Operations training
Slinger Signaller Standard / V4 2023-05-02
Extend the Boom
Boom Out
Both fists in front of body with thumbs pointing outwards.
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 Annex 1.1 – Common (OSHA and BS 7121 (verbal instructions and hand signals for controlling crane operations) (Source ASME_B30.5_2004)
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