Anchor (bow) type and Chain (D-shape) type. Screw pin shackles are the most common in Rigger 3 operations.
You must account for corrosion allowance and internal packing (catalyst, etc.) as live loads.
The examiner will watch your physical inspections. Verbally state what you are looking for (e.g., "Checking this shackle for cracks, pin deformation, and 10% wear") to show confidence and thoroughness.
Sling Tension=Load WeightNumber of Slings×Load Angle Factor (LAF)Sling Tension equals the fraction with numerator Load Weight and denominator Number of Slings end-fraction cross Load Angle Factor (LAF) The is calculated as:
Authorized to handle critical lifts, tandem lifts, and loads up to 60 tons. rigger level 3 aramco notes
Inspecting all rigging hardware and slings before every use.
To pass the certification exam, you must be proficient in the following technical areas:
The crane hook must always be positioned directly above the load's Center of Gravity before lifting.
: Identifying and inspecting common lifting accessories including slings (wire rope, web, chain), shackles, and hooks for defects like wear or damage. Anchor (bow) type and Chain (D-shape) type
The checklist includes:
Always use a tagline to control the load, especially during high winds. C. Signaling Only one rigger should give signals to the crane operator.
: Distributes load across two parts of the sling, providing maximum capacity and stability.
Disclaimer: Always refer to the latest Saudi Aramco Engineering Standards (SAEP) and project-specific LIFTRA permits, as specifications may vary between departments (e.g., Jazan vs. Uthmaniyah). The examiner will watch your physical inspections
Only one qualified rigger must give signals to the crane operator at any given time.
The written test will provide load charts. Always verify whether the chart lists values for metric tons, short tons, or pounds.
Melting, charring, or weld splatter on any part of the sling surface.
Just leveled up my certification to Rigger Level 3 with Aramco standards. ✅