
Load tends to swing, even on level ground. Load tends to swing, even on level ground.
Difficult to steady load without two tagDifficult to steady load without two tag--lines lines or load “bridled” (guyed) to forklift frame.or load “bridled” (guyed) to forklift frame.
Employees attempting to steady load are Employees attempting to steady load are exposed to struckexposed to struck--by injury from the load by injury from the load and/or the forklift.and/or the forklift.
Chain Knot?NOT!
OffOff--CenterCenterLoadingLoading
OffOff--Center loading, no positive connection and no tag line and worker exposedCenter loading, no positive connection and no tag line and worker exposed
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Single Web Sling – Can chafe/cut sling – Load can roll side-to side
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Disadvantages continued.Disadvantages continued.i i f k( )i i f k( )
Suspension HoistingSuspension Hoisting
Rigging to fork(s) can: Rigging to fork(s) can: damage riggingdamage riggingplace torsion (twisting) force on the place torsion (twisting) force on the boom when fork(s) are not centered.boom when fork(s) are not centered.risk rigging and load slipping off risk rigging and load slipping off fork(s) if not positively secured to the fork(s) if not positively secured to the fork(s) or mast.fork(s) or mast.
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Short,eye & eye, wire-rope
sling
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Fork Damaged Web Slings
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Nice HeavyNice Heavy--Duty Chain SlingsDuty Chain Slings
Not likely to be damaged, and Not likely to be damaged, and “mean lean” “mean lean” upup on fork tips, on fork tips, but…but…
Not positively attached, andNot positively attached, and
Not rigged to centerNot rigged to center.
Plan B XPlan B X
Plan A
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Better: Centered fork, short slings, folks tipped-up, but…not positively attached.
Off-Center Loading
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Poor Suspension Hoisting Practices are not Limited to Forklifts
No Latch
No Latch
No Latches
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SuspensionSuspensionHoistingHoisting
Example of Example of GoodGood Rigging Rigging Methods for HoeMethods for Hoe--Hoisting Hoisting equipment.equipment.
Note:Note:••Hardware (for hard wear)Hardware (for hard wear)••Closed padClosed pad--eye on bucketeye on bucket••All positive attachment All positive attachment
connectionsconnections
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Generally good rigging method, but attachment point (backGenerally good rigging method, but attachment point (back--rest) may not rest) may not be strong enough for capacity loadsbe strong enough for capacity loads
Beefy, but shopBeefy, but shop--made? Engineered and marked with weight and capacity?made? Engineered and marked with weight and capacity?
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i ii i
Suspension HoistingSuspension Hoisting
Best Practice OptionsBest Practice OptionsForFor
P Ri i /D iP Ri i /D iProper Rigging/DevicesProper Rigging/DevicesMay Include:May Include:
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Latching Safety Hook(versus sorting hook) necessary for “high-
hoisting.” Properly stowed
Positive connectionStructural member
Close to center
Properly stowed when not in use.
Taper of forks ld llcould allow
device to loosen.
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Safety Attachment
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…One of These.
Bottom Line: Proper Forklift Suspension-Hoisting, or…
BBC SUSPENSION-HOISTING POLICY
No rigging may be directly attached to the forks (tines) of a forklift (Powered Industrial Truck) or the teeth of an earthmoving equipment bucket for the purpose of suspension-hoisting or “Free-Rigging.” (see OSHA Letter of Interpretation - October 22, 1999 regarding “Free-Rigging”)
Rigging used for suspension hoisting must be positively attached to the equipment or to a purpose-designed, suspension-hoisting device with hardware (shackles, latched safety hooks, etc.) at all connection points.
Fork-mounted suspension-hoisting devices must be engineered for use with the intended forklift, and have a load-chart specifically designed for the device.
S d d l d i ht t b k b th O t t b ithi th itSuspended load weights must be known by the Operator to be within the capacity of the equipment in its current configuration. (e.gs. charted capacity, engineered lift)
An Activity Hazard Analysis must be submitted to Balfour Beatty, and authorization to proceed given by Balfour Beatty Project Supervision/Safety prior to complex or unusual suspension-hoisting.