Approved Code of Practice for Cranes
Appendix B - Hand signals
STOP - Extend one arm and hold palm of hand vertical. Note: EMERGENCY STOP is indicated by holding both arms up.
STOP (B) - Arm extended, palm down, move hand right and left. Usually for different level operations.
HOLD EVERYTHING - Clasp hands in front of body.
MOVE SLOWLY - Place one arm motionless across chest in conjunction with or before giving any other directional signal. ("Hoist slowly" shown as example.)
HOIST - With forearm vertical, forefinger pointing up, move hand in horizontal circles.
LOWER - With arm extended downward, forefinger pointing down, move arm in horizontal circles.
USE MAIN HOIST - Tap fist on head, then use regular signals.
USE FLYLINE (AUXILIARY HOIST) - Tap elbow with one hand, then use regular signals.
RAISE BOOM (LUFF UP) - Arm extended, fingers closed, thumb pointing upward.
LOWER BOOM (LUFF DOWN) - Arm extended, fingers closed, thumb pointing downward.
SLEW - Arm extended, point with finger in direction of swing of boom. OVERHEAD GANTRY CRANE - Arm extended, point with finger in the long-travel or cross-travel direction.
RAISE THE BOOM AND LOWER THE LOAD - One arm extended, fingers closed, thumb pointing upward. Other arm extended downward with forefinger pointing down, move arm in horizontal circles.
LOWER THE BOOM AND RAISE THE LOAD - One arm extended, fingers closed, thumb pointing downward. Other arm vertical with forefinger pointing up, move arm in horizontal circles.
EXTEND HYDRAULIC BOOM OR TROLLEY OUT (TOWER CRANE) - Both fists in front of body with thumbs pointing outward.
RETRACT HYDRAULIC BOOM OR TROLLEY IN (TOWER CRANE) - Both fists in front of body with thumbs pointing toward each other.
TRAVEL - Arms bent at the elbows, fists clenched, rotate both forearms around each other, then point in the direction of travel.
TRAVEL (ONE TRACK - CRAWLER CRANES ONLY) - Lock the track on the side indicated by the closed fist. Travel opposite track in the direction indicated by circular motion of other fist rotated vertically in front of body.
FINISHED WITH CRANE - Place arms above head and cross hands.