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Mobile Crane Signals to Know for Crane Operations

The operation of a construction project relies heavily on effective communication and coordination. This ensures efficiency, timeliness, and most of all, the safety of all construction workers and crane operators.

And while a seamless operation boils down to many processes—one of the most crucial roles is that of the crane operator signal person. Since crane operation bears such a significant responsibility in construction projects, a crane signal person must use mobile crane signals to communicate to the crane operator effectively.

The crane refers to the tall machine used primarily in the construction industry to lift, lower, and move heavy objects. And like every type of heavy equipment, this machine can be dangerous if not operated correctly. That’s why a crane operator signal person is necessary. Since cane operators and employees work in such close proximity to the crane, there must be procedures and guidelines put in place to ensure the safety of everyone surrounding the construction site.

Mobile Crane Accidents: Prevention Tips

Mobile crane operators have a risky job and accidents do happen. HEC is sharing a few tips that you can use to aid the prevention of mobile crane accidents on the jobsite.
Free Guide

Why are crane hand signals used?

Hand signals are used during crane operations because construction job sites are loud. With various machines up and running, trucks driving, hammers clanking, and other mechanical noises, this impairs verbal communication.

That’s where the crane signal person comes in. This person is the eyes and ears of the crane operator. The crane signal person instructs the crane operator to safely lift, move, and place the load in the exact location.

By memory, the signal person will know all the signals to communicate to the crane operator. They also must keep up to date with the various crane types utilized in a job site. Some cranes may have different methods of operating, and therefore, will require different hand signals. Let’s take a look at the various mobile crane signals that keep construction operations running smoothly and safely.

Different Crane Hand Signals

All signals given here are motion signals. Please make sure to pay attention to the way your thumb is pointed, if your fingers are extended, etc.

Stop Signals

Emergency Stop Crane Hand Signal
To communicate an emergency stop, a signal person must fully extend both arms horizontally out from the body with palms facing downward, and from there, swing both arms back and forth.

Stop Crane Hand Signal
To stop or pause an action, a signal person must extend one arm horizontally out from the body with a palm facing downward, and from there, swing back and forth.

Dog Everything Hand Signal
To halt all activity, the signal person must clasp hands together and place at waist level.

Boom Signals

Raise Boom
To tell the operator to raise the boom, a signal person must extend one arm horizontally out from the body and signal a thumbs up with a closed fist.

Lower Boom
To tell the operator to lower the boom, the signal person must extend an arm horizontally out from their body and signal a thumbs down with a closed fist.

Swing Boom
To tell the operator to swing the boom, the signal person must extend an arm out horizontally, and use their index finger to point in the direction the boom is to swing.

Extend Boom
To tell the operator to lengthen the boom, the signal person must place hands at the front of their waist in a fist and point only their thumbs outwards.

Retract Boom
To tell the operator to retract the boom, a signal person must use mobile crane signals by placing hands in front of their waist in a fist and point their thumbs toward each other.

Load Signals

Hoist Load
To tell the operator to lift the loads upward, a signal person must extend one arm vertically toward the ceiling or sky, point with their index finger, and make small circular motions.

Lower Load
To tell the operator to lower the load, a signal person must extend one arm vertically, point down toward the floor or ground with their index finger, and make small circular motions.

Speed Signals

Move Slowly
To slow the rate of an action, the signal person must place one hand above the hand that is giving the action signal.

Start Your Heavy Equipment Training

The reasons to become a crane signal operator are plenty. For starters, it’s a highly rewarding profession that’s always in-demand. It allows you to gain real-world experience and make good money. Most importantly, it allows you to make the workplace safer for you and coworkers.

At Heavy Equipment Colleges of America, we provide a range of training programs to prepare for a career in the heavy equipment industry. Our graduates find fulfilling careers in heavy equipment operations and go on to work in leading companies. Best of all, we offer accelerated programs that can train you in as little as three weeks! Ensure the safety of crane operations. Begin your crane operator training with HEC mobile crane programs.

OPEN THE DOOR TO A NEW CAREER!

Locations

CA – San Bernardino:  1955 W. 9th Street | San Bernardino, CA 92411
 
CA – Ft. Irwin:  306 Langford Lake Road | Bld # TR0403 | CA 92310
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(*Location is Veteran Only – DOD Skillbridge/Career Skills Program (CSP) and VA Education Benefits)

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Heavy Equipment Colleges of America endorses the national certification program offered by the National Commission for the Certification of Crane Operators (NCCCO) and provides training to prepare candidates for CCO examinations.

*Skillbridge/Career Skills Program (CSP) prepares service members for civilian employment through first-class apprenticeships, on-the-job training, job shadowing, internships and employment skills training. Service members are eligible to participate in a Skillbridge/Career Skills Program (CSP) up to 180 days prior to separation. To be considered for an open seat in a Skillbridge/Career Skills Program (CSP) you must contact the POC at the installation where you want to attend a Skillbridge/Career Skills Program (CSP) and submit your commander authorized/signed participation memo in advance of the start date.

WIOA/TAA funded training may be provided only to individuals who qualify for the program and not only if funds are available.

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