GWO Slinger Signaller V2.0
2021-04-01_TS_SLS_V2
Retract the Boom
Boom In
Both fists in front of body with thumbs pointing toward each other.
Move slowly
Slowly ...
Use one hand to give any motion signal and place other hand above the hand giving the motion signal. (slowly raise the load shown as an example)
Hoist slowly
Lower slowly
Table A1-1 - Common (OSHA and BS 7121) verbal instructions and hand signals for controlling crane operations (Source ASME B30.5_2004)
Global Wind Organisation www.globalwindsafety.org
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