How the load gets attached: what the slinger is responsible for, what the angle does to the force, and which mistakes recur.
The capacity is on the sling, not here. This section explains the geometry and the method. Working load limits and the difference between hitches are on the equipment’s own marking and in its certificate — see the lifting gear reference and maintenance. Calculate the force with the calculators; read what the sling will take off the sling.
Slinging assumes training (§ 10-3), and equipment must be marked (§ 18-2) and used for what it suits (§ 10-6). See regulations.
Fundamentals
What the slinger is responsible for
Whoever attaches the load decides whether the lift is safe before the crane takes the strain.
Sling angle and force
The geometry that surprises people: the wider the angle, the harder each leg pulls.
Centre of gravity and balance
The hook belongs above the centre of gravity. If it is not, the load will correct it for you.
Technique
Hitch types
Straight, choked and basket — and why the WLL is not the same for all three.
Edges and protection
The edge does not merely cut the sling — it cuts it exactly where the load is highest.
Attachment points on the load
A point that holds the load in place is not necessarily a point that lifts it.
Tag lines and controlling the load
A hand on the load is not control. A line is — if it is used properly.
Hand signals
The principle of standardised signalling — and where the Norwegian chart comes from.
In practice
Trial lift and landing
The two moments that give you an answer — while the load is still low enough.
Common mistakes
The ones that recur — and what they have in common.