What are the hand signals for crane operation?
There are three common boom signals: Raise boom: Extend an arm outward and point the thumb upward with a closed fist. Lower boom: Extend an arm outward and point the thumb downward with a closed fist. Swing boom: Extend an arm outward, pointing with an index finger in the direction the boom should swing.
What type of hand signals should be used for crane safety OSHA?
Both hands at waist level, closed fists, thumbs point outward. Arm out, closed fist, thumb pointing down, open and close fingers until load movement complete. Tap head with hand. Then use regular signal to indicate desired action.
Where are crane operator hand signals found?
Crane operator hand signals Using standard hand signals is the most widely used manner of signaling a crane operator. A hand signal chart can usually be found on the side of the crane or it should be conspicuously posted in the vicinity of where hoisting operations are being conducted.
What are the hand signals for lifting cargoes?
Use Whip Line (Auxiliary Hoist): Tap elbows with one hand; then use regular signals. Raise Boom: Arm extended, fingers closed, thumb pointing upward. Lower Boom: Arm extended, fingers closed, thumb pointing downward. Swing: Point with a finger in direction of swing of a boom.
What is whip line for crane?
hoist. The secondary hoist is referred to as a “Whip Line”. See Rated Load Indicator. A device which aids the operator by automatically sensing the overturning moment on the crane, i.e. load X radius.
What type of hand signals should be used?
There are three main hand signals that every motorist and cyclist should become familiar with: Left turn, right turn, and slowing down/stopping. To indicate a left turn, extend your left arm out sideways with all your fingers extended.
What is the first element of voice signals given to a crane operator prior to the lift?
What is the first element of voice signals to a crane operators prior to the lift? Function and direction. According to OSHA and ASME B30.
What is API 2C?
API Specification 2C, 8th Edition, Offshore Pedestal-mounted Cranes, incorporates two new design methodologies related to structural considerations and subsea lifting. API Spec 2C is also part of API’s Monogram program, which certifies the manufacturing process for select products used by the industry.
What is the rope on a crane called?
Wire rope is a complex mechanical device that has many moving parts all working in tandem to help support and move an object or load. In the lifting and rigging industries, wire rope is attached to a crane or hoist and fitted with swivels, shackles or hooks to attach to a load and move it in a controlled matter.
When should the crane operator follow hand signals?
This signal should be used when a danger/risk is spotted during the operation. The emergency stop is shown by raising both hands above the head with the palms opened and facing forwards. Once the signal has been delivered, the crane operator should stop all operations to ensure the safety of the team and themselves.