Operators of truck-mounted articulating knuckle boom cranes need training, along with riggers, signal persons and delivery drivers who work beside them. These cranes move steel road plate, shoring, trench boxes, logs, vehicles and K-rail. The 13-minute English video covers operator duties, pre-start inspection, safety checks, and crane operation.

In construction, truck-mounted knuckle boom cranes generally fall under OSHA's cranes and derricks standard, 29 CFR 1926 Subpart CC. Subpart CC covers operator qualification, inspections, power line clearance and ground conditions. Some material-delivery uses of knuckle boom cranes are exempt under 29 CFR 1926.1400(c)(17).

A knuckle boom crane pre-start inspection should cover hydraulic hoses and fittings, boom sections and pins, and outriggers. Test the controls and safety devices such as load-limiting systems. Check the hook, latch and rigging for damage. Under OSHA's construction crane rules, a competent person must inspect the crane each shift.

Many knuckle boom crane accidents trace back to poor operator training. Common causes include overloading at long reach, setting up on soft ground or without fully extended outriggers, and contacting overhead power lines. Workers under suspended loads or inside the swing radius also face serious struck-by and crushing hazards.

Yes, most knuckle boom crane operators in construction must be certified under 29 CFR 1926.1427 unless an exemption applies. Certification comes from an accredited testing organization or an audited employer program. Employers also must evaluate each operator's ability to run the specific equipment safely.