Rigging course details

Determining load weight - introduction
  •   Understand why it’s important to know the weight of a load
  •   Choose acceptable methods to obtain load weight
  •   Avoid unacceptable methods to obtain load weight
  •   Tips for easier and safer load weight calculations
Rigging gear general handling and safety
  •   Methods of handling rigging gear
  •   Safe practice in rigging gear selection
  •   Safe work practices during the rigging process
  •   Identify hazards to rigging gear
  •   Prevent rigging gear damage during use
  •   Handling hoist and "below the hook" equipment
Rigging gear inspection
  •   Mandatory certification of rigging equipment
  •   Types of inspections
  •   Frequency of inspections
  •   Criteria for inspection
  •   Rejection criteria
Determining load weight by calculations
  •   Calculate area and volume of basic objects
  •   Understand and use the standard weight table
  •   Calculate weight of basic and complex shapes by area and volume
Selection and use of rigging hardware
  •   Identify usage limitations for rigging hardware
  •   Identify correct installation procedures of rigging hardware
  •   Determine rated load of rigging hardware in various configurations
Selection and use of slings
  •   Limitations of slings
  •   Correct methods of attaching slings to hook
  •   Identify incorrect / unsafe sling-hook attachments
  •   Understand the importance of sling eye length to hook diameter
  •   What is included sling angle?
Sling angle stress and rigging methods
  •   Understand and define sling angle stress
  •   Why sling angle stress must be factored in calculations
  •   Use the sling angle stress factor table
  •   Calculate the sling angle stress
  •   Determine sling length and minimum rated capacity for lifts
  •   Understand different methods of top and bottom lift
Distribution of load weight
  •   Understand center of gravity, moments and balance point
  •   Importance of CG location
  •   Calculate CG location
  •   Know what determines weight distribution to attachment points
  •   Importance of weight distribution to attachment points
  •   Understand and apply “Two leg carries load” rule
  •   Calculate weight distributed to attachment points
Diameter to diameter ratio
  •   Explain meaning of “D” to “d” ratio (D/d)
  •   Determine a sling’s D/d ratio
  •   Use D/d to determine sling efficiency
  •   Use efficiency to calculate the sling’s rated load
  •   D/d ratio for chain and synthetic slings