Hydraulic CraneHydraulic CraneSafetySafety

Hydraulic CranesHydraulic Cranes

Can be stationary or attached to Can be stationary or attached to trucks, trains and boatstrucks, trains and boats

Lift capacities in excess of 1,000 Lift capacities in excess of 1,000 tonstons

Hydraulic CranesHydraulic Cranes

Cranes represent the largest Cranes represent the largest cause of injury in construction cause of injury in construction todaytoday

Consider the following accident Consider the following accident statisticsstatistics

Cranes contribute to as many as one Cranes contribute to as many as one third of all construction and maintenance third of all construction and maintenance fatalities and injuries resulting in fatalities and injuries resulting in permanent disabilities permanent disabilities

1.4 deaths per 1,000 operators over the 1.4 deaths per 1,000 operators over the past 45 yearspast 45 years

Operators consist of 13% of all victims Operators consist of 13% of all victims in crane related fatalities in crane related fatalities

From 1980-1992 cranes are associated From 1980-1992 cranes are associated with 306 construction fatalities (16.1% of with 306 construction fatalities (16.1% of all construction fatalities all construction fatalities

Hydraulic CranesHydraulic Cranes

1996 OSHA study of 502 crane related 1996 OSHA study of 502 crane related fatalities identified causes of death asfatalities identified causes of death as

Electrocution (39%)Electrocution (39%) Crane assembly/dismantling (12%)Crane assembly/dismantling (12%) Boom buckling/collapse (8%)Boom buckling/collapse (8%) Crane upset/overturn (7%)Crane upset/overturn (7%) Rigging failure (7%)Rigging failure (7%) Other (27%)Other (27%)

OSHA StandardsOSHA Standards§§1926.550§§1926.550

A thorough, annual inspection of A thorough, annual inspection of the hoisting machinery shall be the hoisting machinery shall be made by a competent personmade by a competent person

All employees shall be kept clear All employees shall be kept clear of loads about to be lifted and of loads about to be lifted and suspended loadssuspended loads

Power LinesPower Lines

Minimum clearance between the Minimum clearance between the lines and any part of the crane or lines and any part of the crane or load shall be 10 feetload shall be 10 feet

Add 0.4 inches for each 1 kV Add 0.4 inches for each 1 kV over 50 kVover 50 kV

Crane SignalsCrane Signals

Hand signals to crane and Hand signals to crane and derrick operators shall be those derrick operators shall be those prescribed by the applicable prescribed by the applicable ANSI standard for the type of ANSI standard for the type of crane in usecrane in use

An illustration of the signals An illustration of the signals shall be posted at the job siteshall be posted at the job site

Crane SignalsCrane Signals

Inspection ItemsInspection Items

Operating ManualOperating Manual Machine GuardingMachine Guarding Swing Clearance ProtectionSwing Clearance Protection High Voltage WarningsHigh Voltage Warnings Boom/Jib Boom StopsBoom/Jib Boom Stops Boom Angle LocatorBoom Angle Locator Boom Hoist DisconnectsBoom Hoist Disconnects Anti-Two Block DevicesAnti-Two Block Devices Power Controlled LoweringPower Controlled Lowering Leveling Indicator DevicesLeveling Indicator Devices

Inspection ItemsInspection Items SheavesSheaves Main Hoist and Auxiliary Main Hoist and Auxiliary

DrumsDrums Main Boom/Jib Boom Main Boom/Jib Boom

ExtensionsExtensions Hooks/Hook BlockHooks/Hook Block HydraulicsHydraulics OutriggersOutriggers Load Rating ChartLoad Rating Chart Wire RopeWire Rope CabCab

Hydraulic CranesHydraulic Cranes

Careful consideration must be Careful consideration must be used when planning a liftused when planning a lift– Identify potential hazards inside Identify potential hazards inside

the cranes radiusthe cranes radius– Make sure hoists/slings are securedMake sure hoists/slings are secured– The operator should be able to see The operator should be able to see

the spotter throughout the entire the spotter throughout the entire liftlift

Hydraulic CraneHydraulic CraneSafetySafety