Or. Admin. Code ch. 437, div. 3, app OR-A
Unit of Study Instruction
SAFETY -- Overview of causes of crane accidents and training in managing the work environment safely.
OR-OSHA CRANE RULES -- Familiarity with OR-OSHA'S Division 3, Construction, Subdivision N, Cranes, Derricks, Hoists, Elevators, and Conveyors.
CRANES AND COMPONENTS -- Types of cranes, names of crane components, selection of cranes for job.
DEFINITIONS OF TERMS -- Center of gravity, radius, gross and net load, static load and dynamic load(s), effective weights, ultimate strength and rated strength, safety factors, stowed and stored, tipping axis, jib angle to ground.
TECHNICAL DATA -- Leverage: when using the crane in general, the hook, block and the boom hoist. Changes in leverage, rate of tipping, forward stability, backward stability, crane failures, gantries, live and high masts, counterweights, effect of boom angle, effects of jib angle, jib as a boom extension, effect of load on booms, production lifts, rope safety factors.
QUADRANTS OF OPERATION DEFINITIONS -- Over the rear, over the side, 360 degree rotation.
WEIGHT OF THE LIFT -- Sources of weight data, calculating weights, principles examples, lifting in water, tests lifts, check lifts.
CONDITIONS & CAPACITIES -- Summary of conditions affecting crane capacities: off-level, wind, eccentric reeving, swing out, side loading, impact loading, outrigger position, ground conditions, counterweights, gantries and high masts, equipment condition, swing bearing wear, tire condition and inflation, boom pad wear, outrigger and pad condition, bent chords and lacings.
MULTIPLE CRANE LIFTS -- Types of equalizer beams, pivot points in lines, pivot points not in-line, load as an equalizer beam, necessary calculations.
CALCULATIONS -- Crane capacities: results of over loading, division of load charts, gross and net capacity, gross and net load, radius between values, boom length between values, boom angle between values, parts of line; calculating capacities: on the boom, on the pinned section, on the extension, on the jib.
PREPARING FOR A LIFT -- Boom assembly and disassembly, reasons to repair/scrap boom sections, Wire rope installation, reeving, wedge sockets, telescoping booms, setting-up, measuring radius, radius over boom angle, outrigger set-up, block outriggers, leveling methods.
CONDITIONS DURING LIFTS -- Swing out, slack rope on drums, pick and carry, lifting on tires, protection of personnel around high voltage and results of making contact, working in the vicinity, effects of electrical current, hitting booms, boom over back, causes of two-blocking, shift of center of gravity, cold weather operation, tipping over backwards.
LEAVING CRANES UNATTENDED -- Short periods, extended periods.
RESPONSIBILITIES -- Management and operator responsibilities.
MISCELLANEOUS -- Signals, composition of wire rope, rope strengths, tables of rates and capacities, determine sling loadings, using blocks and tackle.
CRANE CHECKLIST -- Operator's daily checklist.
ERECTION, DISMANTLING, TRANSPORT -- Erection checklist, bolting procedures, bolting.
INSPECTION & TESTING -- Frequency of inspections, testing maintenance, and storage of crane components.
Or. Admin. Code ch. 437, div. 3, app OR-A
Complete program includes at least one crane specific class in addition to basic core.