Hand Signals for Crane Operations

Hand Signals

Mobile Crane Communications 1.

2.

ANSI B30.5 Hand Signals Standard Hand Signals Who ever is in charge of any crane or hoist operations using any crane or hoist must ensure that a competent, qualified signal person is assigned to work with the crane for as long as it is working within their area of responsibility.

Standard Hand Signals

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The code of federal regulations OSHA CFR Part 1926.550

and the American National Standards Institute (ANSI B30.5) Mobile Crane, Crawler And Locomotive Crane Standards requires that a signalperson be present at all times whenever: 1.

The crane is working within a boom’s length of power lines.

2.

The operator cannot clearly see the load block/hook and the load at all times.

3.

The crane is being backed up or moved and the operator cannot see all parts of the crane and its intended path of travel.

Signal Person Requirements

The signalperson assigned to the crane shall:

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Be positioned in full view of the operator and if using hand signals close enough for the signals to be seen clearly. The signal persons position must give him/her a full view of the load and equipment at all times without creating a hazard of being struck by the crane and/or load.

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The signalperson must be qualified with the crane and lifting operation.

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Responsible for the public and all (unauthorized personnel outside of the crane’s operating radius).

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Direct the load so that it never passes over anyone.

Signal Person Requirements

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Be in constant communication with the operator at all times with either the standard hand signals as required in accordance with ANSI B30.5 or by direct radio communication.

Hand signals should only be used when the distance between the operator and the signalperson is not great and atmospheric conditions allow for clear visibility.

Crane Operation Procedures

Crane operator practices:

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The crane operator Shall Not engage in any practices that will divert attention while actually engaged in operating the crane.

The operator Shall Not engage in the operation of the equipment when physically or mentally unfit.

The operator Shall respond to signals given by a designated signalperson only. The operator Shall obey a stop/emergency stop signal at any time, no matter who gives it,

Crane Operation Procedures

Crane operator practices:

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The crane operator Shall be responsible for those operations under the operator’s direct control.

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Whenever there is any doubt as to the safety, the operator Shall have the authority to stop and refuse to handle loads until safety has been assured.

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If it is desired to give instructions to the operator, other than those provided by the established signal system, the crane operator Shall Stop all crane motions.

ANSI B30.5 - Hand Signals

ANSI B30.5 Standard Hand Signals:

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Standard hand signals to the operator shall be in accordance with the standards that are prescribed in ANSI B30.5-3.3.2, unless voice communication equipment (telephone, radio, or equivalent) are utilized.

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Signals shall be Discernible or audible at all times. No response shall be made unless signals are clearly understood.

Two-Way Radio Communication

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It is strongly recommended that 2-way radios be used on all craning operations where the signaling is required. There are far too many accidents that result from misunderstood or misinterpreted hand signals and all could have been avoided by using voice communication.

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The signalperson must constantly talk to the operator at all times during loading operations. If for any reason the signalperson stops talking the operator must stop the operation.

Adequate lighting arrangements and radio communications must be provided for all night operations.

ANSI B30.5 – Hand Signal Chart Hand signals shall be post on the equipment or conspicuously at the jobsite.

Hand Signals

Signalperson: Signals shall be Discernible or audible at all times. No response shall be made unless signals are clearly understood.

Hand Signals - Hoist

Hoist/Raise the Load: forefinger pointing up, move hand in small horizontal circle.

With the forearm vertical,

Hand Signals - Lower

Lower: circle With the arm extended downward, forefinger pointing down move hand in small horizontal

Hand Signals – Main Hoist

Use Main Hoist: regular signals.

Tap fist on top of head then use

Hand Signals – Whip-line

Use Whip-Line: (Auxiliary Hoist) Tap elbow with one hand, then use regular signals.

Hand Signals – Raise Boom

Raise Boom: Arm extended fingers closed with thumb pointing upward.

Hand Signals – Lower Boom

Lower Boom: Arm extended fingers closed with thumb pointing downward.

Hand Signals – Move Slowly

Move Slowly: Use one hand to give any motion signal and place the other hand motionless in front of hand giving the motion signal (Hoist slowly shown as example).

Hand Signals – Raise Boom & Lower the Load Raise the Boom & Lower the Load: With arm extended, thumb pointing up, flex fingers in and out as long as load movement is desired.

Hand Signals – Lower the Boom & Raise the Load Lower the Boom & Raise the Load: With arm extended, thumb pointing down, flex fingers in and out as long as load movement is desired.

Hand Signals - Swing

Swing: Arm extended, point with finger in direction of swing of boom.

Hand Signals - Stop

Safety Consulting, SOP

Stop: Arm extended, palm down, move arm back and forth horizontally.

Hand Signals – Emergency Stop

Safety Consulting, SOP

Emergency Stop: Both arms extended, palms down, move arms back and forth horizontally.

Hand Signals - Travel

Safety Consulting, SOP

Travel: slightly raised make a pushing motion in direction of travel Arm extended forward hand open and

Hand Signals Dog Everything

Safety Consulting, SOP

Dog Everything: Clasp hands in front of body.

Hand Signals – Travel Both Tracks

Safety Consulting, SOP

Travel Both Tracks: Use both fists in front of body, making a circular motion about each other, indicating direction of travel, forward or backward. (For land cranes only)

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Hand Signals – Travel One Track Travel One Track: Lock the track on side indicated by raising fist. Travel opposite direction indicated by circular motion of other fist, rotated vertically in front of body. (For land cranes only)

Hand Signals – Extend Boom

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Extend Boom: (Hydraulic cranes) Both fists in front of body with thumbs pointing outward.

Hand Signals – Retract Boom

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Retract Boom: front of body with thumbs pointing towards each other.

(Hydraulic cranes) Both fists in

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Hand Signals – Extend Boom One Hand Extend Boom – One Hand Signal: cranes) One fist in front of chest with thumb tapping on chest. (Hydraulic

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Hand Signals – Retract Boom One Hand Retract Boom – One Hand Signal: (Hydraulic cranes) One fist in front of chest with thumb pointing outward and heel of fist tapping on chest.

Safety Consulting, SOP

Hand Signals – Special Hand Signals ANSI B30.5-3.3.3 Special Signals:

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For operations not covered by ANSI B30.5 3.3.2, or for special conditions that occur from time to time, additions to or modifications of the standard signals may be required. In all such cases, these special signals shall be agreed upon in advance by both the operator and the signalperson, and should not be in conflict with the standard signals.

Audible Travel Signals

Safety Consulting, SOP

ANSI B30.5-3.3.4 Audible Travel Signals: 1.

When moving the vehicle, the following signals shall be used; A.

STOP One Audible Signal B.

GO AHEAD Two Audible Signals C.

BACK-UP Three Audible Signals

Safety Consulting, SOP

Hand Signals – Special Hand Signals ANSI B30.5-3.3.5 Instructions:

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If it is desired to give instructions to the crane operator, other than those provided by the established signal system, the crane motions shall be stopped.

Hand Signals - Test

Safety Consulting, SOP

1. Identify this hand signal?

A.

Travel One Track B.

Travel Both Tracks C.

Dog Everything D.

Stop

Hand Signals - Test

Safety Consulting, SOP

2. Identify this hand signal?

A.

Stop B.

Move Slowly C.

Dog Everything D.

Emergency Stop

Hand Signals - Test

Safety Consulting, SOP

3. Identify this hand signal?

A.

Extend Boom B.

Raise Boom C.

Retract Boom D.

Travel To Me

Hand Signals - Test

Safety Consulting, SOP

4. Identify this hand signal?

A.

Raise Boom Lower Load B.

Raise Boom Slowly C.

Lower The Boom And Raise The Load D.

None Of The Above

Hand Signals - Test

Safety Consulting, SOP

5. Identify this hand signal?

A.

Travel Forward B.

Travel One Track C.

Travel Both Tracks D.

None Of The Above

Hand Signals - Test

Safety Consulting, SOP

6. Identify this hand signal?

A.

Raise Boom B.

Extend Boom C.

Retract Boom D.

None Of The Above

Hand Signals - Test

Safety Consulting, SOP

7. Identify this hand signal?

A.

Raise Boom Slowly B.

Hoist Slowly C.

Swing Slowly D.

None Of The Above

Hand Signals - Test

Safety Consulting, SOP

9. Identify this hand signal?

A.

Raise Boom Slowly B.

Use Main Hoist C.

Use Auxiliary Hoist D.

Dog Everything

Hand Signals - Test

Safety Consulting, SOP

10. Identify this hand signal?

A.

Use Auxiliary Hoist B.

Swing Left C.

Travel One Track D.

Dog Everything

Hand Signals - Test

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11. The operator will only respond to signals only from:? A.

Designated Signalperson B.

Qualified Signalperson C.

Experienced Signalperson D.

All Of The Above

Hand Signals - Test

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12. All mobile cranes must meet or exceed what ANSI crane standard for personnel lifting?

A.

ANSI B30.2

B.

ANSI B30.8

C.

ANSI B30.5

D.

None Of The Above

Questions?

Test Time!!

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