1 June 1978
| Element | Work Processes | Hours |
| A | Preliminary Work-- (1) Learn names and uses of materials and equipment which provide a means of hoisting, positioning, shifting, elevating, skidding, cribbing, and anchoring loads. (2) Learn names, uses, and care of tools used in assembling and maintaining rigging equipment/systems. (3) Learn names, uses, and care of engineer hand tools and tool sets. | 100 |
| B | Care and Handling of Fiber Rope, Wire Rope, Chains and Hooks-- (1) Learn fabrication, classification, characteristics and properties of fiber and wire ropes, and determine their safe working capacities. (2) Inspect fiber/wire ropes for broken strands/wires, kinks, mildew, dirt, worn spots and lack of lubrication. (3) Seize and cut wire and fiber rope. Prepare ropes and fabricate short splice, eye and/or side splice, long splice, crown splice, and strand replacement. Prepare and fabricate the attachment of thimbles, hooks, sockets, clips and baskets. (4) Learn characteristics and properties of chains and hooks, and determine their safe working capacities. Inspect chains and hooks for distortion, stretching, dents, cracks, and worn surfaces. (5) Learn fundamentals and elements for knots, hitches and lashings, and prepare knots for Placement at ends of ropes; joining two or more ropes; making loops; shortening or tightening ropes. Select and use knots and hitches to join and lash timbers, poles, shears and blocks. | 250 |
| C | Rigg and Use Hoisting Equipment-- (1) Learn fundamental types and use of fiber and wire rope or chain slings, and determine their safe lifting capacities. (2) Prepare attachments and fabricate single slings, endless slings, and combination slings. (3) Apply mechanical advantage through use of block and tackle systems. Determine block configuration, rope/chain size, anchorage and supports to lift, lower, or shift loads. (4) Prepare and rig tackle systems systems for use with gin poles, derricks, scaffolds, or shears. Apply vehicle mounted or engine driven winches to tackle systems. (5) Prepare bridging components and sub-assemblies for movement and positioning on piers, pontons or supports. | 1000 |
| D | Rig Anchorage System-- (1) Determine anchorage requirements for lift devices (gin poles; derricks), and for the local ground bearing conditions. (2) Develop and install natural and man-made anchorage systems using trees, stumps, boulders, rock outcroppings, picket holdfasts, deadmen, rock anchors, kedge anchors. (3) Install anchor towers/bridle cables, pipeline suspension cables, aerial tram and cableways, and alpine pathways. (4) Determine guyline requirements and install or use with gin poles, derricks, shears, tram and cableways, ferry/raft/float/suspension bridge anchorages and other expedients for gap crossings. (5) Secure bridge ponton bridle lines; kedge and bailey panel anchor lines. | 1000 |
| E | Lift and Move Heavy and Oversize Loads-- (1) Determine safe capacities for timbers, steel beams, rails or similar members used in the construction of gin-poles, shears, tripods, derricks and cribbing. (2) Determine material and equipment requirements to move, position, and support heavy loads using skids, rollers and jacks. (3) Construct and rig gin-poles, shears, tripods and derricks. (4) Lift, erect, and place components, sections, assemblies and materials for fixed and float bridging, heavy machinery, power generation equipment, tank farms, heating/cooling systems, water pumping/treatment and drainage systems, fortification emplacements, and bulk and oversize cargos for transport. (5) Utilize roller system, cribbing and jacks to launch and/or position bridge stringers, sections, and assemblies; emplace heavy machinery and assemblies. (6) Position, block and secure heavy and oversize loads for over-road/rail transportation in accordance with Interstate Commerce Commission specifications and rules. (7) Recover vehicles and equipment disabled or lost due to adverse weather and ground surface conditions, or through destruction by combat action or accidents. | 1200 |
| F | Erect Scaffolding, Forms, Ramps, Runways, and Ladders-- (1) Determine safe working capacities of timbers, lumber, columns and ropes used for supports and working surfaces. (2) Determine material and equipment requirements for falseworks, forms, work platforms, construction decking and service runs. (3) Erect concrete forms and scaffold systems to facilitate structure/building construction, maintenance or repair. Inspect, level and secure supports and components. | 500 |
| G | Construct Fortifications, Towers, Threstles, Piers, Fixed Bridges, Wharfage and Moorings-- (1) Conduct bridge reconnaissance and provide classifications for planned and existing highway and rail bridges. (2) Determine safe capacities of timbers, piles, steel and concrete beams, rails, and other structural members. (3) Fabricate, erect, install structural members, suspension members, guy members, pilings, bulkheads, mooring anchors, drilling platforms. | 500 |
| H | Welding, Cutting, Brazing, Soldering-- (1) Fabricate slings and attachments; prepare wire ropes for tackle systems and hoist drum reaving. (2) Install/remove temporary bracing, stops, supports, guides. | 250 |
| I | General Maintenance and Repair of Equipment-- (1) Classify and store fiber and wire rope so as to minimize exposure to weather. Replace worn ropes and slings. (2) Replace worn/damaged links in chains. Replace stretched, distorted or cracked chains and hooks. Store with light lubricant in dry and vented area. (3) Inspect and lubricate blocks, jacks and metal rollers. Repair or replace damaged items. (4) Inspect and insure availability of personnel safety equipment: Gloves, belts harnesses, flotation vests, snaplinks, helmets, safety boots, nets and ropes. | 200 |
| J | Specializations-- Specialization in one, or a concentration of categories A-G in excess of shown required hours. | 1000 |
| Grand | Total | 6000 |
Special Instructions: Work processes completed in a state or federally recognized apprenticeship program will be accepted upon presentation of proper documentation to the appropriate service school.
A total of 432 hours of related instruction is required in order to complete this program. Related instruction credit may be awarded individuals registered in the trade of Rigger taken from an accredited institution, providing the courses are similar to the courses taken for a Rigger program in a community college/vocational school.
End of Pamphlet 621-123 Rigger
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