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Standard Hand Signals. FOR CONTROLLING MOBILE CRANE OPERATIONS HOIST. With upper arm extended . to the side, forearm and index finger pointing straight up, hand and finger make small circles. LOWER: With arm and index finger : pointing down, hand and finger make small circles. USE MAIN HOIST:
HAND SIGNALS – MOBILE CRANES Example 1 (cont.) HAND SIGNALS – MOBILE CRANES Example 1 (cont.) HAND SIGNALS – MOBILE CRANES Example 1 (cont.) Title: Microsoft Word – Crane Safety – Mobile Signals Author: Rick Sink Created Date: 8/19/2008 10:18:46 AM …
simultaneous crane function signals. 5-3.3.6 Special Signals For operations or crane attachments not covered by para. 5-3.3.4, 5-3.3.5, or 5-3.3.7, additions to or modifications of the standard signal procedures may be required. In all such cases, the required special signals shall be agreed upon in advance by the person directing lifting
signals. USE WHIPLINE (Auxiliary Hoist). Tap elbow with one hand; then use regular signals. RAISE BOOM Arm extended, fingers closed, thumb pointing upward. LOWER BOOM Arm extended, fingers closed, thumb pointing downward. MOVE SLOWLY Use one hand to give any motion signal and place other hand motionless in front of hand giving the motion signal.