RI Hoisting Engineer cheat sheet

OSHA 1926.1412 sets four crane inspection tiers: shift (before each shift), monthly, annual comprehensive, and post-assembly; the last three require written, dated records kept on site.

Running wire rope is removed from service at 6 or more randomly distributed broken wires in one lay, or 3 broken wires in one strand within one lay (OSHA 1926.1413).

Leveling and setup: the crane must be set within the manufacturer's grade tolerance (1 percent is the commonly cited maximum) with outriggers, floats, or blocking fully deployed per the load chart.

Safety devices that must be functional before lifting: anti-two-block, boom angle/length indicator, rated capacity limiter or load moment indicator, level indicator, and outrigger position indicator.

A malfunctioning safety device takes the crane out of service: stop operation, lock and tag the control, and do not return to work until the device is repaired and function-tested.

Hoisting brakes must hold at least 125 percent of the rated load; brakes are tested after repair or adjustment and any drift or slip removes the unit from service.

Minimum approach to energized power lines is 20 ft for lines up to 350 kV and 50 ft above 350 kV, unless the utility confirms de-energizing, grounding, and visible isolation (OSHA 1926.1408).

A fire extinguisher rated at least 5 BC must be accessible in the cab or on the crane, and the hook must have a latch that closes the throat opening.

Two-leg bridle tension per leg: T = (W / 2) / sin of the horizontal sling angle; the multipliers are 1.155 at 60 degrees, 1.414 at 45 degrees, and 2.0 at 30 degrees.

Net capacity = gross chart capacity minus the weight of the hook block or ball, jib, slings, shackles, spreader beams, and every other below-the-hook attachment.

ASME B30.9 design factors: chain slings 4:1, wire rope slings 5:1, synthetic web slings 5:1, metal mesh slings 3:1; WLL = breaking strength divided by the design factor.

Load moment is load weight times radius from the rotation center; the rated load moment must not be exceeded at any point during the lift, including travel.

Chart capacity changes with radius, boom length, boom angle, counterweight and outrigger configuration, and the quadrant of operation (over front, side, or rear).

Critical lift triggers: over 75 percent of chart capacity, multiple cranes on one load, lifting personnel, or travel over occupied space or hazardous material; each requires an engineered lift plan.

The load's center of gravity must hang directly below the hook; correct it with hitch selection, leg length adjustment, or tag lines rather than by side-pulling the hoist line.

Synthetic slings come out of service when red warning yarn is visible or for cuts, snags, burns, UV or chemical damage; slings are never knotted, and chain slings need corner protection on sharp edges.

Hand signals follow ASME B30.5 and OSHA 1926.1417; only one designated signal person directs the operator, but any worker may give the emergency stop signal.

Barricade both the swing radius of the rotating superstructure and the area under the load; no worker may stand or pass beneath a suspended load.

Lifting personnel requires an approved platform, a pre-lift trial, a documented lift plan, and a total load not exceeding 50 percent of the crane's rated capacity (OSHA 1926.1431).

Ground bearing: size mats and blocking so outrigger pressure stays below soil bearing capacity, and check for voids, backfilled trenches, septic tanks, and underground utilities.

If the crane contacts an energized line, the operator stays in the cab and warns others away; if escape is necessary, jump clear without touching the machine and shuffle away with feet together.

Stop lifting when wind exceeds the manufacturer's limit or when the load's sail area makes it unmanageable; account for gusting and for loads that catch the wind.

A pre-lift meeting covers the lift plan, rigging, roles, communication method, and hazard controls, and is held with the operator, riggers, signal person, and affected crew.

Fall protection under OSHA 1926.1423 applies to boom walkways and ladders, and pinch, crush, and shear zones between the load, rigging, and crane structure are identified before the lift.

Hoisting engineer licenses in Rhode Island are issued and administered by the Rhode Island Department of Labor and Training under RIGL chapter 28-26.

Operating hoisting equipment without a valid Rhode Island license is prohibited, and both the operator and the employer assigning the work can face enforcement and penalties.

The license class or endorsement printed on the credential defines which equipment types and capacities the holder may operate; working outside that scope is a violation.

The license must be carried or kept available on the job site and produced on demand for inspection by the Department of Labor and Training or law enforcement.

Applicants must meet RIDLT minimum age and experience requirements and pass the required written examination before a license is issued.

Licenses are time limited and must be renewed through RIDLT; operating on an expired license is treated the same as unlicensed operation.

Rhode Island enforces the federal OSHA crane standards of 1926 Subpart CC, including crane operator certification, signal person qualification, and rigger qualification.

The Rhode Island Dig Safe law requires an 811 locate request before excavating or placing outriggers, anchors, and mats where underground utilities may be present, and the state building and fire codes also govern crane placement.